Lewiston

The tables below display average monthly climate and weather indicators in Lewiston Idaho.

Temperature by: Fahrenheit / Centigrade

Lewiston Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Avg. Temperature33.639.144.150.658.466.974.173.764.152.341.334.552.7
Avg. Max Temperature39.646.653.561.570.279.889.088.377.263.248.140.263.1
Avg. Min Temperature27.631.534.739.746.553.959.258.950.941.434.428.742.3
Days with Max Temp of 90 F or Higher0.00.00.0< 0.51.04.016.014.04.00.00.00.040.0
Days with Min Temp Below Freezing21.016.012.03.0< 0.50.00.00.0< 0.53.012.021.087.0
 
Lewiston Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Heating Degree Days97372564843621064.06.016.01413947119465270
Cooling Degree Days0.00.00.00.06.01212882851140.00.00.0814
 
Lewiston Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precipitation (inches)1.30.91.11.11.31.30.70.80.80.91.21.212.4
Days with Precipitation 0.01 inch or More12.09.011.010.010.09.05.04.05.08.011.011.0104
Monthly Snowfall (inches)5.92.51.30.1< 0.050.0< 0.050.00.00.11.74.215.8
 
Other Lewiston Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average Wind Speed0.00.00.00.00.00.00.00.00.00.00.00.00.0
Clear Days3.03.04.05.06.08.018.016.013.09.03.03.091.0
Partly Cloudy Days4.05.06.06.09.09.07.08.07.07.06.04.078.0
Cloudy Days24.021.021.019.016.013.06.07.09.015.022.024.0196
Percent of Possible Sunshine0.00.00.00.00.00.00.00.00.00.00.00.00.0
Avg. Relative Humidity60.074.568.561.558.556.548.041.546.055.565.574.573.5

Weather information for other cities in Idaho

Portions of this site are based on the CIA World Fact Book, a public-domain work
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