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Climate & Weather Averages in City of Sun Valley, Idaho, USA

Currently: 42 °F. Clear. (Weather station: Jerome County Airport, USA). See more current weather

Annual Weather Averages in Jerome County Airport

Jerome County Airport is 66 miles from City of Sun Valley, so the actual climate in City of Sun Valley can vary a bit.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in City of Sun Valley

High Temp: 89 °F

Low Temp: 21 °F

Mean Temp: 50 °F

Precipitation: 0.85"

Humidity: 55%

Dew Point: 32 °F

Wind: 15 mph

Pressure: 30.03 "Hg

Visibility: 12 mi

January Climate & Weather Averages in City of Sun Valley

High Temp: 36 °F

Low Temp: 22 °F

Mean Temp: 29 °F

Precipitation: 1.24"

Humidity: 78%

Dew Point: 23 °F

Wind: 18 mph

Pressure: 30.22 "Hg

Visibility: 11 mi

February Climate & Weather Averages in City of Sun Valley

High Temp: 41 °F

Low Temp: 24 °F

Mean Temp: 32 °F

Precipitation: 0.78"

Humidity: 72%

Dew Point: 24 °F

Wind: 19 mph

Pressure: 30.12 "Hg

Visibility: 11 mi

March Climate & Weather Averages in City of Sun Valley

High Temp: 52 °F

Low Temp: 30 °F

Mean Temp: 41 °F

Precipitation: 1.06"

Humidity: 59%

Dew Point: 27 °F

Wind: 17 mph

Pressure: 30.04 "Hg

Visibility: 12 mi

April Climate & Weather Averages in City of Sun Valley

High Temp: 59 °F

Low Temp: 35 °F

Mean Temp: 47 °F

Precipitation: 1.07"

Humidity: 52%

Dew Point: 30 °F

Wind: 18 mph

Pressure: 29.97 "Hg

Visibility: 13 mi

May Climate & Weather Averages in City of Sun Valley

High Temp: 70 °F

Low Temp: 43 °F

Mean Temp: 56 °F

Precipitation: 1.37"

Humidity: 49%

Dew Point: 36 °F

Wind: 16 mph

Pressure: 29.92 "Hg

Visibility: 13 mi

June Climate & Weather Averages in City of Sun Valley

High Temp: 80 °F

Low Temp: 50 °F

Mean Temp: 65 °F

Precipitation: 0.61"

Humidity: 43%

Dew Point: 41 °F

Wind: 14 mph

Pressure: 29.90 "Hg

Visibility: 14 mi

July Climate & Weather Averages in City of Sun Valley

High Temp: 89 °F

Low Temp: 58 °F

Mean Temp: 74 °F

Precipitation: 0.14"

Humidity: 36%

Dew Point: 45 °F

Wind: 12 mph

Pressure: 29.91 "Hg

Visibility: 14 mi

August Climate & Weather Averages in City of Sun Valley

High Temp: 87 °F

Low Temp: 55 °F

Mean Temp: 71 °F

Precipitation: 0.29"

Humidity: 37%

Dew Point: 43 °F

Wind: 11 mph

Pressure: 29.92 "Hg

Visibility: 13 mi

September Climate & Weather Averages in City of Sun Valley

High Temp: 78 °F

Low Temp: 47 °F

Mean Temp: 62 °F

Precipitation: 0.35"

Humidity: 41%

Dew Point: 37 °F

Wind: 12 mph

Pressure: 29.98 "Hg

Visibility: 13 mi

October Climate & Weather Averages in City of Sun Valley

High Temp: 63 °F

Low Temp: 37 °F

Mean Temp: 50 °F

Precipitation: 0.87"

Humidity: 51%

Dew Point: 31 °F

Wind: 15 mph

Pressure: 30.06 "Hg

Visibility: 13 mi

November Climate & Weather Averages in City of Sun Valley

High Temp: 48 °F

Low Temp: 28 °F

Mean Temp: 38 °F

Precipitation: 1.00"

Humidity: 66%

Dew Point: 27 °F

Wind: 16 mph

Pressure: 30.16 "Hg

Visibility: 11 mi

December Climate & Weather Averages in City of Sun Valley

High Temp: 36 °F

Low Temp: 21 °F

Mean Temp: 29 °F

Precipitation: 1.44"

Humidity: 78%

Dew Point: 23 °F

Wind: 17 mph

Pressure: 30.20 "Hg

Visibility: 10 mi

Quick Climate Info

Hottest MonthJuly (74 °F avg)
Coldest MonthDecember (29 °F avg)
Wettest MonthDecember (1.44" avg)
Windiest MonthFebruary (19 mph avg)
Annual precip.10.21" (per year)

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