Kalispell weather in December: Kalispell, Montana: normal highs, lows, rain and records for December
Kalispell in December has a normal high of 31°F and a normal low of 17°F, a daily mean of 24°F, falling from 34°F on the 1st to 30°F by the 31st. Measurable precipitation falls on 14 days in a normal December, 1.50 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of −1°C and low of −8°C, 38 mm of precipitation and 40 cm of snow in December.
- NOAA stationKalispell Glacier Airport
- Station IDUSC00244558
- Location48.30°N 114.26°W
- Elevation2,957 ft (901 m)
- Population31,296
- Jan 31° 16°
- Feb 36° 18°
- Mar 45° 24°
- Apr 55° 31°
- May 65° 38°
- Jun 71° 44°
- Jul 82° 48°
- Aug 82° 46°
- Sep 70° 38°
- Oct 54° 29°
- Nov 39° 24°
- Dec 31° 17°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Kalispell in December?
The normal high is 31°F and the normal low 17°F, for a daily mean of 24.1°F. December is 7.3°F cooler than November and 0.4°F warmer than January. December is the 11th warmest month of the year in Kalispell and the 3rd wettest, and the snowiest. Across the month the normal high falls 4°F, from 34°F on December 1 to 30°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 20°F and 28°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 49%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 34°F | 21°F | 44% | 15% |
| December 8 | 32°F | 19°F | 45% | 15% |
| December 15 | 31°F | 17°F | 46% | 16% |
| December 22 | 30°F | 16°F | 48% | 17% |
| December 31 | 30°F | 15°F | 49% | 19% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 29)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 34°F | 21°F | 44% | 15% | 8 h 40 min |
| December 2 | 34°F | 20°F | 44% | 15% | 8 h 40 min |
| December 3 | 34°F | 20°F | 44% | 15% | 8 h 40 min |
| December 4 | 33°F | 20°F | 44% | 15% | 8 h 30 min |
| December 5 | 33°F | 20°F | 44% | 15% | 8 h 30 min |
| December 6 | 33°F | 19°F | 45% | 15% | 8 h 30 min |
| December 7 | 32°F | 19°F | 45% | 15% | 8 h 30 min |
| December 8 | 32°F | 19°F | 45% | 15% | 8 h 30 min |
| December 9 | 32°F | 18°F | 45% | 16% | 8 h 30 min |
| December 10 | 32°F | 18°F | 45% | 16% | 8 h 30 min |
| December 11 | 32°F | 18°F | 46% | 16% | 8 h 30 min |
| December 12 | 31°F | 18°F | 46% | 16% | 8 h 20 min |
| December 13 | 31°F | 18°F | 46% | 16% | 8 h 20 min |
| December 14 | 31°F | 17°F | 46% | 16% | 8 h 20 min |
| December 15 | 31°F | 17°F | 46% | 16% | 8 h 20 min |
| December 16 | 31°F | 17°F | 47% | 16% | 8 h 20 min |
| December 17 | 30°F | 17°F | 47% | 17% | 8 h 20 min |
| December 18 | 30°F | 16°F | 47% | 17% | 8 h 20 min |
| December 19 | 30°F | 16°F | 47% | 17% | 8 h 20 min |
| December 20 | 30°F | 16°F | 47% | 17% | 8 h 20 min |
| December 21 | 30°F | 16°F | 47% | 17% | 8 h 20 min |
| December 22 | 30°F | 16°F | 48% | 17% | 8 h 20 min |
| December 23 | 30°F | 16°F | 48% | 18% | 8 h 20 min |
| December 24 | 30°F | 16°F | 48% | 18% | 8 h 20 min |
| December 25 | 30°F | 16°F | 48% | 18% | 8 h 20 min |
| December 26 | 30°F | 15°F | 48% | 18% | 8 h 20 min |
| December 27 | 30°F | 15°F | 48% | 18% | 8 h 20 min |
| December 28 | 30°F | 15°F | 49% | 19% | 8 h 20 min |
| December 29 | 30°F | 15°F | 49% | 19% | 8 h 20 min |
| December 30 | 30°F | 15°F | 49% | 19% | 8 h 20 min |
| December 31 | 30°F | 15°F | 49% | 19% | 8 h 20 min |
- Normal high
- 31°FDecember average
- Normal low
- 17°FDecember average
- Precipitation
- 1.50 inmonth total
- Days with precipitation
- 140.01 inch or more
- Snowfall
- 15.9 inmonth total
- Nights at 32°F or colder
- 30
- Daylight
- 8 h 40 min to 8 h 20 minDecember 1 to December 31
- Sunshine
- 50%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00244558; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Kalispell in December?
On a given December day the chance of 0.01 inch or more is 46% on average, highest around December 31 (49%). In all, 1.50 in falls on 14 days of a normal December.
In a normal December in Kalispell, 30 nights fall to freezing, 16 days stay below freezing all day and snowfall averages 15.9 inches.
Snow falls on 11 days in a normal December, and an inch or more covers the ground on 17 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00244558.
How humid and windy is Kalispell in December?
At 3 p.m. the normal temperature is 27°F with 75% relative humidity and a dew point of 20°F; at 6 a.m. it is 21°F with 84% humidity. The wind averages 4.0 mph, most often from the south-southeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 21°F | 17°F | 84% | 3.6 mph | – |
| 9 a.m. | 21°F | 17°F | 85% | 3.8 mph | – |
| noon | 25°F | 19°F | 79% | 4.5 mph | – |
| 3 p.m. | 27°F | 20°F | 75% | 4.6 mph | – |
| 6 p.m. | 24°F | 19°F | 81% | 3.9 mph | – |
| 9 p.m. | 22°F | 18°F | 83% | 3.9 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USC00244558. 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 Kalispell?
The warmest December temperature on Kalispell's official record (since 1899) is 62°F, on December 1, 2021; the coldest is −35°F, on December 30, 1968. The wettest December brought 4.78 in (1917); the snowiest, 52.1 inches (1990).
The December mean against the 1991-2020 normal of 24.1°F: 2021 22.6°F (−1.5), 2022 17.3°F (−6.8), 2023 29.4°F (+5.3), 2024 31.3°F (+7.2), 2025 32.2°F (+8.1). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 22.6°F | −1.5°F | 1.67 in |
| 2022 | 17.3°F | −6.8°F | 2.04 in |
| 2023 | 29.4°F | +5.3°F | 0.79 in |
| 2024 | 31.3°F | +7.2°F | 0.99 in |
| 2025 | 32.2°F | +8.1°F | 3.55 in |
Source: records: ACIS, NWS threaded record FCAthr; recent months: ACIS, station USC00244558. Records and recent months use complete months only.
How does December in Kalispell compare across Montana?
Across the 141 places PlainClimate covers in Montana, December normal highs run from 22°F in Cooke City to 39°F in Geraldine; Kalispell's is 31°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.