Record Pressures in Sioux Falls, SD

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