date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
1944 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 96.00 z 0.00 z 0.00 z 0.00 z 0.00 j 0.00
1945 0.00 0.00 160.00 185.00 338.50 588.50 885.50 0.00 z 546.00 192.00 18.50 0.00 2914.00
1946 0.00 a 0.00 117.50 263.00 477.00 827.00 1003.88 a 845.50 596.50 380.00 54.00 0.00 z 4564.38
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 j 0.00 0.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 779.50 1007.50 960.50 766.50 277.50 69.00 0.00 3860.50
1949 0.00 0.00 8.50 199.50 416.00 j 900.56 c 1049.50 1013.50 544.00 367.50 54.50 0.00 4137.56
1950 0.00 c 0.00 0.00 44.50 448.50 752.50 845.00 747.00 568.50 371.50 12.50 0.00 3790.00
1951 0.00 0.00 2.00 104.00 615.50 661.00 884.00 764.50 457.50 252.50 2.00 8.50 3751.50
1952 0.00 0.00 a 0.00 a 278.79 a 504.00 807.50 966.00 805.00 595.34 a 125.00 46.00 0.00 a 4127.64
1953 0.00 a 0.00 14.50 71.50 287.00 n 812.00 894.19 b 919.00 590.00 442.78 a 95.50 0.00 3839.47
1954 0.00 1.00 0.00 234.00 359.50 840.00 923.00 848.50 524.00 207.50 45.50 0.00 3983.00
1955 0.00 0.00 a 12.00 346.00 618.97 a 749.50 1087.00 1008.05 c 609.11 b 304.00 2.50 0.00 a 4737.13
1956 0.00 c 0.00 0.00 78.60 e 547.87 e 869.00 822.05 c 857.00 501.00 426.00 89.50 0.00 4191.02
1957 0.00 0.00 2.50 262.50 b 482.50 765.00 1025.50 858.50 500.50 205.00 25.18 b 0.00 4127.18
1958 0.00 1.00 5.50 200.00 507.37 a 627.00 486.50 n 847.50 613.00 314.81 b 62.50 0.00 3178.68
1959 0.00 a 0.00 11.00 182.50 425.00 h 836.79 b 941.62 c 988.00 623.00 149.50 3.89 c 0.00 3736.30
1960 0.00 0.00 16.00 227.00 511.50 687.50 703.00 g 900.07 b 631.00 289.50 17.50 0.50 3280.57
1961 0.00 0.00 26.50 76.00 450.00 801.00 919.00 939.09 b 568.00 311.50 26.00 0.00 a 4117.09
1962 0.00 0.00 6.00 183.50 639.00 738.62 a 647.00 g 878.00 505.50 366.00 9.00 34.00 3359.62
1963 0.00 b 0.00 66.50 239.00 443.09 b 838.45 a 1000.50 839.00 640.50 539.50 46.00 0.00 4652.53
1964 0.00 1.04 a 2.00 223.00 663.29 b 532.50 k 1071.00 867.50 542.68 b 242.00 139.50 0.00 3752.01
1965 0.00 0.00 0.00 98.00 644.00 756.50 880.00 829.50 407.78 c 304.00 38.00 0.00 3957.78
1966 0.00 0.00 35.00 101.50 430.79 b 515.50 i 1054.00 843.00 597.93 a 249.00 22.00 0.00 3333.22
1967 0.00 0.00 33.50 179.00 363.50 790.50 897.50 560.00 j 577.00 240.50 10.00 0.00 3091.50
1968 0.00 0.00 130.72 a 260.50 432.50 780.50 910.50 907.00 592.50 327.50 19.50 0.50 4361.72
1969 0.00 0.00 1.50 240.50 569.50 580.50 929.00 985.00 637.00 215.00 36.00 0.00 4194.00
1970 0.00 0.00 0.00 228.00 538.00 847.00 1022.50 907.50 595.50 300.50 11.50 0.00 4450.50
1971 0.00 0.00 0.50 228.00 431.00 923.50 857.50 837.50 644.50 430.50 34.50 0.00 4387.50
1972 0.00 0.00 0.50 133.00 647.50 759.50 887.08 e 720.00 g 549.00 203.00 8.50 0.00 3188.08
1973 0.00 0.00 89.00 168.50 425.50 824.00 979.08 a 957.50 566.50 404.00 21.96 b 0.00 4436.05
1974 0.00 0.00 5.50 222.00 445.50 691.00 1058.00 834.50 458.04 b 277.50 42.50 0.00 4034.54
1975 0.00 0.00 0.00 102.00 609.50 771.50 995.00 868.00 463.97 a 321.37 a 105.50 0.00 4236.83
1976 0.00 0.00 43.00 236.50 440.50 823.00 971.00 847.50 505.50 165.50 3.00 0.00 4035.50
1977 0.00 0.00 56.50 362.00 746.00 712.50 945.50 701.00 551.50 158.00 53.50 0.00 4286.50
1978 0.00 0.00 24.50 106.00 538.50 681.50 803.50 811.50 637.50 182.50 47.50 0.00 3833.00
1979 0.00 0.00 0.00 111.50 334.00 636.50 837.50 752.00 629.50 218.50 26.00 0.00 3545.50
1980 0.00 0.00 0.00 261.50 600.00 762.50 984.00 884.00 554.00 175.50 34.00 0.00 4255.50
1981 0.50 14.00 48.00 226.50 460.50 753.00 886.00 860.00 526.50 213.00 79.00 0.00 4067.00
1982 0.00 0.00 3.50 152.00 650.50 594.00 961.00 827.50 536.00 268.50 27.00 17.50 4037.50
1983 0.00 0.00 24.50 101.50 364.00 787.50 1046.50 1013.50 617.00 250.50 58.50 0.00 4263.50
1984 0.00 0.00 0.00 223.00 438.00 833.50 923.50 986.50 523.50 385.50 18.00 0.00 4331.50
1985 0.00 0.00 42.50 363.50 696.00 705.50 942.00 834.50 593.50 245.50 12.00 0.00 4435.00
1986 0.00 0.00 86.00 333.50 632.00 830.50 1028.00 809.50 603.50 269.50 11.50 0.00 4604.00
1987 0.00 0.00 93.00 407.00 688.50 912.50 1084.00 902.00 671.00 130.00 80.50 0.00 4968.50
1988 0.00 0.00 14.00 208.00 734.70 a 949.50 1131.50 1065.00 667.00 168.00 21.00 0.00 4958.70
1989 0.50 0.00 38.50 187.00 548.50 751.50 1033.50 929.50 617.00 327.50 12.00 0.00 4445.50
1990 0.00 0.00 69.00 302.50 470.00 837.50 970.50 934.50 696.00 256.00 103.50 0.00 4639.50
1991 0.00 0.00 43.00 292.00 665.00 945.50 964.50 933.00 519.50 194.00 0.00 0.00 4556.50
1992 0.00 0.00 7.50 108.50 562.00 713.50 762.00 765.50 510.00 230.00 6.00 0.00 3665.00
1993 0.00 0.00 19.50 108.00 485.00 667.00 893.00 892.00 365.00 162.50 4.50 0.00 3596.50
1994 0.00 2.00 16.50 170.50 536.50 843.50 872.50 801.50 668.00 306.50 45.00 0.00 4262.50
1995 0.00 0.00 39.00 68.00 480.50 932.00 959.00 1003.00 520.00 228.00 0.00 0.00 4229.50
1996 0.00 0.00 4.00 105.00 411.50 792.00 859.50 891.50 592.00 228.50 1.00 0.00 3885.00
1997 0.00 0.00 9.50 167.00 341.50 848.00 907.00 790.50 615.50 284.00 5.50 0.00 3968.50
1998 0.00 5.00 59.50 278.00 717.00 728.00 952.50 916.50 726.00 259.00 30.50 11.00 4683.00
1999 0.00 0.00 27.50 216.00 600.37 a 784.50 1040.50 841.00 541.50 189.10 a 65.00 1.50 4306.97
2000 0.00 13.00 98.00 0.00 z 566.00 725.50 313.50 u 882.50 538.00 311.00 60.50 0.00 3194.50
2001 0.00 0.00 0.00 237.00 533.50 774.00 963.00 945.50 521.00 179.50 147.50 14.50 4315.50
2002 0.00 0.00 0.00 205.50 376.00 837.50 1056.00 865.50 644.50 121.00 15.50 1.00 4122.50
2003 0.00 0.00 56.00 205.50 483.50 736.00 916.50 978.00 599.50 229.00 8.50 0.00 4212.50
2004 0.00 0.00 30.00 230.00 430.50 683.50 881.50 677.50 688.00 260.00 49.50 0.00 3930.50
2005 0.00 0.00 33.00 282.50 464.00 885.00 995.00 875.00 685.50 295.00 45.50 0.00 z 4560.50
2006 0.00 0.00 12.50 307.50 566.00 818.00 1082.50 0.00 z 477.50 155.00 37.50 0.00 3456.50
2007 0.00 0.00 95.00 233.00 620.50 856.00 956.00 888.00 638.00 373.50 14.50 0.00 4674.50
2008 0.00 0.00 0.00 148.50 397.50 760.50 940.50 845.00 619.00 224.50 91.50 0.00 4027.00
2009 0.00 0.00 a 19.00 158.00 499.00 720.50 769.00 805.00 665.50 99.50 68.00 0.00 3803.50
2010 0.00 0.00 62.50 337.00 549.00 772.00 994.50 972.00 478.00 295.00 43.50 0.00 4503.50
2011 0.00 0.00 3.00 102.00 469.98 c 758.00 1062.00 891.00 532.50 315.00 30.00 a 0.00 4163.48
2012 0.00 a 0.00 265.05 a 190.00 659.50 830.00 1107.50 870.14 b 563.00 128.00 i 0.00 z 0.00 z 4485.19
Period of Record Statistics
MEAN 0.02 0.56 33.18 201.40 522.22 778.27 956.79 878.47 576.85 263.49 38.27 1.37 4222.98
S.D. 0.09 2.41 46.40 82.65 107.00 84.31 83.79 78.24 74.32 87.58 33.33 5.23 327.32
SKEW 5.48 4.93 2.53 0.21 0.19 -0.24 -0.12 -0.03 -0.17 0.58 1.23 4.67 0.15
MAX 0.50 14.00 265.05 407.00 746.00 949.50 1131.50 1065.00 766.50 539.50 147.50 34.00 4968.50
MIN 0.00 0.00 0.00 44.50 334.00 580.50 762.00 677.50 365.00 99.50 0.00 0.00 3545.50
NO YRS 66 66 66 65 63 65 63 63 67 66 66 65 50