Annual Weather Averages in Jerome County Airport
Jerome County Airport is 28 miles from Twin Falls County, so the actual climate in Twin Falls County can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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 Twin Falls County
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