Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
2006,,,,,,,,,,5772,4442,3927,,
2007,4099,4044,3977,4301,6162,7598,,8344,6136,5440,4403,3716,,
2008,3417,3629,3438,3345,4718,6503,8474,7835,5738,4890,3961,3158,4926,
2009,3462,3760,3251,3268,4507,6871,9050,7782,6091,4691,3666,3201,4967,
2010,3335,3438,3253,3463,4610,6367,9066,8568,5957,4988,3422,3080,4962,
2011,3227,3320,3101,2678,,6535,8163,7363,,4706,3347,3221,4431,
2012,3292,3381,3124,3344,4807,6700,9059,7350,5786,4659,,,5044,
2013,3118,3474,3315,3413,5141,6937,9092,7983,5311,4816,3561,3190,4946,
2014,3709,3199,3398,3473,5168,7271,9371,8059,5939,5216,3483,3299,5132,
2015,3658,3924,3875,3907,5726,7987,9332,8289,6902,5512,3921,3654,5557,
2016,4033,4067,3791,4237,6115,8589,10221,8420,6685,5457,4439,3545,5800,
2017,3559,3735,3718,3970,6282,8323,10640,9486,7100,5749,4279,4037,5906,
2018,4468,3963,3881,5319,6168,8724,10616,9279,7408,5983,4461,4148,6202,
2019,4857,3703,4026,3932,5983,9309,11181,9834,7456,5985,4757,4414,6286,
2020,4584,4510,3620,3287,7144,9830,11616,10653,8464,6314,4577,4694,6608,
2021,4778,4395,3587,4370,6782,10504,11574,9984,7869,6331,3574,3639,6449,
2022,4209,4696,4461,4248,5589,9182,11200,10070,8039,7127,4575,4233,6469,
2023,4805,4874,4396,4403,7481,11932,13640,10293,8800,7286,5323,4355,7299,
2024,4153,4845,4660, , , , , , , , , , ,