Climate Insights for St John

The climate in St John is temperate. The average annual temperature is 13°C and approximately 1,026 mm of precipitation falls per year. St John receives a notable amount of rainfall throughout the year, including during its driest month. St John 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 January, February, March, when temperatures can drop to 7°C.The climate in St John is temperate. The average annual temperature is 55°F and approximately 40.4 in of precipitation falls per year. St John receives a notable amount of rainfall throughout the year, including during its driest month. St John 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 January, February, March, when temperatures can drop to 45°F.

St John sees moderate temperature variation throughout the year, ranging from 7°C to 19°C. August is the warmest month, though highs remain moderate at 19°C with a mean of 18°C. January is the coolest month, with minimum temperatures around 7°C and an average of 9°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.St John sees moderate temperature variation throughout the year, ranging from 45°F to 65°F. August is the warmest month, though highs remain moderate at 65°F with a mean of 64°F. January is the coolest month, with minimum temperatures around 45°F and an average of 47°F. Daily temperature variation is modest, with an average difference of 3°F between highs and lows. The sharpest temperature change occurs between October and November, with a 5°F shift in average temperatures.

St John is a moderately rainy area, receiving approximately 1,026 mm of precipitation annually, which averages out to around 85 mm per month. The wettest month is November, averaging 145 mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 40 mm. That's 105 mm 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.St John is a moderately rainy area, receiving approximately 40.4 in of precipitation annually, which averages out to around 3.3 in per month. The wettest month is November, averaging 5.7 in of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 1.6 in. That's 4.1 in 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.

St John is moderately windy, with an average annual wind speed of 26km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 32km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in June, with average winds dropping to 20km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 12km/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 31km/h in winter, 24km/h in spring, 21km/h in summer, 27km/h in autumn.St John is very windy, with an average annual wind speed of 16mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 20mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in June, with average winds dropping to 13mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7mph 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 19mph in winter, 15mph in spring, 13mph in summer, 17mph in autumn.

The best time to visit St John is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 60 mm per month. By contrast, January can be quite cold with temperatures dropping to 7°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit St John is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 62°F with modest rainfall averaging 2.4 in per month. By contrast, January can be quite cold with temperatures dropping to 45°F. 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 St John 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. 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.The table below shows monthly climate averages for St John based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.