![]() Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).įor each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. The coldest month of the year in Spokane is December, with an average low of 27☏ and high of 36☏.Īverage High and Low Temperature in Spokane The cold season lasts for 3.3 months, from November 14 to February 23, with an average daily high temperature below 45☏. The hottest month of the year in Spokane is July, with an average high of 86☏ and low of 58☏. The hot season lasts for 2.8 months, from June 19 to September 12, with an average daily high temperature above 78☏. Click on each chart for more information.
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