Spokane Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Spokane, Washington during each month of the year.

The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F each month in Spokane, scroll down farther. There are also monthly and yearly counts of days with cold weather.

All the numbers are long-term historical averages based on climate data gathered from 1981 to 2010.

Average Spokane temperatures
High °F Low °F   High °C Low °C
34 25 January 1 -4
40 26 February 4 -3
49 32 March 9 0
57 37 April 14 3
66 44 May 19 7
74 50 June 23 10
83 56 July 29 14
83 56 August 28 13
73 47 September 23 9
58 37 October 14 3
42 30 November 5 -1
32 23 December 0 -5
58 39 Year 14 4

Days of Hot Weather in Spokane

Spokane's hot weather appears from May to September, when temperatures can peak in the 80s or 90s Fahrenheit. The city averages 16 days a year with 90-degree temperatures. A day occasionally heats up to 100 °F (38 °C), although not every year.

Number of days in Spokane of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 0 0 0
February 0 0 0
March 0 0 0
April 2 0 0
May 10 3 0
June 20 8 1
July 29 21 7
August 29 20 7
September 18 8 1
October 3 0 0
November 0 0 0
December 0 0 0
Year 110 60 16

How Often Spokane Has Cold Temperatures

Spokane averages 117 frosty nights a year, beginning in September and lingering until May. Typically on two or three of those nights, the temperature drops to 0 °F (-18 °C) or below.

On an average of 33 days annually the thermometer never rises above freezing. Days that chilly can occur from October to March.

Days per month on average in Spokane when the minimum temperature drops to 32, 20 or 10 °F or below
  10 °F
-12 °C
20 °F
-8 °C
32 °F
0 °C
January 3 8 24
February 2 5 20
March 0 1 16
April 0 0 6
May 0 0 1
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 1
October 0 1 7
November 1 4 17
December 4 10 26
Year 10 29 117
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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