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 0.00 z 700.50 922.50 866.50 667.50 172.57 a 68.00 0.00 3397.57
1949 0.00 0.00 0.00 206.00 i 503.00 831.21 a 963.00 860.54 d 454.50 326.00 38.50 0.00 3976.74
1950 0.00 0.00 0.00 19.50 392.00 728.00 772.00 685.00 515.17 a 332.00 20.50 0.00 3464.17
1951 0.00 b 0.00 b 8.50 110.50 616.50 598.00 845.50 719.00 457.00 253.00 6.50 7.00 3621.50
1952 0.00 b 0.00 1.50 282.32 b 467.00 768.00 921.00 788.00 535.50 127.00 29.00 0.00 3919.32
1953 0.00 0.00 13.00 50.69 a 430.26 b 749.00 861.00 886.50 575.50 368.50 94.50 1.00 4029.95
1954 0.00 2.07 a 2.00 182.00 292.50 766.50 878.50 739.00 470.50 225.00 29.50 0.00 a 3587.57
1955 0.00 a 0.00 4.50 248.00 544.00 730.86 a 1071.80 d 1005.50 551.50 252.00 7.00 0.00 4415.16
1956 0.00 0.00 0.00 19.04 d 384.50 743.33 c 783.50 801.50 439.00 389.00 90.00 0.00 a 3649.87
1957 0.00 c 2.00 1.50 242.50 417.98 a 727.50 935.68 a 800.12 b 492.93 a 239.50 30.00 0.00 3889.72
1958 0.00 a 2.50 0.00 141.50 394.50 566.00 826.00 836.50 584.50 310.53 b 60.50 0.00 a 3722.53
1959 0.00 0.00 1.00 122.50 589.55 c 791.50 860.00 993.03 a 609.50 153.50 4.66 a 0.00 d 4125.24
1960 0.00 0.00 4.00 167.50 407.50 596.00 788.50 816.00 568.00 226.09 b 19.50 1.00 3594.09
1961 0.00 0.00 10.00 43.50 336.50 699.00 832.00 836.00 570.50 265.50 25.00 1.50 3619.50
1962 0.00 0.00 6.00 130.00 564.00 668.00 783.50 765.50 423.00 359.50 8.00 29.50 3737.00
1963 0.00 0.00 43.50 185.00 425.00 781.00 943.50 800.50 546.00 553.50 70.50 0.00 4348.50
1964 0.00 0.00 5.50 175.00 635.50 723.00 942.00 735.00 493.50 249.50 140.00 0.00 4099.00
1965 0.00 0.00 a 0.00 56.50 560.00 679.00 809.00 816.50 466.50 289.50 39.50 0.00 3716.50
1966 0.00 0.00 30.00 117.50 358.50 788.00 996.00 834.50 545.00 205.00 8.79 a 0.00 3883.29
1967 0.00 0.00 15.00 118.50 296.50 709.00 814.50 709.50 523.45 a 207.00 25.50 3.00 3421.95
1968 0.00 0.00 85.50 152.50 351.00 717.50 854.50 813.00 589.00 327.50 22.50 0.00 3913.00
1969 0.00 0.00 8.00 154.00 478.00 557.00 889.00 969.00 541.50 242.50 21.50 0.00 3860.50
1970 0.00 0.00 1.00 183.50 476.50 844.00 950.00 880.50 596.38 a 306.00 13.50 0.00 4251.38
1971 0.00 0.00 0.50 128.50 357.00 840.50 770.00 781.00 622.00 435.50 30.00 0.00 a 3965.00
1972 0.00 0.00 c 0.52 a 69.00 600.50 670.00 857.50 840.50 539.00 163.50 22.00 0.00 3762.52
1973 1.00 0.00 22.50 162.00 291.00 807.50 958.50 929.00 594.00 418.50 10.00 0.00 4194.00
1974 0.00 0.00 2.00 172.00 372.50 641.50 936.00 821.50 379.50 245.13 d 64.50 0.00 3634.63
1975 0.00 0.00 0.00 z 60.50 606.50 738.00 988.00 843.50 432.50 288.50 103.00 0.00 4060.50
1976 0.00 1.00 22.50 195.00 383.00 790.00 54.50 z 803.50 482.00 160.00 3.00 0.00 a 2840.00
1977 0.00 0.00 38.50 267.86 b 710.00 666.00 971.50 715.50 552.50 235.50 75.00 0.00 4232.36
1978 0.00 0.00 0.50 61.55 a 530.00 666.00 771.90 a 824.50 591.00 173.50 20.89 b 0.00 a 3639.84
1979 0.00 0.00 1.72 d 91.03 a 344.50 668.79 a 864.38 a 755.50 0.00 z 155.50 21.00 0.00 2902.43
1980 0.00 0.00 0.00 154.00 536.00 681.50 927.93 a 884.50 500.50 147.50 17.50 0.00 b 3849.43
1981 0.00 10.37 a 0.00 z 145.56 c 0.00 z 0.00 z 0.00 z 860.77 a 485.17 a 135.00 60.50 0.00 1697.36
1982 0.00 0.00 7.00 85.50 614.50 540.00 906.50 727.00 463.00 262.00 12.00 12.50 3630.00
1983 0.00 2.00 6.50 92.00 256.50 700.00 998.50 948.50 554.50 208.50 43.50 0.00 3810.50
1984 0.00 1.50 0.00 120.00 319.00 722.00 802.00 842.50 437.00 266.50 16.50 0.00 3527.00
1985 0.00 0.00 26.50 231.00 533.00 591.00 782.00 693.00 316.50 m 0.00 z 0.00 z 0.00 z 2856.50
1986 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 616.50 771.50 626.00 469.50 162.50 5.36 b 0.00 2651.36
1987 0.00 0.00 32.00 262.50 459.00 0.00 z 895.38 a 0.00 z 0.00 z 75.50 0.00 z 0.00 1724.38
1988 0.00 a 0.00 1.50 0.00 z 526.50 782.50 906.00 848.50 492.00 100.50 0.00 z 0.00 z 3657.50
1989 0.00 0.00 21.50 81.50 397.00 610.50 867.50 603.00 h 0.00 z 0.00 z 1.00 0.00 1979.00
1990 0.00 0.00 36.50 255.00 329.50 653.50 768.50 404.50 n 498.50 122.00 52.00 0.00 2715.50
1991 0.00 z 1.56 a 13.50 0.00 z 559.79 e 766.00 796.50 451.50 n 409.00 132.50 2.50 0.00 2681.34
1992 0.00 0.00 z 0.00 66.00 408.00 569.00 642.50 260.00 s 408.50 163.00 0.00 0.00 2257.00
1993 0.00 0.00 18.50 46.00 404.50 594.50 809.50 297.00 r 331.00 110.00 3.50 0.00 a 2317.50
1994 0.00 0.00 8.50 109.00 426.50 729.50 783.00 694.00 551.00 60.50 q 33.50 0.00 3335.00
1995 0.00 0.00 30.00 18.50 366.00 815.00 818.50 886.00 212.00 q 79.00 t 0.00 0.00 2934.00
1996 0.00 0.00 0.00 57.50 323.00 644.00 724.00 771.50 245.00 t 99.50 i 4.00 0.00 2524.00
1997 0.00 0.50 4.50 99.50 130.00 i 736.00 793.00 646.00 236.00 q 63.50 r 13.50 0.00 2293.00
1998 0.00 1.50 52.50 155.50 565.00 641.50 826.50 847.00 234.50 r 63.00 s 15.50 15.50 3120.50
1999 0.00 0.00 16.00 147.50 378.00 g 705.50 923.00 739.02 c 373.00 h 52.50 w 53.40 e 0.00 2584.42
2000 0.00 5.00 61.50 107.50 361.00 g 539.50 f 691.50 f 787.50 295.00 i 62.50 w 10.00 g 0.00 961.50
2001 0.00 0.00 0.00 216.92 d 503.48 b 545.50 j 863.35 a 931.79 e 400.00 f 81.00 n 55.50 i 11.00 2526.54
2002 0.00 0.00 1.00 138.00 267.50 476.50 l 988.00 821.50 311.50 l 127.00 11.00 0.00 2354.00
2003 0.00 0.00 37.50 131.00 279.00 i 466.50 g 846.00 668.00 g 384.00 f 54.00 n 4.00 f 0.00 1014.50
2004 0.00 0.00 7.50 i 86.50 h 244.00 j 624.00 788.00 494.00 i 523.00 f 153.50 h 13.00 g 0.00 f 1412.00
2005 0.00 0.00 25.00 g 139.00 f 323.50 h 858.00 924.50 742.00 f 627.50 231.50 k 7.20 e 0.00 2417.20
2006 0.00 0.00 19.78 b 175.56 c 468.00 695.00 992.00 798.50 476.50 69.00 i 25.00 0.00 3650.33
2007 0.00 0.00 74.83 b 149.50 520.00 775.86 a 885.88 e 880.00 469.50 f 319.00 g 11.50 0.00 e 3297.57
2008 0.00 a 0.00 0.00 z 122.50 h 289.00 h 520.50 i 855.00 824.50 437.50 g 128.50 h 55.50 0.00 1735.00
2009 0.00 i 0.00 t 0.00 b 98.50 392.00 645.00 739.50 737.50 587.50 76.00 32.00 0.00 b 3308.00
2010 0.00 c 0.00 46.50 g 239.00 543.00 688.50 929.50 937.00 428.50 223.50 20.50 0.00 a 4009.50
2011 0.00 0.56 c 4.50 h 17.00 p 44.00 z 49.50 z 509.50 p 884.53 a 457.76 a 265.05 a 24.60 e 0.00 h 1632.50
2012 0.00 z 0.00 z 99.00 n 17.50 x 568.85 a 775.50 990.45 a 816.50 477.69 d 131.50 h 0.00 z 0.00 z 3628.99
Period of Record Statistics
MEAN 0.02 0.51 14.52 136.22 451.90 703.69 867.30 816.17 511.50 234.02 30.59 1.37 3842.42
S.D. 0.13 1.56 19.75 68.15 109.05 78.87 84.04 82.71 71.34 100.31 29.26 4.76 264.44
SKEW 7.55 4.77 1.80 0.28 0.18 -0.10 0.01 0.04 -0.13 0.79 1.57 4.34 0.52
MAX 1.00 10.37 85.50 282.32 710.00 858.00 1071.80 1005.50 667.50 553.50 140.00 29.50 4415.16
MIN 0.00 0.00 0.00 18.50 256.50 540.00 642.50 626.00 331.00 75.50 0.00 0.00 3421.95
NO YRS 60 60 55 55 54 57 61 56 49 48 57 60 31