Monthly and annual atmospheric pressure averages and daily pressure extremes for CFA. Average Average Average Extreme Extreme Greatest Month Monthly Daily Daily Daily Daily 1 Hour Average Maximum Minimum Maximum Minimum Change January 25.102 25.193 25.007 25.682 24.150 0.099 February 25.038 25.125 24.947 25.682 24.354 0.085 March 25.010 25.095 24.919 25.593 24.360 0.089 April 24.982 25.068 24.893 25.512 24.406 0.096 May 24.999 25.068 24.928 25.557 24.465 0.109 June 25.028 25.092 24.957 25.495 24.475 0.111 July 25.097 25.155 25.033 25.380 24.659 0.127 August 25.099 25.160 25.032 25.395 24.622 0.135 September 25.091 25.159 25.020 25.509 24.653 0.117 October 25.092 25.173 25.007 25.628 24.457 0.132 November 25.100 25.192 25.004 25.613 24.397 0.093 December 25.088 25.183 24.990 25.654 24.194 0.087 ANNUAL 25.061 25.139 24.978 25.682 24.150 0.135 Note: Data period of record spans January 1993 through December 2024.