Smithland Lock & Dam
Weather Station of the U.S. Weather Service

Located in Pope County, Illinois, Smithland Lock & Dam is at an elevation of 357 feet and was established as a weather station on 01 Oct 1980.

From 1971 to 2000, the following average readings were recorded:

 - - - - - - - - - JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR Average High....... 40.8 46.5 56.8 67.5 76.3 84.6 88.7 87.2 80.7 69.5 56.7 45.3 66.7 Average Low........ 23.8 26.7 36.6 45.1 54.9 63.3 68.5 66.7 59.4 46.4 36.9 28.0 46.4 Monthly Precipitn.. 3.33 3.52 4.39 4.57 4.54 4.19 4.49 2.74 3.57 3.38 4.06 4.30 47.08 Heating Degree Days 1013 795 569 276 100 3 0 1 32 249 548 879 4465 Cooling Degree Days 0 0 2 14 118 272 421 372 183 31 1 0 1414 

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