Annual Soil Swing, and Phase Constants for U.S. Cities* Note: The 'Phase Constant' represents the coldest day of the year.
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City | Tm (oF) | As(oF) | To(Days)
Coldest Day |
T1(Days)
Warmest Day |
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Birmingham |
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Montgomery |
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Phoenix |
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Tucson |
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Little Rock |
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Los Angeles |
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Merced |
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San Diego |
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Colorado Springs |
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Denver |
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Grand Junction |
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Washington |
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Appalachio. |
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Jacksonville |
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Atlanta |
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Augusta |
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Macon |
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Des Moines |
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Sioux City |
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Boise |
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Idaho Falls |
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Chicago |
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E. St. Louis |
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Urbana |
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Ft. Wayne |
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Indianapolis |
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South Bend |
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Dodge City |
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Topeka |
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Louisville |
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City | Tm (oF) | As(oF) | To(Days)
Coldest Day |
T1(Days)
Warmest Day |
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Lake Charles |
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New Orleans |
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Shreveport |
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Portland |
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Plymouth |
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Battle Creek |
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Detroit |
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Sau St. Marie |
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Duluth |
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Int. Fals |
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Minneapolis |
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Biloxi |
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Columbus |
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Jackson |
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Columbia |
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Kansas City |
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Springfield |
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Billings |
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Great Falls |
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Missoula |
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Grand Junction |
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Lincoln |
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N. Platte |
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Ely |
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Las Vegas |
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Winnemucca |
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Trenton |
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Albuquerque |
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Roswell |
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Albany |
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Binghamton |
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Niagra Falls |
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Syracuse |
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City | Tm (oF) | As(oF) | To(Days)
Coldest Day |
T1(Days)
Warmest Day |
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Lake Charles |
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New Orleans |
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Shreveport |
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Portland |
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Plymouth |
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Battle Creek |
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Detroit |
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Sau St. Marie |
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Duluth |
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Int. Fals |
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Minneapolis |
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Biloxi |
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Columbus |
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Jackson |
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Columbia |
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Kansas City |
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Springfield |
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Billings |
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Great Falls |
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Missoula |
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Grand Junction |
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Lincoln |
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N. Platte |
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Ely |
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Las Vegas |
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Winnemucca |
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Trenton |
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Albuquerque |
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Roswell |
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Albany |
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Binghamton |
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Niagra Falls |
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Syracuse |
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*Adapted from Closed-Loop/Ground-Source Heat Pump Systems Installation Guide. NRECA Research Project 86-1. Oklahoma State University. 1988. and Perry, Robert H. and Chilton, Cecil H. Chemical Engineer's Handbook. 5th Ed. New York, McGraw Hill Book Company, 1973. |