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St Helena - Weather
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Weather Station of the U.S. Weather Service |
Located in St Helena in Napa County, California, St Helena is at an elevation of 225 feet and was established as a weather station on 01 Jan 1931.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....... 58.0 62.5 66.3 73.0 79.2 85.5 89.3 88.3 85.6 77.7 65.1 58.4 74.1 Average Low........ 37.8 40.3 41.8 44.2 48.0 52.1 53.9 53.6 51.6 47.2 41.6 36.7 45.7 Monthly Precipitn.. 7.46 7.10 5.31 1.74 .68 .17 .04 .08 .41 1.84 4.83 5.22 34.88 Heating Degree Days 531 381 343 216 115 21 5 5 26 116 352 541 2652 Cooling Degree Days 0 0 3 23 72 134 210 190 134 37 3 0 806
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St. Helena California
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