Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
2009,,,,,31989,34563,36511,35067,30937,29160,27360,26161,,
2010,25342,27469,29053,29964,30644,34626,36817,36344,33263,30636,26312,25417,30491,
2011,24966,25999,27808,29554,31114,34475,36499,36559,33234,31147,27533,26869,30480,
2012,25364,27032,27932,30444,31997,33766,36665,37040,33142,31019,27805,26462,30722,
2013,24967,27386,28974,30138,32986,35487,37772,38105,33988,28083,24767,28610,30939,
2014,27724,27632,30453,33184,35663,37995,40694,40630,36800,34463,31025,29979,33854,
2015,28566,31549,33357,34539,37038,40445,42413,41155,38147,36163,32309,30385,35505,
2016,30401,33050,34621,37312,39132,42085,44269,43997,40211,37154,34561,30522,37276,
2017,29744,31024,34608,36976,40048,43119,44286,42747,37079,36965,33928,31246,36814,
2018,31244,31846,35064,37389,40670,43237,45505,39181,36000,,,31430,37157,
2019,31500,29075,33693,36093,39346,43220,46086,44952,41290,38277,35613,33858,37750,
2020,31377,34731,30318,26138,34406,41335,43606,43979,41357,38010,33237,32472,35914,
2021,33894,33537,38018,40606,43465,47538,49480,46881,43458,40924,36794,34969,40797,
2022,32033,35705,37883,39060,41650,44600,46907,46158,42838,40237,33258,30867,39266,
2023,33086,34016,35957,39029,42696,46240,47693,46374,43006,40511,35950,34128,39890,
2024,30897,34381,36584, , , , , , , , , , ,