Syracuse weather in December: Syracuse, New York: normal highs, lows, rain and records for December
Syracuse in December has a normal high of 37°F and a normal low of 24°F, a daily mean of 30°F, falling from 42°F on the 1st to 33°F by the 31st. Measurable precipitation falls on 19 days in a normal December, 3.28 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 3°C and low of −5°C, 83 mm of precipitation and 78 cm of snow in December.
- NOAA stationSyracuse Hancock International Airport
- Station IDUSW00014771
- Location43.11°N 76.10°W
- Elevation413 ft (126 m)
- From the center5 miles
- Population146,097
- Jan 32° 17°
- Feb 34° 18°
- Mar 42° 25°
- Apr 56° 36°
- May 69° 47°
- Jun 77° 57°
- Jul 82° 62°
- Aug 80° 60°
- Sep 73° 53°
- Oct 60° 42°
- Nov 48° 33°
- Dec 37° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Syracuse in December?
The normal high is 37°F and the normal low 24°F, for a daily mean of 30.4°F. December is 10.1°F cooler than November and 6.3°F warmer than January. December is the 10th warmest month of the year in Syracuse and the 8th wettest. Across the month the normal high falls 9°F, from 42°F on December 1 to 33°F on December 31. From one year to the next December's mean temperature typically moves about 4.3°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 62%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 42°F | 28°F | 57% | 27% |
| December 8 | 39°F | 26°F | 59% | 27% |
| December 15 | 37°F | 24°F | 60% | 27% |
| December 22 | 35°F | 22°F | 61% | 27% |
| December 31 | 33°F | 20°F | 62% | 26% |
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 | 28°F | 57% | 27% | 9 h 20 min |
| December 2 | 42°F | 28°F | 57% | 27% | 9 h 10 min |
| December 3 | 41°F | 27°F | 58% | 27% | 9 h 10 min |
| December 4 | 41°F | 27°F | 58% | 27% | 9 h 10 min |
| December 5 | 41°F | 27°F | 58% | 27% | 9 h 10 min |
| December 6 | 40°F | 27°F | 58% | 27% | 9 h 10 min |
| December 7 | 40°F | 26°F | 58% | 27% | 9 h 10 min |
| December 8 | 39°F | 26°F | 59% | 27% | 9 h 10 min |
| December 9 | 39°F | 26°F | 59% | 27% | 9 h 10 min |
| December 10 | 39°F | 25°F | 59% | 27% | 9 h |
| December 11 | 38°F | 25°F | 59% | 27% | 9 h |
| December 12 | 38°F | 25°F | 59% | 27% | 9 h |
| December 13 | 38°F | 25°F | 59% | 27% | 9 h |
| December 14 | 37°F | 24°F | 60% | 27% | 9 h |
| December 15 | 37°F | 24°F | 60% | 27% | 9 h |
| December 16 | 37°F | 24°F | 60% | 27% | 9 h |
| December 17 | 37°F | 23°F | 60% | 27% | 9 h |
| December 18 | 36°F | 23°F | 60% | 27% | 9 h |
| December 19 | 36°F | 23°F | 60% | 27% | 9 h |
| December 20 | 36°F | 23°F | 60% | 27% | 9 h |
| December 21 | 35°F | 22°F | 60% | 27% | 9 h |
| December 22 | 35°F | 22°F | 61% | 27% | 9 h |
| December 23 | 35°F | 22°F | 61% | 27% | 9 h |
| December 24 | 35°F | 21°F | 61% | 27% | 9 h |
| December 25 | 35°F | 21°F | 61% | 27% | 9 h |
| December 26 | 34°F | 21°F | 61% | 26% | 9 h |
| December 27 | 34°F | 21°F | 61% | 26% | 9 h |
| December 28 | 34°F | 20°F | 61% | 26% | 9 h |
| December 29 | 34°F | 20°F | 61% | 26% | 9 h |
| December 30 | 34°F | 20°F | 62% | 26% | 9 h |
| December 31 | 33°F | 20°F | 62% | 26% | 9 h |
- Normal high
- 37°FDecember average
- Normal low
- 24°FDecember average
- Precipitation
- 3.28 inmonth total
- Days with precipitation
- 190.01 inch or more
- Snowfall
- 30.6 inmonth total
- Nights at 32°F or colder
- 25
- Daylight
- 9 h 20 min to 9 hDecember 1 to December 31
- Sunshine
- 47%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014771; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Syracuse in December?
On a given December day the chance of 0.01 inch or more is 60% on average, highest around December 31 (62%). In all, 3.28 in falls on 19 days of a normal December.
In a normal December in Syracuse, 25 nights fall to freezing, 10 days stay below freezing all day and snowfall averages 30.6 inches.
Snow falls on 14 days in a normal December, and an inch or more covers the ground on 15 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014771.
How humid and windy is Syracuse in December?
At 3 p.m. the normal temperature is 31°F with 67% relative humidity and a dew point of 21°F; at 6 a.m. it is 26°F with 78% humidity. The wind averages 9.8 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 26°F | 20°F | 78% | 9.2 mph | – |
| 9 a.m. | 26°F | 20°F | 77% | 9.7 mph | – |
| noon | 30°F | 21°F | 69% | 11.3 mph | – |
| 3 p.m. | 31°F | 21°F | 67% | 11.0 mph | – |
| 6 p.m. | 29°F | 21°F | 73% | 9.1 mph | – |
| 9 p.m. | 28°F | 21°F | 76% | 9.5 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014771. 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 Syracuse?
The warmest December temperature on Syracuse's official record (since 1902) is 72°F, on December 6, 2001; the coldest is −26°F, on December 20, 1942. The wettest December brought 7.57 in (2012); the snowiest, 72.8 inches (2010).
The December mean against the 1991-2020 normal of 30.4°F: 2021 38.0°F (+7.6), 2022 32.1°F (+1.7), 2023 38.6°F (+8.3), 2024 32.5°F (+2.1), 2025 26.2°F (−4.2). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 38.0°F | +7.6°F | 3.55 in |
| 2022 | 32.1°F | +1.7°F | 3.25 in |
| 2023 | 38.6°F | +8.3°F | 5.14 in |
| 2024 | 32.5°F | +2.1°F | 3.22 in |
| 2025 | 26.2°F | −4.2°F | 4.80 in |
Source: records: ACIS, NWS threaded record SYRthr; recent months: ACIS, station USW00014771. Records and recent months use complete months only.
How does December in Syracuse 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; Syracuse's is 37°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.