Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
1990,240,256,329,395,462,547,629,616,541,485,414,258,432,
1991,247,326,354,393,470,561,633,633,550,485,340,309,442,
1992,289,312,397,429,495,592,689,623,565,510,357,262,462,
1993,195,225,322,348,469,610,693,683,614,510,389,298,448,
1994,274,298,409,421,506,617,689,651,605,506,341,261,466,
1995,298,318,352,411,491,625,708,681,640,548,443,350,489,
1996,274,317,397,429,504,616,682,653,613,543,398,272,475,
1997,288,341,412,408,512,752,754,731,628,540,435,328,511,
1998,283,326,393,459,537,627,697,717,628,545,446,327,499,
1999,324,308,401,433,521,782,744,697,653,581,505,337,524,
2000,321,368,452,506,579,641,745,805,678,577,442,368,540,
2001,333,336,417,499,588,644,733,694,654,578,494,290,522,
2002,289,340,397,455,564,663,715,728,651,635,497,415,529,
2003,392,441,447,472,585,688,777,733,653,596,474,398,555,
2004,340,371,472,518,585,658,716,699,679,591,499,402,544,
2005,313,388,430,483,562,631,710,667,605,526,442,342,508,
2006,310,357,388,445,515,555,587,570,552,519,433,359,466,
2007,352,383,413,452,536,581,631,650,591,538,464,344,495,
2008,301,328,383,418,512,574,612,582,556,500,456,338,463,
2009,323,321,365,440,568,572,603,598,592,512,457,354,475,
2010,315,347,399,445,529,596,696,662,654,575,442,350,501,
2011,359,385,415,474,521,566,670,651,632,567,473,421,511,
2012,380,391,422,498,565,584,665,655,637,595,474,367,520,
2013,313,342,422,477,540,613,673,683,616,526,482,365,504,
2014,390,373,466,504,580,660,704,671,641,580,437,373,531,
2015,364,444,512,508,581,661,701,663,657,583,464,337,540,
2016,342,422,487,529,606,721,816,793,748,623,574,359,585,
2017,305,423,490,552,671,796,855,1013,770,675,574,437,630,
2018,404,436,484,578,681,763,863,782,743,661,584,428,617,
2019,405,313,491,592,670,799,870,811,783,629,534,438,611,
2020,372,406,435,400,606,737,847,804,848,711,520,417,592,
2021,369,390,513,600,697,811,870,803,748,674,607,413,625,
2022,374,421,523,563,667,807,829,783,783,707,556,384,616,
2023,382,375,388,574,758,953,1032,960,906,749,650,502,686,
2024,410,455,558, , , , , , , , , , ,