Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 2000,,,,,,4940,5649,5778,4567,3705,2869,2559,, 2001,3013,3109,3475,3150,3923,4774,5651,5670,4704,3851,3295,2658,3939, 2002,2840,3159,3308,3287,4009,5096,6009,,,4127,3108,3039,, 2003,3137,3155,3171,3348,4103,5098,6102,5749,4938,4128,2848,2962,4062, 2004,2931,3276,3621,3508,3977,5142,5854,5690,5090,3931,3349,3180,4129, 2005,3012,3411,3560,3576,4152,5122,5883,5853,4885,3969,3149,3065,4136, 2006,3066,3418,3558,3435,4181,5249,5957,5729,5045,4168,3339,3381,4211, 2007,3462,3620,3950,3721,4492,5447,6318,6286,5341,4254,3634,3341,4489, 2008,3205,3351,3679,3578,4296,5510,6385,6173,5555,4495,3524,3282,4419, 2009,3446,3924,3754,3639,4561,5608,6519,6283,5596,4069,3421,3577,4533, 2010,3503,3767,3889,3454,4118,5455,6743,6298,5519,4078,3004,3287,4426, 2011,3378,3456,3508,3084,4751,5298,6482,6151,5418,4206,3023,3280,4336, 2012,2991,3452,,3571,4287,5472,6647,6393,5604,4196,3371,3465,4432, 2013,3455,3760,3773,3589,4567,5942,7042,6772,5659,4443,3530,3631,4680, 2014,3786,3777,4009,3895,4866,6241,7414,6955,6183,4950,3506,3907,4957, 2015,4004,4475,4554,4356,5366,6962,7778,7599,6654,5245,3995,4150,5428, 2016,4361,4761,4883,4611,5907,7479,8392,8214,7287,5332,4477,4166,5823, 2017,4308,4573,4867,4496,6065,7632,8612,8451,7168,5604,4297,4772,5904, 2018,4778,4941,5172,4717,6241,8058,8969,8332,7690,5853,4513,4511,6148, 2019,5032,4178,5365,4980,6299,8374,9394,8767,7870,5872,4847,4990,6331, 2020,4855,5289,4321,3280,5233,7493,9409,9185,8943,6794,4663,5248,6226, 2021,5466,5467,6122,5844,7689,10453,10878,9855,9093,6793,5254,5299,7351, 2022,5596,6428,6253,5606,7350,10079,10015,9211,8783,6895, ,5286,7200, 2023,5795,5908,5938,5774,7546,9723,10613,9840,9307,7383,6020,6167,7501, 2024,5770,6382, , , , , , , , , , , ,