Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 1990,1416,1578,1703,2338,2437,3014,3145,2857,2673,2527,1803,1331,2238, 1991,1411,1503,1595,1726,2228,2796,2978,2748,2504,2578,1724,1608,2121, 1992,1600,1601,1854,1973,2584,2729,3015,2649,2554,2758,1874,1734,2253, 1993,1663,1633,1764,2046,2748,3054,3563,3376,2965,3220,2189,2048,2529, 1994,1863,1714,1827,2329,2669,3307,3368,3139,2885,2911,2362,2083,2543, 1995,2090,2129,2198,2531,3067,3479,3748,3643,3470,3427,2580,2236,2883, 1996,2203,2246,2328,2641,3156,3541,3610,3496,3145,3232,2572,2168,2862, 1997,2202,2440,2434,2671,3269,3675,4338,3970,3567,3529,2843,2597,3128, 1998,2365,2455,2556,2858,3198,3742,4016,3831,3509,3451,2662,2517,3097, 1999,2449,2320,2477,2841,3135,3509,3806,3735,3526,3495,2763,2609,3055, 2000,2368,2452,2466,2835,3430,3860,3963,3637,3379,3483,2663,2741,3106, 2001,2624,2593,2747,3074,3668,3935,4126,3809,3547,3582,2795,2581,3257, 2002,2506,2531,2515,3024,3539,3860,3930,3809,3523,3570,2891,2656,3196, 2003,2629,2557,2598,2880,3142,3853,3908,3646,3491,3595,2768,2650,3143, 2004,2437,2486,2637,3062,3346,3755,3889,3758,3523,3479,2837,2673,3157, 2005,2616,2638,2722,2945,3454,3746,3941,3754,3354,3391,2825,2454,3153, 2006,2546,2632,2586,2948,3497,3892,4166,3878,3718,3628,2966,2731,3266, 2007,2586,2579,2720,3068,3450,3733,3848,3705,3584,3421,2903,2572,3181, 2008,2382,2414,2383,2607,3113,3256,3530,3478,3100,3050,2588,2239,2845, 2009,2294,2293,2232,2611,3269,3357,3664,3454,3341,2978,2493,2251,2853, 2010,2188,2279,2357,2526,2888,3323,3597,3362,3131,2931,2285,2103,2748, 2011,2108,2082,2059,2318,2701,3235,3536,3372,3037,2835,2259,2115,2638, 2012,2038,2060,2036,2466,2879,3274,3351,3138,2948,2809,2339,2152,2624, 2013,1937,2126,2312,2581,3066,3322,3402,3134,2985,2950,2464,2177,2705, 2014,2315,2146,2384,2630,3268,3462,3552,3352,3256,,,2276,, 2015,2289,2387,2590,2831,3323,3671,3678,3389,3297,3208,2616,2338,2968, 2016,2349,2424,2553,3064,3446,3890,3737,3530,3361,3374,2972,2370,3089, 2017,2045,2389,2596,3002,3661,3933,4130,4049,3595,3556,2969,2689,3218, 2018,2531,2559,2790,3173,3811,4107,4305,3959,3860,3756,3139,2801,3399, 2019,2737,2391,2808,3138,3735,4351,4521,4325,3970,3835,3280,2904,3500, 2020,2726,2866,2664,3007,4226,4238,4849,4539,4127,3945,3172,3019,3615, 2021,2928,2600,2879,3382,4133,4693,4522,4129,4079,3896,3296,2857,3616, 2022,2600,2753,2909,3135,3699,4182,4363,4218,4027,4016,3028,2647,3465, 2023,2758,2712,2648,3121,3621,4379,4542,4221,4169,4074,3296,2824,3531, 2024,2392,2799, , , , , , , , , , , ,