date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201304
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1942 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1943 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1944 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1945 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1946 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1947 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1949 0.00 0.00 8.00 262.50 665.95 c 979.14 a 1157.00 1079.00 538.50 404.00 62.50 0.50 5157.08
1950 0.00 0.00 0.00 55.50 466.00 799.00 888.00 831.00 640.50 414.00 20.50 f 0.00 4094.00
1951 0.00 0.00 0.00 a 110.00 620.50 673.00 925.50 822.00 493.00 299.50 12.50 6.50 3962.50
1952 0.00 0.00 3.10 a 312.50 501.00 831.00 967.50 861.50 650.50 186.50 90.00 b 0.00 4403.60
1953 0.00 b 0.00 a 31.00 88.50 532.17 a 864.83 a 939.00 958.50 622.50 512.50 113.50 0.00 a 4662.49
1954 0.00 6.00 2.58 a 253.97 a 396.50 882.00 982.00 875.50 602.68 b 253.50 74.48 a 0.00 4329.21
1955 0.00 0.00 23.52 b 391.00 687.17 a 776.38 a 1101.00 1031.27 a 633.50 329.50 2.50 0.00 4975.83
1956 0.00 0.00 0.00 88.50 524.50 945.50 849.50 888.00 515.50 488.00 72.86 b 0.00 4372.36
1957 0.00 0.00 4.50 290.50 493.50 747.50 1060.50 872.00 542.50 249.50 30.50 0.00 a 4291.00
1958 0.00 15.00 12.50 203.57 b 592.00 657.50 856.50 884.00 615.50 379.50 65.50 0.00 a 4281.57
1959 0.00 0.00 20.31 b 213.00 626.20 a 859.50 962.00 1010.00 625.50 137.00 8.50 4.50 4466.51
1960 0.00 0.00 b 10.00 232.50 518.50 726.50 959.00 947.00 637.00 324.00 31.50 3.50 4389.50
1961 0.00 2.50 31.50 89.00 460.00 816.00 908.00 952.50 596.50 355.50 31.50 2.50 4245.50
1962 0.00 0.00 2.00 216.50 643.00 766.00 856.00 869.00 529.00 399.50 41.00 45.50 4367.50
1963 0.00 0.00 99.00 260.50 507.50 881.50 1000.00 887.00 687.00 583.50 74.00 0.00 4980.00
1964 0.00 3.50 4.00 269.00 648.33 b 854.00 1087.50 846.50 598.50 314.50 152.00 0.00 4777.83
1965 0.00 0.00 0.00 126.00 649.00 805.00 926.00 848.50 391.00 355.98 a 45.00 0.00 4146.48
1966 0.00 4.50 81.00 110.50 422.63 a 842.50 1067.00 825.63 a 582.50 275.00 12.00 0.00 4223.27
1967 0.00 0.00 48.50 201.50 419.00 783.00 874.00 814.50 577.00 266.00 16.00 0.00 3999.50
1968 0.00 0.00 171.50 309.83 a 448.00 823.00 922.50 910.50 587.00 350.50 22.50 4.50 4549.83
1969 0.00 0.00 0.00 a 258.50 626.00 612.00 949.50 960.00 620.50 221.50 58.00 0.00 4306.00
1970 0.00 0.00 0.00 200.50 587.50 875.00 994.50 944.50 593.00 272.50 5.50 1.00 4474.00
1971 0.00 0.00 13.50 251.00 468.50 926.50 856.50 850.50 620.00 371.50 23.00 0.00 4381.00
1972 0.00 0.00 3.50 126.00 645.00 756.50 861.50 883.00 532.50 193.50 15.50 0.00 4017.00
1973 0.00 0.00 68.00 153.50 424.00 827.50 917.50 934.50 524.00 400.00 24.00 0.00 4273.00
1974 0.00 0.00 6.00 221.00 429.00 730.50 1054.50 781.20 a 487.50 295.00 46.00 0.00 4050.70
1975 0.00 0.00 0.00 85.00 616.00 784.00 1012.00 875.00 478.50 355.00 123.50 0.00 4329.00
1976 0.00 11.50 56.50 299.50 501.00 838.00 968.50 835.50 500.00 192.00 15.00 0.00 4217.50
1977 0.00 0.00 a 80.00 422.50 810.50 822.50 1040.00 757.00 592.00 230.00 67.50 0.00 4822.00
1978 0.00 b 0.00 a 40.00 138.50 635.50 a 794.50 902.00 892.00 766.00 320.50 95.00 0.00 4584.00
1979 0.00 0.00 0.00 163.00 456.00 795.50 941.00 826.50 633.50 220.50 22.50 0.00 c 4058.50
1980 0.00 0.00 4.00 267.50 612.00 794.50 1014.00 858.00 577.00 159.02 d 24.50 0.00 4310.52
1981 0.00 22.81 a 67.50 266.50 471.00 750.00 916.00 823.50 521.00 187.60 b 66.00 0.00 4091.92
1982 0.00 0.00 9.00 153.50 632.50 628.00 976.00 849.00 539.50 244.50 0.00 z 18.00 4050.00
1983 0.00 0.00 34.00 125.50 462.00 812.50 1099.00 1051.50 610.34 a 240.00 59.00 0.00 4493.84
1984 0.00 0.00 0.00 164.50 459.00 810.50 896.00 955.00 485.50 308.00 34.00 0.00 4112.50
1985 0.00 0.00 36.50 371.00 708.00 722.50 954.50 775.50 587.50 197.00 5.36 b 0.00 4357.86
1986 0.00 0.00 76.00 268.50 582.00 869.50 988.50 768.00 550.50 260.00 5.50 0.00 4368.50
1987 0.00 0.00 85.50 375.00 685.00 917.00 1021.50 779.00 584.50 137.00 56.50 0.00 4641.00
1988 0.00 0.00 4.50 173.50 736.50 947.50 1019.50 927.50 549.83 a 117.50 3.00 0.00 4479.33
1989 0.00 0.00 28.50 163.50 439.50 683.50 917.50 763.00 504.00 338.50 4.00 0.00 3842.00
1990 0.00 0.00 68.50 268.00 475.50 864.00 922.00 888.00 679.00 255.00 96.00 1.00 4517.00
1991 0.00 0.50 29.00 285.00 634.00 940.00 953.00 887.00 547.50 250.00 0.00 0.00 4526.00
1992 0.00 0.00 19.00 139.50 621.00 730.00 735.00 727.50 578.00 259.50 0.50 0.00 3810.00
1993 0.00 0.00 11.50 156.50 525.50 710.00 904.50 891.50 440.50 247.00 7.00 0.00 3894.00
1994 0.00 0.00 20.50 226.50 655.50 848.50 865.50 770.50 692.00 356.00 53.00 0.00 4488.00
1995 0.00 0.00 63.50 102.50 498.50 863.00 970.50 1042.00 557.50 269.50 0.00 0.00 4367.00
1996 0.00 0.00 12.00 115.50 428.50 833.00 877.50 891.00 606.00 308.50 9.50 0.00 4081.50
1997 0.00 0.00 16.00 187.50 391.00 856.00 923.50 857.50 671.50 333.50 1.00 0.00 a 4237.50
1998 0.00 16.50 61.50 305.00 728.00 736.00 953.50 938.00 764.50 321.50 31.50 31.00 4887.00
1999 0.00 0.00 37.50 234.00 593.00 780.50 1051.00 838.00 577.50 274.00 112.50 4.00 4502.00
2000 0.00 27.50 127.00 209.50 563.00 747.93 a 918.50 839.50 564.64 b 311.50 20.69 a 0.00 4329.76
2001 0.00 0.00 0.00 217.00 556.00 798.62 a 1040.00 945.50 571.50 267.12 a 200.00 1.00 4596.74
2002 2.00 0.50 4.00 241.00 442.50 878.00 1065.00 878.00 672.50 141.00 17.00 0.00 4341.50
2003 1.50 0.00 z 76.50 289.50 480.00 774.00 937.00 0.00 z 587.50 331.50 0.00 z 0.00 3477.50
2004 0.00 0.00 66.50 300.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 366.50
2005 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2006 0.00 z 0.00 z 0.00 z 0.00 z 583.00 636.50 h 785.00 i 882.50 366.00 g 185.00 g 56.00 m 0.00 h 1465.50
2007 0.00 g 0.00 d 49.50 p 147.50 g 604.50 a 572.00 i 784.50 g 622.00 g 626.50 296.50 f 26.50 0.00 1257.50
2008 0.00 i 0.00 a 0.50 129.50 458.50 757.50 945.50 858.00 626.00 220.50 86.50 0.00 4082.50
2009 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 822.00 710.50 117.50 94.00 0.00 1744.00
2010 0.00 0.00 60.50 386.50 566.50 626.50 f 1012.00 1015.00 552.50 376.50 69.00 0.00 4038.50
2011 0.00 0.00 1.03 a 137.68 b 488.50 795.00 1094.50 910.00 587.00 385.50 44.50 0.00 4443.71
2012 0.50 0.00 312.00 251.00 672.00 858.50 1134.00 868.00 602.50 217.00 64.00 3.50 4983.00
2013 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.07 1.82 35.30 215.24 553.65 806.58 964.25 880.89 585.87 289.70 45.60 2.08 4385.12
S.D. 0.33 5.45 50.99 86.52 98.81 78.40 81.61 76.15 70.22 94.42 41.77 7.33 295.17
SKEW 5.09 3.36 3.09 0.29 0.29 -0.21 0.13 0.50 0.08 0.51 1.31 4.68 0.45
MAX 2.00 27.50 312.00 422.50 810.50 979.14 1157.00 1079.00 766.00 583.50 200.00 45.50 5157.08
MIN 0.00 0.00 0.00 55.50 391.00 612.00 735.00 727.50 391.00 117.50 0.00 0.00 3810.00
NO YRS 60 61 61 60 61 58 59 60 61 60 58 61 54