Climate Overview
The climate in Graham-US Forest Service Airport is cool. The average annual temperature is 3°C and approximately 929mm of precipitation falls per year. December is the wettest month, receiving around 129mm of rainfall. Graham-US Forest Service Airport 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, November, when temperatures can drop to -11°C. Graham-US Forest Service Airport experiences heavy snowfall, typically from January through December.
Temperature
Graham-US Forest Service Airport has a wide annual temperature range, spanning 36°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 25°C with a mean of 17°C. The coldest month is December, when overnight lows fall to -11°C and the daily average is -7°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 7°C shift in average temperatures.
Precipitation
Graham-US Forest Service Airport is a moderately rainy area, receiving approximately 929mm of precipitation annually, which averages out to around 77mm per month. The wettest month is December, averaging 129mm of rainfall. February and March also tend to see above-average precipitation. The driest month is July, with just 19mm. That's 110mm less than December, 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. Graham-US Forest Service Airport receives heavy snowfall, accumulating around 468cm annually from January through December. The snowiest month is December, with approximately 91cm. Winter travel should account for significant snow cover.
Wind
Graham-US Forest Service Airport is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 9km/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 10km/h in winter, 12km/h in spring, 14km/h in summer, 11km/h in autumn.
Seasons
83 days until Summer
It is currently spring in Graham-US Forest Service Airport, which began on March 20, 2026. Graham-US Forest Service Airport 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 December near -11°C. Summer is next, beginning on June 21, 2026 — 83 days from now.
Spring
Temperatures range from -6 to 11°C. Precipitation is moderate at around 267mm for the season, averaging 89mm per month. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 4 to 25°C. Rainfall is relatively light, with around 105mm over the season and a monthly average of 35mm. Winds are generally light, averaging 14km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -9 to 19°C. Precipitation is moderate at around 205mm for the season, averaging 68mm per month. Expect around 85cm of snow accumulation during this period. Winds are generally light, averaging 11km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -11 to -1°C. Rainfall is heavy, totalling around 352mm across the season with a monthly average of 117mm. Expect around 246cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Best Time to Visit
The best time to visit Graham-US Forest Service Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 24mm per month. By contrast, December can be quite cold with temperatures dropping to -11°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Graham-US Forest Service Airport 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.
