Climate Overview
The climate in John H Boylan State Airport (Island Pond) is cool. The average annual temperature is 6°C and approximately 1273mm of precipitation falls per year. John H Boylan State Airport (Island Pond) receives a notable amount of rainfall throughout the year, including during its driest month. John H Boylan State Airport (Island Pond) 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 -12°C. John H Boylan State Airport (Island Pond) experiences heavy snowfall, typically from January through December.
Temperature
John H Boylan State Airport (Island Pond) has a wide annual temperature range, spanning 37°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 25°C with a mean of 20°C. The coldest month is January, when overnight lows fall to -12°C and the daily average is -8°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 8°C shift in average temperatures.
Precipitation
John H Boylan State Airport (Island Pond) is a fairly wet location, receiving approximately 1273mm of precipitation annually, which averages out to around 106mm per month. The wettest month is October, averaging 150mm of rainfall. June and April also tend to see above-average precipitation. The driest month is September, with just 79mm. That's 71mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. John H Boylan State Airport (Island Pond) receives heavy snowfall, accumulating around 319cm annually from January through December. The snowiest month is February, with approximately 65cm. Winter travel should account for significant snow cover.
Wind
John H Boylan State Airport (Island Pond) is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
94 days until Autumn
It is currently summer in John H Boylan State Airport (Island Pond), which began on June 21, 2026. John H Boylan State Airport (Island Pond) 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 25°C, while the coldest stretch bottoms out in January near -12°C. Autumn is next, beginning on September 23, 2026 — 94 days from now.
Spring
Temperatures range from -7 to 17°C. Rainfall is heavy, totalling around 307mm across the season with a monthly average of 102mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 11 to 25°C. Rainfall is heavy, totalling around 340mm across the season with a monthly average of 113mm. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -4 to 20°C. Rainfall is heavy, totalling around 335mm across the season with a monthly average of 112mm. Expect around 54cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -12 to -1°C. Precipitation is moderate at around 291mm for the season, averaging 97mm per month. Expect around 179cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for John H Boylan State Airport (Island Pond) 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.
