Iliff Colorado Climate Data

Monthly Average Climate Data for Iliff Colorado

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.1 °F42.7 °F0.29 in.
February16.1 °F44.8 °F0.43 in.
March24.1 °F55.3 °F0.83 in.
April31.9 °F62.6 °F1.75 in.
May42.9 °F71.6 °F2.73 in.
June53.4 °F84.1 °F2.52 in.
July59.7 °F90.8 °F2.54 in.
August56.5 °F88.3 °F2.19 in.
September47.1 °F80.0 °F1.4 in.
October33.7 °F66.4 °F1.15 in.
November22.6 °F53.0 °F0.46 in.
December14.1 °F42.0 °F0.38 in.
Annual34.7 °F65.1 °F16.67 in.

Climate Data for Iliff 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 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate