October Heat Wave in California; Tropical Cyclone Possible in the Gulf

Much higher than typical October temperatures will continue across coastal southern California up through the Bay Area and Central Valley through midweek resulting in result in Major to Extreme HeatRisk. A tropical depression is likely to form over the Gulf of America during the middle part of this week with further strengthening possible as it moves northeastward later this week. Read More >

Snowfall Records for Sioux Falls, SD
(period of record 1893 - 1/2/26)

Greatest Seasonal Snowfall	94.7 inches	1968-1969
Greatest 24-hour Snowfall	26.0 inches	Feb. 17-18, 1962
Greatest Storm Total Snowfall	32.2 inches	Feb. 16-18, 1962
Greatest Monthly Total	48.4 inches	Feb. 1962
Greatest Snow Depth	34 inches	Dec. 31, 1968 and Feb. 28,1969

Earliest Snowfall (24-hour period)

Trace		Sep. 9, 2020
Measurable	0.3 inch	Sep. 25, 1939
Significant	2.7 inches	Oct. 1, 1999
Heavy	11.2 inches	Oct. 31 - Nov. 1, 1991

Latest Snowfall (24-hour period)

Trace		Jun. 3, 1998
Measurable	0.1 inch	May 18, 1968
Significant	2.0 inches	May 12, 1943
Heavy	10.5 inches	Apr. 28, 1994

Number of Past Heavy Snow Events (24-hour period) by Month

Month	6 inches or more	10 inches or more	14 inches or more
September	0	0	0
October	2	1	0
November	21	4	0
December	30	6	1
January	20	5	0
February	32	7	3
March	35	10	3
April	11	2	1
May	0	0	0
TOTAL	151	35	8

Greatest Snowfall By Month

Month	Snowfall (inches)	Year
September	0.9	1985
October	10.0	1991
November	21.9	1985
December	41.1	1968
January	22.2	1929
February	48.4	1962
March	31.5	1951
April	31.4	2018
May	3.0	1944
June	T	1998

Note: Statistics are the "official" snowfall amounts reported
at the observing location during the period of record. Large
variability is often seen in precipitation, even across locations
as small as the Sioux Falls metro area.

Updated Jan. '26

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