Roslindale weather in December

In December, Roslindale sees average daytime highs of 41°F and overnight lows near 30°F, with 4.5 in of precipitation across 10.8 wet days and about 9 hours of daylight. It is the 10th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 45°F in the first days to 39°F by the end. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of December to 8 h 54 min by month's end. Set against the rest of the year, December is Roslindale's 8th-clearest and 2nd-windiest month. For the whole year in context, see Roslindale's year-round climate.

Daytime high
41°
10th warmest
Overnight low
30°
3rd coldest
Precipitation
4.5 in
10.8 wet days
Daylight
8 h 54 min
7:13 AM – 4:08 PM
Cloud cover
60%
8th clearest
Wind
10 mph
2nd windiest
Solar energy
1.6 kWh/m²
Travel score
0.3
out of 10

Roslindale is neighborhood in Boston, Massachusetts.

Founded
1873

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 45°F in the first days to 39°F by the end.

A typical December day in Roslindale reaches about 41°F in the afternoon and slips back to 30°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 31°F and 53°F. Set against its neighbours, December runs about 9°F cooler than November and about 5°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14634
24533
34533
44433
54432
64432
74332
84331
94331
104231
114231
124230
134230
144130
154130
164129
174129
184129
194029
204029
214029
224028
234028
244028
254028
263928
273927
283927
293927
303927
313827

How December really feels in Roslindale

Once humidity and wind are folded in, December 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 December is cold — wind chill drags the overnight "feels like" below the raw low.

Roslindale weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 24°3.7105.69.30.0
Feb38° / 25°3.38.85.110.30.0
Mar44° / 31°4.611.14.611.60.8
Apr54° / 41°3.911113.13.2
May64° / 50°3.210.6014.45.5
Jun73° / 59°3.410.10156.6
Jul79° / 65°2.99.6014.86.7
Aug78° / 65°3.49.2013.77.0
Sep71° / 58°3.58.2012.36.9
Oct61° / 48°4.39.80.110.85.1
Nov50° / 38°3.79.60.89.62.4
Dec41° / 30°4.510.84.390.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54753
64654
74654
84555
94555
104555
114456
124357
134456
144456
154456
164258
174357
184357
194357
204555
214555
224654
234753
244753
254753
264852
274852
284852
294852
304951
315050

Chance of precipitation in December

Any precipitationSnow

Roslindale gets around 4.5 in of rain and snow over 10.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 35% and peaks near 36% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1329
23210
33211
43211
53312
63312
73413
83413
93514
103514
113614
123614
133614
143614
153614
163614
173614
183614
193613
203614
213614
223514
233514
243514
253514
263514
273514
283514
293514
303515
313515

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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 December

Winds average 10 mph in December.

Across December, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 06 min at the start of December to 8 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:00 AM to 7:19 AM, and sunset from 4:08 PM to 4:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.17:004:08
29.17:014:08
39.17:024:08
49.17:034:08
59.17:044:08
69.07:054:07
79.07:064:07
89.07:074:07
99.07:084:07
109.07:094:07
119.07:094:07
129.07:104:08
138.97:114:08
148.97:124:08
158.97:124:08
168.97:134:08
178.97:144:09
188.97:144:09
198.97:154:09
208.97:154:10
218.97:164:10
228.97:164:11
238.97:174:11
248.97:174:12
258.97:184:12
268.97:184:13
278.97:184:13
288.97:194:14
298.97:194:15
308.97:194:15
318.97:194:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.6 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 5.95 kWh/m² in July across the year — December's 1.6 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.7Dim
41.7Dim
51.7Dim
61.6Dim
71.6Dim
81.6Dim
91.6Dim
101.6Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.6Dim
161.6Dim
171.6Dim
181.6Dim
191.6Dim
201.6Dim
211.6Dim
221.6Dim
231.6Dim
241.6Dim
251.6Dim
261.6Dim
271.6Dim
281.6Dim
291.6Dim
301.7Dim
311.7Dim
Planning a trip in December

Hazard calendar for Roslindale

In seasonPeak

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

Roslindale 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 December a good time to visit Roslindale?

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

0.3
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Roslindale.

What to pack for Roslindale in December

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

In December, Roslindale sees daytime highs around 41°F and nights near 30°F. Pack a warm layer. Worth having: a heavy coat and rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Roslindale in December

The nearest coast averages about 46°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 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
Oct56Bracing
Nov50Bracing
Dec46Bracing

UV index in Roslindale in December

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Roslindale peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 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 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun7Very high
Jul7Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Roslindale in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Roslindale 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 Roslindale?

Roslindale sits at 42.3°N, 71.1°W, 46 ft above sea level, in United States. The nearest listed city is Jamaica Plain, 1.2 mi away.

Topography around Roslindale

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

Within 2 miles, the terrain around Roslindale has only modest variations in elevation — a maximum elevation change of 331 ft around an average of 138 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 633 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,165 ft.

The land around Roslindale is covered by trees (56%) and artificial surfaces (33%) within 2 miles, trees (53%) and artificial surfaces (28%) within 10 miles, and trees (62%) and water (28%) within 50 miles.

2 miles
331 ft
10 miles
633 ft
50 miles
2,165 ft
treesgrasslandartificial surfaceswaterwetland
December weather nearby: Jamaica Plain 1.2 mi · West Roxbury 1.2 mi · Mattapan 2.5 mi · Hyde Park 2.5 mi · Dorchester 2.5 mi · Brookline 3.1 mi · Ashmont 3.1 mi · Mission Hill 3.1 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 Roslindale (42.2912°, -71.1245°, elevation 46 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).