YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,2496,2624,3066,3634,4690,5240,6207,5783,5000,4251,3321,2507,4077
1991,2297,3348,3162,3577,4610,5471,6619,6421,5380,5050,3547,3267,4403
1992,3031,3646,4010,4387,5993,6101,7002,6944,5513,5533,3952,3067,4951
1993,2982,3517,3519,4273,5980,6223,7859,7414,6467,6011,4503,3948,5237
1994,3829,3578,4123,4864,5671,6777,8655,7554,6794,6386,4194,3872,5539
1995,3778,4423,4261,4877,6195,7123,8691,7872,6407,6226,4742,3822,5701
1996,3439,4303,4426,4875,6039,7145,8813,8317,6742,6142,4629,3578,5704
1997,2639,4375,4173
1998,3847,4387,4449,5069,6114,7371,9192,8741,7393,6471,5280,4323,6053
1999,4188,4124,4600,5175,6470,7609,9439,8705,7427,6684,5397,4444,6189
2000,4049,4745,4867,5558,6421,8093,9626,8770,7312,6569,5035,4520,6297
2001,4287,4620,4986,5518,7413,8320,9668,9184,7346,6919,5660,4506,6536
2002,4437,4901,4877,5531,7317,8579,10027,9734,7816,7129,5780,5079,6767
2003,4794,5263,5225,5685,7526,8941,10327,9864,7962,7529,5766,5141,7002
2004,4407,5113,5574,6359,7718,9105,10729,9403,8523,7671,6122,5558,7190
2005,5252,5870,6004,6407,7884,9076,11052,10093,8337,7600,6238,5464,7440
2006,5178,5720,5728,6227,7604,9225,11022,10048,8648,8045,6555,5802,7484
2007,5666,5950,6297,6790,8403,9671,10910,10052,8179,7847,6636,5743,7679
2008,4998,5403,5519,5934,7079,8105,,9580,7588,6826,5709,4821
2009,4893,5469,5101,5717,7453,8412,10434,9389,7850