Climate averages 1991–2020
Billings weather
in August.
A hot, fairly dry month: the 2nd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Billings: daytime highs average 30.0°C and nights cool to about 15.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 18 mm of rain on roughly 4 days, which makes August a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 08 min on an average August day.
The nearest other city in this atlas is Missoula (439 km away). In August its highs average 28.6°C, 1.4°C cooler than Billings, with 19 mm of rain.
Among the 498 cities listed in the United States, Billings ranks joint 239th of 498 for the warmest August highs and joint 134th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Billings is 0.1°C warmer than that mean.
From August to September, average highs fall by 6.2°C to 23.7°C, and monthly rainfall rises from 18 mm to 35 mm.
The annual picture
August 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, selected | 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 | 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
August in nearby cities
- Missoula in AugustUnited States · 439 kmHigh 28.6°C · Low 14.9°C · 19 mm rain
- Rapid City in AugustUnited States · 456 kmHigh 28.2°C · Low 16.1°C · 60 mm rain
- Lethbridge in AugustCanada · 542 kmHigh 25.2°C · Low 12.8°C · 35 mm rain
- Ogden in AugustUnited States · 579 kmHigh 30.4°C · Low 16.4°C · 11 mm rain
- Regina in AugustCanada · 593 kmHigh 24.0°C · Low 13.2°C · 61 mm rain
- Layton in AugustUnited States · 595 kmHigh 30.2°C · Low 16.4°C · 9.4 mm rain
- Bismarck in AugustUnited States · 603 kmHigh 26.9°C · Low 15.9°C · 58 mm rain
- Salt Lake City in AugustUnited States · 622 kmHigh 31.4°C · Low 17.3°C · 12 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.