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Gardiner, Montana climate
BSk Cold semi-arid
Gardiner has a seasonal cool-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 31°C, while the coldest is December averaging around −8°C at night. Around 239 mm of precipitation falls each year, peaking in May (34 mm) and easing off in January (12 mm). Light snow accumulates each winter (50 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 figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Gardiner climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 1 | 3 | 9 | 14 | 19 | 25 | 31 | 30 | 24 | 15 | 6 | 1 |
| Avg temp (°C) | −4 | −2 | 3 | 7 | 12 | 16 | 21 | 20 | 15 | 8 | 1 | −4 |
| Avg low (°C) | −8 | −8 | −4 | 0 | 4 | 8 | 12 | 11 | 7 | 1 | −5 | −8 |
| Precipitation (mm) | 12 | 12 | 19 | 15 | 34 | 32 | 21 | 18 | 20 | 24 | 20 | 13 |
| Snowfall (cm) | 11 | 6 | 6 | 3 | 2 | 0 | — | — | 0 | 1 | 12 | 10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 1 | 3 | 9 | 14 | 19 | 25 |
| Avg temp (°C) | −4 | −2 | 3 | 7 | 12 | 16 |
| Avg low (°C) | −8 | −8 | −4 | 0 | 4 | 8 |
| Precipitation (mm) | 12 | 12 | 19 | 15 | 34 | 32 |
| Snowfall (cm) | 11 | 6 | 6 | 3 | 2 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 30 | 24 | 15 | 6 | 1 |
| Avg temp (°C) | 21 | 20 | 15 | 8 | 1 | −4 |
| Avg low (°C) | 12 | 11 | 7 | 1 | −5 | −8 |
| Precipitation (mm) | 21 | 18 | 20 | 24 | 20 | 13 |
| Snowfall (cm) | — | — | 0 | 1 | 12 | 10 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 4 | 5 | 5 | 8 | 8 | 6 | 6 | 5 | 6 | 5 | 5 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 2 | 12 | 9 | 1 | — | — | — |
| Days with low ≤ 0°C (days) | 27 | 22 | 22 | 13 | 6 | 0.7 | — | 0.0 | 1 | 11 | 21 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | 1 | 1 | 0.8 | 0.5 | 0.2 | 0.0 | — | — | — | 0.1 | 2 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 4 | 5 | 5 | 8 | 8 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 2 |
| Days with low ≤ 0°C (days) | 27 | 22 | 22 | 13 | 6 | 0.7 |
| Days with snowfall ≥ 2.5 cm (days) | 1 | 1 | 0.8 | 0.5 | 0.2 | 0.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 6 | 6 | 5 | 6 | 5 | 5 |
| Days with high ≥ 32°C (days) | 12 | 9 | 1 | — | — | — |
| Days with low ≤ 0°C (days) | — | 0.0 | 1 | 11 | 21 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | 0.1 | 2 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 69 | 72 | 73 | 71 | 61 | 45 | 47 | 52 | 64 | 69 | 69 |
| Relative humidity (%) | 98 | 98 | 97 | 86 | 75 | 70 | 62 | 57 | 61 | 73 | 90 | 98 |
| Wind speed (km/h) | 2.8 | 2.8 | 2.7 | 2.1 | 1.4 | 0.8 | 0.7 | 0.8 | 0.8 | 1.1 | 1.9 | 2.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 69 | 72 | 73 | 71 | 61 |
| Relative humidity (%) | 98 | 98 | 97 | 86 | 75 | 70 |
| Wind speed (km/h) | 2.8 | 2.8 | 2.7 | 2.1 | 1.4 | 0.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 45 | 47 | 52 | 64 | 69 | 69 |
| Relative humidity (%) | 62 | 57 | 61 | 73 | 90 | 98 |
| Wind speed (km/h) | 0.7 | 0.8 | 0.8 | 1.1 | 1.9 | 2.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Gardiner, a weather station, inside the city. The underlying daily records come from NOAA's global station network.
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.