Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
1990,286,301,423,485,658,927,1010,959,826,650,384,256,599,
1991,238,339,432,463,675,999,1285,1270,991,790,391,321,685,
1992,309,387,485,530,780,990,1291,1345,1094,895,454,302,742,
1993,277,340,476,507,780,1035,1338,1476,1124,814,446,360,751,
1994,350,371,514,552,845,1044,1350,1489,1146,736,440,353,769,
1995,340,390,471,548,817,,,1264,1034,797,480,,,
1996,237,,468,569,724,984,,1335,867,726,401,310,,
1997,246,370,422,471,669,994,1263,1347,928,746,463,333,688,
1998,302,421,479,538,752,1004,1249,,995,674,428,324,,
1999,332,372,491,553,724,966,1236,1246,940,691,467,347,697,
2000,336,404,503,567,777,1106,1307,989,853,680,435,314,689,
2001,329,362,481,510,832,1120,1313,1222,985,649,473,316,716,
2002,315,392,436,520,792,1078,1331,1232,972,743,454,368,719,
2003,343,386,438,522,764,1068,1220,1253,1008,712,388,323,702,
2004,286,396,497,581,803,1063,1165,1073,883,676,448,330,683,
2005,304,411,454,499,749,958,1113,1032,816,603,385,276,633,
2006,325,362,451,503,692,912,1014,937,825,632,367,277,608,
2007,271,332,440,496,608,891,1023,1006,820,602,377,265,594,
2008,232,201,392,389,611,793,893,885,719,563,400,248,527,
2009,233,334,371,430,678,869,971,928,779,535,371,245,562,
2010,248,338,413,442,654,875,1014,1005,809,611,344,246,583,
2011,252,319,403,424,602,777,1024,984,856,573,347,287,571,
2012,262,311,382,415,583,807,964,994,889,547,351,259,564,
2013,235,296,358,390,636,820,959,786,721,509,336,250,525,
2014,263,199,333,416,619,813,931,902,730,539,322,278,529,
2015,276,343,444,457,710,859,954,874,776,598,370,263,577,
2016,279,371,433,511,729,888,1009,943,828,605,446,258,608,
2017,217,286,405,449,671,867,1024,748,654,547,368,260,541,
2018,273,291,399,448,710,969,1166,1057,1020,871,,291,660,
2019,291,243,394,386,675,844,977,944,745,551,381,306,561,
2020,279,305,342,258,510,765,839,840,989,597,372,328,535,
2021,335,273,449,509,774,1035,949,921,870,628,434,283,622,
2022,249,357,433,437,722,931,1049,980,882,656,353,235,607,
2023,285,350, ,457,807,1039,1180,964,897,609,434,314,667,
2024,262,336,418, , , , , , , , , , ,