Sweetwater Idaho Climate Data

Monthly Average Climate Data for Sweetwater Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January29.2 °F41.0 °F1.98 in.
February30.1 °F46.6 °F1.74 in.
March33.9 °F55.0 °F2.0 in.
April39.0 °F62.7 °F2.08 in.
May45.6 °F71.9 °F2.01 in.
June51.4 °F78.5 °F1.56 in.
July56.2 °F90.4 °F0.77 in.
August55.8 °F90.5 °F0.68 in.
September48.9 °F80.1 °F0.81 in.
October40.3 °F63.4 °F1.74 in.
November33.8 °F48.5 °F2.18 in.
December28.5 °F39.6 °F2.09 in.
Annual41.1 °F64 °F19.64 in.

Climate Data for Sweetwater Idaho

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
2024 plantmaps.com