Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this week. Read More >

PRECIPITATION RECORDS AT SIOUX FALLS

The following are the official top ten heaviest 24-hour precipitation events
on record for Sioux Falls

1. 5.67 inches Aug 6-7th 2022

2. 5.07 inches Sep 19-20th 2018
3. 4.65 inches Jun 14-15th 2014
4. 4.59 inches Aug 1st 1975
5. 4.54 inches Oct 9th 1973
6. 4.40 inches Jun 20-21st 2018
7. 4.35 inches May 29-30th 2004
8. 4.32 inches Jun 16-17th 1957
9. 4.13 inches Jun 6th 1896
10. 4.04 inches Oct 5th 1911

The following are the greatest 24-hour precipitation events by month for
Sioux Falls (in inches melted and by date)

Jan   1.61   1-2nd 1960
Feb   2.00   17-18th 1962
Mar 3.27 31st 2007
Apr   3.72   22nd 2001
May   4.35   29-30th 2004
Jun   4.65   14-15th 2014
Jul   3.35   1st 1992
Aug 5.67 6-7th 2022
Sep   5.07   19-20th 2018
Oct   4.54   9th 1973
Nov   2.68   23-24th 2001
Dec   1.44   2-3rd 1955

Note that the most rain ever recorded within the city of Sioux Falls was
7.52 inches in parts of southwest Sioux Falls between 5 pm and 10 pm on
August 27, 2015. Generally 4 to 8 inches fell over most of the southern half
of Sioux Falls, with considerable flash flooding across the southern portions
of the city. There was also 7.50 inches in a small part of southwest Sioux
Falls between 4 am and 8 am on June 16th in 2004. Southwest Sioux Falls was also
the target with 7.46 inches 4 PM and 7 PM on May 22nd 1993, which resulted in
some of the worst flash flooding in Sioux Falls history.

Updated Jun '23

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Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Record 24 Hour Precipitation Amounts in Sioux Falls, SD

PRECIPITATION RECORDS AT SIOUX FALLS

The following are the official top ten heaviest 24-hour precipitation events on record for Sioux Falls

1. 5.67 inches Aug 6-7th 2022

2. 5.07 inches Sep 19-20th 2018 3. 4.65 inches Jun 14-15th 2014 4. 4.59 inches Aug 1st 1975 5. 4.54 inches Oct 9th 1973 6. 4.40 inches Jun 20-21st 2018 7. 4.35 inches May 29-30th 2004 8. 4.32 inches Jun 16-17th 1957 9. 4.13 inches Jun 6th 1896 10. 4.04 inches Oct 5th 1911

The following are the greatest 24-hour precipitation events by month for Sioux Falls (in inches melted and by date)

Jan 1.61 1-2nd 1960 Feb 2.00 17-18th 1962 Mar 3.27 31st 2007 Apr 3.72 22nd 2001 May 4.35 29-30th 2004 Jun 4.65 14-15th 2014 Jul 3.35 1st 1992 Aug 5.67 6-7th 2022 Sep 5.07 19-20th 2018 Oct 4.54 9th 1973 Nov 2.68 23-24th 2001 Dec 1.44 2-3rd 1955

Updated Jun '23

The following are the official top ten heaviest 24-hour precipitation events
on record for Sioux Falls

2. 5.07 inches Sep 19-20th 2018
3. 4.65 inches Jun 14-15th 2014
4. 4.59 inches Aug 1st 1975
5. 4.54 inches Oct 9th 1973
6. 4.40 inches Jun 20-21st 2018
7. 4.35 inches May 29-30th 2004
8. 4.32 inches Jun 16-17th 1957
9. 4.13 inches Jun 6th 1896
10. 4.04 inches Oct 5th 1911

The following are the greatest 24-hour precipitation events by month for
Sioux Falls (in inches melted and by date)

Jan 1.61 1-2nd 1960
Feb 2.00 17-18th 1962
Mar 3.27 31st 2007
Apr 3.72 22nd 2001
May 4.35 29-30th 2004
Jun 4.65 14-15th 2014
Jul 3.35 1st 1992
Aug 5.67 6-7th 2022
Sep 5.07 19-20th 2018
Oct 4.54 9th 1973
Nov 2.68 23-24th 2001
Dec 1.44 2-3rd 1955