Amherst weather in January

In January, Amherst sees average daytime highs of 34°F and overnight lows near 19°F, with 3.3 in of precipitation across 9.6 wet days and about 9.3 hours of daylight. It is the 12th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°F through the month. The sky is clear or mostly clear about 32% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 54 min at the start of January to 9 h 42 min by month's end. Set against the rest of the year, January is Amherst's 6th-clearest and 3rd-windiest month. For the whole year in context, see Amherst's year-round climate.

Daytime high
34°
12th warmest
Overnight low
19°
1st coldest
Precipitation
3.3 in
9.6 wet days
Daylight
9 h 12 min
7:23 AM – 4:36 PM
Cloud cover
59%
6th clearest
Wind
7 mph
3rd windiest
Solar energy
2 kWh/m²
Travel score
0.0
out of 10

Amherst is town in Hampshire County, Massachusetts, United States.

Founded
1703

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°F through the month.

A typical January day in Amherst reaches about 34°F in the afternoon and slips back to 19°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 21°F and 47°F. Set against its neighbours, January runs about 5°F cooler than December and about 3°F cooler than February.

20°40°151015202531
Avg high (°F)Avg low (°F)
13622
23622
33622
43622
53621
63521
73521
83521
93520
103520
113520
123420
133419
143419
153419
163419
173419
183418
193318
203318
213318
223318
233318
243318
253418
263418
273418
283418
293418
303418
313418

How January really feels in Amherst

Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 31 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
31
31 feel bitter (≤ 14°F)

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Amherst weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan34° / 19°3.39.66.39.30.0
Feb37° / 21°3.08.75.810.30.0
Mar45° / 29°4.010.34.811.61.0
Apr57° / 39°3.610.71.213.14.0
May68° / 49°3.210.6014.46.1
Jun77° / 58°3.510.80156.6
Jul82° / 64°3.39.9014.86.2
Aug80° / 62°3.38.7013.76.7
Sep73° / 55°3.78.3012.37.0
Oct61° / 44°4.29.10.210.85.1
Nov49° / 34°3.39.11.29.62.1
Dec39° / 26°4.110.1590.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44852
54852
64753
74654
84654
94654
104654
114753
124753
134753
144852
154852
164852
174951
184951
194951
205050
215050
225149
235149
245248
255248
265248
275248
285248
295248
305248
315149

Chance of precipitation in January

Any precipitationSnow

Amherst gets around 3.3 in of rain and snow over 9.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 35% on the wettest days, and about 6 days bring snow. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13419
23419
33520
43520
53521
63521
73521
83522
93422
103422
113423
123323
133323
143223
153222
163122
173122
183021
193021
202920
212920
222820
232820
242719
252719
262719
272719
282718
292718
302719
312819

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 7 mph in January.

Across January, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 54 min at the start of January to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over January. Sunrise moves from 7:25 AM to 7:13 AM, and sunset from 4:22 PM to 4:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.97:254:22
29.07:254:22
39.07:254:23
49.07:254:24
59.07:254:25
69.07:254:26
79.07:254:27
89.07:254:28
99.17:254:29
109.17:244:30
119.17:244:31
129.17:244:32
139.27:244:33
149.27:234:34
159.27:234:35
169.27:234:36
179.27:224:37
189.37:224:38
199.37:214:39
209.37:214:41
219.47:204:42
229.47:204:43
239.47:194:44
249.57:184:45
259.57:184:47
269.57:174:48
279.57:164:49
289.67:154:50
299.67:154:52
309.77:144:53
319.77:134:54

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2 kWh/m².

For context, solar energy here swings from a low near 1.62 kWh/m² to a high of 5.9 kWh/m² in July across the year — January's 2 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.7Dim
41.7Dim
51.7Dim
61.8Dim
71.8Dim
81.8Dim
91.8Dim
101.8Dim
111.8Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
162.0Dim
172.0Moderate
182.0Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.5Moderate
Planning a trip in January

Is January a good time to visit Amherst?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Amherst.

What to pack for Amherst in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Amherst sees daytime highs around 34°F and nights near 19°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Amherst in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Amherst peaks around July 11 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 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 11UV 7Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun7Very high
Jul8Very high
Aug5High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Amherst in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Amherst is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1615 µg/m³Nov 197 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar12Good
Apr12Good
May13Moderate
Jun14Moderate
Jul15Moderate
Aug13Moderate
Sep11Good
Oct9Good
Nov7Good
Dec8Good
Location & terrain

Where is Amherst?

Amherst sits at 42.4°N, 72.5°W, 269 ft above sea level, in United States. The nearest listed city is Amherst Center, 0.6 mi away.

Topography around Amherst

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

Within 2 miles, the terrain around Amherst has only modest variations in elevation — a maximum elevation change of 374 ft around an average of 220 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,260 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,583 ft.

The land around Amherst is covered by trees (58%) and grassland (23%) within 2 miles, trees (79%) within 10 miles, and trees (91%) within 50 miles.

2 miles
374 ft
10 miles
1,260 ft
50 miles
3,583 ft
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Amherst Center 0.6 mi · Northampton 6.8 mi · South Hadley 8.1 mi · Easthampton 11 mi · Holyoke 12 mi · North Chicopee 13 mi · Ludlow 14 mi · Chicopee 16 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 Amherst (42.3672°, -72.5185°, elevation 269 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).