Salt Lake City weather in December: Salt Lake City, Utah: normal highs, lows, rain and records for December
Salt Lake City in December has a normal high of 39°F and a normal low of 25°F, a daily mean of 32°F, falling from 43°F on the 1st to 37°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 1.40 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 4°C and low of −4°C, 36 mm of precipitation and 31 cm of snow in December.
- NOAA stationSalt Lake City International Airport
- Station IDUSW00024127
- Location40.78°N 111.97°W
- Elevation4,225 ft (1,288 m)
- From the center2 miles
- Population217,783
- Jan 39° 24°
- Feb 45° 29°
- Mar 55° 36°
- Apr 62° 42°
- May 73° 50°
- Jun 84° 59°
- Jul 94° 68°
- Aug 92° 67°
- Sep 81° 56°
- Oct 66° 44°
- Nov 51° 33°
- Dec 39° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Salt Lake City in December?
The normal high is 39°F and the normal low 25°F, for a daily mean of 32.2°F. December is 9.5°F cooler than November and 0.8°F warmer than January. December is the 11th warmest month of the year in Salt Lake City and the 5th wettest. Across the month the normal high falls 6°F, from 43°F on December 1 to 37°F on December 31. From one year to the next December's mean temperature typically moves about 3.4°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 29°F and 36°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 43°F | 28°F | 29% | 14% |
| December 8 | 40°F | 26°F | 30% | 14% |
| December 15 | 39°F | 25°F | 31% | 15% |
| December 22 | 38°F | 24°F | 32% | 15% |
| December 31 | 37°F | 24°F | 33% | 15% |
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 | 43°F | 28°F | 29% | 14% | 9 h 30 min |
| December 2 | 43°F | 28°F | 29% | 14% | 9 h 30 min |
| December 3 | 42°F | 28°F | 29% | 14% | 9 h 30 min |
| December 4 | 42°F | 27°F | 29% | 14% | 9 h 30 min |
| December 5 | 41°F | 27°F | 30% | 14% | 9 h 20 min |
| December 6 | 41°F | 27°F | 30% | 14% | 9 h 20 min |
| December 7 | 41°F | 27°F | 30% | 14% | 9 h 20 min |
| December 8 | 40°F | 26°F | 30% | 14% | 9 h 20 min |
| December 9 | 40°F | 26°F | 30% | 14% | 9 h 20 min |
| December 10 | 40°F | 26°F | 30% | 14% | 9 h 20 min |
| December 11 | 40°F | 26°F | 30% | 14% | 9 h 20 min |
| December 12 | 39°F | 26°F | 30% | 14% | 9 h 20 min |
| December 13 | 39°F | 25°F | 31% | 14% | 9 h 20 min |
| December 14 | 39°F | 25°F | 31% | 15% | 9 h 20 min |
| December 15 | 39°F | 25°F | 31% | 15% | 9 h 20 min |
| December 16 | 38°F | 25°F | 31% | 15% | 9 h 20 min |
| December 17 | 38°F | 25°F | 31% | 15% | 9 h 20 min |
| December 18 | 38°F | 25°F | 31% | 15% | 9 h 20 min |
| December 19 | 38°F | 25°F | 32% | 15% | 9 h 20 min |
| December 20 | 38°F | 25°F | 32% | 14% | 9 h 10 min |
| December 21 | 38°F | 24°F | 32% | 14% | 9 h 10 min |
| December 22 | 38°F | 24°F | 32% | 15% | 9 h 10 min |
| December 23 | 38°F | 24°F | 32% | 15% | 9 h 10 min |
| December 24 | 37°F | 24°F | 32% | 15% | 9 h 10 min |
| December 25 | 37°F | 24°F | 32% | 15% | 9 h 10 min |
| December 26 | 37°F | 24°F | 32% | 15% | 9 h 20 min |
| December 27 | 37°F | 24°F | 33% | 14% | 9 h 20 min |
| December 28 | 37°F | 24°F | 33% | 14% | 9 h 20 min |
| December 29 | 37°F | 24°F | 33% | 15% | 9 h 20 min |
| December 30 | 37°F | 24°F | 33% | 15% | 9 h 20 min |
| December 31 | 37°F | 24°F | 33% | 15% | 9 h 20 min |
- Normal high
- 39°FDecember average
- Normal low
- 25°FDecember average
- Precipitation
- 1.40 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 12.1 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 30 min to 9 h 20 minDecember 1 to December 31
- Sunshine
- 67%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024127; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Salt Lake City in December?
On a given December day the chance of 0.01 inch or more is 31% on average, highest around December 31 (33%). In all, 1.40 in falls on 10 days of a normal December.
In a normal December in Salt Lake City, 27 nights fall to freezing, 8 days stay below freezing all day and snowfall averages 12.1 inches.
Snow falls on 7 days in a normal December, and an inch or more covers the ground on 13 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024127.
How humid and windy is Salt Lake City in December?
At 3 p.m. the normal temperature is 34°F with 63% relative humidity and a dew point of 23°F; at 6 a.m. it is 25°F with 80% humidity. The wind averages 6.5 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. | 25°F | 20°F | 80% | 6.5 mph | 29% |
| 9 a.m. | 26°F | 21°F | 79% | 6.4 mph | 19% |
| noon | 32°F | 22°F | 67% | 6.7 mph | 21% |
| 3 p.m. | 34°F | 23°F | 63% | 7.6 mph | 16% |
| 6 p.m. | 29°F | 22°F | 75% | 6.5 mph | 22% |
| 9 p.m. | 28°F | 22°F | 78% | 5.7 mph | 29% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024127. 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 Salt Lake City?
The warmest December temperature on Salt Lake City's official record (since 1874) is 69°F, on December 1, 1995; the coldest is −21°F, on December 13, 1932. The wettest December brought 4.37 in (1889); the snowiest, 35.2 inches (1972).
The December mean against the 1991-2020 normal of 32.2°F: 2021 34.8°F (+2.6), 2022 33.0°F (+0.8), 2023 36.5°F (+4.3), 2024 37.5°F (+5.3), 2025 43.7°F (+11.5). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 34.8°F | +2.6°F | 1.84 in |
| 2022 | 33.0°F | +0.8°F | 2.39 in |
| 2023 | 36.5°F | +4.3°F | 0.94 in |
| 2024 | 37.5°F | +5.3°F | 1.12 in |
| 2025 | 43.7°F | +11.5°F | 0.84 in |
Source: records: ACIS, NWS threaded record SLCthr; recent months: ACIS, station USW00024127. Records and recent months use complete months only.
How does December in Salt Lake City compare across Utah?
Across the 97 places PlainClimate covers in Utah, December normal highs run from 28°F in Brian Head to 53°F in St. George; Salt Lake City's is 39°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Salt Lake City in November51°F by day, 33°F at night
- Salt Lake City in January39°F by day, 24°F at night
- Salt Lake City through the yearEvery month, frost dates, records and recent years
- Utah in DecemberThe statewide normal and the warmest and coolest places
- St. George: Utah's warmest Decembernormal high 53°F