Grantsville Utah Climate Data

Monthly Average Climate Data for Grantsville Utah

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.6 °C3.3 °C22.86 mm
February-4.4 °C6.4 °C22.35 mm
March-0.4 °C12.1 °C28.7 mm
April2.6 °C15.7 °C37.08 mm
May7.1 °C21.6 °C39.37 mm
June11.7 °C28 °C18.8 mm
July17.2 °C33.8 °C12.95 mm
August16.3 °C32.7 °C16.26 mm
September10.5 °C26.5 °C21.84 mm
October3.7 °C17.9 °C26.67 mm
November-2 °C9.7 °C23.62 mm
December-6.2 °C3.3 °C21.34 mm
Annual4.1 °C17.6 °C291.84 mm

Climate Data for Grantsville Utah

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation