Climate Insights for Mitchell

Sublette County, South Dakota, United States

Hottest
July
30°C peak
Coldest
January
-11°C low
Wettest
April
144mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Mitchell is temperate. The average annual temperature is 10°C and approximately 796mm of precipitation falls per year. April is the wettest month, receiving around 144mm of rainfall. Mitchell is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to -11°C. Snowfall occurs from January to December, with around 79cm accumulating over the season.

Temperature

-20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -2° Average: -7° Min: -11° Feb Max: 5° Average: 0° Min: -4° Mar Max: 13° Average: 5° Min: 0° Apr Max: 16° Average: 9° Min: 4° May Max: 22° Average: 15° Min: 9° Jun Max: 30° Average: 23° Min: 17° Jul Max: 30° Average: 24° Min: 18° Aug Max: 30° Average: 23° Min: 17° Sep Max: 25° Average: 18° Min: 13° Oct Max: 19° Average: 12° Min: 7° Nov Max: 12° Average: 6° Min: 1° Dec Max: -2° Average: -7° Min: -10°
Max
Average
Min

Mitchell has a wide annual temperature range, spanning 41°C from the coldest to warmest months. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -11°C and the daily average is -7°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 12°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 17mm Snow: 16mm Feb Precipitation: 26mm Snow: 16mm Mar Precipitation: 43mm Snow: 9mm Apr Precipitation: 144mm Snow: 1mm May Precipitation: 136mm Snow: 0mm Jun Precipitation: 63mm Snow: 0mm Jul Precipitation: 84mm Snow: 0mm Aug Precipitation: 64mm Snow: 0mm Sep Precipitation: 103mm Snow: 0mm Oct Precipitation: 32mm Snow: 0mm Nov Precipitation: 47mm Snow: 21mm Dec Precipitation: 38mm Snow: 16mm
Precipitation
Snow

Mitchell is a relatively dry area, receiving approximately 796mm of precipitation annually, which averages out to around 66mm per month. The wettest month is April, averaging 144mm of rainfall. May and September also tend to see above-average precipitation. The driest month is January, with just 17mm. That's 127mm less than April, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 79cm accumulating over the season. November typically sees the most snow at around 21cm.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 4km/h Feb Wind Speed: 5km/h Mar Wind Speed: 4km/h Apr Wind Speed: 5km/h May Wind Speed: 4km/h Jun Wind Speed: 4km/h Jul Wind Speed: 4km/h Aug Wind Speed: 4km/h Sep Wind Speed: 5km/h Oct Wind Speed: 4km/h Nov Wind Speed: 4km/h Dec Wind Speed: 5km/h
Wind Speed

Mitchell is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

Seasons

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

52 days until Autumn

It is currently summer in Mitchell, which began on June 21, 2026. Mitchell 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 30°C, while the coldest stretch bottoms out in January near -11°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

Spring

Temperatures range from 0 to 22°C. Rainfall is heavy, totalling around 323mm across the season with a monthly average of 108mm. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 17 to 30°C. Precipitation is moderate at around 210mm for the season, averaging 70mm per month. Winds are generally light, averaging 4km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 1 to 25°C. Precipitation is moderate at around 182mm for the season, averaging 61mm per month. Expect around 21cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -11 to 5°C. Rainfall is relatively light, with around 81mm over the season and a monthly average of 27mm. Expect around 47cm of snow accumulation during this period. Winds are generally light, averaging 5km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -7°
Feb
Mar
Apr
May 15°
Jun 23°
Jul 24°
Aug 23°
Sep 18°
Oct 12°
Nov
Dec -7°

The best time to visit Mitchell is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 70mm per month. By contrast, January can be quite cold with temperatures dropping to -11°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Mitchell 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
-11 °C
-2 °C
4 km/h
17 mm
16 cm
Feb
-4 °C
5 °C
5 km/h
26 mm
16 cm
Mar
0 °C
13 °C
4 km/h
43 mm
9 cm
Apr
4 °C
16 °C
5 km/h
144 mm
1 cm
May
9 °C
22 °C
4 km/h
136 mm
0 cm
Jun
17 °C
30 °C
4 km/h
63 mm
0 cm
Jul
18 °C
30 °C
4 km/h
84 mm
0 cm
Aug Current
17 °C
30 °C
4 km/h
64 mm
0 cm
Sep
13 °C
25 °C
5 km/h
103 mm
0 cm
Oct
7 °C
19 °C
4 km/h
32 mm
0 cm
Nov
1 °C
12 °C
4 km/h
47 mm
21 cm
Dec
-10 °C
-2 °C
5 km/h
38 mm
16 cm
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