State Sea Level Pressure Extremes for the United States
Welcome to the United States state sea level pressure extremes page. Above is a map of the Lower 48 states showing the extremes in each. Coordination with state climatologists continues. Until all state climatologists are able to validate the numbers, the values are considered provisional/preliminary.
|
|
State Low Extremes |
When They Were Set |
Location |
Related Event |
State High Extremes |
When They Were Set |
Location |
|
Alabama |
943.0 hPa/ 27.85" |
Sept. 12, 1979 |
Dauphin Island |
1046.1 hPa/ 30.89" |
Feb. 12, 1981 |
Huntsville |
|
|
Alaska |
924.8 hPa/ 27.31" |
Dec. 31, 2020 |
Shemya |
|
1078.4 hPa/ 31.85" |
Jan. 31, 1989 |
Northway |
|
Arizona |
981.1 hPa/ 28.97" |
Jan. 21, 2010 |
Page |
|
1055.2 hPa/ 31.16" |
Dec. 22, 1967 |
Winslow |
|
Arkansas |
977.0 hPa/ 28.85" |
Feb. 9, 1960 |
Fort Smith |
|
1051.1 hPa/ 31.04" |
Jan. 5, 1924 |
Fort Smith |
|
California |
973.6 hPa/ 28.75" |
Nov. 25, 2019 |
Crescent City |
|
1045.2 hPa/ 30.86" |
Jan. 16, 2013 |
Alturas |
|
Colorado |
970.4 hPa/ 28.66" |
Mar. 13, 2019 |
Lamar |
|
1062.7 hPa/ 31.38" |
Jan. 28, 2017 |
Gunnison |
|
Connecticut |
948.2 hPa/ 28.00" |
Sep. 21, 1938 |
Middletown |
1053.8 hPa/ 31.12" |
Feb. 13, 1981 |
New Haven & Bridgeport |
|
|
Delaware |
954.0 hPa/ 28.17" |
Oct. 29, 2012 |
Claymont |
1052.2 hPa/ 31.07" |
Feb. 13, 1981 |
Wilmington |
|
|
District Of Columbia |
968.8 hPa/ 28.61"* |
Oct. 29, 2012 |
Washington |
1050.1 hPa/31.01"* |
Jan. 27, 1927 |
Washington |
|
|
Florida |
892.0 hPa/ 26.35" |
Sep. 2, 1935 |
Matacumbe Key |
1043.0 hPa/30.80" |
Jan. 3, 2008 |
Pensacola |
|
|
Georgia |
946.8 hPa/ 27.96" |
Sep. 26, 2024 |
Quitman |
1045.5 hPa/ 30.87" |
Feb. 13, 1981 |
Athens |
|
|
Hawai'i |
961.0 hPa/ 28.38" |
Sep. 11, 1992 |
Kekaha |
Hurricane Iniki |
1028.3 hPa/ 30.37" |
Apr. 4, 1998 |
Hilo |
|
Idaho |
979.5 hPa/ 28.92" |
Jan. 22, 2010 |
Burley |
|
1054.2 hPa/ 31.13" |
Jan. 21, 1930 |
Boise |
|
Illinois |
971.9 hPa/ 28.70" |
Mar. 12, 1923 |
Chicago |
|
1051.0 hPa/ 31.04" |
Jan. 7, 1968 |
Belleville |
|
Indiana |
974.6 hPa/ 28.78" |
Feb. 28, 1902 |
Indianapolis |
|
1049.4 hPa/ 30.99" |
Dec. 10, 1919 |
Evansville |
|
Iowa |
966.9 hPa/ 28.55" |
Nov. 10, 1998 |
Spencer |
|
1055.2 hPa/ 31.16" |
Jan. 7, 2015 |
Sioux City |
|
Kansas |
971.2 hPa/ 28.68" |
Mar. 13, 1973 |
Goodland |
|
1056.0 hPa/ 31.18" |
Dec. 24, 1983 |
Russell |
|
Kentucky |
975.6 hPa/ 28.81"** |
Jan. 26, 1978 |
Hebron/Covington |
Cleveland Superbomb |
1049.1 hPa/ 30.98" |
Feb. 12, 1981 |
Louisville |
|
Louisiana |
920.0 hPa/ 27.17" |
Aug. 29, 2005 |
Buras |
1048.1 hPa/ 30.95" |
Jan. 10, 1962 |
Shreveport |
|
|
Maine |
954.3 hPa/ 28.18" |
Dec. 2, 1942 |
Caribou |
|
1054.2 hPa/ 31.13" |
Jan. 21, 1949 |
Caribou |
|
Maryland |
956.3 hPa/ 28.24" |
Oct. 29, 2012 |
Chesapeake City |
1052.5 hPa/31.08" |
Feb. 13, 1981 |
Baltimore |
|
|
Massachusetts |
954.3 hPa/ 28.18" |
Sep. 11, 1954 |
Nantucket |
1052.5 hPa/ 31.08" |
Feb. 13, 1981 |
Boston |
|
|
Michigan |
956.0 hPa/ 28.23" |
Jan. 26, 1978 |
Mount Clemens |
Cleveland Superbomb |
1054.2 hPa/ 31.13" |
Mar. 6, 1948 |
Escanaba |
|
Minnesota |
955.2 hPa/ 28.21" |
Oct. 26, 2010 |
Big Fork |
|
1055.5 hPa/ 31.17" |
Feb. 17, 1989 |
International Falls |
|
Mississippi |
900 hPa/ 26.58" |
Aug. 17, 1969 |
Waveland |
1048.1 hPa/ 30.95" |
Jan. 6, 1924 |
Vicksburg |
|
|
Missouri |
972.9 hPa/ 28.73" |
Feb. 27, 1958 |
Columbia |
|
1054.0 hPa/ 31.12" |
Jan. 7, 2015 |
St. Joseph |
|
Montana |
971.8 hPa/ 28.70" |
Sep. 25, 1986 |
Miles City |
|
1063.3 hPa/ 31.40" |
Jan. 9, 1962 |
Helena |
|
Nebraska |
969.9 hPa/ 28.64" |
Mar. 26, 1950 |
Grand Island |
|
1058.2 hPa/ 31.25" |
Dec. 24, 1983 |
Chadron |
|
Nevada |
978.0 hPa/ 28.88" |
Jan. 21, 2010 |
Eureka |
|
1054.2 hPa/ 31.13" |
Dec. 9, 1956 |
Elko |
|
New Hampshire |
962.5 hPa/ 28.42" |
Feb. 2, 1976 |
Mount Washington |
Groundhog Day Cyclone |
1057.0 hPa/ 31.21" |
Mar. 30, 2008 |
Mount Washington |
|
New Jersey |
945.5 hPa/ 27.92" |
Oct. 29, 2012 |
Atlantic City Marina |
1052.8 hPa/ 31.09" |
Feb. 13, 1981 |
Newark |
|
|
New Mexico |
973.4 hPa/ 28.74" |
Mar. 13, 2019 |
Clayton |
|
1051.1 hPa/ 31.04" |
Jan. 10, 1962 |
Roswell |
|
New York |
946.2 hPa/ 27.94" |
Sep. 21, 1938 |
Bellport |
1053.5 hPa/ 31.11" |
Feb. 13, 1981 |
Albany |
|
|
North Carolina |
947.1 hPa/ 27.97" |
Sep. 14, 1944 |
Cape Hatteras |
1050.1 hPa/ 31.01" |
Feb. 13, 1981 |
Greensboro |
|
|
North Dakota |
964.4 hPa/ 28.48" |
Oct. 26, 2010 |
Grand Forks |
|
1060.3 hPa/ 31.31" |
Dec. 24, 1983 |
Williston |
|
Ohio |
957.7 hPa/ 28.28" |
Jan. 26, 1978 |
Cleveland |
Cleveland Superbomb |
1051.2 hPa/ 31.04" |
Jan. 26, 1927 |
Toledo |
|
Oklahoma |
972.2 hPa/ 28.71" |
Feb. 9, 1960 |
Enid |
|
1054.5 hPa/ 31.14" |
Dec. 24, 1983 |
Enid |
|
Oregon |
966.1 hPa/ 28.53" |
Dec. 12, 1995 |
Astoria |
Hannukah Storm |
1054.5 hPa/ 31.14" |
Jan. 1, 1979 |
Baker City |
|
Pennsylvania |
951.9 hPa/ 28.11" |
Oct. 29, 2012 |
Marcus Hook |
1053.2 hPa/ 31.10" |
Feb. 13, 1981 |
Williamsport |
|
|
Puerto Rico |
926.6 hPa/ 27.36" |
Sep. 20, 2017 |
Yabucoa |
1025.1 hPa/ 30.27" |
Jan. 27, 1957 |
San Juan |
|
|
Rhode Island |
955.0 hPa/ 28.20" |
Mar. 7, 1932 |
Block Island |
|
1052.5 hPa/ 31.08" |
Feb. 13, 1981 |
Providence |
|
South Carolina |
933.0 hPa/ 27.55" |
Sep. 22, 1989 |
Mount Pleasant |
1047.6 hPa/ 30.935" |
Feb. 13, 1981 |
Greer |
|
|
South Dakota |
969.5 hPa/ 28.63" |
Mar. 26, 1950 |
Sioux Falls |
|
1056.6 hPa/ 31.20" |
Dec. 28, 1917 |
Pierre |
|
Tennessee |
973.9 hPa/ 28.76" |
Jan. 25, 1978 |
Bristol/Tri-Cities |
Cleveland Superbomb |
1048.8 hPa/ 30.97" |
Jan. 5, 1924 |
Nashville |
|
Texas |
935.3 hPa/ 27.62" |
Sep. 11, 1961 |
Port Lavaca |
1053.5 hPa/ 31.11" |
Dec. 24, 1989 |
Amarillo |
|
|
Utah |
979.6 hPa/ 28.93" |
Feb. 22, 2023 |
Moab |
|
1054.2 hPa/ 31.13" |
Dec. 8, 1956 |
Milford |
|
Vermont |
957.7 hPa/ 28.28" |
Jan. 3, 1913 |
Burlington |
|
1053.2 hPa/ 31.10" |
Feb. 13, 1981 |
Burlington |
|
Virginia |
960.0 hPa/ 28.35" |
Mar. 6, 1932 |
Norfolk |
|
1052.7 hPa/ 31.09" |
Feb. 13, 1981 |
Sterling/Dulles Airport |
|
Washington |
960.9 hPa/ 28.37" |
Dec. 12, 1995 |
Destruction Island |
Hannukah Storm |
1053.2 hPa/ 31.09" |
Jan. 1, 1979 |
Spokane |
|
West Virginia |
964.6 hPa/ 28.48" |
Jan. 26, 1978 |
Wheeling |
Cleveland Superbomb |
1051.6 hPa/ 31.05" |
Feb. 13, 1981 |
Martinsburg |
|
Wisconsin |
961.3 hPa/ 28.39" |
Oct. 26, 2010 |
Superior |
|
1053.2 hPa/ 31.10" |
Jan. 26, 1927 |
Green Bay |
|
Wyoming |
977.0 hPa/ 28.85" |
Jan. 12, 1932 |
Lander |
|
1061.2 hPa/ 31.34" |
Dec. 24, 1983 |
Worland |
*The District of Columbia has large gaps in their weather record as Washington National Airport (DCA) was moved into Virginia by an act of Congress in 1945. The D.C. dataset includes observations from the old Weather Bureau castle on M St. NW into the early 1940's, Bolling Air Force Base into the late 1960's, and NOS Site WASD2 along the Potomac River since 2005. This leaves a huge gap which excludes the impact of the March 1993 Storm & the extensive mid-February 1981 anticyclone on its low and high pressure records, respectively.
**No pressure records have been found from far eastern Kentucky for the month of January 1978. The Jackson record starts later. Based upon Parkersburg, West Virginia data and a publication soon after the fact, values as low as the mid to upper 960s hPa would have been possible during the Cleveland Superbomb in northeast Kentucky.
For any questions, comments,
suggestions, e-mail David.Roth@noaa.gov
Last updated February 9, 2026
