Brighton Colorado Climate Data

Monthly Average Climate Data for Brighton Colorado

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.2 °F44.0 °F0.38 in.
February17.5 °F45.4 °F0.43 in.
March26.1 °F56.4 °F1.07 in.
April33.1 °F62.5 °F1.76 in.
May42.8 °F71.3 °F2.37 in.
June52.1 °F83.7 °F1.37 in.
July57.9 °F89.8 °F1.47 in.
August55.6 °F87.5 °F1.54 in.
September46.8 °F79.7 °F1.15 in.
October34.1 °F65.8 °F0.97 in.
November23.8 °F53.1 °F0.68 in.
December15.1 °F43.1 °F0.36 in.
Annual35 °F65.2 °F13.55 in.

Climate Data for Brighton 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 : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate