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
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 512.00 n 1027.00 875.00 629.50 137.95 a 95.50 0.00 2764.95
1953 0.00 0.00 39.50 88.00 529.58 a 904.00 953.50 941.50 627.50 428.26 d 113.79 a 2.00 4627.64
1954 0.00 b 22.50 16.00 348.00 408.50 923.00 1033.50 880.00 640.86 a 275.50 71.00 0.00 4618.86
1955 0.00 0.00 21.00 385.50 672.50 763.50 1156.00 1056.50 693.00 336.00 11.50 0.00 5095.50
1956 0.00 0.00 a 0.00 140.50 593.00 0.00 z 869.00 924.00 556.00 500.00 85.00 0.00 3667.50
1957 0.00 0.00 13.00 291.50 537.00 820.50 1071.50 908.62 b 574.50 247.00 38.50 0.00 4502.12
1958 0.00 15.00 4.00 l 216.00 590.50 669.00 881.50 930.50 655.50 410.50 79.66 a 0.00 4448.16
1959 0.00 0.00 6.50 213.50 674.00 846.43 b 917.50 1016.00 616.00 165.50 11.50 f 6.95 b 4462.38
1960 0.00 b 0.00 11.50 238.85 d 525.00 710.50 907.50 940.85 a 647.50 283.00 30.50 8.00 4303.20
1961 0.00 2.50 19.50 72.41 a 456.50 805.86 a 678.50 g 923.00 569.46 b 343.14 b 27.50 5.00 3224.88
1962 0.00 0.00 a 24.50 176.79 b 701.78 b 749.48 a 832.41 d 866.40 b 496.11 c 371.50 20.50 g 30.50 4249.46
1963 0.00 0.00 b 152.79 c 195.00 419.00 806.00 650.00 i 786.76 b 563.50 491.50 7.00 u 0.00 3414.54
1964 0.00 0.00 14.00 243.21 b 687.50 844.66 a 1092.23 a 848.88 a 563.00 235.00 160.50 0.00 4688.99
1965 0.00 0.00 0.00 110.69 a 622.50 741.50 902.10 a 826.48 c 488.50 297.08 a 56.50 2.00 4047.36
1966 0.00 6.00 73.88 a 104.00 374.58 a 768.50 990.00 801.50 523.45 a 246.45 a 30.50 0.00 3918.86
1967 0.00 0.00 62.50 192.50 354.50 772.00 838.60 b 739.00 521.00 241.00 11.50 0.00 c 3732.60
1968 0.00 a 0.00 b 119.00 239.50 384.83 b 752.00 884.00 873.00 555.50 324.98 a 23.65 d 7.50 4163.96
1969 0.00 0.00 0.00 226.00 545.00 561.50 904.50 885.00 557.68 b 219.00 21.50 0.00 3920.18
1970 0.00 0.00 0.00 211.50 575.00 799.00 967.50 900.00 610.00 299.50 19.29 b 6.20 a 4387.99
1971 0.00 0.00 13.00 229.50 376.28 b 933.50 817.50 815.50 673.00 462.00 34.29 b 0.00 b 4354.56
1972 0.00 a 0.00 k 16.65 d 63.50 o 349.00 o 772.76 a 648.50 g 921.00 595.50 226.00 21.50 0.00 2553.41
1973 2.00 0.00 92.00 163.00 437.00 832.50 988.00 915.50 604.00 448.00 33.50 1.50 4517.00
1974 0.00 0.00 24.50 258.00 454.00 708.00 1047.00 816.50 472.00 324.50 54.00 0.00 4158.50
1975 0.00 0.00 1.50 120.50 635.50 806.50 989.00 938.00 467.00 370.50 138.00 3.50 4470.00
1976 0.00 a 4.50 86.00 263.50 472.00 821.50 997.50 861.50 572.50 199.50 12.50 0.00 4291.00
1977 0.00 0.00 124.50 430.50 781.50 826.00 1044.50 800.32 a 643.50 235.50 89.50 0.00 4975.82
1978 0.00 0.00 36.68 a 179.00 582.50 824.00 940.52 c 874.00 760.50 267.50 82.50 0.00 4547.20
1979 0.00 0.00 7.00 158.50 506.00 799.00 931.00 896.50 671.00 267.50 42.50 0.50 4279.50
1980 0.00 0.00 13.50 264.00 599.50 833.00 1030.00 955.00 666.00 206.50 53.50 0.00 4621.00
1981 3.00 40.50 63.00 321.50 465.00 777.00 917.50 872.00 577.50 261.50 87.00 0.00 4385.50
1982 0.00 0.00 21.00 180.50 588.00 585.00 942.50 874.50 590.50 306.50 40.50 16.00 4145.00
1983 0.00 0.00 45.50 115.00 396.50 762.50 1051.00 1021.00 624.00 261.50 73.00 0.00 4350.00
1984 0.00 7.50 1.00 187.50 414.50 826.00 0.00 z 965.00 580.50 353.00 27.93 a 3.50 3366.43
1985 0.00 0.00 26.50 362.50 395.50 l 722.50 911.00 734.00 524.00 160.50 6.00 0.00 b 3447.00
1986 0.00 0.00 66.65 a 236.00 496.00 757.00 0.00 z 671.00 554.00 201.50 6.50 0.00 2988.65
1987 0.00 0.00 54.00 264.00 564.00 783.50 960.00 752.00 512.50 0.00 z 0.00 z 0.00 3890.00
1988 0.00 0.00 a 26.50 0.00 z 660.50 932.50 1035.00 0.00 z 655.50 190.50 0.00 z 0.00 z 3500.50
1989 0.00 0.00 73.00 195.00 493.00 751.00 1026.50 917.00 588.50 378.50 24.50 0.00 4447.00
1990 0.00 0.00 80.00 265.00 427.00 815.50 930.00 914.50 694.50 259.00 114.00 0.00 4499.50
1991 0.00 0.00 51.00 268.50 628.50 936.50 944.50 915.50 560.50 240.00 6.50 0.00 4551.50
1992 0.00 0.00 30.00 0.00 z 542.50 707.50 0.00 z 742.50 557.00 271.50 11.50 0.00 2862.50
1993 0.00 0.00 6.00 130.50 490.50 711.50 909.00 903.50 427.00 218.50 9.50 0.00 3806.00
1994 0.00 7.00 28.50 215.50 526.50 845.00 855.00 788.00 702.00 338.50 64.00 0.00 4370.00
1995 0.00 0.00 86.00 99.50 456.00 859.50 961.00 1062.50 520.00 262.50 0.00 0.00 4307.00
1996 0.00 0.00 16.00 123.00 401.00 787.00 864.50 832.50 572.50 277.50 6.00 0.00 3880.00
1997 0.00 0.00 35.00 182.50 334.00 826.50 918.50 822.00 626.00 321.00 12.50 0.00 4078.00
1998 0.00 14.00 89.50 247.00 700.00 726.00 950.50 919.50 731.00 313.50 49.00 38.50 4778.50
1999 0.00 6.50 41.00 216.72 a 581.00 801.00 1057.50 853.50 557.00 234.00 104.00 5.50 4457.72
2000 0.00 28.50 124.50 211.00 597.00 761.00 920.00 914.50 611.50 367.00 67.50 0.00 4602.50
2001 0.00 0.00 0.00 303.00 572.00 777.00 995.50 994.00 580.00 251.50 237.00 25.50 4735.50
2002 5.00 3.50 1.50 267.00 470.00 879.00 1061.50 908.00 684.50 171.50 13.00 0.00 4464.50
2003 1.00 i 3.00 82.00 247.00 474.50 743.50 947.50 973.50 615.00 272.00 20.50 0.50 4379.00
2004 0.00 0.00 78.00 228.50 486.50 709.50 876.50 722.00 707.00 272.50 64.50 0.00 4145.00
2005 0.00 2.00 52.50 292.50 434.50 921.00 995.00 870.50 727.00 322.50 69.50 0.00 4687.00
2006 0.00 0.00 17.00 306.50 529.00 785.50 1046.00 924.00 507.50 196.50 63.50 0.00 4375.50
2007 0.00 0.00 106.00 223.50 648.50 834.00 938.00 918.50 661.50 429.00 10.00 0.00 4769.00
2008 0.00 0.00 0.00 162.00 428.00 771.50 975.50 862.50 683.50 261.50 107.00 0.00 4251.50
2009 0.00 1.50 44.50 177.00 528.00 758.50 794.00 817.50 664.50 148.50 91.50 0.00 4025.50
2010 0.00 0.00 59.50 360.00 556.50 837.50 1039.50 1054.50 584.00 341.50 44.50 0.00 a 4877.50
2011 0.00 0.00 6.50 156.00 511.00 817.50 1108.50 929.00 577.00 358.50 50.00 0.50 4514.50
2012 0.00 0.00 357.00 229.66 a 688.50 873.50 1143.00 863.00 560.50 234.50 66.00 7.23 a 5022.89
2013 0.00 0.00 0.00 a 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 0.17 2.74 45.97 219.89 527.31 792.82 965.23 883.81 598.88 288.95 53.31 2.85 4407.57
S.D. 0.78 7.33 55.74 76.77 102.09 74.43 81.79 82.43 70.86 84.10 44.82 7.34 316.17
SKEW 5.01 3.53 3.14 0.39 0.24 -0.46 0.18 -0.15 0.02 0.58 1.56 3.44 -0.04
MAX 5.00 40.50 357.00 430.50 781.50 936.50 1156.00 1062.50 760.50 500.00 237.00 38.50 5095.50
MIN 0.00 0.00 0.00 72.41 334.00 561.50 794.00 671.00 427.00 137.95 0.00 0.00 3732.60
NO YRS 60 60 60 57 58 59 55 60 61 60 56 60 46