[JVY] Jefferson [2019-]
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The following tables present IEM computed monthly data summaries based on daily data provided by or computed for the IEM. A download interface exists for the daily summary information. The climatology is provided by the nearest NCEI climate station (USC00154955) within the current 1991-2020 dataset.

To load shown data into Microsoft Excel, highlight the table information with your mouse and then copy/paste into Excel.

Precipitation Totals [inch]

YearJanFebMarAprMayJunJulAugSepOctNovDec
20192.917.203.915.934.8512.173.562.370.043.813.362.38
20203.491.734.152.902.884.322.080.461.301.241.70M
2021MMMMMMM3.973.454.301.322.61
20223.065.352.282.852.492.004.462.171.681.101.762.48
20234.472.165.742.851.931.131.13MMMMM
2024M0.312.753.695.580.675.012.076.440.395.914.02
20252.424.064.367.613.993.595.630.20MMMM
NCEI Climatology3.483.644.544.794.814.433.533.273.933.493.754.48

Average Wind Speed [MPH]

YearJanFebMarAprMayJunJulAugSepOctNovDec
20196.35.25.75.65.14.43.83.43.54.14.34.6
20204.86.06.25.44.04.12.62.42.73.45.44.3
20214.35.75.54.93.94.13.12.53.33.54.05.1
20225.76.16.85.84.73.32.93.03.04.54.34.5
20235.46.46.55.53.83.73.8MMMMM
2024M7.76.77.64.94.54.43.83.23.86.36.4
20256.46.67.86.75.14.13.53.1MMMM
NCEI ClimatologyMMMMMMMMMMMM

Average Daily High Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
201939.0048.2952.5770.0877.8982.6689.5587.3489.2771.8950.5550.50
202047.5547.5061.0463.9573.0285.1988.4083.5177.0365.0457.9644.77
202141.2638.6562.4966.9275.2185.5086.4187.7480.4271.6653.7256.45
202239.2647.1160.0564.1078.5786.4287.2885.8879.8269.1056.4244.43
202348.0355.5356.9168.1875.6682.7086.70MMMMM
2024M60.6062.0270.5279.6187.3763.76-40.0083.3774.1559.9048.20
202536.5346.7263.1869.2073.7586.5490.9987.80MMMM
NCEI Climatology43.3047.7156.6168.9176.8985.4088.9088.0181.8070.3056.8047.10

Average Daily Low Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
201930.3036.9732.8845.6058.3562.8968.1865.0861.1246.3830.0631.78
202031.4630.6940.0943.4852.2262.1769.5466.8460.2846.5041.5228.55
202128.0623.0935.9342.1149.8664.2464.9168.0658.1651.4531.7634.90
202222.0726.4135.6042.3856.3361.8868.2965.1056.3039.6633.9828.57
202332.1732.7134.6141.4851.9759.4267.40MMMMM
2024M35.7037.7548.7459.7563.8414.41-40.0061.4045.4742.2632.23
202518.3027.1837.2847.0054.5966.5071.2566.04MMMM
NCEI Climatology25.9029.3236.6047.1958.4065.8169.7068.8061.5049.7038.0130.80

Average Daily Temperature (high+low)/2 [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
201934.6542.6342.7357.8468.1272.7878.8776.2175.2059.1440.3041.14
202039.5139.1050.5753.7262.6273.6878.9775.1768.6555.7749.7436.66
202134.6630.8749.2154.5162.5374.8775.6677.9069.2961.5542.7445.67
202230.6636.7647.8253.2467.4574.1577.7875.4968.0654.3845.2036.50
202340.1044.1245.7654.8363.8271.0677.05MMMMM
2024M48.1549.8859.6369.6875.6039.08-40.0072.3959.8151.0840.22
202527.4136.9550.2358.1064.1776.5281.1276.92MMMM
NCEI Climatology34.6038.5146.6058.0567.6575.6079.3078.4071.6560.0047.4038.95

Average Relative Humidity [%]

This value is computed via a simple average of available observations weighted by the duration between observations.

YearJanFebMarAprMayJunJulAugSepOctNovDec
201974.2%76.1%67.9%69.1%74.6%75.5%73.1%73.5%67.5%74.1%77.9%81.0%
202076.7%77.0%72.5%67.7%75.8%70.1%77.2%81.1%81.6%77.2%73.7%79.3%
202181.1%77.8%66.8%69.8%71.8%76.2%79.6%80.3%81.8%85.4%77.2%81.5%
202276.1%76.2%67.8%70.9%76.8%71.9%81.4%81.6%80.3%68.8%75.7%83.0%
202387.6%72.9%73.5%69.5%73.4%76.0%82.6%MMMMM
2024M66.1%67.4%69.7%80.2%73.9%80.9%100.0%77.8%73.4%78.6%76.1%
202570.6%73.5%64.7%71.9%78.2%82.0%84.2%80.4%MMMM

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