Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
1990,254,287,414,508,672,948,1108,1090,834,588,377,249,613,
1991,240,323,432,488,700,972,1202,1172,884,681,389,308,651,
1992,294,387,516,531,787,980,1164,1220,920,654,420,332,687,
1993,299,394,458,534,784,1008,1212,1204,906,681,409,333,687,
1994,317,342,493,545,820,1041,1314,1206,947,684,388,285,701,
1995,300,355,444,540,835,1097,1269,1212,962,759,438,,,
1996,217,227,421,582,768,,1210,1182,,742,364,286,,
1997,265,360,415,487,741,953,1228,1209,869,627,441,318,659,
1998,275,385,457,527,739,1008,1209,1152,940,624,411,302,669,
1999,303,343,464,564,760,994,1227,1161,924,623,445,333,678,
2000,325,379,479,583,800,1175,1242,848,809,580,395,295,659,
2001,309,342,451,531,863,1026,1168,1172,919,598,459,285,677,
2002,290,356,409,531,803,1052,1183,1159,873,624,405,324,667,
2003,307,359,404,534,756,982,1158,1080,871,669,431,464,668,
2004,270,369,477,580,804,968,1091,1021,846,611,414,294,645,
2005,295,399,419,489,713,901,1036,1000,753,571,364,252,599,
2006,276,323,417,492,687,864,968,918,756,547,346,248,570,
2007,230,288,420,478,667,847,982,925,758,536,368,233,561,
2008,202,168,350,385,610,757,851,854,656,497,361,221,493,
2009,195,291,384,613,845,1013,1084,,,,485,256,,
2010,200,288,366,400,627,804,963,,747,539,303,207,,
2011,199,265,340,408,598,754,934,931,826,500,314,227,525,
2012,203,264,329,381,563,740,953,934,706,469,316,216,506,
2013,192,243,324,376,593,750,931,759,642,433,288,201,478,
2014,201,160,295,377,604,763,898,879,667,469,282,215,484,
2015,201,276,370,417,666,779,880,675,677,504,316,203,497,
2016,208,298,364,451,677,810,930,878,737,496,384,210,537,
2017,162,212,339,397,652,801,958,735,604,462,298,214,486,
2018,197,231,331,408,673,860,994,912,775,538,327,208,538,
2019,212,192,323,354,635,833,1043,925,709,429,303,226,515,
2020,202,237,291,268,488,590, , , , , , , ,
2021, , , , , , , , , , , , , ,
2022, , , , , , , , , , , , , ,
2023, , , , , , , , , , , , , ,
2024, , , , , , , , , , , , , ,