Climate averages 1991–2020
Billings weather
in December.
A cold month with light precipitation: the 11th warmest and the joint 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Billings: daytime highs average 1.8°C and nights cool to about -7.5°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 20 mm of precipitation on roughly 6 days, which makes December a month with light precipitation (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 45 min on an average December day.
The nearest other city in this atlas is Missoula (439 km away). In December its highs average -0.1°C, 1.9°C cooler than Billings, with 51 mm of precipitation.
Among the 498 cities listed in the United States, Billings ranks joint 459th of 498 for the warmest December highs and joint 16th of 498 for the driest December (precipitation, lowest first). The mean December high of those 498 cities is 10.5°C; Billings is 8.7°C cooler than that mean.
From December to January, average highs fall by 0.5°C to 1.3°C, and monthly precipitation rises from 20 mm to 22 mm.
The annual picture
December in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Billings climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.3°C-8.8°C | -8.8°C | 22 | 5.7 | 9.19 h |
| February | 3.5°C-7.6°C | -7.6°C | 20 | 6.1 | 10.310 h |
| March | 9.4°C-3.2°C | -3.2°C | 31 | 7.1 | 11.912 h |
| April | 13.9°C1.2°C | 1.2°C | 59 | 10.8 | 13.514 h |
| May | 19.6°C7.0°C | 7.0°C | 65 | 10.7 | 14.915 h |
| June | 24.9°C12.0°C | 12.0°C | 53 | 9.0 | 15.716 h |
| July | 30.7°C16.6°C | 16.6°C | 24 | 4.8 | 15.315 h |
| August | 30.0°C15.8°C | 15.8°C | 18 | 3.9 | 14.114 h |
| September | 23.7°C10.4°C | 10.4°C | 35 | 5.5 | 12.613 h |
| October | 15.1°C3.3°C | 3.3°C | 46 | 7.2 | 11.011 h |
| November | 7.4°C-3.0°C | -3.0°C | 23 | 5.9 | 9.510 h |
| December, selected | 1.8°C-7.5°C | -7.5°C | 20 | 5.5 | 8.79 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Missoula in DecemberUnited States · 439 kmHigh -0.1°C · Low -7.4°C · 51 mm precipitation
- Rapid City in DecemberUnited States · 456 kmHigh 2.8°C · Low -6.9°C · 15 mm rain
- Lethbridge in DecemberCanada · 542 kmHigh -0.6°C · Low -8.4°C · 16 mm precipitation
- Ogden in DecemberUnited States · 579 kmHigh 1.8°C · Low -7.9°C · 55 mm precipitation
- Regina in DecemberCanada · 593 kmHigh -6.8°C · Low -14.9°C · 17 mm precipitation
- Layton in DecemberUnited States · 595 kmHigh 1.8°C · Low -7.6°C · 51 mm precipitation
- Bismarck in DecemberUnited States · 603 kmHigh -3.4°C · Low -11.4°C · 18 mm precipitation
- Salt Lake City in DecemberUnited States · 622 kmHigh 2.3°C · Low -7.3°C · 49 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Billings) is explained once on the Billings year overview and on the Sources, method and limits page.