Niwot Colorado Climate Data

Monthly Average Climate Data for Niwot Colorado

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.6 °C7.2 °C11.68 mm
February-7.3 °C8 °C14.22 mm
March-2.9 °C13.5 °C35.56 mm
April0.7 °C16.9 °C52.83 mm
May6 °C21.7 °C66.8 mm
June10.9 °C28.6 °C40.39 mm
July14.3 °C32 °C39.37 mm
August13.1 °C30.8 °C41.15 mm
September8.4 °C26.3 °C34.8 mm
October1.8 °C18.9 °C30.23 mm
November-3.9 °C12 °C18.8 mm
December-8.5 °C6.8 °C12.7 mm
Annual2 °C18.6 °C398.53 mm

Climate Data for Niwot Colorado

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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