Climate Overview
The climate in Libby Airport is cool. The average annual temperature is 6°C and approximately 1137mm of precipitation falls per year. October is the wettest month, receiving around 139mm of rainfall. Libby Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, January, December, when temperatures can drop to -9°C. Libby Airport experiences heavy snowfall, typically from January through December.
Temperature
Libby Airport has a wide annual temperature range, spanning 36°C from the coldest to warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 19°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 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.
Precipitation
Libby Airport is a moderately rainy area, receiving approximately 1137mm of precipitation annually, which averages out to around 95mm per month. The wettest month is October, averaging 139mm of rainfall. February and January also tend to see above-average precipitation. The driest month is July, with just 20mm. That's 119mm less than October, 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. Libby Airport receives heavy snowfall, accumulating around 563cm annually from January through December. The snowiest month is January, with approximately 122cm. Winter travel should account for significant snow cover.
Wind
Libby Airport is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 1km/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
83 days until Autumn
It is currently summer in Libby Airport, which began on June 21, 2026. Libby 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 August at around 27°C, while the coldest stretch bottoms out in February near -9°C. Autumn is next, beginning on September 23, 2026 — 83 days from now.
Spring
Temperatures range from -4 to 18°C. Rainfall is heavy, totalling around 309mm across the season with a monthly average of 103mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 8 to 27°C. Rainfall is relatively light, with around 106mm over the season and a monthly average of 35mm. Winds are generally light, averaging 2km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -2 to 19°C. Rainfall is heavy, totalling around 322mm across the season with a monthly average of 107mm. Expect around 104cm of snow accumulation during this period. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -9 to -1°C. Rainfall is heavy, totalling around 400mm across the season with a monthly average of 133mm. Expect around 348cm of snow accumulation during this period. Winds are generally light, averaging 1km/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 Libby Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 21mm per month. By contrast, February can be quite cold with temperatures dropping to -9°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 Libby 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.
