Peoria Climate -- Barometric Pressure Records

Month	Highest Pressure	Date	Lowest Pressure	Date
January	30.97 in.	January 15, 1972	28.93 in.	January 25, 1975
February	30.97 in.	February 16, 1989	28.95 in.	February 9, 1960
March	30.83 in.	March 5, 1948	28.89 in.	March 11, 1923
April	30.79 in.	April 15, 1981	28.94 in.	April 3, 1982
May	30.56 in.	May 4, 1966	29.10 in.	May 27, 1973
June	30.57 in.	June 10, 1913	29.30 in.	June 1, 1936
July	30.42 in.	July 30, 1936	29.45 in.	July 9, 1926
August	30.45 in.	August 31, 1967	29.53 in.	August 30, 1956
September	30.63 in.	September 30, 1947	29.33 in.	September 25, 1941
October	30.69 in.	October 6, 1935	28.98 in.	October 26, 2010
November	30.91 in.	November 13, 1986	29.04 in.	November 28, 1918
December	31.01 in.	December 20, 1924	28.99 in.	December 15, 1971 December 15, 1987

HIGHEST PRESSURE: 31.01 inches on December 20, 1924.
LOWEST PRESSURE: 28.89 inches on March 11, 1923.

Since 1905.