Sioux Falls, SD
Weather Forecast Office
Sioux Falls record highest and lowest air pressure in inches of mercury (adjusted to sea level) by month (Period of record 1948 to 2019) Month Highest Date Lowest Date Jan 31.14 7th 2015 29.05 10th 1980 Feb 31.06 3rd 1989 28.97 9th 2009 Mar 30.98 11th 1998 28.63 26th 1950 Apr 30.78 14th 1981 28.85 7th 2001 May 30.67 2nd 2013 28.77 5th 1950 June 30.47 8th 1980 29.00 25th 1969 and 7th 2007 July 30.45 4th 1972 and 6th 2018 29.35 3rd 1993 Aug 30.55 31st 1967 29.36 3rd 1980 Sept 30.58 23rd 1989 29.23 22nd 2006 Oct 30.79 18th 1989 28.77 10th 1949 Nov 30.96 13th 2013 28.91 10th 1998 Dec 31.08 22nd 1989 28.90 17th 1967 Annual 31.14 1/7/2015 28.63 3/26/1950 Sioux City record highest and lowest air pressure in inches of mercury (adjusted to sea level) by month (Period of record 1900 to 2019) Month Highest Date Lowest Date Jan 31.16 7th 2015 28.96 15th 1943 Feb 31.07 21st 1918 28.89 23rd 1977 Mar 30.85 1st 2009 28.66 26th 1950 Apr 30.75 14th 1981 28.87 2nd 1982 May 30.62 2nd 2013 28.84 5th 1950 June 30.47 10th 1913 29.08 2nd 1943 July 30.43 4th 1972 and 6th 2018 29.29 9th 1926 Aug 30.53 31st 1967 29.43 30th 1956 Sept 30.67 25th 1926 29.20 22nd 2006 Oct 30.83 8th 2000 28.99 26th 2010 Nov 30.96 1911 28.85 10th 1998 Dec 31.09 29th 1917 28.91 6th 1951 Annual 31.16 1/7/2015 28.66 3/26/1950 Updated 2/7/20
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Sioux Falls, SD
26 Weather Lane
Sioux Falls, SD 57104-0198
605-330-4247
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