Jamestown weather in December

In December, Jamestown sees average daytime highs of 35°F and overnight lows near 23°F, with 3.9 in of precipitation across 15.5 wet days and about 9 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 39°F in the first days to 33°F by the end. The sky is clear or mostly clear about 7% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of December to 9 hours by month's end. Set against the rest of the year, December is Jamestown's 11th-clearest and 2nd-windiest month. For the whole year in context, see Jamestown's year-round climate.

Daytime high
35°
10th warmest
Overnight low
23°
3rd coldest
Precipitation
3.9 in
15.5 wet days
Daylight
8 h 54 min
7:45 AM – 4:41 PM
Cloud cover
83%
11th clearest
Wind
8 mph
2nd windiest
Solar energy
1.31 kWh/m²
Travel score
0.0
out of 10

Jamestown is city in Chautauqua County, New York, United States.

Density
1,281/km²
people per km²
Founded
1810

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 39°F in the first days to 33°F by the end.

A typical December day in Jamestown reaches about 35°F in the afternoon and slips back to 23°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 22°F and 49°F. Set against its neighbours, December runs about 10°F cooler than November and about 5°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
13927
23927
33927
43826
53826
63726
73725
83725
93624
103624
113624
123624
133523
143523
153523
163523
173523
183422
193422
203422
213422
223422
233422
243322
253321
263321
273321
283321
293321
303320
313320

How December really feels in Jamestown

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
18 feel bitter (≤ 14°F)

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

Jamestown weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan31° / 17°3.715.313.99.30.0
Feb33° / 18°2.91210.410.30.0
Mar42° / 25°3.713.67.711.70.5
Apr55° / 37°4.614.13.313.13.2
May65° / 47°4.714.80.114.45.2
Jun73° / 56°5.014.40156.0
Jul77° / 60°4.514.4014.86.2
Aug75° / 58°4.313.2013.76.5
Sep69° / 51°3.811012.36.2
Oct57° / 41°4.113.61.110.83.8
Nov45° / 32°3.813.96.79.61.0
Dec35° / 23°3.915.512.590.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31585
41585
51684
61684
71684
81684
91684
101684
111684
121684
131684
141684
151684
161684
171684
181585
191585
201585
211585
221486
231387
241387
251387
261387
271387
281387
291288
301288
311288

Chance of precipitation in December

Any precipitationSnow

Jamestown gets around 3.9 in of rain and snow over 15.5 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 51% and peaks near 53% on the wettest days, and about 13 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
15334
25335
35336
45336
55237
65238
75238
85239
95239
105240
115140
125140
135141
145141
155141
165141
175141
185041
195041
205041
214941
224941
234941
244841
254841
264841
274841
284942
294942
304942
314942

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 8 mph in December.

Across December, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 12 min at the start of December to 9 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:32 AM to 7:51 AM, and sunset from 4:41 PM to 4:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.27:324:41
29.17:334:41
39.17:344:41
49.17:354:41
59.17:364:41
69.17:374:41
79.07:384:40
89.07:394:40
99.07:394:40
109.07:404:40
119.07:414:41
129.07:424:41
139.07:434:41
149.07:434:41
159.07:444:41
168.97:454:41
178.97:454:42
188.97:464:42
198.97:474:42
208.97:474:43
218.97:484:43
228.97:484:44
238.97:494:44
248.97:494:45
258.97:494:45
268.97:504:46
278.97:504:46
288.97:504:47
299.07:514:48
309.07:514:48
319.07:514:49

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.31 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.31 kWh/m² to a high of 6.11 kWh/m² in June across the year — December's 1.31 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.4Dim
41.4Dim
51.4Dim
61.4Dim
71.4Dim
81.3Dim
91.3Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.3Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.3Dim
231.3Dim
241.3Dim
251.3Dim
261.3Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in December

Is December a good time to visit Jamestown?

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

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Jamestown.

What to pack for Jamestown in December

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

In December, Jamestown sees daytime highs around 35°F and nights near 23°F. Pack a warm layer, a heavy coat and rain gear. About 16 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Jamestown in December

The nearest coast averages about 44°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 28 mi away) is warmest in August at about 73°F and coldest in February near 34°F.

It's comfortable for a long swim from Jul 6 to Sep 21 — about 2.6 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan37Bracing
Feb34Bracing
Mar34Bracing
Apr38Bracing
May48Bracing
Jun62Cool
Jul71Refreshing
Aug73Refreshing
Sep70Refreshing
Oct60Cool
Nov51Bracing
Dec44Bracing

UV index in Jamestown in December

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Jamestown peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Jamestown?

Jamestown sits at 42.1°N, 79.2°W, 1,378 ft above sea level, in United States. The nearest listed city is Erie, 43 mi away.

Topography around Jamestown

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

Within 2 miles, the terrain around Jamestown has only modest variations in elevation — a maximum elevation change of 390 ft around an average of 1,437 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,030 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,900 ft.

The land around Jamestown is covered by trees (58%), grassland (21%) and artificial surfaces (20%) within 2 miles, trees (68%) and grassland (23%) within 10 miles, and trees (68%) within 50 miles.

2 miles
390 ft
10 miles
1,030 ft
50 miles
1,900 ft
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Erie 43 mi · Lackawanna 55 mi · Port Colborne 55 mi · West Seneca 57 mi · Buffalo 58 mi · Fort Erie 58 mi · Cheektowaga 61 mi · Welland 62 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 Jamestown (42.097°, -79.2353°, elevation 1,378 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. 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).