Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg., 2017,,,,,,,,2546,2497,2397,2008,1788,, 2018,1788,1842,1881,2308,2392,2525,2717,2517,2479,2373,2064,1832,2226, 2019,1820,1771,2049,2274,2391,2505,2604,2493,2461,2310,2064,1849,2216, 2020,1805,1946,1981,1967,2352,2542,2630,2512,2541,2461,2049,2060,2237, 2021,2046,2008,2264,2508,2626,2741,2775,2629,2638,2549,2273,2094,2429, 2022,1843,2036,2223,2400,2478,2683,2794,2937,2840,2744,2297,2137,2451, 2023,2134,2124,2242,2559,2791,2996,3016,2935,2762,2837,2437,2236,2589, 2024,1917,2238,2347, , , , , , , , , , ,