Northglenn Colorado Climate Data

Monthly Average Climate Data for Northglenn Colorado

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.3 °F45.9 °F0.53 in.
February20.6 °F46.9 °F0.62 in.
March28.1 °F55.8 °F1.36 in.
April34.4 °F61.6 °F2.14 in.
May43.6 °F70.4 °F2.62 in.
June52.8 °F82.7 °F1.62 in.
July58.9 °F88.9 °F1.99 in.
August56.9 °F86.6 °F1.49 in.
September48.6 °F78.8 °F1.39 in.
October36.5 °F65.7 °F1.15 in.
November26.8 °F53.9 °F0.89 in.
December19.1 °F45.1 °F0.6 in.
Annual37.1 °F65.2 °F16.4 in.

Climate Data for Northglenn 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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate