Climate Insights for Choteau Airport

Teton County, Montana, United States

Hottest
July
29°C peak
Coldest
February
-9°C low
Wettest
May
69mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Choteau Airport is cool. The average annual temperature is 7°C and approximately 394mm of precipitation falls per year. May is the wettest month, receiving around 69mm of rainfall. Choteau Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are February, January, December, when temperatures can drop to -9°C. Snowfall occurs from January to December, with around 106cm accumulating over the season.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 1° Average: -4° Min: -8° Feb Max: 0° Average: -5° Min: -9° Mar Max: 6° Average: 0° Min: -5° Apr Max: 12° Average: 5° Min: 0° May Max: 18° Average: 11° Min: 5° Jun Max: 23° Average: 16° Min: 9° Jul Max: 29° Average: 20° Min: 12° Aug Max: 28° Average: 19° Min: 12° Sep Max: 22° Average: 14° Min: 8° Oct Max: 14° Average: 7° Min: 2° Nov Max: 6° Average: 1° Min: -3° Dec Max: 1° Average: -4° Min: -7°
Max
Average
Min

Choteau Airport has a wide annual temperature range, spanning 38°C from the coldest to warmest months. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 20°C. The coldest month is February, when overnight lows fall to -9°C and the daily average is -5°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 16mm Snow: 11mm Feb Precipitation: 25mm Snow: 17mm Mar Precipitation: 22mm Snow: 13mm Apr Precipitation: 41mm Snow: 17mm May Precipitation: 69mm Snow: 6mm Jun Precipitation: 60mm Snow: 0mm Jul Precipitation: 18mm Snow: 0mm Aug Precipitation: 27mm Snow: 0mm Sep Precipitation: 42mm Snow: 4mm Oct Precipitation: 30mm Snow: 11mm Nov Precipitation: 24mm Snow: 13mm Dec Precipitation: 19mm Snow: 14mm
Precipitation
Snow

Choteau Airport is a quite dry location, receiving approximately 394mm of precipitation annually, which averages out to around 33mm per month. The wettest month is May, averaging 69mm of rainfall. June and September also tend to see above-average precipitation. The driest month is January, with just 16mm. That's 53mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 106cm accumulating over the season. February typically sees the most snow at around 17cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 21km/h Feb Wind Speed: 22km/h Mar Wind Speed: 21km/h Apr Wind Speed: 22km/h May Wind Speed: 21km/h Jun Wind Speed: 20km/h Jul Wind Speed: 18km/h Aug Wind Speed: 18km/h Sep Wind Speed: 19km/h Oct Wind Speed: 21km/h Nov Wind Speed: 22km/h Dec Wind Speed: 20km/h
Wind Speed

Choteau Airport is moderately windy, with an average annual wind speed of 20km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 21km/h in winter, 21km/h in spring, 18km/h in summer, 21km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

91 days until Summer

It is currently spring in Choteau Airport, which began on March 20, 2026. Choteau Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 29°C, while the coldest stretch bottoms out in February near -9°C. Summer is next, beginning on June 21, 2026 — 91 days from now.

Spring

Temperatures range from -5 to 18°C. Rainfall is relatively light, with around 133mm over the season and a monthly average of 44mm. Winds are moderate at around 21km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 9 to 29°C. Rainfall is relatively light, with around 104mm over the season and a monthly average of 35mm. Winds are moderate at around 18km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -3 to 22°C. Rainfall is relatively light, with around 96mm over the season and a monthly average of 32mm. Expect around 28cm of snow accumulation during this period. Winds are moderate at around 21km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -9 to 1°C. Rainfall is relatively light, with around 61mm over the season and a monthly average of 20mm. Expect around 42cm of snow accumulation during this period. Winds are moderate at around 21km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -4°
Feb -5°
Mar
Apr
May 11°
Jun 16°
Jul 20°
Aug 19°
Sep 14°
Oct
Nov
Dec -4°

The best time to visit Choteau Airport is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 35mm per month. By contrast, February can be quite cold with temperatures dropping to -9°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Choteau Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-8 °C
1 °C
21 km/h
16 mm
11 cm
Feb
-9 °C
0 °C
22 km/h
25 mm
17 cm
Mar Current
-5 °C
6 °C
21 km/h
22 mm
13 cm
Apr
0 °C
12 °C
22 km/h
41 mm
17 cm
May
5 °C
18 °C
21 km/h
69 mm
6 cm
Jun
9 °C
23 °C
20 km/h
60 mm
0 cm
Jul
12 °C
29 °C
18 km/h
18 mm
0 cm
Aug
12 °C
28 °C
18 km/h
27 mm
0 cm
Sep
8 °C
22 °C
19 km/h
42 mm
4 cm
Oct
2 °C
14 °C
21 km/h
30 mm
11 cm
Nov
-3 °C
6 °C
22 km/h
24 mm
13 cm
Dec
-7 °C
1 °C
20 km/h
19 mm
14 cm
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Metric (°C, km/h)