Westchester County Airport weather in December: Westchester County Airport, New York: normal highs, lows, rain and records for December
Westchester County Airport in December has a normal high of 42°F and a normal low of 28°F, a daily mean of 35°F, falling from 47°F on the 1st to 39°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 4.18 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 6°C and low of −2°C, 106 mm of precipitation in December.
- NOAA stationWestchester County Airport
- Station IDUSW00094745
- Location41.07°N 73.71°W
- Elevation379 ft (116 m)
- Jan 37° 22°
- Feb 40° 24°
- Mar 48° 31°
- Apr 59° 40°
- May 69° 50°
- Jun 78° 59°
- Jul 83° 65°
- Aug 81° 64°
- Sep 74° 57°
- Oct 63° 46°
- Nov 52° 36°
- Dec 42° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Westchester County Airport in December?
The normal high is 42°F and the normal low 28°F, for a daily mean of 35.1°F. December is 9.1°F cooler than November and 5.3°F warmer than January. December is the 10th warmest month of the year in Westchester County Airport and the 6th wettest. Across the month the normal high falls 8°F, from 47°F on December 1 to 39°F on December 31. From one year to the next December's mean temperature typically moves about 3.8°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 31°F and 39°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 47°F | 32°F | 36% | 22% |
| December 8 | 45°F | 30°F | 36% | 23% |
| December 15 | 42°F | 28°F | 36% | 23% |
| December 22 | 41°F | 27°F | 35% | 22% |
| December 31 | 39°F | 25°F | 33% | 21% |
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 | 47°F | 32°F | 36% | 22% | 9 h 30 min |
| December 2 | 46°F | 32°F | 36% | 22% | 9 h 30 min |
| December 3 | 46°F | 31°F | 36% | 23% | 9 h 30 min |
| December 4 | 46°F | 31°F | 36% | 23% | 9 h 20 min |
| December 5 | 45°F | 31°F | 36% | 23% | 9 h 20 min |
| December 6 | 45°F | 31°F | 36% | 23% | 9 h 20 min |
| December 7 | 45°F | 30°F | 36% | 23% | 9 h 20 min |
| December 8 | 45°F | 30°F | 36% | 23% | 9 h 20 min |
| December 9 | 44°F | 30°F | 36% | 23% | 9 h 20 min |
| December 10 | 44°F | 29°F | 36% | 23% | 9 h 20 min |
| December 11 | 44°F | 29°F | 36% | 23% | 9 h 20 min |
| December 12 | 43°F | 29°F | 36% | 23% | 9 h 20 min |
| December 13 | 43°F | 29°F | 36% | 23% | 9 h 20 min |
| December 14 | 43°F | 28°F | 36% | 23% | 9 h 20 min |
| December 15 | 42°F | 28°F | 36% | 23% | 9 h 10 min |
| December 16 | 42°F | 28°F | 35% | 23% | 9 h 10 min |
| December 17 | 42°F | 28°F | 35% | 23% | 9 h 10 min |
| December 18 | 42°F | 27°F | 35% | 23% | 9 h 10 min |
| December 19 | 41°F | 27°F | 35% | 23% | 9 h 10 min |
| December 20 | 41°F | 27°F | 35% | 22% | 9 h 10 min |
| December 21 | 41°F | 27°F | 35% | 22% | 9 h 10 min |
| December 22 | 41°F | 27°F | 35% | 22% | 9 h 10 min |
| December 23 | 40°F | 26°F | 35% | 22% | 9 h 10 min |
| December 24 | 40°F | 26°F | 34% | 22% | 9 h 10 min |
| December 25 | 40°F | 26°F | 34% | 22% | 9 h 10 min |
| December 26 | 40°F | 26°F | 34% | 22% | 9 h 10 min |
| December 27 | 39°F | 25°F | 34% | 22% | 9 h 10 min |
| December 28 | 39°F | 25°F | 34% | 22% | 9 h 10 min |
| December 29 | 39°F | 25°F | 34% | 22% | 9 h 10 min |
| December 30 | 39°F | 25°F | 34% | 22% | 9 h 10 min |
| December 31 | 39°F | 25°F | 33% | 21% | 9 h 20 min |
- Normal high
- 42°FDecember average
- Normal low
- 28°FDecember average
- Precipitation
- 4.18 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 22
- Daylight
- 9 h 30 min to 9 h 20 minDecember 1 to December 31
- Sunshine
- 65%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094745; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Westchester County Airport in December?
On a given December day the chance of 0.01 inch or more is 35% on average, highest around December 6 (36%). In all, 4.18 in falls on 11 days of a normal December, 1 of them with an inch or more.
In a normal December in Westchester County Airport, 22 nights fall to freezing and 5 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094745.
How humid and windy is Westchester County Airport in December?
At 3 p.m. the normal temperature is 37°F with 54% relative humidity and a dew point of 22°F; at 6 a.m. it is 30°F with 72% humidity. The wind averages 8.8 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 30°F | 22°F | 72% | 7.9 mph | – |
| 9 a.m. | 32°F | 23°F | 68% | 8.8 mph | – |
| noon | 36°F | 23°F | 58% | 10.6 mph | – |
| 3 p.m. | 37°F | 22°F | 54% | 10.3 mph | – |
| 6 p.m. | 34°F | 22°F | 62% | 8.5 mph | – |
| 9 p.m. | 32°F | 22°F | 66% | 8.3 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094745. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Westchester County Airport?
The warmest December temperature on this station's record (since 1948) is 75°F, on December 7, 1998; the coldest is −5°F, on December 25, 1980. The wettest December brought 10.09 in (1983); the snowiest, 21.3 inches (1960).
The December mean against the 1991-2020 normal of 35.1°F: 2021 39.8°F (+4.7), 2022 35.0°F (−0.1), 2023 40.7°F (+5.6), 2024 34.8°F (−0.3), 2025 31.1°F (−4.1). 2 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 39.8°F | +4.7°F | 1.11 in |
| 2022 | 35.0°F | −0.1°F | 3.83 in |
| 2023 | 40.7°F | +5.6°F | 6.97 in |
| 2024 | 34.8°F | −0.3°F | 4.13 in |
| 2025 | 31.1°F | −4.1°F | 0.68 in |
Source: records: ACIS, station USW00094745; recent months: ACIS, station USW00094745. Records and recent months use complete months only.
How does December in Westchester County Airport 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; Westchester County Airport's is 42°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Westchester County Airport in November52°F by day, 36°F at night
- Westchester County Airport in January37°F by day, 22°F at night
- Westchester County Airport through the yearEvery month, frost dates, records and recent years
- New York in DecemberThe statewide normal and the warmest and coolest places
- Wantagh: New York's warmest Decembernormal high 47°F