Niwot, CO has a mild, semi-arid climate with low humidity levels. The average temperature in Niwot is fairly moderate throughout the year hovering around 50°F in the winter months and 80°F during the summer months. Winters are usually quite clear and sunny with occasional snowfall while summers tend to be bright and dry with occasional afternoon thunderstorms. Rainfall is generally light but can become more frequent during the spring months. Additionally, high winds are common in Niwot due to its location in a mountain valley, making windy days a frequent occurrence.
Niwot, Colorado gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Niwot averages 37 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 240 sunny days per year in Niwot. The US average is 205 sunny days.
Niwot gets some kind of precipitation, on average, 80 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 37 inches of snow a year