Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
2011,,3521,3666,3875,3794,3995,3857,4041,4304,4157,3698,3566,,
2012,3429,3579,3648,3931,4009,3974,3956,4203,4506,4064,3750,3493,3879,
2013,3255,3577,3819,4009,4013,4041,3974,4095,4467,4366,3732,3471,3902,
2014,3286,3571,3927,4073,4039,4228,4008,4255,4551,4335,3674,3626,3964,
2015,3496,3883,4173,4252,4171,4320,4256,4500,4651,4336,3886,3734,4138,
2016,3686,4022,4243,4444,4472,4613,4407,4647,4973,4580,4265,3759,4343,
2017,3395,4050,4376,4578,4819,4779,4613,4749,4969,4952,4517,4261,4505,
2018,4010,4251,4575,4891,4914,4997,4815,5226,5386,5100,4596,4467,4769,
2019,4460,4410,4805,5039,5021,5052,4791,5096,5486,5207,4731,4423,4877,
2020,4400,4551,4343,4005,4611,4816,4781,5201,5487,5395,4473,4252,4693,
2021,4377,4368,5016,5268,5221,5393,5174,5569,5648,5528,5004,4901,5122,
2022,4469,4694,4987,5109,5239,5310,5363,5493,5721,5554,4760,4464,5097,
2023,4622,4792,4922,5329,5430,5556,5489,5645,5938,5927,5198,4877,5310,
2024,4616,5135,5389, , , , , , , , , , ,