Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 2004,,,,,908,964,938,908,1025,891,782,710,, 2005,648,755,823,925,930,997,962,955,1046,915,984,816,896, 2006,812,837,822,917,936,928,953,949,997,1049,1037,768,917, 2007,901,758,832,896,955,970,961,949,1071,1037,1066,718,926, 2008,650,709,742,904,915,886,887,877,935,1057,883,749,850, 2009,782,700,764,900,965,919,964,954,1094,1212,886,776,910, 2010,739,869,818,921,907,975,994,939,1117,1103,770,749,908, 2011,835,742,756,901,945,973,943,946,1138,1240,886,792,925, 2012,887,926,825,929,952,928,926,1011,1076,1146,777,,934, 2013,695,750,911,1001,990,975,935,961,1160,1175,885,827,939, 2014,769,758,979,922,942,922,921,940,1105,1207,748,690,909, 2015,742,896,892,882,909,,918,958,992,1089,813,723,, 2016,656,789,855,932,911,977,951,941,1010,1120,798,670,884, 2017,572,720,998,936,978,1023,989,1032,989,1164,838,694,911, 2018,678,712,929,936,951,1004,976,999,1040,1159,891,745,918, 2019,744,740,916,977,1039,1000,958,975,1150,1163,919,736,943, 2020,857,847,873,936,1073,1039,1031,1046,1208,1266,866,739,982, 2021,817,926,994,1035,1058,1111,1047,1040,1152,1260,970,835,1020, 2022,739,920,962,991,914,949,993,1069,1235,1263,823,729,966, 2023,827,865,1001,1034,1136,1137,1120,1095,1223,1441,972,791,1053, 2024,711,847, , , , , , , , , , , ,