Climate Overview
The climate in Altoona-Blair County Airport is temperate. The average annual temperature is 12°C and approximately 1060mm of precipitation falls per year. Altoona-Blair County Airport receives a notable amount of rainfall throughout the year, including during its driest month. Altoona-Blair County 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 January, February, December, when temperatures can drop to -4°C. Snowfall occurs from January to December, with around 72cm accumulating over the season.
Temperature
Temperatures in Altoona-Blair County Airport vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -4°C and the daily average is -1°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.
Precipitation
Altoona-Blair County Airport is a moderately rainy area, receiving approximately 1060mm of precipitation annually, which averages out to around 88mm per month. The wettest month is September, averaging 114mm of rainfall. June and May also tend to see above-average precipitation. The driest month is November, with just 63mm. That's 52mm less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 72cm accumulating over the season. January typically sees the most snow at around 22cm.
Wind
Altoona-Blair County Airport is mildly breezy, with an average annual wind speed of 15km/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 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/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 17km/h in winter, 17km/h in spring, 13km/h in summer, 15km/h in autumn.
Seasons
88 days until Summer
It is currently spring in Altoona-Blair County Airport, which began on March 20, 2026. Altoona-Blair County 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 29°C, while the coldest stretch bottoms out in January near -4°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 1 to 22°C. Precipitation is moderate at around 279mm for the season, averaging 93mm per month. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 16 to 29°C. Precipitation is moderate at around 278mm for the season, averaging 93mm per month. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 2 to 25°C. Precipitation is moderate at around 256mm for the season, averaging 85mm per month. Expect around 6cm of snow accumulation during this period. Winds are generally light, averaging 15km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -4 to 6°C. Precipitation is moderate at around 247mm for the season, averaging 82mm per month. Expect around 50cm of snow accumulation during this period. Winds are moderate at around 17km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Best Time to Visit
The best time to visit Altoona-Blair County Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 85mm per month. By contrast, January can be quite cold with temperatures dropping to -4°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Altoona-Blair County 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.
