Lyons Colorado Climate Data

Monthly Average Climate Data for Lyons Colorado

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.2 °F44.7 °F0.55 in.
February19.5 °F45.6 °F0.62 in.
March26.9 °F54.8 °F1.37 in.
April33.0 °F61.1 °F2.07 in.
May42.1 °F69.7 °F3.19 in.
June51.0 °F81.9 °F2.22 in.
July57.2 °F88.0 °F1.62 in.
August55.0 °F85.7 °F1.62 in.
September47.2 °F78.0 °F1.79 in.
October35.8 °F64.9 °F1.14 in.
November26.0 °F52.7 °F0.76 in.
December18.2 °F44.0 °F0.46 in.
Annual35.8 °F64.3 °F17.41 in.

Climate Data for Lyons Colorado

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year