Climate Insights for Rexburg

The climate in Rexburg is cool. The average annual temperature is 6°C and approximately 639mm of precipitation falls per year. May is the wettest month, receiving around 79mm of rainfall. Rexburg 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, February, when temperatures can drop to -9°C. Rexburg experiences heavy snowfall, typically from January through December.

Rexburg has a wide annual temperature range, spanning 37°C from the coldest to warmest months. The warmest month is July, when average highs reach 28°C and the mean temperature sits around 20°C. The coldest month is December, when overnight lows fall to -9°C and the daily average is -6°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.

Rexburg is a relatively dry area, receiving approximately 639mm of precipitation annually, which averages out to around 53mm per month. The wettest month is May, averaging 79mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 13mm. That's 65mm less than May, 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. Rexburg receives heavy snowfall, accumulating around 232cm annually from January through December. The snowiest month is December, with approximately 50cm. Winter travel should account for significant snow cover.

Rexburg is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, 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 4km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 13km/h in winter, 15km/h in spring, 16km/h in summer, 14km/h in autumn.

Advertisements

It is currently spring in Rexburg, which began on March 20, 2026. Rexburg 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 28°C, while the coldest stretch bottoms out in December near -9°C. Summer is next, beginning on June 21, 2026 — 51 days from now.

The best time to visit Rexburg is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 27mm per month. By contrast, December can be quite cold with temperatures dropping to -9°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Rexburg 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.