Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
1990,440,482,358,435,525,708,815,770,739,710,431,403,568,
1991,488,414,305,353,471,637,826,864,768,733,427,376,556,
1992,426,363,325,401,559,688,766,782,752,771,446,393,558,
1993,390,377,305,334,469,589,642,719,758,748,550,408,525,
1994,409,414,399,412,547,648,783,840,775,730,535,449,580,
1995,449,386,345,400,532,638,738,785,748,630,504,472,552,
1996,393,407,340,425,502,662,692,667,662,627,456,348,515,
1997,392,350,244,360,502,579,704,719,688,679,540,397,513,
1998,360,312,335,432,509,656,724,704,662,611,436,379,510,
1999,383,406,267,334,491,585,679,701,688,643,497,340,501,
2000,367,366,326,392,524,614,738,670,573,607,479,375,503,
2001,384,311,307,365,550,605,700,742,715,641,493,386,517,
2002,412,395,296,333,515,563,687,714,700,728,519,440,525,
2003,418,424,317,395,554,694,750,784,773,733,503,450,566,
2004,466,474,352,418,549,671,775,717,745,701,501,417,566,
2005,386,443,357,425,530,653,751,896,757,690,546,415,571,
2006,403,392,333,394,587,618,717,738,761,742,510,506,558,
2007,420,355,317,405,551,592,679,659,699,650,507,431,522,
2008,386,420,285,300,405,525,677,682,673,641,445,343,482,
2009,461,335,226,296,488,633,747,672,616,562,444,390,489,
2010,374,358,312,352,537,564,683,653,634,577,421,394,488,
2011,382,373,266,256,359,541,580,622,,563,470,363,453,
2012,381,343,270,307,449,507,634,682,663,531,389,326,457,
2013,383,349,264,293,514,568,639,617,538,543,397,254,447,
2014,299,295,240,304,427,496,589,598,595,535,422,316,426,
2015,345,321,305,321,489,537,636,540,537,588,429,321,447,
2016,340,294,250,348,513,493,599,552,618,513,446,308,440,
2017,330,323,231,263,441,543,609,569,542,557,413,315,428,
2018,309,326,275,299,512,558,608,579,614,564,452,336,453,
2019,322,284,219,267,498,552,622,596,624,593,502,326,450,
2020,305,326,233,276,553,666,750,773,790,633,423,315,504,
2021,298,294,292,316,562,587,598,546,579,550,435,332,449,
2022,337,337,296,298,430,485,551,566,596,576,487,360,443,
2023,378,351,289,265,563,631,614,563,570,553,438,286,458,
2024,292,265,261, , , , , , , , , , ,