Spokane WA Snowfall Totals & Snow Accumulation Averages

How Often it Snows in Spokane

The next two tables list monthly and yearly totals for amount of snow and how many days it snows at least 0.1 inches (0.25 centimetres).

10-year snowfall averages at Spokane, 2010 to 2019

Days	Inches	Centi­metres
2.2	January	8.6	21.8
3.5	February	11.1	28.2
0.9	March	3.1	7.9
0.2	April	0.4	1.1
0.0	May	0.0	0.0
0.2	September	0.3	0.8
0.1	October	0.4	0.9
2.0	November	5.7	14.6
4.7	December	12.9	32.6
13.8	Year	42.5	108.0

30-year snowfall averages at Spokane, 1991 to 2020

Days	Inches	Centi­metres
9.5	January	12.3	31.2
5.7	February	7.8	19.8
4.0	March	3.9	9.9
1.0	April	0.7	1.8
0.3	May	0.1	0.3
0.1	September	0.1	0.3
0.3	October	0.5	1.3
4.3	November	6.2	15.7
9.5	December	13.8	35.1
34.7	Year	45.4	115.3

These averages don't show how much the snowfall in Spokane varies from year to year.

In December, for instance, one in four years totals over 17.8 inches of snow. Another 25 percent of years receive less than 6.5 inches for the month.

Similarly in January, fresh snowfall in the heaviest years amounts to over 15.8 inches, while the lightest years get less than 7.2 inches.

New snow for February ranges from over 10.2 inches in heavy snowfall years to under 1.6 inches in light years.

When Spokane Has Its First & Last Snowfalls

The first snowfall of winter for Spokane usually arrives in November. Occasionally a dusting of fresh snow lands in October or even as early as September.

The season's last snowfall most often happens in March. In one out of four years, new snow lands in April. A little fresh snow in May is also not unheard of in here.

Spokane is normally free of snow every year from June to August.

How Many Snowstorms Spokane Gets

Just under half the days of snowfall in Spokane leave just a skiff, amounting to less than an inch, of fresh snow on the ground. For 15 days a year on average, the amount of new snow totals at least an inch.

Snowstorms of over five inches a day normally occur once or twice annually. But major blizzards that dump ten inches or more in one day are rare events that happen about once a decade.

Number of days per month and year on average in Spokane with a total snowfall of at least 1, 3, 5 or 10 inches

1 inch2.5 cm	3 inches7.6 cm	5 inches12.7 cm	10 inches25.4 cm
4.0	1.1	January	0.4	0.0
2.7	0.7	February	0.3	0.0
1.2	0.4	March	0.0	0.0
0.3	0.0	April	0.0	0.0
0.1	0.0	September	0.0	0.0
0.1	0.1	October	0.0	0.0
2.1	0.6	November	0.2	0.0
4.5	1.2	December	0.4	0.1
15.0	4.1	Year	1.3	0.1

How Much Snow Normally Accumulates in Spokane

For nearly half of winter days, Spokane has at least an inch of snow on the ground. Snow mostly accumulates during January.

The snow in Spokane does build up to ten or more inches deep for five or six days a year on average, but it doesn't often top twenty inches.

Average total days per month and year in Spokane with snow depth of at least 1, 3, 5 or 10 inches on the ground

1 inch2.5 cm	3 inches7.6 cm	5 inches12.7 cm	10 inches25.4 cm
15.9	10.0	January	7.3	2.4
10.2	6.1	February	4.2	1.6
3.9	2.0	March	1.2	0.6
0.1	0.0	April	0.0	0.0
0.3	0.2	October	0.1	0.0
4.4	1.8	November	0.7	0.0
13.2	7.7	December	4.0	1.2
48.0	27.8	Year	17.5	5.8