Climate Overview
The climate in Penticton Regional Airport is cool. The average annual temperature is 6°C and approximately 675mm of precipitation falls per year. November is the wettest month, receiving around 91mm of rainfall. Penticton Regional 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 February, December, January, when temperatures can drop to -6°C. Penticton Regional Airport experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Penticton Regional Airport vary considerably across the year, with a 32°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 18°C. The coldest month is February, when overnight lows fall to -6°C and the daily average is -3°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.
Precipitation
Penticton Regional Airport is a relatively dry area, receiving approximately 675mm of precipitation annually, which averages out to around 56mm per month. The wettest month is November, averaging 91mm of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 22mm. That's 69mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Penticton Regional Airport receives heavy snowfall, accumulating around 228cm annually from January through December. The snowiest month is December, with approximately 55cm. Winter travel should account for significant snow cover.
Wind
Penticton Regional Airport is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 12km/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. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
88 days until Summer
It is currently spring in Penticton Regional Airport, which began on March 20, 2026. Penticton Regional 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 26°C, while the coldest stretch bottoms out in February near -6°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from -2 to 18°C. Precipitation is moderate at around 162mm for the season, averaging 54mm per month. Winds are generally light, averaging 11km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 8 to 26°C. Rainfall is relatively light, with around 96mm over the season and a monthly average of 32mm. Winds are generally light, averaging 10km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -2 to 19°C. Precipitation is moderate at around 202mm for the season, averaging 67mm per month. Expect around 50cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -6 to 1°C. Precipitation is moderate at around 216mm for the season, averaging 72mm per month. Expect around 136cm of snow accumulation during this period. Winds are generally light, averaging 9km/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 Penticton Regional Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 23mm per month. By contrast, February can be quite cold with temperatures dropping to -6°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 Penticton Regional 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.
