Climate Overview
The climate in Denison Municipal Airport is temperate. The average annual temperature is 10°C and approximately 905mm of precipitation falls per year. May is the wettest month, receiving around 151mm of rainfall. Denison Municipal Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, February, December, when temperatures can drop to -9°C. Snowfall occurs from January to December, with around 62cm accumulating over the season.
Temperature
Denison Municipal Airport has a wide annual temperature range, spanning 38°C from the coldest to warmest months. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -9°C and the daily average is -5°C. On average, daily temperatures fluctuate by about 11°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
Denison Municipal Airport is a moderately rainy area, receiving approximately 905mm of precipitation annually, which averages out to around 75mm per month. The wettest month is May, averaging 151mm of rainfall. June and August also tend to see above-average precipitation. The driest month is January, with just 29mm. That's 122mm less than May, 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. Snowfall is a regular feature from January to December, with around 62cm accumulating over the season. January typically sees the most snow at around 16cm.
Wind
Denison Municipal Airport is moderately windy, with an average annual wind speed of 23km/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 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/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 23km/h in winter, 25km/h in spring, 20km/h in summer, 23km/h in autumn.
Seasons
87 days until Summer
It is currently spring in Denison Municipal Airport, which began on March 20, 2026. Denison Municipal 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 January near -9°C. Summer is next, beginning on June 21, 2026 — 87 days from now.
Spring
Temperatures range from -1 to 23°C. Precipitation is moderate at around 300mm for the season, averaging 100mm per month. Winds are moderate at around 25km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 18 to 29°C. Rainfall is heavy, totalling around 305mm across the season with a monthly average of 102mm. Winds are moderate at around 20km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 0 to 26°C. Precipitation is moderate at around 194mm for the season, averaging 65mm per month. Expect around 7cm of snow accumulation during this period. Winds are moderate at around 23km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -9 to 3°C. Rainfall is relatively light, with around 106mm over the season and a monthly average of 35mm. Expect around 42cm of snow accumulation during this period. Winds are moderate at around 23km/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 Denison Municipal Airport is during July and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 78mm per month. By contrast, January 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.
Monthly Climate Data
The table below shows monthly climate averages for Denison Municipal 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.
