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 (USC00489459) 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
20000.000.000.000.000.000.000.000.000.000.000.000.00
20010.000.000.000.000.000.000.000.000.000.000.000.00
20020.000.000.000.000.000.000.000.000.000.000.000.00
20030.000.000.000.000.000.000.000.000.000.000.000.00
20040.000.000.000.000.000.000.000.000.000.000.000.00
20050.000.000.000.000.000.000.000.000.000.00MM
NCEI Climatology0.430.410.480.761.350.810.670.720.900.760.640.53

Average Wind Speed [MPH]

YearJanFebMarAprMayJunJulAugSepOctNovDec
20008.313.515.112.812.812.09.710.412.811.411.412.8
200112.112.710.612.211.811.110.79.010.631.610.514.6
200214.414.314.114.712.411.29.212.011.910.212.713.7
200313.212.416.312.811.110.69.19.310.012.213.215.5
200413.811.413.313.712.911.29.912.015.113.111.015.0
200513.610.012.112.411.112.58.89.910.216.3MM
NCEI ClimatologyMMMMMMMMMMMM

Average Daily High Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
200028.2038.2740.4756.3764.3173.0083.9081.6167.1053.6525.5026.29
200125.1627.8840.4948.9166.8875.7983.1382.9072.6546.4043.5924.76
200224.8630.1635.1154.7763.1179.0387.2178.8469.1449.5537.2332.01
200334.0330.3941.0653.3763.5570.0388.1082.7767.8756.9431.3730.10
200426.4227.1447.4352.4363.0671.6377.4672.6065.8452.3436.6032.35
200533.4235.9141.6152.8660.9770.5683.6577.0468.2254.00MM
NCEI Climatology29.6033.5745.2954.5965.1076.9085.0982.7072.6058.1042.2029.91

Average Daily Low Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
20007.8019.9122.0632.3639.8146.7654.8155.6541.2333.5210.1010.06
20019.2910.9621.2628.3639.1045.9456.0855.0844.9333.8023.829.83
20028.959.7113.4027.5236.0447.3956.0949.5042.7326.7917.5515.10
200318.3511.8623.3931.1738.2643.2056.9455.0040.3333.0016.0716.16
200411.4810.9025.0730.1337.5544.1353.5648.9744.3035.8922.0516.78
200518.9217.5721.2226.5037.1545.7456.2051.2843.9643.70MM
NCEI Climatology8.5011.4520.7926.6034.8042.9050.1048.0039.3129.2018.409.10

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

YearJanFebMarAprMayJunJulAugSepOctNovDec
200018.0029.0931.2644.3652.0659.8869.3568.6354.1743.5817.8018.17
200117.2319.4230.8738.6452.9960.8669.6168.9958.7940.1033.7017.29
200216.9119.9424.2541.1449.5763.2171.6564.1755.9438.1727.3923.55
200326.1921.1232.2342.2750.9056.6272.5268.8954.1044.9723.7223.13
200418.9519.0236.2541.2850.3157.8865.5160.7855.0744.1129.3324.57
200526.1726.7431.4239.6849.0658.1569.9264.1656.0948.85MM
NCEI Climatology19.0522.5133.0440.5949.9559.9067.6065.3555.9543.6530.3019.50

Average Relative Humidity [%]

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

YearJanFebMarAprMayJunJulAugSepOctNovDec
200072.7%75.2%64.9%46.6%48.8%39.9%32.2%42.5%47.0%61.4%77.2%79.1%
200178.4%82.9%76.7%62.4%45.2%34.4%35.9%39.3%40.4%55.0%71.3%82.6%
200279.2%69.5%72.0%53.3%42.6%35.7%39.6%42.2%50.0%57.4%71.7%77.3%
200379.9%79.3%69.3%51.2%51.8%55.6%29.7%43.9%47.3%45.9%79.1%73.6%
200475.0%81.5%58.7%58.9%46.5%47.1%42.4%44.6%55.3%71.3%84.1%81.4%
200590.7%81.5%74.3%58.2%61.5%51.1%36.2%51.3%48.2%72.0%MM

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