Brockton weather in January

In January, Brockton sees average daytime highs of 37°F and overnight lows near 24°F, with 3.6 in of precipitation across 9.7 wet days and about 9.3 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 37°F through the month. The sky is clear or mostly clear about 35% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of January to 9 h 42 min by month's end. Set against the rest of the year, January is Brockton's 4th-clearest and 2nd-windiest month. For the whole year in context, see Brockton's year-round climate.

Daytime high
37°
12th warmest
Overnight low
24°
1st coldest
Precipitation
3.6 in
9.7 wet days
Daylight
9 h 18 min
7:16 AM – 4:31 PM
Cloud cover
58%
4th clearest
Wind
9 mph
2nd windiest
Solar energy
1.99 kWh/m²
Travel score
0.0
out of 10

Brockton is city in Massachusetts, United States.

Density
1,710/km²
people per km²
Founded
1700

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 37°F through the month.

A typical January day in Brockton reaches about 37°F in the afternoon and slips back to 24°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 24°F and 51°F. Set against its neighbours, January runs about 5°F cooler than December and about 2°F cooler than February.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
13926
23926
33926
43926
53825
63825
73825
83825
93825
103825
113824
123724
133724
143724
153724
163723
173723
183723
193723
203723
213623
223622
233622
243622
253722
263722
273722
283722
293723
303723
313723

How January really feels in Brockton

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
16 feel bitter (≤ 14°F)

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

Brockton weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 24°3.69.75.49.30.0
Feb39° / 25°3.29.14.910.30.0
Mar46° / 31°4.411.14.611.71.2
Apr56° / 41°3.711.20.913.13.7
May66° / 50°3.010.7014.45.8
Jun76° / 59°3.49.70156.7
Jul82° / 65°3.09.9014.86.4
Aug80° / 64°3.59.6013.76.7
Sep73° / 57°3.58.1012.37.0
Oct62° / 47°4.19.50.110.85.4
Nov51° / 37°3.68.90.79.62.7
Dec42° / 29°4.310.63.890.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
25050
35050
44951
54951
64951
74852
84852
94852
104852
114951
124852
134852
144852
154951
164951
174852
184951
194951
204951
214951
224951
234951
245050
255050
265050
275050
285050
295050
304951
314951

Chance of precipitation in January

Any precipitationSnow

Brockton gets around 3.6 in of rain and snow over 9.7 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 33% on the wettest days, and about 5 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13314
23315
33315
43316
53316
63317
73317
83317
93318
103318
113318
123318
133318
143318
153318
163218
173218
183218
193118
203117
213017
223017
233017
242917
252917
262917
272916
282916
292916
302916
312917

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 9 mph in January.

Across January, daily wind ranges from about 9 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 hours 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 42 minutes over January. Sunrise moves from 7:18 AM to 7:06 AM, and sunset from 4:17 PM to 4:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:184:17
29.07:184:17
39.07:184:18
49.07:184:19
59.07:184:20
69.07:184:21
79.17:184:22
89.17:184:23
99.17:184:24
109.17:184:25
119.17:174:26
129.27:174:27
139.27:174:28
149.27:174:29
159.27:164:30
169.37:164:31
179.37:154:32
189.37:154:33
199.37:144:34
209.47:144:35
219.47:134:37
229.47:134:38
239.47:124:39
249.57:124:40
259.57:114:41
269.57:104:43
279.67:094:44
289.67:094:45
299.67:084:46
309.77:074:47
319.77:064:49

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.99 kWh/m².

For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 6.02 kWh/m² in July across the year — January's 1.99 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
172.0Dim
182.0Moderate
192.0Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in January

Hazard calendar for Brockton

In seasonPeak

None of Brockton's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Brockton sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Brockton?

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 Brockton.

What to pack for Brockton in January

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

In January, Brockton sees daytime highs around 37°F and nights near 24°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Brockton in January

The nearest coast averages about 41°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 mi away) is warmest in August at about 66°F and coldest in February near 38°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan41Bracing
Feb38Bracing
Mar38Bracing
Apr42Bracing
May50Bracing
Jun58Bracing
Jul65Cool
Aug66Cool
Sep63Cool
Oct57Bracing
Nov51Bracing
Dec46Bracing

UV index in Brockton 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 Brockton peaks around July 10 at about 8 (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 highHighHighModerateLowJul 10UV 8Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun7Very high
Jul8Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Brockton 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 Brockton is worst in July — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1516 µg/m³Nov 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar14Moderate
Apr14Moderate
May15Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep12Good
Oct10Good
Nov8Good
Dec10Good
Location & terrain

Where is Brockton?

Brockton sits at 42.1°N, 71.0°W, 115 ft above sea level, in United States. The nearest listed city is Abington, 3.7 mi away.

Topography around Brockton

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

Within 2 miles, the terrain around Brockton has only modest variations in elevation — a maximum elevation change of 190 ft around an average of 144 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 509 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,598 ft.

The land around Brockton is covered by trees (51%) and artificial surfaces (37%) within 2 miles, trees (79%) within 10 miles, and trees (54%) and water (36%) within 50 miles.

2 miles
190 ft
10 miles
509 ft
50 miles
1,598 ft
treesgrasslandartificial surfaceswaterwetland
January weather nearby: Abington 3.7 mi · Stoughton 5.0 mi · Randolph 5.6 mi · Rockland 6.2 mi · Easton 6.8 mi · Canton 8.1 mi · Braintree 8.1 mi · Weymouth 11 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 Brockton (42.0834°, -71.0184°, elevation 115 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).