Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 1995,,,,,,7845,8418,8444,7066,,5805,5432,, 1996,4388,5206,5819,6245,6422,7590,8534,8858,6866,5874,5600,5262,6389, 1997,4486,5085,6101,5976,6402,7352,8777,8564,6833,6221,6037,5668,6459, 1998,4913,5309,5837,6588,6825,8113,9500,9274,7283,6563,6200,5680,6840, 1999,4982,5615,6614,6723,7163,8516,10050,9834,7720,6721,6623,6142,7225, 2000,5392,5933,6602,6853,7282,8398,9941,9556,7341,6843,6265,6089,7208, 2001,5463,5803,6838,7094,7536,8480,9793,10055,7610,7012,6844,5995,7377, 2002,5427,6303,7177,7128,8048,9197,10085,10251,7778,7312,6656,6964,7694, 2003,5963,6190,7014,7438,8014,9004,10450,10196,7707,7655,6890,6352,7739, 2004,5686,5977,7285,8010,8083,9211,11319,10157,8291,7607,7211,6732,7964, 2005,5646,6372,7521,7591,8087,9270,10988,10166,8082,7435,7102,6712,7914, 2006,5939,6554,7544,7842,8132,9482,10813,10016,8663,7775,7384,7161,8109, 2007,6195,6665,7887,8188,8453,9716,11030,10456,8758,8024,7829,6754,8330, 2008,6145,6572,7716,7657,8205,8837,10064,9761,7936,7701,7449,6782,7902, 2009,6245,6670,7471,8367,8855,9722,11556,10471,8911,8044,7829,6938,8423, 2010,6264,6738,7682,8403,8608,9640,11866,10331,8903,8248,7440,6812,8411, 2011,6196,6468,7436,8274,8018,9623,11020,10021,8815,7980,7400,7048,8192, 2012,6239,6764,7971,8277,8572,9575,11253,10417,8676,8182,7564,6988,8373, 2013,6141,6592,8117,8448,8937,10085,11485,10433,8745,8328,7484,7089,8490, 2014,6516,6739,8165,8803,9048,10416,12174,11116,9246,8783,8028,7502,8878, 2015,7269,7704,9004,9631,9982,11513,13483,10289,10390,9479,8623,8010,9615, 2016,7291,7908,9445,9646,10404,12152,14078,12589,11009,9712,9298,7952,10124, 2017,6947,7964,9643,10243,11087,12456,14179,14962,10484,10093,9568,8710,10528, 2018,7773,8369,10107,10396,11517,12931,14619,13246,11632,10631,9904,8790,10826, 2019,7929,7825,10046,10779,11500,13111,15094,13490,11811,10789,9433,9369,10931, 2020,7800,8427,8194,5184,8400,11326,13549,12571,12114,10398,8540,8187,9558, 2021,7949,7978,10092,10644,12013, ,15883,13046,12737,11307,10818,9239,11302, 2022,8426,9288,10526,10923,11930,13622,14616,13177,12455,11460,10298,9039,11313, 2023,8388,8831,10093,10890,12185,14176,15917,13922,12882,11831,10842,9512,11622, 2024,8143,9320, , , , , , , , , , , ,