Climate Insights for Wyoming

The climate in Wyoming is cool. The average annual temperature is 9°C and approximately 1,059 mm of precipitation falls per year. Wyoming receives a notable amount of rainfall throughout the year, including during its driest month. Wyoming 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 January, February, December, when temperatures can drop to -5°C. Snowfall occurs from January to December, with around 140cm accumulating over the season.The climate in Wyoming is cool. The average annual temperature is 49°F and approximately 41.7 in of precipitation falls per year. Wyoming receives a notable amount of rainfall throughout the year, including during its driest month. Wyoming 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 January, February, December, when temperatures can drop to 23°F. Snowfall occurs from January to December, with around 55in accumulating over the season.

Temperatures in Wyoming vary considerably across the year, with a 30°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 25°C and the mean temperature sits around 22°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is -3°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.Temperatures in Wyoming vary considerably across the year, with a 55°F difference between the coldest and warmest months. The warmest month is July, when average highs reach 78°F and the mean temperature sits around 71°F. The coldest month is January, when overnight lows fall to 23°F and the daily average is 27°F. Daily temperature variation is modest, with an average difference of 11°F between highs and lows. The sharpest temperature change occurs between October and November, with a 12°F shift in average temperatures.

Wyoming is a moderately rainy area, receiving approximately 1,059 mm of precipitation annually, which averages out to around 88 mm per month. The wettest month is October, averaging 108 mm of rainfall. April and July also tend to see above-average precipitation. The driest month is September, with just 74 mm. That's 34 mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 140cm accumulating over the season. February typically sees the most snow at around 36cm.Wyoming is a moderately rainy area, receiving approximately 41.7 in of precipitation annually, which averages out to around 3.5 in per month. The wettest month is October, averaging 4.3 in of rainfall. April and July also tend to see above-average precipitation. The driest month is September, with just 2.9 in. That's 1.3 in less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 55in accumulating over the season. February typically sees the most snow at around 14in.

Wyoming is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap 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 19km/h in winter, 16km/h in spring, 12km/h in summer, 16km/h in autumn.Wyoming is moderately windy, with an average annual wind speed of 10mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is November, averaging 12mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 7mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5mph gap 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 12mph in winter, 10mph in spring, 8mph in summer, 10mph in autumn.

The best time to visit Wyoming is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 86 mm per month. By contrast, January can be quite cold with temperatures dropping to -5°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.The best time to visit Wyoming is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 68°F with modest rainfall averaging 3.4 in per month. By contrast, January can be quite cold with temperatures dropping to 23°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

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