Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 1990,495,508,675,842,920,1204,1595,1720,1130,849,650,471,925, 1991,463,572,705,876,1000,1221,1755,2214,1398,985,752,660,1054, 1992,613,681,730,1055,1127,1314,2026,2559,1373,991,774,585,1158, 1993,561,596,669,870,1016,1208,1823,1826,1258,984,714,617,1015, 1994,616,607,752,873,950,1110,1613,1496,1181,918,705,584,953, 1995,603,639,747,935,1000,1098,1531,1550,1220,962,784,618,974, 1996,583,639,740,930,981,1112,1529,1576,1147,906,665,526,945, 1997,578,634,683,886,1010,1167,1498,1528,1126,934,749,639,953, 1998,588,693,819,956,1029,1119,1411,1400,1122,782,704,600,935, 1999,627,,851,963,1016,1131,1524,1540,1217,974,802,681,, 2000,667,751,870,946,1025,1126,1503,1511,1179,960,779,675,999, 2001,679,712,819,876,1039,1132,1487,1517,1049,835,766,598,959, 2002,630,707,775,946,892,1061,1430,1472,1187,944,813,694,963, 2003,681,735,775,876,922,1052,1387,1367,1063,925,755,667,934, 2004,637,740,825,913,946,1099,1418,1350,1221,1054,818,684,975, 2005,651,753,843,912,1036,1128,1432,1424,1084,912,843,700,977, 2006,688,773,875,986,1119,1194,1531,1555,1225,1006,836,726,1043, 2007,716,752,851,984,1107,1398,1674,1792,1318,1154,1027,766,1128, 2008,707,772,911,938,1123,1141,1508,1613,1192,986,848,632,1031, 2009,687,718,783,863,1063,1122,1537,1573,1200,989,848,714,1008, 2010,709,793,916,1014,1117,1160,1739,1720,1282,1027,853,723,1088, 2011,729,826,913,979,1164,1292,1768,1756,1267,1006,861,764,1110, 2012,722,841,911,1025,1210,1262,1775,1944,1332,1126,,785,1156, 2013,779,899,990,1028,1285,1265,1813,1991,1295,1083,899,806,1178, 2014,825,854,936,1038,1224,1241,1951,1964,1307,1101,941,786,1181, 2015,757,836,905,1007,1251,1277,1813,1689,1227,1026,865,,, 2016,718,818,901,1016,1131,1262,1739,1678,1326,1060,918,712,1107, 2017,702,750,855,962,1139,1313,1815,1943,1319,1044,865,705,1118, 2018,734,768,854,912,1076,1335,1746,1702,1282,1063,917,766,1096, 2019,769,746,871,998,1181,1304,1837,1885,1331,1057,911,783,1139, 2020,746,860,810,675,822,848,948,882,859,855,749,613,806, 2021,660,672,727,779,881,919,954,936,934,863,862,990,848, 2022,653,796,828,950,1143,1263,1599,1614,1190,1090,868,741,1061, 2023,776,830,895,989,1181,1357,1678,1624,1343,1088,932,786,1123, 2024,745,834,922,1072,1213,1430,1840,1773,1371, , , , ,