Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
2011,,,3662,3936,3982,4115,4148,3826,3897,4169,3620,3662,,
2012,3447,3698,3724,3977,3991,4000,4016,3845,3888,4099,3695,3603,3832,
2013,3225,3578,3884,3931,4109,4078,4084,3877,3932,4116,3733,3460,3834,
2014,3440,3559,3876,4085,4179,4122,4176,4064,4006,4195,3615,3729,3921,
2015,3545,4024,4253,4319,4104,4135,4318,4212,4172,4330,3874,3741,4086,
2016,3660,4071,4178,4438,4478,4362,4549,4410,4359,4427,4258,3685,4240,
2017,3308,4103,4544,4598,4713,4695,4624,4331,4402,4472,4343,3958,4341,
2018,4184,4059,4374,4705,4855,4706,4718,4506,4570,4815,4371,4058,4493,
2019,4188,4187,4700,4876,4801,4850,4899,4773,4739,4875,4445,4195,4628,
2020,4115,4484,4522,4742,5133,5008,5054,4985,5065,5183,4393,4334,4752,
2021,4433,4546,5141,5213,5212,5117,4996,4913,4918,5214,4790,4601,4924,
2022,4296,4814,4968,4949,4894,4854,4237,4056,4814,5304,4559,4201,4662,
2023,4251,4716,4623,5249,5408,5248,5334,5036,5081,5258,4700,4413,4943,
2024,3955,4918,5124, , , , , , , , , , ,