Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 2014,,,,,,,,7547,7820,8216,7053,7436,, 2015,7230,8268,8787,9730,10237,10635,10393,10761,10900,11049,10197,9793,9832, 2016,9576,10499,11024,11947,12072,12567,12171,12539,12342,12402,11691,10202,11586, 2017,9010,11157,12131,13110,14104,14300,13664,14367,13658,13935,12905,12283,12885, 2018,11849,12436,13095,14277,14766,15236,14612,14985,14675,14689,13737,13011,13947, 2019,12927,12938,14521,15641,15684,16261,15910,16236,15776,15679,14552,13435,14963, 2020,13017,13617,12296,10610,12857,14497,14222,14634,15057,15835,14579,14428,13804, 2021,14677,15134,17631,18731,19142,19748,19285,19956,20381,21282,20439,20869,18940, 2022,17371,18966,19792,21033,21642,21381,20483,20126,19272,19165,16945,15927,19342, 2023,16300,17115,17291,19151,19039,20247,18017,18913,18387,18120,16472,16246,17948, 2024,14450,17384,17649, , , , , , , , , , ,