Jamestown weather in December: Jamestown, New York: normal highs, lows, rain and records for December
Jamestown in December has a normal high of 37°F and a normal low of 23°F, a daily mean of 30°F, falling from 42°F on the 1st to 34°F by the 31st. Measurable precipitation falls on 18 days in a normal December, 3.92 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 3°C and low of −5°C, 100 mm of precipitation and 55 cm of snow in December.
- NOAA stationJamestown (4 mi ENE)
- Station IDUSC00304207
- Location42.11°N 79.16°W
- Elevation1,250 ft (381 m)
- From the center4 miles
- Population27,699
- Jan 32° 16°
- Feb 35° 16°
- Mar 44° 23°
- Apr 57° 34°
- May 69° 44°
- Jun 77° 54°
- Jul 80° 57°
- Aug 79° 56°
- Sep 73° 50°
- Oct 61° 39°
- Nov 48° 31°
- Dec 37° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Jamestown in December?
The normal high is 37°F and the normal low 23°F, for a daily mean of 30.2°F. December is 9.1°F cooler than November and 6.0°F warmer than January. December is the 10th warmest month of the year in Jamestown and the 6th wettest. Across the month the normal high falls 8°F, from 42°F on December 1 to 34°F on December 31. From one year to the next December's mean temperature typically moves about 4.4°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 26°F and 35°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 61%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 42°F | 27°F | 54% | 32% |
| December 8 | 39°F | 25°F | 56% | 33% |
| December 15 | 37°F | 24°F | 58% | 33% |
| December 22 | 36°F | 22°F | 59% | 33% |
| December 31 | 34°F | 19°F | 61% | 34% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 42°F | 27°F | 54% | 32% | 9 h 20 min |
| December 2 | 41°F | 27°F | 55% | 32% | 9 h 20 min |
| December 3 | 41°F | 26°F | 55% | 33% | 9 h 20 min |
| December 4 | 41°F | 26°F | 55% | 33% | 9 h 20 min |
| December 5 | 40°F | 26°F | 56% | 33% | 9 h 20 min |
| December 6 | 40°F | 26°F | 56% | 33% | 9 h 20 min |
| December 7 | 40°F | 25°F | 56% | 33% | 9 h 10 min |
| December 8 | 39°F | 25°F | 56% | 33% | 9 h 10 min |
| December 9 | 39°F | 25°F | 57% | 33% | 9 h 10 min |
| December 10 | 39°F | 25°F | 57% | 33% | 9 h 10 min |
| December 11 | 38°F | 25°F | 57% | 33% | 9 h 10 min |
| December 12 | 38°F | 24°F | 57% | 33% | 9 h 10 min |
| December 13 | 38°F | 24°F | 58% | 33% | 9 h 10 min |
| December 14 | 37°F | 24°F | 58% | 33% | 9 h 10 min |
| December 15 | 37°F | 24°F | 58% | 33% | 9 h 10 min |
| December 16 | 37°F | 23°F | 58% | 33% | 9 h 10 min |
| December 17 | 37°F | 23°F | 58% | 33% | 9 h 10 min |
| December 18 | 36°F | 23°F | 58% | 33% | 9 h 10 min |
| December 19 | 36°F | 23°F | 59% | 33% | 9 h 10 min |
| December 20 | 36°F | 22°F | 59% | 33% | 9 h 10 min |
| December 21 | 36°F | 22°F | 59% | 33% | 9 h 10 min |
| December 22 | 36°F | 22°F | 59% | 33% | 9 h 10 min |
| December 23 | 35°F | 22°F | 59% | 33% | 9 h 10 min |
| December 24 | 35°F | 21°F | 60% | 33% | 9 h 10 min |
| December 25 | 35°F | 21°F | 60% | 33% | 9 h 10 min |
| December 26 | 35°F | 21°F | 60% | 34% | 9 h 10 min |
| December 27 | 35°F | 21°F | 60% | 34% | 9 h 10 min |
| December 28 | 34°F | 20°F | 60% | 34% | 9 h 10 min |
| December 29 | 34°F | 20°F | 60% | 34% | 9 h 10 min |
| December 30 | 34°F | 20°F | 61% | 34% | 9 h 10 min |
| December 31 | 34°F | 19°F | 61% | 34% | 9 h 10 min |
- Normal high
- 37°FDecember average
- Normal low
- 23°FDecember average
- Precipitation
- 3.92 inmonth total
- Days with precipitation
- 180.01 inch or more
- Snowfall
- 21.6 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 20 min to 9 h 10 minDecember 1 to December 31
- Sunshine
- 47%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00304207; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Jamestown in December?
On a given December day the chance of 0.01 inch or more is 58% on average, highest around December 31 (61%). In all, 3.92 in falls on 18 days of a normal December.
In a normal December in Jamestown, 27 nights fall to freezing, 11 days stay below freezing all day and snowfall averages 21.6 inches.
Snow falls on 10 days in a normal December, and an inch or more covers the ground on 16 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00304207.
What are the records for December in Jamestown?
The warmest December temperature on Jamestown's official record (since 1895) is 73°F, on December 4, 1982; the coldest is −18°F, on December 25, 1980. The wettest December brought 7.31 in (1990); the snowiest, 67.0 inches (1944).
The December mean against the 1991-2020 normal of 30.2°F: 2021 36.2°F (+6.0), 2022 30.4°F (+0.3), 2023 38.1°F (+7.9), 2024 29.4°F (−0.8), 2025 24.1°F (−6.1). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 36.2°F | +6.0°F | 2.80 in |
| 2022 | 30.4°F | +0.3°F | 2.98 in |
| 2023 | 38.1°F | +7.9°F | 2.93 in |
| 2024 | 29.4°F | −0.8°F | 4.42 in |
| 2025 | 24.1°F | −6.1°F | 4.58 in |
Source: records: ACIS, NWS threaded record JSTN6thr; recent months: ACIS, station USC00304207. Records and recent months use complete months only.
How does December in Jamestown compare across New York?
Across the 131 places PlainClimate covers in New York, December normal highs run from 29°F in Lake Placid to 47°F in Wantagh; Jamestown's is 37°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.