Climate Insights for Delta County Airport

The climate in Delta County Airport is cool. The average annual temperature is 7°C and approximately 916mm of precipitation falls per year. Delta County Airport receives a notable amount of rainfall throughout the year, including during its driest month. Delta County Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are February, January, March, when temperatures can drop to -9°C. Snowfall occurs from January to December, with around 117cm accumulating over the season.

Temperatures in Delta County Airport vary considerably across the year, with a 32°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 23°C with a mean of 20°C. The coldest month is February, when overnight lows fall to -9°C and the daily average is -6°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between April and May, with a 7°C shift in average temperatures.

Delta County Airport is a moderately rainy area, receiving approximately 916mm of precipitation annually, which averages out to around 76mm per month. The wettest month is October, averaging 98mm of rainfall. August and June also tend to see above-average precipitation. The driest month is February, with just 39mm. That's 59mm less than October, 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 117cm accumulating over the season. January typically sees the most snow at around 25cm.

Delta County Airport is moderately windy, with an average annual wind speed of 25km/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 28km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 21km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h 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 27km/h in winter, 24km/h in spring, 22km/h in summer, 26km/h in autumn.

It is currently spring in Delta County Airport, which began on March 20, 2026. Delta County 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 23°C, while the coldest stretch bottoms out in February near -9°C. Summer is next, beginning on June 21, 2026 — 87 days from now.

The best time to visit Delta County Airport is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 90mm per month. By contrast, February can be quite cold with temperatures dropping to -9°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 table below shows monthly climate averages for Delta County 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.