Monthly and annual average number of precipitation events at 690(a). 0.01 in. 0.10 in. 0.50 in. 1.00 in. or More or More or More or More January 6.6 1.8 0.1 0.0 February 5.4 1.2 0.0 0.0 March 5.6 1.9 0.2 0.0 April 7.0 2.6 0.3 0.0 May 8.6 3.4 0.5 0.1 June 6.1 2.3 0.3 0.0 July 3.8 1.0 0.2 0.0 August 4.1 1.3 0.2 0.0 September 3.9 1.9 0.3 0.0 October 5.4 1.9 0.4 0.1 November 4.4 1.4 0.1 0.0 December 7.0 1.5 0.3 0.0 ANNUAL 67.8 22.1 2.7 0.3 a. Data period of record spans March 1950 through December 2021.