Climate Insights for Clinton

The climate in Clinton is cool. The average annual temperature is 10°C and approximately 511mm of precipitation falls per year. January is the wettest month, receiving around 65mm of rainfall. Clinton 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 -7°C. Snowfall occurs from January to December, with around 138cm accumulating over the season.

Clinton has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is July, when average highs reach 32°C and the mean temperature sits around 25°C. The coldest month is December, when overnight lows fall to -7°C and the daily average is -3°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.

Clinton is a relatively dry area, receiving approximately 511mm of precipitation annually, which averages out to around 43mm per month. The wettest month is January, averaging 65mm of rainfall. December and April also tend to see above-average precipitation. The driest month is July, with just 6mm. That's 59mm less than January, 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 138cm accumulating over the season. January typically sees the most snow at around 38cm.

Clinton is relatively calm, with an average annual wind speed of 11km/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 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 8km/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 pick up during the summer months. The seasonal averages are 9km/h in winter, 12km/h in spring, 12km/h in summer, 11km/h in autumn.

It is currently spring in Clinton, which began on March 20, 2026. Clinton 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 32°C, while the coldest stretch bottoms out in December near -7°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Clinton is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 20mm per month. By contrast, December can be quite cold with temperatures dropping to -7°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Clinton 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.