Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
1990,2880,3441,4338,4776,4632,5464,5564,5669,5002,4541,4448,3203,4501,
1991,3308,3921,4650,4577,4786,5398,5600,5988,5229,4867,4275,4095,4729,
1992,3671,4122,4703,4889,5001,5624,5802,5724,5123,4991,4365,4118,4860,
1993,3570,4352,4853,5233,5302,5963,6341,6502,5712,5518,4792,4291,5207,
1994,4174,5072,5164,5498,5306,5912,6335,6453,5719,5266,4741,4206,5321,
1995,3947,4345,4991,5259,5356,6010,6307,6236,5681,5545,5127,4548,5279,
1996,4035,4406,5367,5608,5760,6251,6652,7304,5900,5205,4903,4281,5473,
1997,4051,4720,5626,5651,6007,6307,6960,7120,6417,5884,5748,4959,5788,
1998,4453,4965,5915,6165,6195,6946,7178,7342,6662,6258,6049,5086,6101,
1999,4794,5053,6053,6146,6399,7055,7422,7571,6829,6423,6205,5072,6252,
2000,4392,5211,6113,6234,6382,7052,7390,7642,6619,6380,5756,5140,6193,
2001,4921,5103,5983,6179,6440,7089,7271,7360,6650,6676,6087,4978,6228,
2002,4888,5465,6264,6283,6839,7357,7467,7771,6776,6569,6045,5539,6439,
2003,5059,,6125,6003,6524,7117,7366,7756,6753,6566,5922,5105,,
2004,4495,5039,6074,6346,6430,6969,7506,7550,6845,6525,5975,5393,6262,
2005,4683,5453,6180,6267,6403,7110,7652,7364,6622,6442,6164,5247,6299,
2006,5047,5499,5923,6359,6455,7297,7596,7464,7074,6665,6462,5730,6464,
2007,5201,5895,6331,6453,6580,7250,7695,7829,7249,6939,6675,5478,6631,
2008,5008,5764,6120,6060,6351,6780,7172,7010,6350,6363,6205,5226,6201,
2009,5114,5298,5911,6143,6602,7142,7693,7481,7058,6598,6284,5184,6376,
2010,5071,5727,6063,6242,6489,7144,7707,7503,6959,6897,,,,
2011,,,,,,,,,6784,6581,6239,5695,,
2012,5257,5660,5882,6169,6354,7039,7483,7520,6945,6896,6614,5422,6437,
2013,5020,5619,6366,6300,6583,7026,7544,7515,6758,6626,6198,5653,6434,
2014,5430,5492,6507,6421,6449,7467,7941,7877,7146,7046,6466,5908,6679,
2015,5520,6223,6874,6742,7170,8092,8465,8368,7818,7300,6881,5847,7108,
2016,5624,6391,7044,6932,7607,8599,8871,8719,8129,7800,7426,5742,7407,
2017,4910,5920,7476,7359,7850,8530,8925,8607,7847,7518,7357,6221,7377,
2018,5856,6157,6933,7301,7827,8740,9281,9112,8331,7970,7547,6208,7605,
2019,6032,5991,6972, , , , , , , , ,6296, ,
2020,5819,6301,5935,4402,6065,7742,8707,8950,9327,7883,6605,6181,6993,
2021,5993,6085,7420,7600,8241,9566,9955,9298,8849,8345,7915,6518,7982,
2022,6000,6952,7475,7464,8077,8875,8804,8679,8627,8277,7389,6148,7731,
2023,6211,6658,7238,7708,8446,9227,9307,8974,8715,8346,7694,6727,7938,
2024,5838,7225,7561,7998, , , , , , , , , ,