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
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 543.50 l 756.50 581.00 119.50 29.00 0.00 1486.00
1953 0.00 0.00 11.00 51.00 336.87 a 701.25 b 826.00 882.00 537.00 437.10 a 93.50 0.00 3875.72
1954 0.00 7.50 5.00 139.50 271.00 729.50 830.50 723.00 442.00 174.50 36.50 0.00 3359.00
1955 0.00 0.00 16.00 256.00 508.50 693.00 968.50 906.50 536.50 295.00 1.00 0.00 4181.00
1956 0.00 0.00 0.00 23.89 c 329.50 f 759.50 695.50 743.50 424.14 a 434.00 a 83.50 0.00 3164.03
1957 0.00 0.00 0.00 220.50 390.00 635.50 877.00 786.00 469.00 233.00 24.50 0.00 3635.50
1958 0.00 10.00 3.00 157.50 404.50 553.39 b 779.50 766.50 570.50 267.00 52.00 0.00 3563.89
1959 0.00 0.00 8.00 96.00 473.00 734.50 887.00 870.00 556.50 139.00 1.00 0.00 3765.00
1960 0.00 0.00 a 4.50 154.50 f 344.50 614.00 805.50 844.00 548.00 282.50 23.00 0.50 3466.50
1961 0.00 2.50 12.50 67.00 329.50 681.00 801.50 871.50 534.50 278.00 33.50 0.00 3611.50
1962 0.00 0.00 11.00 79.00 487.50 612.41 a 759.00 793.00 453.62 a 312.07 a 20.50 23.00 3551.10
1963 0.00 0.00 46.50 143.00 353.00 723.00 903.00 722.50 564.00 543.00 39.00 0.00 4037.00
1964 0.00 0.00 2.00 143.00 577.00 649.00 894.50 694.00 456.50 250.00 96.50 0.00 a 3762.50
1965 0.00 0.00 b 0.00 y 78.33 c 533.95 b 651.00 764.00 757.50 378.50 278.50 32.50 0.00 3474.28
1966 0.00 3.50 39.50 71.50 328.00 776.50 968.50 749.00 505.50 221.50 9.50 0.00 3673.00
1967 0.00 0.00 37.00 114.50 233.00 614.50 780.50 731.00 555.50 198.50 12.00 0.00 3276.50
1968 0.00 0.00 88.50 139.00 302.50 573.50 823.00 760.50 558.00 314.50 8.00 0.00 3567.50
1969 0.00 0.00 0.00 113.00 399.50 454.00 755.50 886.00 529.00 184.00 45.50 0.00 3366.50
1970 0.00 0.00 0.00 167.50 270.00 681.00 915.50 826.50 526.00 281.00 8.00 0.00 3675.50
1971 0.00 0.00 6.00 115.50 265.50 741.50 736.50 681.50 573.50 362.50 12.00 0.00 3494.50
1972 0.00 b 0.00 0.00 47.00 497.00 574.50 745.00 719.00 402.00 163.00 7.50 0.00 3155.00
1973 3.00 0.00 31.00 123.00 263.50 690.00 811.00 860.50 459.50 364.50 7.00 0.00 3613.00
1974 0.50 0.00 5.50 124.00 352.50 387.00 h 935.17 a 729.00 342.00 255.00 46.50 0.00 2790.17
1975 0.00 0.00 3.50 63.50 523.00 699.00 659.00 h 610.00 g 395.00 309.50 121.00 0.00 2114.50
1976 0.00 10.50 34.50 199.50 351.00 759.00 836.50 869.00 496.50 0.00 z 0.00 z 0.00 z 3556.50
1977 0.00 2.00 52.00 254.50 696.50 652.00 379.50 q 636.53 a 488.00 200.50 77.50 0.00 3059.53
1978 0.00 0.00 14.00 53.28 a 470.50 631.00 787.00 786.50 616.00 256.50 72.50 0.00 3687.28
1979 0.00 0.00 19.50 105.50 261.00 596.00 831.83 a 714.00 571.00 155.52 a 29.50 0.00 3283.85
1980 0.00 0.00 g 2.00 190.00 c 512.50 629.50 891.00 828.00 495.50 148.00 29.00 0.00 3725.50
1981 7.50 31.00 25.00 163.00 381.00 665.50 845.00 831.00 472.24 a 176.50 96.50 0.00 3694.24
1982 0.00 0.00 22.00 121.50 516.00 488.50 876.00 700.00 502.00 272.80 a 27.41 a 19.50 3545.71
1983 0.00 1.50 10.00 82.50 285.50 673.00 1011.00 969.50 610.00 227.50 37.50 0.00 3908.00
1984 0.00 14.50 0.00 134.00 337.50 690.50 795.00 833.00 446.50 347.50 58.45 a 2.00 3658.95
1985 0.00 0.00 23.50 243.00 461.50 571.50 769.50 696.50 516.50 249.00 35.00 0.00 3566.00
1986 0.00 a 0.00 56.32 a 206.90 a 460.41 d 617.50 886.50 652.00 449.50 271.00 30.00 3.50 3633.62
1987 1.00 1.00 80.50 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 82.50
1988 0.00 0.00 3.00 101.00 568.50 766.00 942.50 842.00 526.00 114.00 3.00 0.00 3866.00
1989 0.00 0.00 23.50 80.50 404.50 573.00 863.50 808.00 517.00 272.00 3.00 0.00 3545.00
1990 1.50 0.00 42.50 242.00 286.00 673.00 695.00 698.00 456.50 137.00 84.00 1.50 3317.00
1991 0.00 9.00 10.00 224.00 537.00 717.00 810.00 832.00 459.50 137.50 6.50 0.00 3742.50
1992 0.00 0.00 2.50 74.00 494.50 553.50 626.00 671.50 458.00 178.00 0.00 0.00 3058.00
1993 0.00 0.00 3.00 50.17 a 348.00 551.00 802.50 806.50 317.00 115.00 0.50 0.00 2993.67
1994 0.00 5.50 7.50 97.00 392.00 681.00 768.50 687.50 575.50 264.00 38.50 1.50 3518.50
1995 0.00 0.00 39.00 17.50 342.50 732.00 826.00 888.50 451.50 211.00 0.00 0.00 3508.00
1996 0.00 0.00 7.50 34.00 270.00 631.50 694.50 804.00 507.00 207.50 7.50 0.00 3163.50
1997 0.00 0.00 2.50 87.50 193.50 744.50 774.50 660.50 538.00 253.00 11.00 0.00 3265.00
1998 0.00 5.00 32.00 155.00 519.50 610.00 840.50 836.50 634.50 234.50 19.50 4.00 3891.00
1999 0.00 1.00 19.00 89.50 476.50 671.50 911.50 744.00 513.00 147.00 75.00 0.00 3648.00
2000 0.00 a 8.00 82.50 0.00 z 421.00 525.50 737.50 789.50 452.50 336.50 66.50 0.00 3419.50
2001 0.00 0.00 0.00 141.00 450.50 649.00 755.50 825.00 421.50 155.50 114.00 1.00 3513.00
2002 0.00 0.00 0.00 88.50 225.00 611.50 854.50 707.50 509.50 78.50 10.00 0.00 3085.00
2003 0.00 0.00 27.00 79.00 301.00 549.00 751.50 803.00 513.00 190.50 3.50 0.00 3217.50
2004 0.00 0.00 7.00 57.50 240.50 489.00 683.50 523.50 616.50 198.50 16.00 0.00 2832.00
2005 0.00 1.50 25.00 164.50 136.00 m 0.00 z 62.00 z 735.00 572.00 261.12 e 16.50 0.00 1775.62
2006 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 751.00 382.00 0.00 z 25.00 0.00 1158.00
2007 0.00 0.00 55.50 121.50 462.50 717.00 815.00 759.50 490.50 247.50 11.50 0.00 3680.50
2008 0.00 0.00 0.00 48.00 196.00 545.50 730.00 684.50 472.50 141.00 58.50 0.00 2876.00
2009 0.00 0.00 9.00 58.00 297.00 523.00 589.00 643.50 599.50 49.50 33.50 0.00 2802.00
2010 0.00 0.00 24.00 153.50 420.50 557.00 836.50 805.00 141.00 r 234.00 63.00 0.00 a 3093.50
2011 0.00 9.00 3.50 112.00 314.65 a 600.50 959.89 c 830.28 a 490.50 328.17 b 38.28 a 0.00 a 3686.77
2012 0.00 0.00 d 220.74 b 74.46 b 499.21 b 744.44 c 959.28 d 756.40 a 476.79 b 129.50 h 0.00 z 0.00 z 3731.32
Period of Record Statistics
MEAN 0.22 2.08 22.69 118.52 389.96 641.62 818.52 770.65 500.20 236.72 35.19 0.97 3507.62
S.D. 1.06 5.07 34.27 60.81 111.62 79.04 88.20 80.85 68.49 91.58 31.45 3.96 311.04
SKEW 5.94 3.72 3.68 0.63 0.28 -0.28 -0.10 -0.22 -0.35 0.71 0.99 4.87 -0.46
MAX 7.50 31.00 220.74 256.00 696.50 776.50 1011.00 969.50 634.50 543.00 121.00 23.00 4181.00
MIN 0.00 0.00 0.00 17.50 193.50 454.00 589.00 523.50 317.00 49.50 0.00 0.00 2802.00
NO YRS 60 59 58 56 56 56 55 59 59 57 58 58 46