Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
1990,1551,1471,1673,1911,2602,3190,4208,3919,3204,2490,1925,1578,2484,
1991,1456,2275,1737,1798,2500,3315,4568,4248,3441,2774,2030,2005,2683,
1992,1808,2417,2057,2163,3232,3697,4626,4579,3378,3079,2273,1690,2928,
1993,1711,2055,1918,2110,3117,3632,4843,4245,3583,3030,2412,2037,2898,
1994,2169,1936,2080,2288,3269,3678,4495,3940,3347,2987,2072,1947,2858,
1995,1812,2479,2095,2266,3388,3922,5044,4639,3782,3168,2473,2073,3095,
1996,1932,2325,2120,2352,2924,3815,4847,4740,3590,3186,2301,1819,2996,
1997,1311,2475,2050,2146,2978,3692,4572,4555,3500,3127,2459,2043,2909,
1998,1971,2426,2097,2209,2820,3652,5044,4710,3775,3056,2427,2083,3023,
1999,2081,1980,2036,2126,2729,3810,5121,4716,3717,3149,2552,2048,3005,
2000,2045,2374,2150,2340,3141,3945,5047,4729,3608,3127,2374,2063,3079,
2001,2149,2282,2081,2267,3374,3936,4890,4682,3656,3089,2525,1993,3077,
2002,2145,2412,2190,2282,3182,4132,5150,5047,3760,3314,2631,2254,3208,
2003,2264,2697,2379,2398,3360,4310,5329,5227,3893,3587,2686,2584,3393,
2004,2335,2742,2580,2792,3620,4661,5990,5244,4707,4130,3478,3083,3780,
2005,3109,3453,3083,3041,3827,4827,6281,5986,4945,4176,3678,3246,4138,
2006,3113,3352,3193,3113,3920,5235,6580,6152,5348,4738,3691,3455,4324,
2007,3603,3662,3410,3469,4398,5288,6428,6112,4796,4197,3458,3081,4325,
2008,2970,3066,2839,2555,3195,4342,5679,5350,4058,3550,2897,2445,3579,
2009,2935,3123,2523,2482,3356,4255,5748,4977,4133,3308,2694,2410,3495,
2010,2702,2756,2472,2455,3162,4149,5611,5294,4079,3391,2522,2399,3416,
2011,2646,2703,2423,2199,2898,3950,5675,4801,3957,3172,,,3392,
2012,2593,2678,2390,2355,2876,4341,5606,4658,3927,3154,2557,2460,3300,
2013,2578,2756,2526,2378,3319,4432,6008,5437,3614,3330,2635,2538,3462,
2014,3079,2753,2668,2532,3062,4815,6230,5466,4134,3625,2646,2607,3635,
2015,3016,3287,2907,2780,3828,5024,6110,5507,4522,3829,2914,2924,3887,
2016,3300,3375,2925,2968,4066,5408,6620,5942,4845,3885,3278,2917,4127,
2017,3139,3236,3024,3034,4101,5597,7235,6574,5016,4112,3135,3190,4283,
2018,3772,3383,3013,3167,4512,5884,7214,6467,5281,4263,3156,3463,4465,
2019,3973,3150,3265,2966,4162,5941,7626,6730,5308,4393,3684,3544,4562,
2020,3914,3776,2692,2022,4239,6103,7256,7201,5617,4415,3238,3587,4505,
2021,3798,3693,2816,3078,4476,6647,7885,7018,5569,4516,2778,3095,4614,
2022,3620,4194,3584,3153,4241,6022,7512,7118,5754,4985,3493,3545,4768,
2023,4176,4256,3714,3251,4777,6626,8207,7284,6225,5227,4069,3606,5118,
2024,3552,4220,3814, , , , , , , , , , ,