Littleton Colorado Climate Data

Monthly Average Climate Data for Littleton Colorado

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.8 °C8.2 °C11.94 mm
February-6.2 °C8.8 °C15.24 mm
March-1.8 °C13.6 °C33.27 mm
April1.8 °C16.7 °C54.36 mm
May6.8 °C21.4 °C59.94 mm
June12.2 °C28.1 °C46.23 mm
July15.6 °C31.5 °C51.05 mm
August14.5 °C30.2 °C47.75 mm
September9.6 °C25.9 °C36.83 mm
October2.6 °C18.7 °C29.46 mm
November-2.8 °C12.5 °C19.81 mm
December-7.1 °C7.7 °C13.46 mm
Annual3.2 °C18.6 °C419.34 mm

Climate Data for Littleton 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 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate