Conowingo Dam Weather Station of the U.S. Weather Service

Located in Harford County, Maryland, Conowingo Dam is at an elevation of 40 feet and was established as a weather station on 01 Aug 1948.

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....... 39.9 43.5 53.0 64.2 74.2 82.8 87.6 86.0 78.8 67.3 55.4 44.7 64.8 Average Low........ 21.9 23.8 31.7 40.5 51.0 60.1 64.7 63.6 56.5 43.9 34.4 26.8 43.2 Monthly Precipitn.. 3.98 2.92 4.16 3.65 4.58 4.15 4.20 4.41 4.92 3.47 3.76 3.89 48.09 Heating Degree Days 1057 878 703 382 133 18 1 1 44 316 603 908 5044 Cooling Degree Days 0 0 0 1 58 211 346 305 123 24 0 0 1068 

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