Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 2018,,,,,,,,,,,,,, 2019,17744,17345,21521,21797,22713,24773,25677,24888,23329,22506,20759,19502,21879, 2020,17749,19121,18561,14788,19406,23513,24935,25089,24564,23166,20242,19022,20846, 2021,18992,18877,23095,24110,26116,28321,29718,28811,25648,25182,24400,21799,24589, 2022,19018,22041,22991,24062,25656,27330,26894,26834,25728,24812,22936,19905,24017, 2023,19391,20697,22543,23927,25239,26979,26861,24450,24344,24365,22722,20392,23493, 2024,16138,16784,22680, , , , , , , , , , ,