Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 1990,1576,1703,2102,2267,2408,2589,2688,2841,2492,2420,2071,1614,2234, 1991,1774,2135,2207,2568,2682,2845,2804,2988,2717,2569,1945,1886,2428, 1992,1981,2159,2423,2593,2558,2782,2809,2764,2690,2493,1842,1667,2404, 1993,1152,1445,2202,2488,2573,2938,2978,3143,2974,2728,2200,1817,2391, 1994,1932,1921,2396,2495,2640,2944,3106,3278,2881,2649,1844,1513,2470, 1995,1751,1865,2083,2156,2323,2542,2646,2684,2440,2289,2007,1359,2179, 1996,1275,1688,1936,2024,1959,2279,2366,2432,2339,2192,1766,1294,1963, 1997,1439,1745,1877,2050,2209,2573,2446,2546,2293,2116,1532,1308,2011, 1998,1328,1582,1703,1959,2092,2345,2416,2487,2258,2203,1704,1412,1957, 1999,1512,1500,1782,2084,2195,2492,2563,2575,2452,2282,1961,1617,2085, 2000,1515,1739,1872,2113,2169,2426,2525,2597,2458,2350,1779,,, 2001,1554,1778,1789,,2124,2282,2101,2426,2233,2137,1836,1306,, 2002,1363,1460,1778,2110,2248,2393,2575,2679,2496,2619,2095,1851,2139, 2003,1788,1944,1982,2209,2304,2586,2765,2586,2441,2479,1863,1781,2227, 2004,1647,1846,2203,2367,2355,2686,2608,2701,2628,2296,2111,1785,2269, 2005,1654,2081,2271,2383,2479,2796,2775,2910,2501,2256,2017,1555,2307, 2006,1684,1886,2069,2142,2366,2526,2449,2686,2353,2424,2143,1758,2207, 2007,1937,2080,2279,2411,2574,2588,2574,2825,2560,2633,2218,1628,2359, 2008,1538,1550,1963,2252,2295,2326,2452,2368,2423,2353,1883,1924,2111, 2009,1785,1742,1928,2282,2424,2934,2943,2927,,2570,2229,1907,, 2010,1836,2186,2487,2559,2603,3096,2928,3228,3101,3032,2307,1967,2611, 2011,2090,2173,2257,2536,2605,2814,2943,3099,2931,2531,2155,,2530, 2012,1855,1960,1952,2264,2283,2535,2564,2588,2517,2184,1853,1524,2173, 2013,1509,1728,1903,2033,2139,2335,2383,2536,2360,2071,1834,1489,2027, 2014,1644,1763,1957,2107,2204,2499,2585,2507,2488,2292,1857,1652,2130, 2015,1789,2037,2173,2294,2400,2708,2845,2756,2629,2390,1972,1599,2299, 2016,1789,1997,2185,2507,2474,2802,2792,2970,2804,2544,2212,1597,2389, 2017,1601,1975,2169,2298,2414,2852,2987,3292,2896,2684,2255,1856,2440, 2018,2050,2209,2280,2583,2664,3062,,,,,,,, 2019, , , ,2904,2846,3343,3190,3314,3043,2780,2231,1960,2846, 2020,1890,2266,2382,1786,2514,3170,3495,3469,3556,3164,2509,2157,2696, 2021,2466,2506, , , , ,3628,3566,3337,3048,2622,2084,2977, 2022,2224,2499,2555,2781,2992,3322,3241,3372,3138,3028,2424,1896,2789, 2023,2288,2296,2470,2858,3155,3517,3535,3755,3401,3238,2777,2204,2958, 2024,2243,2751, , , , , , , , , , , ,