Climate Insights for Clayton

The climate in Clayton is temperate. The average annual temperature is 13°C and approximately 390mm of precipitation falls per year. May is the wettest month, receiving around 55mm of rainfall. Clayton 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 January, February, December, when temperatures can drop to -3°C. Light snow can occur between January and December.

Temperatures in Clayton vary considerably across the year, with a 35°C difference between the coldest and 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 January, when overnight lows fall to -3°C and the daily average is 2°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Clayton is a quite dry location, receiving approximately 390mm of precipitation annually, which averages out to around 33mm per month. The wettest month is May, averaging 55mm of rainfall. August and July also tend to see above-average precipitation. The driest month is December, with just 14mm. That's 41mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Light snowfall can occur between January and December, totalling around 46cm annually. January is the snowiest month with approximately 10cm.

Clayton is moderately windy, with an average annual wind speed of 27km/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 31km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 23km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 8km/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, 30km/h in spring, 24km/h in summer, 26km/h in autumn.

It is currently spring in Clayton, which began on March 20, 2026. Clayton 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 January near -3°C. Summer is next, beginning on June 21, 2026 — 91 days from now.

The best time to visit Clayton is during May, 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 46mm per month. By contrast, January can be quite cold with temperatures dropping to -3°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Clayton 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.