The climate in Longmont, CO is generally mild, with warm summers and cold winters. The average temperature in July is 79°F (26°C) during the day and around 50°F (10°C) at night. Winters are characterized by cold temperatures, with an average daily temperature of 28°F (-2°C). Snowfall can vary greatly from year to year but typically averages around 35 inches (89 cm). Precipitation in Longmont is fairly evenly distributed throughout the year, with summer months usually receiving more rain than winter months.
Longmont, Colorado gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Longmont averages 36 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 247 sunny days per year in Longmont. The US average is 205 sunny days.
Longmont gets some kind of precipitation, on average, 79 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 89 degrees
Winter Low: the January low is 13
Rain: averages 15 inches of rain a year
Snow: averages 36 inches of snow a year