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
1950 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 191.00 m 38.00 0.00 b 38.00
1951 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 117.00 t 288.50 12.50 16.00 317.00
1952 0.00 0.00 2.00 240.50 439.00 738.00 876.00 836.00 602.07 a 194.86 c 67.50 3.00 3998.93
1953 0.00 a 0.00 18.50 74.50 329.50 689.50 883.50 942.00 609.00 405.50 135.50 2.00 4089.50
1954 0.00 2.00 4.00 156.50 303.50 675.00 859.50 863.00 661.03 a 325.00 56.50 0.00 3906.03
1955 0.00 0.00 a 7.50 251.50 438.00 636.50 958.50 1034.00 579.00 315.50 20.19 d 0.00 l 4240.69
1956 0.00 0.00 0.50 53.00 300.00 657.50 780.50 860.25 a 468.75 b 346.17 a 92.50 0.00 3559.17
1957 0.00 0.00 1.50 161.90 a 334.00 612.86 b 866.50 883.50 574.00 295.00 55.00 0.00 3784.25
1958 0.00 0.00 0.00 138.62 a 394.00 528.10 a 783.86 c 864.00 600.00 307.50 112.50 0.00 3728.58
1959 0.00 0.00 0.50 138.00 383.50 659.00 776.72 d 929.50 596.90 a 223.00 18.00 0.00 3725.12
1960 0.00 0.00 v 1.00 h 140.00 317.00 397.00 j 802.50 838.50 669.00 297.50 37.00 1.00 3102.50
1961 0.00 1.50 4.50 64.50 296.50 631.50 835.97 a 915.50 671.50 307.50 33.00 10.00 3771.97
1962 0.00 0.00 0.00 137.50 426.50 624.00 817.00 848.50 513.62 a 374.00 27.00 12.50 3780.62
1963 0.00 0.00 38.00 151.50 329.50 589.50 884.50 772.00 609.00 523.50 97.00 0.00 3994.50
1964 2.00 0.00 7.50 159.00 0.00 z 666.50 897.00 788.00 521.00 216.50 136.50 0.00 3394.00
1965 0.00 0.00 0.00 69.50 346.50 584.50 787.00 825.50 533.50 296.00 74.00 5.50 3522.00
1966 0.00 0.00 9.50 74.50 290.00 630.00 935.50 849.50 615.50 257.50 28.50 1.00 3691.50
1967 0.00 0.00 5.50 100.50 246.50 612.00 754.50 715.50 572.00 276.00 23.50 0.00 3306.00
1968 0.00 0.00 49.50 118.50 308.50 581.50 720.50 767.00 642.00 277.00 53.50 2.00 3520.00
1969 0.00 0.00 11.50 107.00 343.00 459.00 798.00 876.50 628.00 250.00 30.50 0.00 3503.50
1970 0.00 0.00 1.00 139.50 338.50 622.00 842.50 891.50 582.50 301.00 53.50 8.50 3780.50
1971 0.00 0.00 0.00 80.00 297.50 610.00 755.50 719.00 636.50 456.00 48.00 0.00 3602.50
1972 0.00 0.00 0.00 58.50 399.50 529.00 720.00 775.50 544.00 223.50 32.50 0.00 3282.50
1973 1.00 0.00 18.00 62.00 301.00 629.50 815.00 851.00 569.50 403.00 22.76 a 4.00 3676.76
1974 0.00 0.00 14.00 99.50 293.50 534.00 824.00 769.00 468.50 220.00 47.50 0.00 3270.00
1975 0.00 0.00 1.00 56.50 422.00 641.00 886.50 874.50 527.00 335.50 128.50 8.50 3881.00
1976 0.00 3.50 23.50 112.00 334.50 728.50 937.75 a 804.00 589.00 219.50 10.50 0.00 3762.75
1977 0.00 0.50 33.00 195.50 494.00 568.50 813.50 701.00 584.50 265.50 101.00 0.00 3757.00
1978 0.00 0.00 3.50 80.00 341.00 536.00 682.00 728.50 694.00 260.00 77.50 0.00 3402.50
1979 0.00 0.00 0.00 58.50 274.00 542.50 838.00 805.00 630.50 234.00 38.50 3.50 3424.50
1980 0.00 0.00 3.50 158.00 459.50 585.50 829.00 855.00 621.50 228.00 38.50 0.50 3779.00
1981 0.00 3.00 24.00 146.50 312.50 658.50 832.00 852.50 599.50 218.00 82.00 0.00 3728.50
1982 0.00 0.00 9.50 89.00 418.50 515.00 791.00 806.50 529.00 312.00 0.00 z 19.50 3490.00
1983 0.00 0.00 15.00 76.00 240.00 630.50 924.50 978.00 572.50 294.00 69.50 0.00 3800.00
1984 0.00 5.00 0.00 86.50 299.50 631.00 784.50 880.50 443.50 289.50 25.00 4.50 3449.50
1985 0.00 0.00 19.00 140.00 403.00 b 532.50 811.50 768.00 538.50 245.50 36.00 0.00 3494.00
1986 0.00 0.00 45.43 b 172.50 468.00 608.50 841.50 799.00 615.00 303.00 28.00 0.00 3880.93
1987 0.00 0.00 47.00 181.00 427.00 797.00 875.50 865.00 631.50 199.50 75.50 1.50 4100.50
1988 0.00 0.00 16.00 108.00 478.29 c 769.50 913.00 902.10 a 599.50 175.50 35.00 4.00 4000.89
1989 0.00 0.00 17.50 78.00 320.00 573.00 868.00 863.50 563.50 229.00 22.50 0.00 3535.00
1990 0.00 0.00 21.50 147.00 282.00 604.50 804.00 823.00 668.50 241.50 90.50 2.50 3685.00
1991 0.00 0.00 24.50 146.50 425.00 724.00 855.50 907.50 554.00 242.50 10.00 0.00 3889.50
1992 0.00 0.00 8.00 37.00 348.50 557.50 725.00 696.50 474.50 233.00 21.00 0.00 3101.00
1993 0.00 0.00 8.50 73.00 310.00 562.00 824.50 898.50 429.00 217.50 20.00 1.50 3344.50
1994 0.00 0.00 8.00 151.50 336.50 614.00 809.00 736.00 676.00 315.50 67.50 5.50 3719.50
1995 0.00 0.00 15.00 69.50 351.50 753.50 841.00 1010.50 551.50 281.50 4.50 0.00 3878.50
1996 0.00 2.50 0.00 68.00 282.50 563.50 736.00 845.50 620.00 231.00 11.00 0.00 3360.00
1997 0.00 1.50 8.00 92.50 226.00 619.50 777.00 771.00 628.50 256.50 19.00 0.50 3400.00
1998 0.00 0.00 56.50 128.00 468.50 685.50 909.50 899.50 700.00 317.50 61.00 32.50 4258.50
1999 0.00 0.00 34.50 129.50 430.00 604.00 926.50 820.50 552.50 219.58 a 109.00 5.50 3831.58
2000 0.00 1.00 81.50 93.00 406.00 611.50 808.00 859.50 574.00 329.00 56.50 0.00 3820.00
2001 0.00 0.00 0.00 149.50 357.50 572.50 861.50 932.00 551.00 264.50 125.00 25.50 3839.00
2002 1.50 0.00 1.50 154.00 249.00 598.50 967.00 844.50 657.00 178.50 16.00 0.00 3667.50
2003 0.50 0.00 28.50 119.50 325.50 527.50 778.00 870.00 553.00 209.00 27.00 0.50 3439.00
2004 0.00 0.00 14.50 120.50 294.50 543.00 777.00 127.00 z 270.00 o 320.00 97.00 0.00 2166.50
2005 0.00 0.00 4.43 c 142.76 a 333.00 730.00 908.50 901.50 698.50 278.00 78.50 0.00 4075.19
2006 0.00 0.00 13.50 211.50 345.50 673.00 923.00 919.00 567.00 172.50 43.00 4.50 3872.50
2007 3.50 0.00 76.00 131.00 394.00 673.50 857.50 910.00 599.50 386.00 40.50 0.00 4071.50
2008 0.00 0.00 0.00 98.00 308.00 625.50 801.00 894.00 657.00 269.00 78.50 0.00 3731.00
2009 0.00 1.00 12.50 88.00 354.00 607.00 776.00 715.00 653.50 160.50 97.00 0.00 3464.50
2010 0.00 0.00 20.00 187.50 460.00 740.00 939.00 946.00 520.50 346.50 44.00 0.00 4203.50
2011 0.00 0.00 4.43 c 62.50 280.55 a 620.17 a 957.50 948.50 593.50 324.98 a 72.93 a 4.00 3869.07
2012 1.00 0.00 132.30 c 97.76 a 471.50 709.66 a 1037.00 896.00 589.50 174.50 h 0.00 z 0.00 z 3934.72
Period of Record Statistics
MEAN 0.15 0.35 17.08 118.24 353.11 622.28 839.37 849.04 587.91 278.41 54.27 3.11 3709.29
S.D. 0.56 0.96 23.67 46.98 67.74 69.90 70.79 75.14 61.87 68.75 34.85 6.29 255.14
SKEW 4.39 3.12 2.66 0.61 0.35 0.34 0.29 -0.08 -0.41 1.00 0.71 2.94 -0.12
MAX 3.50 5.00 132.30 251.50 494.00 797.00 1037.00 1034.00 700.00 523.50 136.50 32.50 4258.50
MIN 0.00 0.00 0.00 37.00 226.00 459.00 682.00 696.50 429.00 160.50 4.50 0.00 3101.00
NO YRS 62 61 60 61 60 60 61 60 60 61 61 61 55