Firth Idaho Climate Data

Monthly Average Climate Data for Firth Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.7 °F30.5 °F0.87 in.
February16.8 °F35.4 °F0.62 in.
March25.8 °F47.8 °F0.95 in.
April31.1 °F57.6 °F1.07 in.
May38.8 °F66.9 °F1.57 in.
June45.2 °F75.7 °F1.09 in.
July50.8 °F86.1 °F0.48 in.
August49.2 °F85.7 °F0.59 in.
September41.6 °F75.3 °F0.94 in.
October31.9 °F60.4 °F1.03 in.
November22.7 °F44.2 °F0.71 in.
December14.6 °F31.6 °F0.8 in.
Annual31.9 °F58.1 °F10.72 in.

Climate Data for Firth Idaho

Average First Frost DateSep. 21 - Sep. 30
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
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