Climate Insights for Boise Air Terminal

The climate in Boise Air Terminal is temperate. The average annual temperature is 13°C and approximately 325mm of precipitation falls per year. Dicembre is the wettest month, receiving around 51mm of rainfall. Boise Air Terminal is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Agosto, Giugno. The coldest months are Dicembre, Gennaio, Febbraio, when temperatures can drop to -2°C. Light snow can occur between January and December.

Boise Air Terminal has a wide annual temperature range, spanning 37°C from the coldest to warmest months. Luglio is the hottest month, with daytime highs reaching 35°C and an average of 27°C. The coldest month is Dicembre, when overnight lows fall to -2°C and the daily average is 1°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.

Boise Air Terminal is a quite dry location, receiving approximately 325mm of precipitation annually, which averages out to around 27mm per month. The wettest month is December, averaging 51mm of rainfall. January and March also tend to see above-average precipitation. The driest month is July, with just 2mm. That's 50mm 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. Light snowfall can occur between January and December, totalling around 46cm annually. December is the snowiest month with approximately 14cm.

Boise Air Terminal is mildly breezy, with an average annual wind speed of 18km/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 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months.

It is currently winter in Boise Air Terminal, which began on December 21, 2026. Boise Air Terminal 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 Luglio at around 35°C, while the coldest stretch bottoms out in Dicembre near -2°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

The best time to visit Boise Air Terminal is during Maggio, Giugno and Settembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 20mm per month. By contrast, Luglio can be uncomfortably hot with highs reaching 35°C, while Dicembre is the coldest period with lows dropping to -2°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Boise Air Terminal 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.