Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
2011,,14322,14609,15337,15580,15685,13355,15406,15409,15354,14626,14380,,
2012,13710,14700,14956,15625,16055,15944,15618,16582,16005,15862,15010,14474,15378,
2013,13194,14915,15671,16633,17649,18723,17726,16970,16571,16329,15430,14579,16199,
2014,13999,14830,15996,16535,17269,16847,16169,16542,16723,16443,14947,15093,15949,
2015,14695,15330,13914,13085,13426,13295,12927,13483,13977,14881,14769,14381,14013,
2016,14455,15005,15830,17249,17570,15345,15088,16522,16983,16603,15622,14346,15885,
2017,12927,14737,16064,16968,17664,17660,17074,16883,15720,14482,11742,12967,15407,
2018,13951,15054,16501,17347,18298,18236,17158,17776,17447,17337,17156,16244,16875,
2019,15790,16245,17540,18525,18789,19668,19183,20544,19754,18564,17328,17067,18250,
2020,16110,17239,15790,14248,17384,18490,18361,19973,20404,19771,17380,16874,17669,
2021,16717,17506,19915,21209,20807,20103,19814,19867,20352,20438,18442,18338,19459,
2022,16949,18469,19344,19780,20150,20146,19936,20129,19732,19512,17910,16729,19065,
2023,16547,17987,18394,21418,22857,22087,20654,20565, , , ,16570,19664,
2024,14797,16952,17667, , , , , , , , , , ,