date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 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
1936 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 z 0.00 z 0.00 z 0.00
1937 0.00 a 0.00 0.00 a 82.50 456.00 661.00 921.73 a 898.50 474.50 88.50 0.00 0.00 3582.73
1938 0.00 0.00 24.50 111.00 323.00 607.00 807.00 786.00 378.00 207.50 35.00 0.00 3279.00
1939 0.00 a 0.00 11.00 94.00 572.50 762.50 865.00 756.83 b 539.00 157.00 0.50 1.00 3759.33
1940 0.00 0.00 0.00 37.00 312.07 a 640.50 834.50 641.50 496.00 200.00 8.00 0.00 3169.57
1941 0.00 0.00 0.00 134.50 l 459.50 582.50 763.00 701.50 497.00 152.50 18.50 0.50 3175.00
1942 0.00 0.00 z 0.50 161.50 o 266.00 567.50 713.50 675.50 347.00 157.50 10.50 0.00 2738.00
1943 0.00 a 0.00 b 25.00 27.50 n 227.85 a 685.00 783.50 712.50 293.00 123.00 0.00 0.00 2849.85
1944 0.00 0.00 0.00 b 24.50 o 453.00 643.50 656.00 726.00 437.00 128.00 0.00 z 0.00 z 3043.50
1945 0.00 z 0.00 z 0.00 z 0.50 n 184.00 408.50 665.50 650.00 355.00 105.50 0.00 z 0.00 z 2368.50
1946 0.00 z 0.00 z 0.00 z 119.00 n 213.00 546.00 708.00 587.50 328.00 176.00 0.00 z 0.00 z 2558.50
1947 0.00 z 0.00 z 0.00 z 22.50 q 146.00 426.21 a 686.13 a 839.58 a 446.00 313.10 a 0.00 z 0.00 z 2857.02
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 277.50 o 774.50 715.00 525.00 58.50 0.00 z 0.00 z 2073.00
1949 0.00 z 0.00 z 0.00 z 86.50 382.50 668.50 808.50 691.00 254.00 171.00 4.82 b 0.00 z 3066.82
1950 0.00 0.00 0.00 8.00 262.00 544.50 586.50 510.50 320.50 223.00 4.50 0.00 a 2459.50
1951 0.00 a 0.00 0.00 41.50 386.50 442.00 663.00 531.00 257.00 110.00 0.00 1.50 2432.50
1952 0.00 0.00 0.00 a 121.00 270.00 614.00 737.00 587.50 384.50 11.50 p 0.00 z 0.00 a 2714.00
1953 0.00 a 0.00 5.00 22.50 306.90 a 622.00 687.50 665.50 357.50 227.00 27.00 0.00 2920.90
1954 0.00 0.00 0.00 0.00 z 0.00 z 643.50 729.50 605.50 343.00 80.00 7.00 0.00 z 2408.50
1955 0.00 a 0.00 a 0.00 126.00 351.00 470.00 832.50 767.00 377.50 128.50 0.00 0.00 3052.50
1956 0.00 0.00 0.00 2.50 209.00 h 672.50 615.00 653.00 282.00 232.00 37.00 0.00 2494.00
1957 0.00 0.00 0.00 a 151.50 250.50 551.00 801.19 b 600.50 296.50 58.50 0.00 0.00 2709.69
1958 0.00 0.00 a 0.00 81.50 329.12 a 416.50 623.74 b 652.50 387.00 166.00 13.00 0.00 i 2669.36
1959 0.00 f 0.00 0.00 59.00 401.50 580.00 670.50 758.50 392.50 30.00 0.00 0.00 2892.00
1960 0.00 0.00 0.00 117.00 311.00 448.45 a 681.00 687.00 418.00 128.00 3.50 0.00 2793.95
1961 0.00 0.00 0.00 16.00 230.00 588.50 672.00 701.50 365.50 160.50 7.50 0.00 2741.50
1962 0.00 0.00 0.50 96.00 438.00 526.50 596.50 598.00 274.00 203.50 0.00 3.50 2736.50
1963 0.00 0.00 21.00 81.50 241.00 632.00 733.50 585.00 386.00 333.00 0.00 0.00 3013.00
1964 0.00 0.00 0.00 89.00 449.00 575.50 811.50 608.50 342.50 97.50 52.00 0.00 a 3025.50
1965 0.00 0.00 0.00 28.50 421.00 521.00 678.50 596.00 240.00 116.50 10.50 0.00 2612.00
1966 0.00 0.00 9.00 21.00 232.50 592.50 744.00 b 592.50 352.50 106.50 0.00 0.00 2650.50
1967 0.00 0.00 21.00 44.00 191.00 558.50 613.50 541.00 327.50 117.00 0.00 0.00 2413.50
1968 0.00 0.00 38.00 100.50 195.50 528.50 670.50 658.50 354.50 161.00 10.00 0.00 2717.00
1969 0.00 0.00 0.00 60.00 342.00 352.00 680.00 694.50 356.00 111.50 0.00 0.00 2596.00
1970 0.00 0.00 0.00 111.00 327.50 603.50 741.00 627.50 361.00 125.50 0.00 0.00 2897.00
1971 0.00 0.00 0.00 73.00 187.00 681.50 590.50 589.00 428.50 236.00 4.50 0.00 2790.00
1972 0.00 0.00 0.00 24.50 376.00 470.50 625.00 662.00 359.50 93.50 0.00 0.00 2611.00
1973 0.00 0.00 5.00 56.00 199.00 606.50 740.00 709.00 380.00 243.00 0.00 0.00 2938.50
1974 0.00 0.00 4.00 112.50 221.00 468.00 799.00 594.50 250.50 122.00 9.50 0.00 2581.00
1975 0.00 0.00 0.00 19.50 370.50 562.50 768.50 659.50 237.00 160.50 25.00 0.00 2803.00
1976 0.00 0.00 12.00 91.50 240.50 598.50 733.50 620.00 311.50 81.00 0.00 0.00 2688.50
1977 0.00 0.00 z 13.00 248.00 534.00 561.50 776.50 546.00 346.50 8.00 3.00 0.00 3036.50
1978 0.00 0.00 4.00 23.50 310.50 514.00 639.50 626.00 507.00 102.00 22.50 0.00 2749.00
1979 0.00 b 0.00 0.00 35.00 243.87 a 524.00 667.50 592.50 424.04 d 14.00 m 2.50 0.00 2489.41
1980 0.00 0.00 0.00 104.00 343.50 539.00 738.50 619.50 372.00 60.50 0.50 0.00 2777.50
1981 0.00 1.00 16.00 95.00 218.00 529.50 639.50 587.00 311.00 68.50 3.00 0.00 2468.50
1982 0.00 0.00 1.50 48.50 376.00 388.50 719.50 603.50 288.00 68.00 2.07 a 3.50 2499.07
1983 0.00 0.00 3.50 46.00 147.50 529.50 802.00 760.50 357.00 75.00 10.00 0.00 2731.00
1984 0.00 0.00 0.00 29.00 174.00 566.50 597.00 634.00 256.00 113.50 1.00 0.00 2371.00
1985 0.00 0.00 0.00 193.00 430.50 472.00 730.50 585.00 406.50 81.50 0.00 0.00 2899.00
1986 0.00 0.00 47.00 113.79 a 349.50 577.00 754.00 523.00 353.50 79.00 0.00 0.00 2796.79
1987 0.00 0.00 14.50 193.50 417.00 665.50 803.50 608.50 380.00 45.00 19.50 0.00 3147.00
1988 0.00 0.00 a 0.00 b 46.00 421.00 662.07 a 795.00 771.00 412.00 60.00 0.00 0.00 3167.07
1989 0.00 0.00 17.00 62.00 286.00 507.00 764.00 639.50 331.00 165.00 0.00 0.00 b 2771.50
1990 0.00 0.00 16.50 144.50 208.50 571.50 0.00 z 591.50 333.00 36.50 25.50 0.00 1927.50
1991 0.00 0.00 12.00 122.00 411.50 675.50 676.00 661.50 318.00 99.50 0.00 0.00 2976.00
1992 0.00 0.00 0.00 42.50 320.00 471.50 526.50 487.50 339.00 126.50 0.00 0.00 2313.50
1993 0.00 0.00 0.00 21.72 a 266.00 461.00 637.50 656.00 199.00 85.00 0.00 0.00 2326.22
1994 0.00 0.00 0.00 105.00 325.00 631.50 610.50 533.50 437.50 134.00 3.00 0.00 2780.00
1995 0.00 0.00 7.00 7.50 223.00 638.50 738.50 810.50 331.50 95.50 0.00 0.00 2852.00
1996 0.00 0.00 0.00 35.00 192.50 542.50 609.00 621.00 365.50 104.00 0.00 0.00 2469.50
1997 0.00 0.00 6.50 47.50 144.50 575.50 656.50 548.50 401.50 185.50 0.00 0.00 2566.00
1998 0.00 0.00 40.50 107.00 483.00 490.50 728.00 661.50 513.50 105.00 7.00 7.00 3143.00
1999 0.00 a 0.00 25.00 89.50 379.50 583.50 857.00 614.50 337.50 101.00 35.50 0.00 3023.00
2000 0.00 4.50 31.50 74.00 329.00 497.00 669.50 675.50 383.00 180.00 22.00 0.00 2866.00
2001 0.00 0.00 0.00 120.00 343.50 536.50 739.00 717.50 323.00 85.00 71.00 1.00 2936.50
2002 0.00 0.00 0.00 124.00 224.00 618.50 817.50 624.50 458.00 64.00 1.00 0.00 2931.50
2003 0.00 0.00 9.00 115.00 253.50 502.50 687.50 746.00 391.50 125.00 0.00 0.00 2830.00
2004 0.00 0.00 7.50 121.50 277.00 0.00 z 637.50 505.00 487.50 96.00 7.50 0.00 2139.50
2005 0.00 0.00 11.50 135.00 243.50 695.50 758.50 643.50 480.00 164.50 9.50 0.00 3141.50
2006 0.00 0.00 0.00 135.00 317.00 557.50 815.00 663.50 288.50 92.00 8.50 0.00 2877.00
2007 0.00 0.00 29.00 107.50 426.00 608.00 712.50 683.79 e 472.00 240.00 0.00 0.00 3278.79
2008 0.00 0.00 0.00 71.50 225.50 548.00 700.50 616.50 413.50 105.50 51.50 0.00 2732.50
2009 0.00 0.00 3.50 84.50 305.50 532.00 550.00 584.00 425.50 17.50 14.00 0.00 2516.50
2010 0.00 0.00 22.50 163.00 365.00 580.50 778.50 778.50 346.50 165.50 9.00 0.00 3209.00
2011 0.00 a 0.00 1.03 a 48.50 317.00 582.50 848.88 a 690.27 a 327.50 163.50 7.24 a 0.00 2986.42
2012 0.00 a 0.00 177.98 b 87.93 a 445.88 a 646.00 896.93 a 660.82 a 374.48 a 50.00 j 0.00 z 0.00 z 3290.03
Period of Record Statistics
MEAN 0.00 0.08 9.77 82.28 312.37 562.85 718.53 648.79 368.47 128.58 9.05 0.27 2826.43
S.D. 0.00 0.55 23.12 49.35 97.51 79.85 83.39 79.74 73.34 63.81 14.28 1.05 294.16
SKEW 0.00 7.62 5.66 0.67 0.35 -0.24 0.07 0.54 0.24 0.83 2.28 4.89 0.66
MAX 0.00 4.50 177.98 248.00 572.50 762.50 921.73 898.50 539.00 333.00 71.00 7.00 3759.33
MIN 0.00 0.00 0.00 2.50 144.50 352.00 526.50 487.50 199.00 8.00 0.00 0.00 2313.50
NO YRS 70 69 71 67 73 74 75 76 76 73 69 67 57