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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 (USC00485417) 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
20040.000.000.000.00MM0.000.000.000.000.000.00
20050.000.000.000.000.000.000.00MMMMM
20060.000.00MMMMMMMMMM
NCEI Climatology0.400.530.781.381.961.531.601.081.901.030.470.45

Average Wind Speed [MPH]

YearJanFebMarAprMayJunJulAugSepOctNovDec
200012.212.813.414.712.612.08.910.210.09.814.916.4
200115.713.513.013.121.810.21.81.510.529.810.516.6
200218.116.516.314.812.010.77.012.212.110.718.015.6
200321.113.517.812.011.810.88.89.811.013.116.016.4
200416.813.516.011.4MM12.911.312.513.611.516.4
200513.611.314.412.910.810.15.5MMMMM
200617.420.0MMMMMMMMMM
NCEI ClimatologyMMMMMMMMMMMM

Average Daily High Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
200021.2038.0541.6050.7160.4866.8077.9979.8864.5849.6927.6730.26
200130.9531.5537.8147.3057.20MM72.5067.5144.6043.2831.07
200229.3632.7135.1448.6057.2066.6841.9071.4760.6345.6836.2033.51
200338.3929.4037.1148.0857.6662.7881.3075.2662.5453.9434.7634.26
200431.7130.2646.6946.05MM65.8168.2361.9450.2532.1231.67
200534.9833.1036.1246.3956.2063.6971.77MMMMM
200631.7031.97MMMMMMMMMM
NCEI Climatology33.2035.5143.7050.5160.3072.9080.7079.1071.9956.4143.5034.01

Average Daily Low Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
20006.8021.7728.4030.0140.2345.6353.5459.9044.1234.6113.8714.00
200116.7914.7121.7830.4437.83MM53.6045.0935.6026.0015.22
200212.8413.6115.8028.1337.0341.0635.6048.0740.5726.9020.5418.53
200323.5813.0023.6430.3838.5642.6256.2753.3739.3233.8019.5219.11
200417.6014.4326.9528.95MM50.1848.0643.2734.0621.4019.78
200521.8218.1420.8127.5736.6644.7464.79MMMMM
200617.7815.18MMMMMMMMMM
NCEI Climatology12.2014.7921.4027.6036.1045.9152.4049.4943.0030.9022.7013.80

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

YearJanFebMarAprMayJunJulAugSepOctNovDec
200014.0029.9135.0040.3650.3556.2165.7669.8954.3542.1520.7722.13
200123.8723.1329.7938.8747.52MM63.0556.3040.1034.6423.15
200221.1023.1625.4738.3747.1153.8738.7559.7750.6036.2928.3726.02
200330.9821.2030.3739.2348.1152.7068.7864.3150.9343.8727.1426.69
200424.6522.3536.8237.50MM58.0058.1552.6042.1626.7625.73
200528.4025.6228.4636.9846.4354.2268.28MMMMM
200624.7423.58MMMMMMMMMM
NCEI Climatology22.7025.1532.5539.0548.2059.4166.5564.2957.4943.6633.1023.90

Average Relative Humidity [%]

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

YearJanFebMarAprMayJunJulAugSepOctNovDec
200068.1%57.5%54.5%47.5%48.2%49.9%38.6%37.3%45.9%61.2%60.9%63.5%
200159.1%65.4%66.8%58.3%53.1%MM42.9%41.9%57.6%55.1%55.8%
200257.2%50.7%56.5%49.2%46.6%35.0%24.1%42.8%49.9%52.8%54.0%53.2%
200352.0%61.2%55.8%52.9%50.3%57.1%34.5%47.1%46.5%43.1%61.9%49.9%
200452.1%60.1%47.4%58.6%MM57.6%47.0%59.5%67.4%80.0%64.3%
200570.1%67.8%69.5%62.8%61.0%62.7%72.6%MMMMM
200663.4%64.2%MMMMMMMMMM

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