Cheyenne, United States experiences average highs of 16°C (61°F) and lows of 3°C (37°F) throughout the year. The climate is relatively dry, with only 7 rainy days per month on average. Sunshine is abundant, averaging about 10 hours per day. Average highs have warmed by 1.1°C (2.0°F) across the available records.
Cheyenne, United States Weather & Climate 2026
Monthly climate averages for Cheyenne, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Aug At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5/10
Best: June, July, August, September
UV Index
6
High
Temperature 16°C / 3°C
Feels Like 11°C / -2°C
Rainy Days 7
Rainfall 36 mm
Sunshine 10 h
Humidity 52%
Wind Speed 27 km/h
Dew Point 0°C
Snow Days 7 days
Frost Days 19 days
Hottest Month
29°C
July
Avg Low15°C
Rain10days
Coldest Month
-7°C
February
Avg High4°C
Rain5days
Driest Month
4days
November
Avg High10°C
Avg Low-1°C
Windiest Month
32 km/h
December (Gusts 54)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures.
Sun Position
Sunrise 05:27
Daylight 15.1h
Sunset 20:35
Live conditions—
Cheyenne on the map · live conditions
Cheyenne, United States
- Continent
- Americas
- Country
- United States
- City
- Cheyenne
- Population
- 65.1K
- Elevation
- 1,856 m
- Coordinates
- 41.14°, -104.82°
Seasonal Breakdown
Spring
Mar–May
Avg High 14°C
Avg Low 0°C
Rain 10 days/mo
Summer
Jun–Aug
Avg High 28°C
Avg Low 14°C
Rain 9 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 17°C
Avg Low 4°C
Rain 5 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 4°C
Avg Low -6°C
Rain 5 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 2°C / -7°C . Feb: 4°C / -7°C . Mar: 9°C / -4°C . Apr: 14°C / 0°C . May: 18°C / 5°C . Jun: 26°C / 12°C . Jul: 29°C / 15°C . Aug: 28°C / 14°C . Sep: 25°C / 11°C . Oct: 16°C / 3°C . Nov: 10°C / -1°C . Dec: 5°C / -5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 19 mm. Feb: 21 mm. Mar: 50 mm. Apr: 52 mm. May: 87 mm. Jun: 50 mm. Jul: 34 mm. Aug: 32 mm. Sep: 24 mm. Oct: 24 mm. Nov: 20 mm. Dec: 14 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 59%. Feb: 55%. Mar: 55%. Apr: 53%. May: 60%. Jun: 50%. Jul: 47%. Aug: 47%. Sep: 44%. Oct: 48%. Nov: 49%. Dec: 51%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 29 km/h . Feb: 30 km/h . Mar: 29 km/h . Apr: 30 km/h . May: 26 km/h . Jun: 25 km/h . Jul: 23 km/h . Aug: 23 km/h . Sep: 23 km/h . Oct: 26 km/h . Nov: 28 km/h . Dec: 32 km/h .
Sunshine
Sunshine
Sunshine: Jan: 8h. Feb: 9h. Mar: 10h. Apr: 11h. May: 11h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 11h. Oct: 9h. Nov: 8h. Dec: 7h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 5. Nov: UV 3. Dec: UV 3.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 10 days. Feb: 9 days. Mar: 10 days. Apr: 7 days. May: 2 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 3 days. Nov: 5 days. Dec: 7 days.
Climate Trends
Average highs have warmed by 1.1°C (2.0°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 30°C | Jul · 29°C |
| Coldest month | Jan 2025 · -9°C | Feb · -7°C |
| Wettest month | Sep 2025 · 67 mm | May · 87 mm |
| Windiest month | Dec 2025 · 36 km/h | Dec · 32 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 2°C / -7°C | -3°C / -13°C | 5days (19 mm) Good | 7.6h Good | 59% Moderate | 3.1 Moderate | Poor | View Details |
| February | 4°C / -7°C | -2°C / -13°C | 5days (21 mm) Good | 8.7h Good | 55% Moderate | 4.3 Moderate | Poor | View Details |
| March | 9°C / -4°C | 4°C / -9°C | 8days (50 mm) Wet | 9.7h Good | 55% Moderate | 5.7 High | Poor | View Details |
| April | 14°C / 0°C | 9°C / -6°C | 9days (52 mm) Wet | 10.7h Excellent | 53% Moderate | 6.7 High | Poor | View Details |
| May | 18°C / 5°C | 15°C / 1°C | 13days (87 mm) Wet | 11.1h Excellent | 60% Moderate | 7.6 Very High | Fair | View Details |
| June best | 26°C / 12°C | 24°C / 9°C | 10days (50 mm) Wet | 12.9h Excellent | 50% Moderate | 8.1 Very High | Excellent | View Details |
| July best | 29°C / 15°C | 28°C / 13°C | 10days (34 mm) Wet | 13.1h Excellent | 47% Moderate | 8.2 Very High | Excellent | View Details |
| August best | 28°C / 14°C | 26°C / 12°C | 7days (32 mm) Good | 12h Excellent | 47% Moderate | 7.6 Very High | Excellent | View Details |
| September best | 25°C / 11°C | 22°C / 7°C | 5days (24 mm) Good | 10.8h Excellent | 44% Moderate | 6.5 High | Excellent | View Details |
| October | 16°C / 3°C | 12°C / -2°C | 5days (24 mm) Good | 9.2h Good | 48% Moderate | 5 Moderate | Fair | View Details |
| November | 10°C / -1°C | 4°C / -7°C | 4days (20 mm) Good | 8h Good | 49% Moderate | 3.3 Moderate | Poor | View Details |
| December | 5°C / -5°C | -1°C / -11°C | 4days (14 mm) Good | 7.3h Good | 51% Moderate | 2.7 Moderate | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Cheyenne are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Cheyenne, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Cheyenne is July, with average daytime highs of 29°C (85°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Cheyenne is February, with average overnight lows of -7°C (19°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Cheyenne is May, averaging 87mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Cheyenne runs through May, June, July, with the heaviest rainfall in May. Based on 10-year averages for Cheyenne.
Cheyenne receives approximately 121 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Cheyenne.
The least favorable months to visit Cheyenne are January, February, March, December, primarily due to very cold temperatures. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Cheyenne is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Cheyenne is 52%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Cheyenne receives snow. Months with snowfall average 7 snow days and 14 cm (6 in) of accumulation, with about 19 frost days during winter.
Average wind speeds in Cheyenne are 27 km/h (17 mph). The windiest month is December with peak winds reaching 32 km/h (20 mph) (gusts up to 54 km/h / 34 mph).
Cheyenne averages 7 clear-sky days per month with overall cloud cover around 45%. The clearest skies occur in October.
The annual average dew point in Cheyenne is 0°C (32°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Cheyenne has a Humid Subtropical climate, classified as Cfa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Cheyenne ranges from -2°C (28°F) to 11°C (52°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Cheyenne. It earns a climate score of 8.1/10 with Excellent.
For June in Cheyenne, pack Warm evening layer, Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+). With average highs of 26°C (79°F) and 10 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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