Climate Overview
The climate in St. George Airport is cool. The average annual temperature is 5°C and approximately 942mm of precipitation falls per year. St. George Airport receives a notable amount of rainfall throughout the year, including during its driest month. St. George Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are March, January, February, when temperatures can drop to 0°C. Snowfall occurs from January to December, with around 177cm accumulating over the season.
Temperature
St. George Airport sees moderate temperature variation throughout the year, ranging from 0°C to 11°C. August is the warmest month, though highs remain moderate at 11°C with a mean of 10°C. The coldest month is March, when overnight lows fall to 0°C and the daily average is 0°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows. The sharpest temperature change occurs between May and June, with a 3°C shift in average temperatures.
Precipitation
St. George Airport is a moderately rainy area, receiving approximately 942mm of precipitation annually, which averages out to around 79mm per month. The wettest month is November, averaging 118mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 41mm. That's 78mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 177cm accumulating over the season. December typically sees the most snow at around 42cm.
Wind
St. George Airport is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/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 10km/h in winter, 8km/h in spring, 6km/h in summer, 9km/h in autumn.
Seasons
72 days until Autumn
It is currently summer in St. George Airport, which began on June 21, 2026. St. George 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 11°C, while the coldest stretch bottoms out in March near 0°C. Autumn is next, beginning on September 23, 2026 — 72 days from now.
Spring
Temperatures range from 0 to 5°C. Precipitation is moderate at around 166mm for the season, averaging 55mm per month. Winds are generally light, averaging 8km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 7 to 11°C. Precipitation is moderate at around 188mm for the season, averaging 63mm per month. Winds are generally light, averaging 6km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 4 to 10°C. Rainfall is heavy, totalling around 315mm across the season with a monthly average of 105mm. Expect around 15cm of snow accumulation during this period. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 0 to 3°C. Precipitation is moderate at around 273mm for the season, averaging 91mm per month. Expect around 115cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for St. George 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.
