Anchorage weather in December: Anchorage, Alaska: normal highs, lows, rain and records for December
Anchorage in December has a normal high of 25°F and a normal low of 14°F, a daily mean of 19°F, falling from 26°F on the 1st to 23°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 1.16 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of −4°C and low of −10°C, 29 mm of precipitation and 46 cm of snow in December.
- NOAA stationAnchorage Ted Stevens International Airport
- Station IDUSW00026451
- Location61.17°N 150.03°W
- Elevation120 ft (37 m)
- Population289,600
- Jan 23° 11°
- Feb 27° 15°
- Mar 33° 19°
- Apr 45° 30°
- May 56° 40°
- Jun 63° 48°
- Jul 66° 53°
- Aug 64° 51°
- Sep 56° 43°
- Oct 42° 31°
- Nov 29° 18°
- Dec 25° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Anchorage in December?
The normal high is 25°F and the normal low 14°F, for a daily mean of 19.4°F. December is 4.2°F cooler than November and 2.5°F warmer than January. December is the 11th warmest month of the year in Anchorage and the 6th wettest, and the snowiest. Across the month the normal high falls 3°F, from 26°F on December 1 to 23°F on December 31. From one year to the next December's mean temperature typically moves about 4.9°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 14°F and 24°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 26°F | 16°F | 35% | 13% |
| December 8 | 26°F | 15°F | 35% | 13% |
| December 15 | 25°F | 14°F | 34% | 13% |
| December 22 | 24°F | 13°F | 32% | 12% |
| December 31 | 23°F | 11°F | 29% | 10% |
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 | 26°F | 16°F | 35% | 13% | 6 h 10 min |
| December 2 | 26°F | 16°F | 35% | 13% | 6 h 10 min |
| December 3 | 26°F | 16°F | 35% | 13% | 6 h |
| December 4 | 26°F | 16°F | 35% | 13% | 6 h |
| December 5 | 26°F | 15°F | 35% | 13% | 6 h |
| December 6 | 26°F | 15°F | 35% | 13% | 5 h 50 min |
| December 7 | 26°F | 15°F | 35% | 13% | 5 h 50 min |
| December 8 | 26°F | 15°F | 35% | 13% | 5 h 50 min |
| December 9 | 26°F | 15°F | 35% | 13% | 5 h 50 min |
| December 10 | 26°F | 15°F | 35% | 13% | 5 h 40 min |
| December 11 | 26°F | 15°F | 35% | 13% | 5 h 40 min |
| December 12 | 26°F | 15°F | 35% | 13% | 5 h 40 min |
| December 13 | 26°F | 15°F | 34% | 13% | 5 h 40 min |
| December 14 | 25°F | 14°F | 34% | 13% | 5 h 40 min |
| December 15 | 25°F | 14°F | 34% | 13% | 5 h 30 min |
| December 16 | 25°F | 14°F | 34% | 13% | 5 h 30 min |
| December 17 | 25°F | 14°F | 34% | 13% | 5 h 30 min |
| December 18 | 25°F | 14°F | 33% | 13% | 5 h 30 min |
| December 19 | 25°F | 14°F | 33% | 12% | 5 h 30 min |
| December 20 | 25°F | 13°F | 33% | 12% | 5 h 30 min |
| December 21 | 25°F | 13°F | 32% | 12% | 5 h 30 min |
| December 22 | 24°F | 13°F | 32% | 12% | 5 h 30 min |
| December 23 | 24°F | 13°F | 32% | 12% | 5 h 30 min |
| December 24 | 24°F | 13°F | 31% | 12% | 5 h 30 min |
| December 25 | 24°F | 12°F | 31% | 12% | 5 h 30 min |
| December 26 | 24°F | 12°F | 31% | 11% | 5 h 30 min |
| December 27 | 24°F | 12°F | 30% | 11% | 5 h 30 min |
| December 28 | 24°F | 12°F | 30% | 11% | 5 h 30 min |
| December 29 | 23°F | 12°F | 30% | 11% | 5 h 30 min |
| December 30 | 23°F | 12°F | 29% | 11% | 5 h 30 min |
| December 31 | 23°F | 11°F | 29% | 10% | 5 h 40 min |
- Normal high
- 25°FDecember average
- Normal low
- 14°FDecember average
- Precipitation
- 1.16 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 18.2 inmonth total
- Nights at 32°F or colder
- 31
- Daylight
- 6 h 10 min to 5 h 40 minDecember 1 to December 31
- Sunshine
- 56%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00026451; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Anchorage in December?
On a given December day the chance of 0.01 inch or more is 33% on average, highest around December 2 (35%). In all, 1.16 in falls on 11 days of a normal December.
In a normal December in Anchorage, 31 nights fall to freezing, 24 days stay below freezing all day and snowfall averages 18.2 inches.
Snow falls on 11 days in a normal December, and an inch or more covers the ground on 28 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00026451.
How humid and windy is Anchorage in December?
At 3 p.m. the normal temperature is 20°F with 77% relative humidity and a dew point of 13°F; at 6 a.m. it is 17°F with 79% humidity. The wind averages 5.7 mph, most often from the north-northeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 17°F | 12°F | 79% | 5.6 mph | 22% |
| 9 a.m. | 18°F | 12°F | 79% | 5.7 mph | 14% |
| noon | 19°F | 13°F | 78% | 5.9 mph | – |
| 3 p.m. | 20°F | 13°F | 77% | 6.1 mph | 11% |
| 6 p.m. | 18°F | 12°F | 78% | 5.8 mph | – |
| 9 p.m. | 18°F | 12°F | 77% | 5.7 mph | 18% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00026451. 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 Anchorage?
The warmest December temperature on Anchorage's official record (since 1953) is 51°F, on December 9, 2019; the coldest is −30°F, on December 28, 1961. The wettest December brought 3.82 in (2022); the snowiest, 41.6 inches (1955).
The December mean against the 1991-2020 normal of 19.4°F: 2021 17.1°F (−2.3), 2022 14.6°F (−4.8), 2023 16.7°F (−2.7), 2024 25.7°F (+6.3), 2025 13.5°F (−5.9). 1 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 17.1°F | −2.3°F | 1.06 in |
| 2022 | 14.6°F | −4.8°F | 3.82 in |
| 2023 | 16.7°F | −2.7°F | 2.07 in |
| 2024 | 25.7°F | +6.3°F | 0.49 in |
| 2025 | 13.5°F | −5.9°F | 0.50 in |
Source: records: ACIS, NWS threaded record ANCthr; recent months: ACIS, station USW00026451. Records and recent months use complete months only.
How does December in Anchorage compare across Alaska?
Across the 85 places PlainClimate covers in Alaska, December normal highs run from −7°F in Chicken to 42°F in Sitka; Anchorage's is 25°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.