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Billings, Montana climate
Dfb Warm-summer humid continental
Billings has a strongly seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 30°C, while the coldest is January averaging around −10°C at night. Precipitation totals about 392 mm a year and is strongly seasonal — May alone averages 63 mm while January barely receives 14 mm. Winters bring significant snowfall (89 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsBillings climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 3 | 5 | 11 | 15 | 20 | 25 | 30 | 30 | 24 | 16 | 8 | 3 |
| Avg temp (°C) | −4 | −2 | 3 | 8 | 13 | 18 | 22 | 21 | 16 | 9 | 2 | −3 |
| Avg low (°C) | −10 | −8 | −4 | 1 | 6 | 10 | 13 | 12 | 7 | 1 | −5 | −9 |
| Precipitation (mm) | 14 | 14 | 25 | 48 | 63 | 62 | 33 | 20 | 39 | 41 | 17 | 16 |
| Snowfall (cm) | 19 | 12 | 12 | 8 | 0 | — | — | — | — | 4 | 8 | 25 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 3 | 5 | 11 | 15 | 20 | 25 |
| Avg temp (°C) | −4 | −2 | 3 | 8 | 13 | 18 |
| Avg low (°C) | −10 | −8 | −4 | 1 | 6 | 10 |
| Precipitation (mm) | 14 | 14 | 25 | 48 | 63 | 62 |
| Snowfall (cm) | 19 | 12 | 12 | 8 | 0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 24 | 16 | 8 | 3 |
| Avg temp (°C) | 22 | 21 | 16 | 9 | 2 | −3 |
| Avg low (°C) | 13 | 12 | 7 | 1 | −5 | −9 |
| Precipitation (mm) | 33 | 20 | 39 | 41 | 17 | 16 |
| Snowfall (cm) | — | — | — | 4 | 8 | 25 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 5 | 6 | 9 | 11 | 10 | 7 | 5 | 6 | 7 | 6 | 4 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.6 | 4 | 16 | 15 | 4 | 0.2 | — | — |
| Days with low ≤ 0°C (days) | 29 | 26 | 23 | 11 | 2 | — | — | — | 0.7 | 10 | 23 | 29 |
| Days with snowfall ≥ 2.5 cm (days) | 2 | 2 | 1 | 1 | 0.1 | — | — | — | — | 0.6 | 1 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 5 | 6 | 9 | 11 | 10 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.6 | 4 |
| Days with low ≤ 0°C (days) | 29 | 26 | 23 | 11 | 2 | — |
| Days with snowfall ≥ 2.5 cm (days) | 2 | 2 | 1 | 1 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 5 | 6 | 7 | 6 | 4 |
| Days with high ≥ 32°C (days) | 16 | 15 | 4 | 0.2 | — | — |
| Days with low ≤ 0°C (days) | — | — | 0.7 | 10 | 23 | 29 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | 0.6 | 1 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 71 | 71 | 71 | 69 | 60 | 47 | 47 | 51 | 63 | 67 | 70 |
| Clear days (≤ 30% cloud) | 2 | 2 | 2 | 2 | 3 | 4 | 10 | 10 | 10 | 5 | 3 | 2 |
| Partly cloudy days (30–70%) | 12 | 10 | 11 | 10 | 11 | 14 | 14 | 13 | 10 | 11 | 11 | 11 |
| Cloudy days (≥ 70%) | 17 | 16 | 18 | 18 | 17 | 12 | 7 | 8 | 10 | 15 | 15 | 18 |
| Relative humidity (%) | 73 | 67 | 62 | 59 | 56 | 54 | 47 | 44 | 49 | 59 | 65 | 71 |
| Wind speed (km/h) | 12.5 | 12.2 | 11.6 | 11.3 | 10.5 | 9.8 | 8.5 | 8.4 | 9.4 | 10.8 | 11.1 | 11.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 71 | 71 | 71 | 69 | 60 |
| Clear days (≤ 30% cloud) | 2 | 2 | 2 | 2 | 3 | 4 |
| Partly cloudy days (30–70%) | 12 | 10 | 11 | 10 | 11 | 14 |
| Cloudy days (≥ 70%) | 17 | 16 | 18 | 18 | 17 | 12 |
| Relative humidity (%) | 73 | 67 | 62 | 59 | 56 | 54 |
| Wind speed (km/h) | 12.5 | 12.2 | 11.6 | 11.3 | 10.5 | 9.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 47 | 51 | 63 | 67 | 70 |
| Clear days (≤ 30% cloud) | 10 | 10 | 10 | 5 | 3 | 2 |
| Partly cloudy days (30–70%) | 14 | 13 | 10 | 11 | 11 | 11 |
| Cloudy days (≥ 70%) | 7 | 8 | 10 | 15 | 15 | 18 |
| Relative humidity (%) | 47 | 44 | 49 | 59 | 65 | 71 |
| Wind speed (km/h) | 8.5 | 8.4 | 9.4 | 10.8 | 11.1 | 11.7 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Billings Wtp (NOAA GHCN station USC00240802), about 2 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.