Twin Falls Idaho Climate Data

Monthly Average Climate Data for Twin Falls Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.9 °F37.9 °F1.16 in.
February24.7 °F43.4 °F0.72 in.
March30.6 °F53.4 °F1.02 in.
April35.4 °F60.1 °F1.07 in.
May43.3 °F69.6 °F1.28 in.
June50.2 °F78.9 °F0.67 in.
July57.1 °F89.3 °F0.17 in.
August54.9 °F87.8 °F0.32 in.
September46.5 °F77.9 °F0.45 in.
October36.5 °F64.1 °F0.89 in.
November27.8 °F49.2 °F0.91 in.
December21.8 °F37.9 °F1.37 in.
Annual37.6 °F62.5 °F10.03 in.

Climate Data for Twin Falls Idaho

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate