Climate and average weather in Eagle

In Eagle, the summers are hot, dry, and clear and the winters are cold, snowy, and partly cloudy.

Best: late August to mid October

Over the course of the year, the temperature in Eagle typically varies from 23°F to 89°F, and is rarely below 8°F or above 98°F. July is the hottest month of the year, while December is the coldest.

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

Hottest
Jul
89°
Coldest
Dec
23°
Wettest
Dec
2.7 in
Driest
Jul
0.2 in
Rain / yr
16.9 in
82 wet days
Daylight
8.7–15.3 h
shortest–longest
Elevation
2,566 ft
43.7°N
Clearest
Jul
22% cloud

Eagle is city in Ada County, Idaho, United States.

Density
310/km²
people per km²

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

Eagle 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 late August to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.1 months, from June 15 to September 16, with daily high temperatures above 77°F. The hottest month of the year in Eagle is July, with an average high of 89°F and low of 58°F.

The cool season lasts 3.4 months, from November 17 to February 28, with daily high temperatures below 47°F. The coldest month of the year in Eagle is December, with an average low of 23°F and high of 37°F.

Days typically run about 22°F warmer than nights, with the widest day–night swing (around 31°F) in July.

20°40°60°80°100°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°F)Avg low (°F)
Jan3723
Feb4327
Mar5232
Apr6037
May6944
Jun7851
Jul8958
Aug8757
Sep7749
Oct6239
Nov4730
Dec3723

How hot and cold Eagle 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 hottest afternoons, once humidity is folded in, Eagle feels like about 91°F (around July 27). About 19 days a year carry some heat stress, peaking in July.

On the coldest nights, wind chill pulls the feels-like down to about 16°F (around December 27), with roughly 173 freezing days a year (feels-like at or below 32°F), worst in December.

20°40°60°80°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°F)Air high (°F)Feels-like low (°F)Air low (°F)
Jan37371723
Feb43432127
Mar52522732
Apr60603237
May69694144
Jun78785051
Jul88895858
Aug87875757
Sep77774849
Oct62623639
Nov47472530
Dec37371723

Average hourly temperature in Eagle

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 89°F, and coldest before dawn in December, near 23°F.

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

Eagle 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°2.410.76.69.10.0
Feb43° / 27°1.79.24.310.20.6
Mar52° / 32°2.010.62.511.62.8
Apr60° / 37°1.78.60.513.24.9
May69° / 44°1.67.50.114.56.9
Jun78° / 51°0.83.9015.27.9
Jul89° / 58°0.21.2014.95.6
Aug87° / 57°0.21.5013.86.0
Sep77° / 49°0.62.6012.38.4
Oct62° / 39°1.250.110.86.2
Nov47° / 30°1.99.639.51.5
Dec37° / 23°2.711.26.98.80.0

Chance of rain

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

Eagle gets about 16.9 in of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 7.0 months, from around Oct 28 to May 27, peaking in December at about 36% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 16.

December is the wettest month by volume, with 2.7 in over about 11 wet days; July is the driest, with 0.2 in. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 1 · 36%Jul 16 · 3%
Rain on a day (%)Rain days
Jan3511
Feb339
Mar3411
Apr299
May248
Jun134
Jul41
Aug52
Sep93
Oct165
Nov3210
Dec3511

Monthly rainfall

Over a full year, Eagle collects about 16.9 in of rain across 82 wet days — roughly 1.4 in in an average month.

It doesn’t fall evenly. December is the wettest month with 2.7 in, while July is the driest at just 0.2 in. The three wettest months alone bring about 42% of the year’s total, and some of the cold-season precipitation falls as snow.

00.511.522.533.5JanFebMarAprMayJunJulAugSepOctNovDec2.41.72.01.71.60.80.20.20.61.21.92.7
Rainfall (in)Rain daysSnow days
Jan2.4117
Feb1.794
Mar2.0113
Apr1.791
May1.680
Jun0.840
Jul0.210
Aug0.220
Sep0.630
Oct1.250
Nov1.9103
Dec2.7117

Snow in Eagle

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.

Eagle averages about 24 snowy days a year. Snow season runs roughly Oct 29 to Apr 16 — about 5.6 months.

December is snowiest, with roughly 6 days of snow and an estimated 11 in of snowfall. Over the year that adds up to an estimated 36 in of snow.

02468JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonDec 29
Snow daysSnowfall (in)
Jan711
Feb46
Mar32
Apr11
May00
Jun00
Jul00
Aug00
Sep00
Oct00
Nov35
Dec711

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

The clearer part of the year begins around June 3 and lasts for 4.8 months, ending around October 27. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 87% of the time on average.

The cloudier part of the year begins around October 28 and lasts for 7.2 months, ending around June 2. The cloudiest month is January, when it is overcast or mostly cloudy 59% 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%JanFebMarAprMayJunJulAugSepOctNovDecJul 25 · 89%Jan 4 · 38%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4159
Feb4357
Mar4357
Apr5050
May5644
Jun7129
Jul8713
Aug8713
Sep7921
Oct6733
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 18, brings about 15 h 18 min of light; the shortest, around December 18, only 8 h 42 min — a swing of roughly 6 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.18:225:27
Feb10.27:546:06
Mar11.67:066:44
Apr13.26:107:22
May14.55:267:57
Jun15.25:088:23
Jul14.95:228:20
Aug13.85:557:44
Sep12.36:316:49
Oct10.87:075:54
Nov9.57:485:13
Dec8.88:195:04

Sunny days

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

Eagle averages about 14 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 24 days.

The sunnier stretch runs 4.7 months, from around Jun 7 to Oct 27. The sunniest month is August, with roughly 24 sunny days (brilliant).

The greyest month is March, down near 8 sunny days — about 67% fewer than the August peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2024 daysMar 168 days
Sunny daysSky
Jan9Mixed
Feb8Mixed
Mar8Gloomy
Apr9Mixed
May12Mixed
Jun16Bright
Jul23Bright
Aug24Brilliant
Sep20Bright
Oct16Bright
Nov10Mixed
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 Eagle, the air stays dry or comfortable essentially all year. Even in June, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdry
Dry (%)Comfortable (%)
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul991
Aug991
Sep991
Oct1000
Nov1000
Dec1000

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.

Wind in Eagle is steady company: average speeds sit near 5 mphcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 2 · 6 mphJan 19 · 4 mph
Wind speed (mph)Feels
Jan4calm
Feb5calm
Mar5calm
Apr6calm
May5calm
Jun5calm
Jul5calm
Aug5calm
Sep5calm
Oct5calm
Nov5calm
Dec5calm

Best time to visit Eagle

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early October, Eagle 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 Eagle for general outdoor tourist activities run from mid May to early July and again from late August to mid October, with a peak score in the third week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationSep 20 · 8.5

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
Feb0.6poor
Mar2.8poor
Apr4.9fair
May6.9good
Jun7.8ideal
Jul5.7good
Aug6.0good
Sep8.3ideal
Oct6.1good
Nov1.6poor
Dec0.0poor

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 Eagle for hot-weather activities is from mid June to late September, with a peak score in the last week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 27 · 8.9

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 Eagle, 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 89°F), the essentials are light clothes and sun protection. In the cold season around December (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, Eagle sees daytime highs around 89°F and nights near 58°F. Pack light clothes and sun protection.

UV index (midday) in Eagle 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 Eagle peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 13UV 9Dec 14UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Average hourly UV index in Eagle

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 8.5 hours a day reach index 3 (protection recommended), and 5.5 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
Mar40
Apr60
May84
Jun8.55
Jul8.55.5
Aug7.53.5
Sep5.50
Oct3.50
Nov00
Dec00

Air quality in Eagle 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 Eagle is worst in August — around 45 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (December, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodAug 1742 µg/m³Dec 208 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar10Good
Apr10Good
May10Good
Jun8Good
Jul20Moderate
Aug45Poor
Sep21Moderate
Oct15Moderate
Nov9Good
Dec7Good
Almanac & agriculture

Growing season

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

The growing season in Eagle typically lasts about 241 days, from around March 12 to November 7 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 1 to October 12.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 1250%May 190%Oct 1290%Nov 750%
Frost-free chance (%)Frost nights
Jan1731
Feb2428
Mar5231
Apr7830
May971
Jun1000
Jul1000
Aug1000
Sep990
Oct8420
Nov4030
Dec1631

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. Eagle banks about 2,503 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
Apr6
May202
Jun428
Jul718
Aug691
Sep394
Oct64
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.

Eagle receives about 4.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.6 and 8.1 kWh/m².

The brighter stretch of the year lasts 6.0 months, from around Mar 27 to Sep 25. The brightest month is July, averaging about 8.0 kWh/m² (intense).

The dimmest month is December, down near 1.7 kWh/m² — roughly 79% less than the July peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 68.1 kWhDec 161.6 kWh
Solar energy (kWh/m²)Level
Jan1.9Dim
Feb2.9Moderate
Mar4.3Bright
Apr5.8Bright
May7.0Intense
Jun7.7Intense
Jul8.0Intense
Aug7.0Intense
Sep5.4Bright
Oct3.6Moderate
Nov2.1Moderate
Dec1.6Dim

Where is Eagle?

Eagle sits at 43.7°N, 116.4°W, 2,566 ft above sea level, in United States. The nearest listed city is Meridian, 6.2 mi away.

Topography around Eagle

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

Within 2 miles, the terrain around Eagle has only modest variations in elevation — a maximum elevation change of 171 ft around an average of 2,585 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,274 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,116 ft.

The land around Eagle is covered by trees (42%), grassland (24%) and artificial surfaces (22%) within 2 miles, grassland (54%) within 10 miles, and grassland (64%) within 50 miles.

2 miles
171 ft
10 miles
3,274 ft
50 miles
7,116 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Meridian 6.2 mi · Boise 9.3 mi · Kuna 14 mi · Nampa 15 mi · Caldwell 17 mi · Twin Falls 124 mi · Pendleton 181 mi · Lewiston Orchards 188 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 Eagle (43.6954°, -116.354°, elevation 2,566 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).