Climate and average weather in Easton

In Easton, the summers are hot, showery, and partly cloudy and the winters are cold, snowy, and partly cloudy.

Best: early August to mid October

Over the course of the year, the temperature in Easton typically varies from 23°F to 84°F, and is rarely below 6°F or above 93°F. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit Easton for warm-weather activities are from late April to early July and early August to mid October.

Hottest
Jul
84°
Coldest
Jan
23°
Wettest
Sep
4.3 in
Driest
Feb
3.1 in
Rain / yr
45.4 in
118 wet days
Daylight
9.1–14.9 h
shortest–longest
Elevation
318 ft
40.7°N
Clearest
Oct
55% cloud

Easton is city in and the county seat of Northampton County, Pennsylvania, United States of America.

Density
2,217/km²
people per km²
Founded
1752

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Easton weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early August to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Easton, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.1 months, from May 23 to September 23, with daily high temperatures above 73°F. The hottest month of the year in Easton is July, with an average high of 84°F and low of 65°F.

The cool season lasts 3.2 months, from December 2 to March 7, with daily high temperatures below 46°F. The coldest month of the year in Easton is January, with an average low of 23°F and high of 37°F.

Days typically run about 17°F warmer than nights, with the widest day–night swing (around 19°F) in June.

20°40°60°80°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°F)Avg low (°F)
Jan3723
Feb4024
Mar4831
Apr6042
May7051
Jun7960
Jul8465
Aug8264
Sep7556
Oct6345
Nov5135
Dec4128

How hot and cold Easton really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about 12°F (around January 23), with roughly 147 freezing days a year (feels-like at or below 32°F) 26 of them bitterly cold — worst in January.

20°40°60°80°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°F)Air high (°F)Feels-like low (°F)Air low (°F)
Jan37371423
Feb40401524
Mar48482431
Apr60603742
May70705051
Jun80796060
Jul85846565
Aug83826464
Sep75755656
Oct63634245
Nov51513035
Dec41412128

Average hourly temperature in Easton

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 84°F, and coldest before dawn in January, near 23°F.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Easton weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 23°3.69.65.29.40.0
Feb40° / 24°3.18.94.610.40.1
Mar48° / 31°4.110.93.811.71.8
Apr60° / 42°3.910.70.513.14.7
May70° / 51°3.711.4014.26.2
Jun79° / 60°4.111014.96.3
Jul84° / 65°3.610.2014.65.4
Aug82° / 64°3.79.8013.66.1
Sep75° / 56°4.38.8012.37.0
Oct63° / 45°4.18.70.210.95.7
Nov51° / 35°3.38.30.89.72.7
Dec41° / 28°4.19.93.49.10.3

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Easton gets about 45.4 in of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 4.7 months, from around Feb 15 to Jul 7, peaking in June at about 37% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Nov 2.

September is the wettest month by volume, with 4.3 in over about 9 wet days; February is the driest, with 3.1 in. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 3 · 37%Nov 2 · 26%
Rain on a day (%)Rain days
Jan3110
Feb329
Mar3411
Apr3611
May3711
Jun3611
Jul3310
Aug3210
Sep289
Oct289
Nov298
Dec3210

Monthly rainfall

Over a full year, Easton collects about 45.4 in of rain across 118 wet days — roughly 3.8 in in an average month.

It doesn’t fall evenly. September is the wettest month with 4.3 in, while February is the driest at just 3.1 in. The three wettest months alone bring about 28% of the year’s total, and some of the cold-season precipitation falls as snow.

012345JanFebMarAprMayJunJulAugSepOctNovDec3.63.14.13.93.74.13.63.74.34.13.34.1
Rainfall (in)Rain daysSnow days
Jan3.6105
Feb3.195
Mar4.1114
Apr3.9111
May3.7110
Jun4.1110
Jul3.6100
Aug3.7100
Sep4.390
Oct4.190
Nov3.381
Dec4.1103

Snow in Easton

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Easton averages about 19 snowy days a year. Snow season runs roughly Nov 10 to Apr 15 — about 5.2 months.

February is snowiest, with roughly 5 days of snow and an estimated 14 in of snowfall. Over the year that adds up to an estimated 50 in of snow.

02468JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonFeb 11
Snow daysSnowfall (in)
Jan512
Feb514
Mar412
Apr11
May00
Jun00
Jul00
Aug00
Sep00
Oct00
Nov12
Dec39

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Easton, the average share of the sky covered by clouds shows mild seasonal variation over the course of the year.

The clearer part of the year begins around June 26 and lasts for 4.9 months, ending around November 20. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 52% of the time on average.

The cloudier part of the year begins around November 21 and lasts for 7.1 months, ending around June 25. The cloudiest month is April, when it is overcast or mostly cloudy 60% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecOct 4 · 53%Dec 10 · 39%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4060
Feb4258
Mar4159
Apr4060
May4258
Jun4357
Jul4951
Aug4951
Sep5248
Oct5149
Nov4753
Dec4159

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 11, brings about 14 h 54 min of light; the shortest, around January 1, only 9 h 06 min — a swing of roughly 5 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.47:294:52
Feb10.47:045:27
Mar11.76:216:00
Apr13.15:296:34
May14.24:497:05
Jun14.94:347:28
Jul14.64:477:26
Aug13.65:166:54
Sep12.35:476:03
Oct10.96:195:13
Nov9.76:554:37
Dec9.17:244:30

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Easton averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 12 days.

The sunnier stretch runs 3.2 months, from around Aug 17 to Nov 22. The sunniest month is October, with roughly 11 sunny days (mixed).

The greyest month is June, down near 7 sunny days — about 37% fewer than the October peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedOct 712 daysJun 37 days
Sunny daysSky
Jan8Gloomy
Feb8Mixed
Mar8Gloomy
Apr7Gloomy
May7Gloomy
Jun7Gloomy
Jul8Mixed
Aug9Mixed
Sep11Mixed
Oct12Mixed
Nov9Mixed
Dec8Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Easton, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.3 months, from around May 23 to September 30. The muggiest month is July, when the air feels humid, muggy or worse about 63% of the time.

The most comfortable stretch runs from around October 1 to May 22, and January is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 1 · 100%Jul 24 · 33%oppressivemuggydryhumidcomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr954100
May72151030
Jun352322173
Jul172026279
Aug232124257
Sep501917122
Oct858610
Nov973100
Dec991000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Easton is typically calm, near 6 mph, and varies little with the seasons.

The windier part of the year lasts 6.7 months, from around Oct 15 to May 6. The windiest month is March, averaging about 7 mph (calm).

The calmer part of the year runs from around May 7 to Oct 14, with August the calmest month at about 5 mph.

0510JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeMar 5 · 7 mphAug 6 · 5 mph
Wind speed (mph)Feels
Jan7calm
Feb7calm
Mar7calm
Apr7calm
May6calm
Jun5calm
Jul5calm
Aug5calm
Sep6calm
Oct6calm
Nov7calm
Dec7calm

Best time to visit Easton

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Easton throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around early October, Easton is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 64°F and 82°F. Based on this score, the best times of year to visit Easton for general outdoor tourist activities run from late April to early July and again from mid August to mid October, with a peak score in the second week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationSep 14 · 7.1

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan0.0poor
Feb0.1poor
Mar1.8poor
Apr4.7fair
May6.2good
Jun6.3good
Jul5.4fair
Aug6.1good
Sep7.0good
Oct5.6good
Nov2.7poor
Dec0.3poor

The beach/pool score favors clear, rainless days with daytime highs between 75°F and 93°F. Based on this score, the best time of year to visit Easton for hot-weather activities is from early June to late September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 12 · 7.0

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Easton, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 84°F), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 37°F), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Easton sees daytime highs around 84°F and nights near 65°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

UV index (midday) in Easton by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Easton peaks around July 10 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 10UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Average hourly UV index in Easton

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 4.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar50
Apr60
May7.54
Jun85
Jul84.5
Aug6.52
Sep5.50
Oct2.50
Nov00
Dec00

Air quality in Easton by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Easton is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1518 µg/m³Nov 149 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar14Moderate
Apr14Moderate
May16Moderate
Jun17Moderate
Jul18Moderate
Aug15Moderate
Sep13Moderate
Oct10Good
Nov9Good
Dec10Good
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Easton typically lasts about 255 days, from around March 20 to November 29 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 16 to October 25.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2050%Apr 1690%Oct 2590%Nov 2950%
Frost-free chance (%)Frost nights
Jan1931
Feb2028
Mar4731
Apr8814
May990
Jun1000
Jul1000
Aug1000
Sep1000
Oct944
Nov6530
Dec3331

Growing degree days

Degree days (base 50°F)Frost-free shaded

Growing degree days tally heat above 50°F: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Easton banks about 3,069 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°F·days)
Jan0
Feb0
Mar0
Apr55
May329
Jun596
Jul770
Aug714
Sep474
Oct130
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Easton receives about 4.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.7 and 6.1 kWh/m².

The brighter stretch of the year lasts 6.2 months, from around Mar 15 to Sep 20. The brightest month is July, averaging about 5.9 kWh/m² (bright).

The dimmest month is December, down near 1.7 kWh/m² — roughly 70% less than the July peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 26.1 kWhDec 161.7 kWh
Solar energy (kWh/m²)Level
Jan2.1Moderate
Feb3.0Moderate
Mar4.0Bright
Apr5.0Bright
May5.6Bright
Jun6.0Bright
Jul5.9Bright
Aug5.2Bright
Sep4.2Bright
Oct3.1Moderate
Nov2.2Moderate
Dec1.7Dim

Where is Easton?

Easton sits at 40.7°N, 75.2°W, 318 ft above sea level, in United States. The nearest listed city is Bethlehem, 8.7 mi away.

Topography around Easton

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Easton.

Within 2 miles, the terrain around Easton has only modest variations in elevation — a maximum elevation change of 669 ft around an average of 348 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,191 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,516 ft.

The land around Easton is covered by trees (48%) and artificial surfaces (32%) within 2 miles, trees (50%), cropland (21%) and grassland (20%) within 10 miles, and trees (75%) within 50 miles.

2 miles
669 ft
10 miles
1,191 ft
50 miles
2,516 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Bethlehem 8.7 mi · Whitehall Township 15 mi · Allentown 15 mi · Bridgewater 30 mi · Lansdale 31 mi · Hopatcong Hills 34 mi · Hillsborough 34 mi · Basking Ridge 35 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Easton (40.6884°, -75.2207°, elevation 318 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).