Climate Overview
The climate in Grant County Regional Airport is cool. The average annual temperature is 7°C and approximately 660mm of precipitation falls per year. December is the wettest month, receiving around 82mm of rainfall. Grant County Regional 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 December, January, February, when temperatures can drop to -6°C. Grant County Regional Airport experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Grant County Regional Airport vary considerably across the year, with a 35°C difference between the coldest and 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 December, when overnight lows fall to -6°C and the daily average is -3°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.
Precipitation
Grant County Regional Airport is a relatively dry area, receiving approximately 660mm of precipitation annually, which averages out to around 55mm per month. The wettest month is December, averaging 82mm of rainfall. March and May also tend to see above-average precipitation. The driest month is July, with just 10mm. That's 72mm less than December, 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. Grant County Regional Airport receives heavy snowfall, accumulating around 209cm annually from January through December. The snowiest month is December, with approximately 45cm. Winter travel should account for significant snow cover.
Wind
Grant County Regional Airport is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
83 days until Summer
It is currently spring in Grant County Regional Airport, which began on March 20, 2026. Grant County Regional 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 December near -6°C. Summer is next, beginning on June 21, 2026 — 83 days from now.
Spring
Temperatures range from -3 to 18°C. Precipitation is moderate at around 219mm for the season, averaging 73mm per month. Winds are generally light, averaging 14km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 7 to 29°C. Rainfall is relatively light, with around 65mm over the season and a monthly average of 22mm. Winds are generally light, averaging 13km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -3 to 23°C. Rainfall is relatively light, with around 148mm over the season and a monthly average of 49mm. Expect around 30cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -6 to 4°C. Precipitation is moderate at around 229mm for the season, averaging 76mm per month. Expect around 124cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Best Time to Visit
The best time to visit Grant County Regional 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 22mm per month. By contrast, December can be quite cold with temperatures dropping to -6°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Grant County Regional 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.
