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
1898 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 170.00 0.00 z 0.00 170.00
1899 0.00 6.00 0.00 295.00 544.00 854.00 983.50 1008.00 616.00 389.00 125.00 0.00 4820.50
1900 1.50 0.00 0.50 336.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 527.00 22.50 0.00 h 887.50
1901 0.00 0.00 a 13.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 360.50 19.14 a 2.50 i 393.14
1902 0.00 a 4.50 h 86.50 0.00 z 702.67 d 0.00 z 0.00 z 0.00 z 0.00 z 304.50 64.50 0.00 1158.17
1903 0.00 a 0.00 33.00 209.00 634.50 763.00 937.50 824.50 537.00 353.40 a 80.00 0.00 4371.90
1904 0.00 0.00 12.00 121.00 563.54 c 783.21 b 922.50 856.00 642.50 357.50 116.00 1.50 4375.75
1905 0.00 0.00 122.00 193.00 501.00 825.50 933.00 1033.00 742.50 283.50 76.55 a 0.00 a 4710.05
1906 1.55 a 3.63 a 8.00 330.00 a 558.50 801.60 e 954.50 1006.00 776.00 275.50 53.50 0.00 s 4768.78
1907 0.00 i 0.00 c 92.50 50.50 286.50 771.50 1000.00 909.00 601.00 270.50 35.50 1.00 4018.00
1908 0.00 1.50 27.50 271.50 549.50 750.00 973.00 878.00 814.50 288.00 63.50 0.00 4617.00
1909 0.00 0.00 1.50 77.00 492.00 798.00 947.00 1062.00 628.50 322.00 103.00 4.00 4435.00
1910 0.00 n 0.00 w 250.50 410.69 a 296.50 k 861.00 1024.00 915.00 632.00 463.45 a 2.50 0.00 4559.14
1911 0.00 0.00 104.00 238.50 757.50 1018.50 998.50 863.50 621.00 256.00 0.00 0.00 4857.50
1912 0.00 0.00 8.50 249.00 596.50 742.50 980.00 872.00 619.00 344.00 63.50 4.00 4479.00
1913 0.00 2.50 27.50 244.50 508.00 906.00 998.00 1037.50 679.00 333.00 110.00 13.00 4859.00
1914 1.50 0.00 a 18.00 232.00 646.50 850.00 1106.00 934.98 c 636.21 a 499.50 110.50 0.00 5035.19
1915 0.00 0.00 0.00 463.93 b 426.50 666.50 862.00 809.00 611.00 388.00 87.50 5.54 c 4319.96
1916 0.00 a 0.00 23.50 186.00 492.50 706.00 1208.00 1009.50 621.00 297.00 79.50 5.00 4628.00
1917 0.00 a 0.00 9.00 116.00 457.00 746.50 1042.50 890.00 600.50 124.00 102.00 0.00 4087.50
1918 0.00 2.07 a 121.50 120.50 618.97 a 836.50 971.00 979.00 471.96 b 242.50 m 0.00 z 0.00 z 4121.50
1919 0.00 z 0.00 z 80.50 225.50 567.00 945.50 1108.00 945.00 766.00 237.50 8.00 0.00 4883.00
1920 0.00 0.00 a 73.37 a 58.45 a 521.50 838.97 a 922.50 839.00 714.50 418.50 0.00 0.00 4386.78
1921 0.00 5.00 88.50 321.50 580.22 a 1015.34 a 1163.57 b 941.00 741.50 325.50 b 5.36 b 1.00 5188.49
1922 0.00 0.00 20.15 a 201.00 685.50 919.50 926.00 1044.00 802.00 454.15 a 100.00 3.50 5155.80
1923 0.00 c 2.00 16.50 219.50 556.50 897.00 1128.00 893.50 702.00 265.50 61.03 a 9.30 a 4750.83
1924 0.00 b 0.00 2.58 a 284.50 353.50 741.50 899.50 917.71 b 521.50 511.00 71.50 0.00 a 4303.29
1925 0.00 0.00 78.03 b 411.21 a 511.00 817.00 950.50 971.00 772.50 82.15 a 23.00 0.00 4616.39
1926 0.00 0.50 28.00 215.00 697.50 c 732.32 b 1020.00 962.00 587.00 297.50 25.50 0.00 4565.32
1927 0.00 0.00 51.00 227.00 470.17 a 699.00 896.00 811.50 726.00 404.50 15.50 0.00 4300.67
1928 0.00 2.15 b 80.00 131.50 644.00 660.50 997.50 922.50 559.00 364.00 42.00 0.00 4403.15
1929 0.00 0.00 42.50 255.50 505.41 c 779.00 717.00 i 932.50 598.50 316.72 a 6.00 0.00 3436.13
1930 0.00 38.50 35.00 282.50 572.43 b 800.00 1109.00 1036.00 661.00 338.00 135.50 0.00 5007.93
1931 3.50 8.50 0.50 328.50 509.00 1009.50 1090.50 976.00 866.50 447.50 130.00 3.00 5373.00
1932 0.00 2.50 12.00 238.00 619.50 914.00 1034.50 959.00 604.00 258.00 33.50 0.50 4675.50
1933 0.00 0.00 27.00 212.00 567.00 1099.50 1090.00 907.00 817.00 301.50 45.50 0.50 5067.00
1934 1.00 1.50 52.50 237.50 935.50 1015.00 1108.50 917.00 547.50 475.50 81.00 0.00 5372.50
1935 0.00 0.00 102.00 184.00 426.00 721.00 1178.00 976.00 699.50 279.00 8.00 0.00 4573.50
1936 0.00 0.00 18.50 189.50 741.42 a 793.50 1268.00 1099.50 770.50 280.50 19.50 4.50 5185.42
1937 0.00 0.00 11.00 207.00 599.00 757.50 1100.50 1149.00 719.00 269.00 54.50 0.00 4866.50
1938 0.00 0.00 130.00 319.00 509.50 802.50 1036.00 1050.50 744.50 524.00 67.50 0.00 a 5183.50
1939 1.00 0.00 110.00 224.50 773.00 902.00 1075.50 941.50 807.50 322.50 57.50 38.50 5253.50
1940 0.00 0.00 12.00 138.50 475.00 826.00 1060.00 869.00 711.50 422.00 35.00 0.00 a 4549.00
1941 0.00 0.00 a 6.50 312.50 747.00 849.31 a 1051.00 986.50 694.50 358.00 59.00 10.00 5074.31
1942 0.00 0.00 32.50 337.50 481.50 776.00 951.00 904.50 528.50 336.50 34.50 0.00 4382.50
1943 0.00 0.00 51.00 189.00 418.00 867.50 1015.00 931.50 490.00 313.10 a 0.00 0.00 4275.10
1944 9.00 0.00 a 0.00 86.50 662.00 862.50 914.50 893.00 586.50 273.00 92.00 0.00 4379.00
1945 0.00 0.00 147.00 151.00 329.50 617.00 903.00 901.50 590.50 277.00 29.00 0.00 3945.50
1946 0.00 0.00 145.50 309.50 429.00 806.00 1001.50 849.50 586.00 343.50 18.00 4.00 4492.50
1947 1.50 0.00 12.00 92.00 416.95 a 696.50 968.50 1143.50 702.00 534.00 46.00 0.00 4612.95
1948 0.00 0.00 47.50 298.00 511.00 775.50 1049.50 974.00 785.50 289.50 68.00 4.50 4803.00
1949 0.00 a 0.00 9.50 226.50 636.00 929.50 1101.50 1009.00 515.50 418.00 85.00 0.00 4930.50
1950 0.00 0.00 3.00 50.69 a 474.50 817.50 873.50 787.00 614.50 407.00 40.00 0.00 4067.69
1951 0.00 0.00 a 0.00 b 93.00 649.00 697.00 944.00 849.00 480.50 303.50 21.50 14.00 4051.50
1952 0.00 0.00 a 6.50 290.50 544.00 904.50 1006.50 859.00 660.00 207.50 94.50 0.00 4573.00
1953 0.00 0.00 32.50 94.50 524.50 900.50 990.50 998.00 646.50 497.50 111.00 0.00 4795.50
1954 0.00 20.50 6.50 272.50 405.50 893.50 1052.00 915.00 652.00 251.50 67.50 0.00 4536.50
1955 0.00 0.00 20.50 388.00 718.00 795.50 1171.00 1109.00 691.50 324.50 3.00 0.00 5221.00
1956 0.00 0.00 2.50 96.50 555.00 968.00 908.50 948.50 569.00 488.50 64.50 0.00 4601.00
1957 0.00 0.00 3.00 253.50 467.00 791.50 1118.50 913.00 580.00 268.50 31.00 0.00 4426.00
1958 0.00 16.00 8.50 186.00 614.50 657.50 905.00 967.50 663.50 362.50 79.50 0.00 4460.50
1959 0.00 0.00 12.50 193.50 607.00 897.50 955.50 1054.50 633.50 143.50 8.00 1.50 4507.00
1960 0.00 0.00 4.50 218.50 510.50 752.00 975.00 937.00 681.00 336.00 37.50 5.50 4457.50
1961 0.00 0.00 23.50 75.50 433.50 835.00 927.00 952.50 565.86 a 321.50 31.50 3.00 4168.86
1962 0.00 0.00 0.50 182.50 686.50 776.50 881.00 898.50 513.50 385.50 39.50 37.00 4401.00
1963 0.00 0.00 88.50 243.00 485.50 923.50 987.50 884.00 663.50 603.00 65.00 0.00 4943.50
1964 0.00 0.00 7.00 216.50 659.00 854.00 1066.00 797.50 561.50 255.00 138.00 0.00 4554.50
1965 0.00 0.00 0.00 97.50 605.00 813.00 952.50 852.00 377.50 322.00 44.50 4.50 4068.50
1966 0.00 2.50 76.00 100.50 401.50 833.00 1062.00 830.50 604.00 237.50 11.50 0.00 4159.00
1967 0.00 0.00 55.00 165.50 389.00 785.50 897.00 793.50 559.00 263.50 20.50 0.00 3928.50
1968 0.00 0.00 134.00 219.50 381.00 802.00 910.50 875.00 565.50 307.50 37.00 0.00 4232.00
1969 0.00 0.00 0.00 200.50 566.50 610.00 964.00 951.00 626.00 196.50 54.50 0.00 4169.00
1970 0.00 0.00 0.00 191.00 551.50 845.50 968.50 889.00 581.50 271.00 1.50 2.50 4302.00
1971 0.00 0.00 6.00 222.50 428.00 944.50 839.00 877.00 635.00 409.50 32.00 0.00 4393.50
1972 0.00 0.00 10.00 113.00 627.50 760.50 888.00 900.50 566.50 209.00 13.50 0.00 4088.50
1973 0.00 0.00 45.00 162.50 434.50 867.50 979.00 985.50 589.00 409.00 35.50 0.00 4507.50
1974 0.00 0.00 20.00 222.50 430.00 763.00 1104.50 834.00 494.50 301.50 52.00 0.00 4222.00
1975 0.00 0.00 1.00 89.00 631.00 817.00 1069.00 982.50 519.50 351.50 148.50 0.00 4609.00
1976 0.00 12.00 61.00 310.00 511.50 873.00 1049.00 933.50 598.50 214.00 17.50 0.00 4580.00
1977 0.00 6.50 112.00 452.50 862.50 894.00 1085.00 845.50 696.50 237.00 76.50 0.00 5268.00
1978 0.00 0.00 31.00 157.50 583.00 824.50 948.00 931.50 801.00 272.50 87.00 0.00 4636.00
1979 0.00 0.00 0.00 130.50 451.50 804.00 989.50 873.00 675.50 252.50 30.50 0.00 4207.00
1980 0.00 0.00 9.00 260.00 661.00 856.00 1046.50 938.00 643.50 208.00 65.00 0.00 4687.00
1981 2.50 32.50 69.50 307.50 516.50 851.50 1002.00 912.50 573.00 204.50 100.00 0.00 4572.00
1982 0.00 0.00 10.50 165.50 607.50 651.00 1012.00 881.00 564.50 292.50 19.00 9.50 4213.00
1983 0.00 0.00 37.00 105.50 400.00 801.00 1117.00 1060.50 609.00 239.50 51.50 0.00 4421.00
1984 0.00 0.00 0.00 155.00 457.50 827.50 920.00 988.50 519.00 328.50 31.50 0.00 4227.50
1985 0.00 0.00 41.50 354.50 697.50 725.50 966.00 801.50 571.50 219.50 4.50 0.00 4382.00
1986 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 872.00 1022.00 784.50 620.00 292.00 12.00 0.00 3602.50
1987 1.00 1.00 98.00 379.50 754.50 962.50 1070.00 853.50 661.00 154.00 89.00 0.00 5024.00
1988 0.00 0.00 26.00 169.00 782.00 1042.00 1070.50 1026.00 677.00 174.50 21.00 0.00 4988.00
1989 0.00 0.00 41.00 209.50 541.50 804.00 1037.50 927.00 583.00 350.00 5.50 0.00 4499.00
1990 0.00 0.00 65.50 244.50 455.50 848.50 935.00 905.50 704.50 244.00 90.50 0.00 4493.50
1991 0.00 0.00 32.50 256.50 638.50 960.50 972.00 924.50 581.50 246.50 0.00 0.00 4612.50
1992 0.00 0.00 38.00 117.50 598.50 785.50 764.00 764.50 552.00 286.50 6.00 0.00 3912.50
1993 0.00 0.00 3.00 117.50 487.50 728.50 915.00 922.00 442.00 237.50 8.50 0.00 3861.50
1994 0.00 2.50 25.00 222.00 632.50 891.00 865.50 807.00 703.00 357.00 48.50 0.00 4554.00
1995 0.00 0.00 61.50 90.00 476.00 883.00 981.50 1034.50 552.00 252.00 0.00 0.00 4330.50
1996 0.00 2.00 13.50 111.00 409.50 845.00 898.50 872.00 580.50 300.50 12.00 0.00 4044.50
1997 0.00 0.00 26.50 178.50 357.00 910.00 949.00 855.50 674.00 372.00 10.00 0.00 4332.50
1998 0.00 13.50 61.50 260.00 746.50 749.50 983.50 954.00 781.00 328.50 59.50 38.50 4976.00
1999 0.00 0.00 47.50 220.50 604.50 814.00 1071.50 900.50 587.07 a 264.50 136.50 5.00 4651.57
2000 0.00 36.00 140.00 240.50 645.50 785.50 949.00 937.00 624.00 395.00 68.00 0.00 4820.50
2001 0.00 0.00 0.00 246.50 590.00 832.50 1038.50 a 955.83 a 575.50 264.50 232.50 b 15.50 a 4751.33
2002 5.00 0.00 12.00 233.50 464.00 906.00 1107.50 869.00 674.50 144.50 12.00 0.00 4428.00
2003 9.50 0.00 91.50 301.50 526.50 790.00 1003.00 1001.50 626.00 331.50 31.50 0.00 4712.50
2004 0.00 1.50 86.50 293.50 521.50 732.50 922.00 723.00 748.00 334.50 79.50 0.00 4442.50
2005 0.00 9.50 45.00 341.50 473.50 961.50 1063.00 926.50 763.50 381.00 97.00 0.00 5062.00
2006 0.00 0.00 27.00 355.00 623.50 889.00 1088.50 954.00 564.00 252.50 62.50 0.00 4816.00
2007 0.00 0.00 100.00 257.50 688.00 874.00 976.00 977.00 721.50 436.50 34.00 0.00 a 5064.50
2008 0.00 d 0.00 4.50 154.00 525.50 839.50 1028.00 928.50 698.00 295.50 102.00 0.00 4575.50
2009 0.00 0.00 55.50 220.00 595.50 810.00 871.00 869.00 720.00 134.00 114.50 0.00 4389.50
2010 0.00 0.00 49.00 419.50 604.50 854.50 1058.00 1073.00 628.50 421.50 80.00 0.00 5188.50
2011 0.00 0.00 3.50 157.50 555.00 874.50 1151.00 980.50 601.00 403.50 55.50 0.00 4782.00
2012 1.50 0.00 338.50 288.50 738.50 941.50 1185.00 934.00 633.62 a 254.00 72.00 5.00 5392.12
2013 0.00 a 0.00 6.00 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 6.00
Period of Record Statistics
MEAN 0.36 2.09 43.15 219.64 557.73 830.15 1004.23 927.98 635.95 317.14 53.78 2.30 4592.43
S.D. 1.40 6.52 52.07 91.45 116.62 90.66 87.88 80.96 89.58 95.13 41.50 6.69 361.17
SKEW 5.20 4.17 2.50 0.33 0.40 0.18 0.28 0.27 0.14 0.38 1.00 4.34 0.29
MAX 9.50 38.50 338.50 463.93 935.50 1099.50 1268.00 1149.00 866.50 603.00 232.50 38.50 5392.12
MIN 0.00 0.00 0.00 50.50 286.50 610.00 764.00 723.00 377.50 82.15 0.00 0.00 3861.50
NO YRS 111 111 114 111 110 111 110 111 111 114 113 111 104