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.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 35 | 24 | January | 2 | -4 |
| 39 | 25 | February | 4 | -4 |
| 49 | 32 | March | 9 | 0 |
| 57 | 37 | April | 14 | 3 |
| 68 | 46 | May | 20 | 8 |
| 74 | 52 | June | 24 | 11 |
| 85 | 58 | July | 29 | 15 |
| 85 | 58 | August | 29 | 15 |
| 73 | 50 | September | 23 | 10 |
| 58 | 39 | October | 14 | 4 |
| 43 | 30 | November | 6 | -1 |
| 34 | 24 | December | 1 | -4 |
| 58 | 40 | Year | 15 | 4 |
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 35 | 25 | January | 1 | -4 |
| 40 | 26 | February | 4 | -3 |
| 49 | 32 | March | 9 | 0 |
| 57 | 37 | April | 14 | 3 |
| 67 | 45 | May | 20 | 7 |
| 74 | 51 | June | 23 | 10 |
| 84 | 58 | July | 29 | 14 |
| 84 | 57 | August | 29 | 14 |
| 74 | 49 | September | 23 | 9 |
| 58 | 38 | October | 14 | 3 |
| 42 | 30 | November | 6 | -1 |
| 34 | 24 | December | 1 | -4 |
| 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 21 days a year with 90-degree temperatures. Once a year on average, a day heats up into the 100s Fahrenheit (38 °C).
| 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 | 3 | 0 | 0 |
| May | 12 | 4 | 0 |
| June | 20 | 8 | 2 |
| July | 30 | 22 | 9 |
| August | 29 | 22 | 8 |
| September | 20 | 9 | 1 |
| October | 3 | 0 | 0 |
| November | 0 | 0 | 0 |
| December | 0 | 0 | 0 |
| Year | 116 | 65 | 21 |
How Often Spokane Has Cold Temperatures
Spokane averages 132 frosty nights a year, beginning in September and lingering until May. Typically on two of those nights, the temperature drops to 0 °F (-18 °C) or below.
On an average of 34 days annually the thermometer never rises above freezing. Days that chilly can occur from October to March.
| 10 °F -12 °C |
20 °F -8 °C |
32 °F 0 °C | |
|---|---|---|---|
| January | 3 | 9 | 26 |
| February | 2 | 6 | 23 |
| March | 0 | 2 | 19 |
| April | 0 | 0 | 8 |
| May | 0 | 0 | 2 |
| June | 0 | 0 | 0 |
| July | 0 | 0 | 0 |
| August | 0 | 0 | 0 |
| September | 0 | 0 | 0 |
| October | 0 | 1 | 8 |
| November | 1 | 4 | 19 |
| December | 3 | 9 | 27 |
| Year | 9 | 31 | 132 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.