Hagerstown weather in January

In January, Hagerstown sees average daytime highs of 39°F and overnight lows near 25°F, with 3.1 in of precipitation across 8.8 wet days and about 9.5 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 39°F through the month. The sky is clear or mostly clear about 24% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of January to 9 h 54 min by month's end. Set against the rest of the year, January is Hagerstown's 12th-clearest and 3rd-windiest month. For the whole year in context, see Hagerstown's year-round climate.

Daytime high
39°
12th warmest
Overnight low
25°
1st coldest
Precipitation
3.1 in
8.8 wet days
Daylight
9 h 30 min
7:36 AM – 5:05 PM
Cloud cover
65%
12th clearest
Wind
7 mph
3rd windiest
Solar energy
2.11 kWh/m²
Travel score
0.0
out of 10

Hagerstown is city in Maryland, United States.

Density
1,323/km²
people per km²
Founded
1762

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 39°F through the month.

A typical January day in Hagerstown reaches about 39°F in the afternoon and slips back to 25°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 26°F and 53°F. Set against its neighbours, January runs about 4°F cooler than December and about 3°F cooler than February.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14127
24127
34027
44027
54027
64026
74026
84026
94026
104026
113926
123926
133925
143925
153925
163925
173924
183824
193824
203824
213824
223824
233824
243824
253824
263924
273924
283924
293924
303924
314024

How January really feels in Hagerstown

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
wind chill below the day's low

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

Hagerstown weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 25°3.18.83.79.50.0
Feb42° / 26°2.78.23.710.40.4
Mar52° / 34°3.710.32.711.72.6
Apr64° / 44°3.510.30.2135.5
May73° / 54°3.611.7014.26.4
Jun81° / 63°3.310.3014.76.1
Jul86° / 67°3.210.2014.55.1
Aug84° / 66°2.68.7013.65.7
Sep77° / 59°3.98.8012.37.0
Oct65° / 47°3.37.80.110.96.2
Nov53° / 37°3.07.80.59.83.2
Dec43° / 29°3.38.42.39.20.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24159
34159
43961
53961
64060
73961
83961
93961
104060
113961
123961
133961
143961
153961
163961
173862
183763
193763
203763
213862
223961
233961
243961
253961
263961
273961
283961
294060
304060
314060

Chance of precipitation in January

Any precipitationSnow

Hagerstown gets around 3.1 in of rain and snow over 8.8 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 28% and peaks near 30% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1279
2289
3289
4299
52910
62910
73010
83010
93011
103011
113011
123012
133012
143012
153012
162912
172913
182913
192913
202813
212813
222813
232713
242713
252713
262713
272713
282713
292714
302714
312714

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
9991
10991
11991
12991
13991
14991
15991
16991
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

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 9 h 12 min at the start of January to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 7:37 AM to 7:27 AM, and sunset from 4:51 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.27:374:51
29.37:374:52
39.37:374:53
49.37:374:54
59.37:374:54
69.37:374:55
79.37:374:56
89.37:374:57
99.37:374:58
109.47:374:59
119.47:375:00
129.47:375:01
139.47:365:02
149.47:365:03
159.57:365:04
169.57:365:05
179.57:355:06
189.57:355:07
199.67:345:08
209.67:345:09
219.67:345:10
229.67:335:11
239.77:325:12
249.77:325:13
259.77:315:15
269.77:315:16
279.87:305:17
289.87:295:18
299.87:295:19
309.97:285:20
319.97:275:21

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.11 kWh/m².

For context, solar energy here swings from a low near 1.8 kWh/m² to a high of 6.14 kWh/m² in June across the year — January's 2.11 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.9Dim
31.9Dim
41.9Dim
51.9Dim
61.9Dim
71.9Dim
81.9Dim
91.9Dim
102.0Dim
112.0Dim
122.0Moderate
132.0Moderate
142.0Moderate
152.1Moderate
162.1Moderate
172.1Moderate
182.1Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in January

Is January a good time to visit Hagerstown?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Hagerstown.

What to pack for Hagerstown in January

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

In January, Hagerstown sees daytime highs around 39°F and nights near 25°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

UV index in Hagerstown in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hagerstown peaks around July 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 10UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Hagerstown 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 Hagerstown is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Nov 137 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar12Good
Apr12Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Hagerstown?

Hagerstown sits at 39.6°N, 77.7°W, 538 ft above sea level, in United States. The nearest listed city is Martinsburg, 18 mi away.

Topography around Hagerstown

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

Within 2 miles, the terrain around Hagerstown has only modest variations in elevation — a maximum elevation change of 213 ft around an average of 568 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,663 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,825 ft.

The land around Hagerstown is covered by trees (39%) and artificial surfaces (38%) within 2 miles, trees (40%), cropland (29%) and grassland (24%) within 10 miles, and trees (63%) and grassland (20%) within 50 miles.

2 miles
213 ft
10 miles
1,663 ft
50 miles
2,825 ft
treesgrasslandcroplandartificial surfacesbare terrain
January weather nearby: Martinsburg 18 mi · Chambersburg 21 mi · Frederick 23 mi · Ballenger Creek 24 mi · Damascus 37 mi · Leesburg 37 mi · Westminster 39 mi · Winchester 39 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 Hagerstown (39.6418°, -77.72°, elevation 538 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).