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
1948 0.00 z 0.00 z 0.00 z 0.00 z 269.50 585.50 208.50 w 808.50 657.50 262.50 71.00 1.50 2656.00
1949 1.50 0.00 4.00 196.50 336.50 737.00 897.50 859.50 459.00 376.50 25.00 2.50 3895.50
1950 0.00 0.00 0.00 32.50 291.50 605.00 731.50 585.00 509.48 a 308.00 9.00 0.00 3071.98
1951 0.00 0.50 6.00 73.00 430.00 500.50 805.00 642.50 432.50 198.92 a 22.50 10.50 3121.92
1952 0.00 0.00 4.50 233.00 298.50 656.00 878.50 779.00 605.50 140.00 45.50 0.00 3640.50
1953 0.00 0.00 15.00 26.50 332.50 638.00 834.50 890.00 536.50 408.50 98.50 2.00 3782.00
1954 0.00 6.50 5.50 107.00 202.00 667.00 779.50 758.50 457.50 199.00 42.50 0.00 3225.00
1955 0.00 0.00 20.00 232.50 438.50 703.50 963.00 917.00 526.50 288.82 a 9.00 0.00 4098.82
1956 0.00 0.00 0.00 19.00 231.00 672.93 a 638.50 742.50 386.00 399.90 a 79.00 0.00 3168.83
1957 0.00 0.00 a 0.00 201.50 328.00 583.97 a 832.50 752.50 502.00 274.87 a 29.50 0.00 3504.83
1958 0.00 2.00 0.00 154.50 291.50 510.50 755.00 777.00 559.50 290.50 75.50 0.00 3416.00
1959 0.00 0.00 4.50 78.00 457.50 691.00 899.50 872.50 579.50 148.00 0.00 0.00 3730.50
1960 0.00 0.00 0.00 108.50 301.00 578.00 771.50 818.00 540.00 286.00 33.50 4.50 3441.00
1961 0.00 1.00 12.00 52.50 261.00 597.50 776.50 849.50 594.00 284.00 41.50 1.50 3471.00
1962 0.00 0.00 8.50 63.00 444.50 527.00 709.00 745.00 436.00 307.00 18.00 32.00 3290.00
1963 0.00 0.00 32.50 108.50 337.00 638.50 885.50 739.50 515.50 581.00 72.00 0.00 3910.00
1964 0.00 0.00 4.50 128.00 509.00 562.00 856.00 689.00 478.50 256.00 105.50 0.00 3588.50
1965 0.00 0.00 0.00 60.50 442.50 600.50 715.50 699.50 398.50 246.50 33.00 0.00 3196.50
1966 0.00 2.00 20.50 56.00 265.00 690.00 926.00 744.00 553.00 231.00 10.00 0.00 3497.50
1967 0.00 0.00 26.50 85.00 214.50 614.50 760.50 730.50 571.00 207.00 18.50 0.00 3228.00
1968 0.00 0.00 68.50 132.00 273.50 491.00 807.50 753.00 610.00 339.00 24.00 0.00 3498.50
1969 0.50 0.00 0.00 113.50 380.50 460.00 784.00 954.50 578.00 185.50 51.50 0.00 3508.00
1970 0.00 0.00 0.00 117.00 231.00 624.00 894.00 860.00 563.00 331.00 29.50 3.50 3653.00
1971 0.00 0.00 0.00 98.50 266.50 638.50 750.50 725.50 633.00 422.50 36.00 0.00 3571.00
1972 0.00 0.00 0.00 44.00 392.50 511.00 740.00 721.00 438.50 164.50 12.00 0.00 3023.50
1973 2.00 0.00 23.50 104.50 188.00 609.00 834.50 902.00 558.00 413.50 10.00 0.00 3645.00
1974 0.00 0.00 9.00 115.50 263.50 590.00 902.50 758.00 390.00 232.50 47.00 0.00 3308.00
1975 0.00 1.00 3.00 30.00 456.00 633.50 939.00 839.50 426.00 316.50 147.00 0.00 3791.50
1976 0.00 10.50 32.50 157.50 280.00 722.50 821.00 854.50 503.00 174.50 6.00 0.00 3562.00
1977 0.00 0.00 31.50 213.50 574.00 575.00 845.50 676.00 497.50 262.00 81.00 0.00 3756.00
1978 0.00 0.00 2.50 27.00 419.00 613.00 778.50 818.50 559.00 230.00 78.50 0.00 3526.00
1979 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 517.00 776.00 699.00 557.50 141.50 16.50 0.00 2707.50
1980 0.00 0.00 0.00 108.00 383.50 489.50 815.50 836.50 475.34 a 116.00 17.00 0.00 3241.34
1981 0.00 11.00 14.50 83.50 283.50 577.00 802.50 776.50 458.00 158.00 79.00 0.00 3243.50
1982 0.00 0.00 8.00 100.00 370.50 431.00 777.50 660.00 509.00 274.50 29.50 19.00 3179.00
1983 0.00 2.00 1.50 45.50 180.00 603.00 953.50 929.50 621.00 236.00 41.50 0.00 3613.50
1984 0.00 9.00 0.00 63.50 289.50 640.50 781.00 823.50 462.00 298.00 26.00 3.00 3396.00
1985 0.00 0.00 17.00 195.00 334.50 495.50 733.00 736.00 526.00 241.50 20.50 0.00 3299.00
1986 0.00 0.00 37.00 171.00 402.00 542.50 831.00 724.50 494.50 203.00 16.00 0.00 3421.50
1987 0.00 0.00 45.00 191.00 410.50 681.50 892.00 811.00 601.50 121.00 55.00 0.00 3808.50
1988 0.00 0.00 7.00 53.50 413.50 692.50 926.00 849.50 543.50 123.50 12.50 2.50 3624.00
1989 0.00 0.00 18.00 31.50 325.00 487.00 827.00 814.00 584.50 289.00 4.00 0.00 3380.00
1990 0.00 0.00 44.00 225.00 207.00 568.00 769.50 801.00 538.50 179.00 79.00 2.00 3413.00
1991 0.00 13.50 1.00 174.50 431.50 661.00 799.50 899.00 500.00 185.00 19.50 1.50 3686.00
1992 0.00 0.00 0.00 67.50 437.00 504.50 609.50 712.50 517.50 207.50 7.00 0.00 3063.00
1993 0.00 0.00 0.50 29.00 290.00 504.00 838.00 854.50 421.50 147.00 1.00 0.00 3085.50
1994 0.00 6.00 7.50 94.50 316.50 574.00 734.00 712.50 608.00 340.50 63.00 0.00 3456.50
1995 0.00 0.00 32.50 11.00 351.50 740.50 810.00 908.50 516.00 245.50 0.00 0.00 3615.50
1996 0.00 0.00 10.50 29.00 200.50 526.50 660.50 862.12 b 566.50 235.00 15.00 0.00 3105.62
1997 0.00 0.00 4.50 104.00 204.50 702.00 793.00 730.50 609.00 320.50 9.50 4.00 3481.50
1998 0.00 2.00 48.00 180.00 499.00 638.00 903.00 936.50 719.00 343.50 44.46 b 22.50 4335.96
1999 0.00 0.00 45.50 93.00 489.50 748.45 a 975.00 810.50 580.00 195.82 a 108.00 2.00 4047.76
2000 0.00 24.50 83.00 91.00 538.00 596.50 795.00 877.82 a 572.00 374.00 88.00 0.00 4039.82
2001 0.00 0.00 0.00 194.00 478.50 662.50 906.00 909.00 627.50 259.50 121.11 c 15.50 a 4173.61
2002 0.50 0.00 0.00 121.50 253.00 0.00 z 0.00 z 0.00 z 157.50 s 155.00 7.50 0.00 537.50
2003 0.00 0.00 0.00 z 32.00 209.50 512.50 755.50 846.00 621.50 223.00 7.00 0.00 a 3207.00
2004 0.00 0.00 4.17 e 42.00 254.00 505.00 662.00 681.47 b 702.86 b 272.80 a 43.50 0.00 a 3167.80
2005 0.00 0.00 17.00 112.50 304.66 b 696.00 856.63 a 912.00 721.61 b 354.50 52.50 0.00 4027.40
2006 1.00 0.00 16.50 152.50 415.40 a 647.00 936.00 854.50 505.50 171.00 48.50 1.00 3748.90
2007 2.00 0.00 52.50 129.00 e 430.26 b 646.50 817.88 a 865.50 630.52 a 367.00 27.93 a 0.00 3969.09
2008 0.00 0.00 z 0.00 z 0.00 z 211.00 564.00 806.00 834.00 633.00 245.00 87.50 0.00 3380.50
2009 0.00 3.00 16.00 54.00 259.07 c 538.00 704.22 a 769.00 703.00 126.50 94.00 0.00 3266.79
2010 0.00 0.00 14.98 a 194.50 479.50 639.50 939.50 930.00 510.50 338.50 60.50 0.00 4107.48
2011 0.00 5.00 0.00 a 111.00 315.50 537.00 938.50 932.50 572.50 356.00 64.00 0.00 3832.00
2012 0.00 0.00 160.50 75.00 a 494.00 720.00 998.50 893.83 a 557.00 161.00 m 0.00 z 0.00 z 3898.83
Period of Record Statistics
MEAN 0.12 1.60 17.07 105.29 341.69 600.23 819.61 803.99 544.07 259.53 42.62 2.05 3541.53
S.D. 0.42 4.18 26.18 61.00 100.11 77.69 85.99 84.59 78.64 90.78 33.99 5.72 318.89
SKEW 3.69 3.55 3.20 0.47 0.29 -0.03 -0.09 -0.23 0.13 0.71 0.87 3.67 0.41
MAX 2.00 24.50 160.50 233.00 574.00 748.45 998.50 954.50 721.61 581.00 147.00 32.00 4335.96
MIN 0.00 0.00 0.00 11.00 180.00 431.00 609.50 585.00 386.00 116.00 0.00 0.00 3023.50
NO YRS 63 62 61 62 64 64 63 64 64 64 64 64 59