Climate Insights for Williamsport

The climate in Williamsport is cool. The average annual temperature is 3°C and approximately 1,442 mm of precipitation falls per year. Williamsport receives a notable amount of rainfall throughout the year, including during its driest month. Williamsport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to -10°C. Williamsport experiences heavy snowfall, typically from January through December.The climate in Williamsport is cool. The average annual temperature is 38°F and approximately 56.8 in of precipitation falls per year. Williamsport receives a notable amount of rainfall throughout the year, including during its driest month. Williamsport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to 14°F. Williamsport experiences heavy snowfall, typically from January through December.

Temperatures in Williamsport vary considerably across the year, with a 27°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 17°C with a mean of 15°C. The coldest month is February, when overnight lows fall to -10°C and the daily average is -7°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between June and July, with a 5°C shift in average temperatures.Temperatures in Williamsport vary considerably across the year, with a 49°F difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 63°F with a mean of 59°F. The coldest month is February, when overnight lows fall to 14°F and the daily average is 19°F. Daily temperature variation is modest, with an average difference of 8°F between highs and lows. The sharpest temperature change occurs between June and July, with a 9°F shift in average temperatures.

Williamsport is a fairly wet location, receiving approximately 1,442 mm of precipitation annually, which averages out to around 120 mm per month. The wettest month is November, averaging 182 mm of rainfall. December and September also tend to see above-average precipitation. The driest month is February, with just 96 mm. That's 86 mm less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Williamsport receives heavy snowfall, accumulating around 488cm annually from January through December. The snowiest month is March, with approximately 89cm. Winter travel should account for significant snow cover.Williamsport is a fairly wet location, receiving approximately 56.8 in of precipitation annually, which averages out to around 4.7 in per month. The wettest month is November, averaging 7.2 in of rainfall. December and September also tend to see above-average precipitation. The driest month is February, with just 3.8 in. That's 3.4 in less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Williamsport receives heavy snowfall, accumulating around 192in annually from January through December. The snowiest month is March, with approximately 35in. Winter travel should account for significant snow cover.

Williamsport is moderately windy, with an average annual wind speed of 21km/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 25km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/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 25km/h in winter, 20km/h in spring, 16km/h in summer, 21km/h in autumn.Williamsport is very windy, with an average annual wind speed of 13mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 16mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 10mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6mph 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 16mph in winter, 12mph in spring, 10mph in summer, 13mph in autumn.

The table below shows monthly climate averages for Williamsport 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.The table below shows monthly climate averages for Williamsport 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. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. 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.