Cheyenne Snowfall Totals & Accumulation Averages

How Often it Snows in Cheyenne

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 Cheyenne, 2010 to 2019

Days		Inches	Centi­metres
2.0	January	6.0	15.3
3.8	February	10.7	27.1
3.0	March	9.9	25.2
3.6	April	13.1	33.2
1.6	May	6.4	16.4
0.0	June	0.0	0.0
0.0	September	0.1	0.2
1.8	October	6.3	15.9
2.7	November	8.6	21.9
2.8	December	10.0	25.5
21.3	Year	71.2	180.7

30-year snowfall averages at Cheyenne, 1991 to 2020

Days		Inches	Centi­metres
5.9	January	6.3	16.0
7.3	February	9.0	22.9
6.8	March	9.7	24.6
6.8	April	11.3	28.7
1.9	May	3.4	8.6
0.1	June	0.0	0.0
0.5	September	1.0	2.5
3.2	October	5.9	15.0
5.8	November	7.5	19.1
6.7	December	8.8	22.4
45.0	Year	62.9	159.8

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

In December, for instance, one in four years totals over 11.1 inches of snow. Another 25 percent of years receive less than 4.3 inches for the month.

Similarly in January, fresh snowfall in the heaviest years amounts to over 9.3 inches, while the lightest years get less than 2.3 inches.

New snow for February ranges from over 12 inches in heavy snowfall years to under 5.3 inches in light years.

When Cheyenne Has Its First & Last Snowfalls

The first snowfall of autumn for Cheyenne usually arrives in October. In one out of every three or four years it starts snowing in September.

The season's last snowfall typically happens in May. Although rare, June can also get a little fresh snow.

Cheyenne is normally free of snow every year during July and August.

How Many Snowstorms Cheyenne Gets

Most days of snowfall in Cheyenne leave just a skiff, amounting to less than an inch, of fresh snow on the ground. For 20 days a year on average, the amount of new snow totals at least an inch.

Snowstorms of over five inches a day normally occur a two or three times a year. But major blizzards that dump ten inches or more in one day are uncommon events that don't appear every year.

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

1 inch 2.5 cm	3 inches 7.6 cm		5 inches 12.7 cm	10 inches 25.4 cm
2.1	0.5	January	0.1	0.0
3.1	0.7	February	0.2	0.0
3.0	0.8	March	0.3	0.1
3.2	1.3	April	0.8	0.0
0.9	0.4	May	0.2	0.1
0.3	0.1	September	0.1	0.0
1.7	0.7	October	0.3	0.0
2.4	0.7	November	0.3	0.0
2.8	0.9	December	0.3	0.0
19.5	6.1	Year	2.6	0.2

How Much Snow Normally Accumulates in Cheyenne

For only a small portion of winter days does Cheyenne have over an inch of snow on the ground.

Typically on eight days a year, the snow covering Cheyenne gets to five or more inches deep.

The snowpack doesn't often build up to over ten inches here, but it can get that deep anytime from November to March.

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

1 inch 2.5 cm	3 inches 7.6 cm		5 inches 12.7 cm	10 inches 25.4 cm
8.4	2.7	January	1.2	0.1
7.6	3.5	February	1.6	0.1
4.9	1.7	March	0.8	0.2
3.7	1.6	April	0.7	0.0
0.8	0.4	May	0.2	0.0
0.3	0.1	September	0.0	0.0
2.1	1.1	October	0.5	0.0
5.9	2.1	November	1.1	0.1
9.4	4.4	December	1.8	0.1
43.1	17.6	Year	7.9	0.6