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
1922 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 574.50 196.50 36.00 0.00 807.00
1923 0.00 0.00 a 0.50 128.00 384.50 796.00 853.00 640.00 494.50 165.00 14.44 c 0.00 3475.94
1924 0.00 0.00 0.00 76.50 177.00 513.50 678.00 686.00 334.00 265.05 a 0.00 z 0.00 z 2730.05
1925 0.00 z 0.00 r 12.50 166.50 274.50 669.50 526.00 i 767.50 513.00 51.00 6.50 0.00 2461.00
1926 0.00 0.00 0.00 65.50 420.00 510.00 755.00 709.00 382.00 126.50 2.50 0.00 2970.50
1927 0.00 0.00 26.00 98.00 251.50 549.00 689.00 549.50 551.00 211.32 a 1.50 0.00 2926.82
1928 0.00 0.00 a 15.00 38.50 402.00 488.00 781.00 714.50 329.50 237.50 15.50 0.00 3021.50
1929 0.00 0.00 4.50 125.00 324.00 575.50 769.50 678.50 490.00 195.50 9.50 0.00 3172.00
1930 0.00 15.50 13.00 130.50 425.50 647.00 782.00 758.50 478.50 245.50 74.50 0.00 a 3570.50
1931 0.00 1.00 0.00 139.00 344.50 746.50 849.00 658.50 644.00 280.50 80.50 0.00 3743.50
1932 0.00 5.00 0.00 78.00 370.00 713.50 820.50 749.50 399.50 109.50 7.50 2.50 3255.50
1933 0.00 0.00 0.00 67.00 429.00 864.00 839.50 0.00 z 586.50 132.50 22.50 0.00 2941.00
1934 0.00 0.00 0.00 53.00 559.50 714.50 831.00 606.50 347.50 229.50 9.00 0.00 3350.50
1935 0.00 0.00 0.00 85.50 264.50 481.00 922.50 713.50 377.00 150.00 0.00 0.00 2994.00
1936 0.00 0.00 0.50 32.50 468.00 535.50 934.00 716.50 479.00 112.00 0.00 0.00 3278.00
1937 0.00 0.00 0.00 48.50 393.50 636.00 879.50 908.50 435.50 102.00 1.00 0.00 a 3404.50
1938 0.00 0.00 46.50 138.50 360.50 582.00 800.00 781.00 441.50 304.50 62.00 0.00 3516.50
1939 0.00 0.00 29.50 100.50 487.50 650.00 853.50 755.00 518.50 177.00 16.00 2.00 3589.50
1940 0.00 0.00 0.00 39.50 302.50 581.00 788.00 692.00 534.00 209.50 20.50 0.00 3167.00
1941 0.00 0.00 0.00 230.00 534.50 743.50 856.00 728.00 539.00 203.50 23.50 5.00 3863.00
1942 0.00 0.00 0.00 282.00 349.50 658.50 764.50 757.00 438.00 279.50 16.50 0.00 3545.50
1943 0.00 0.00 19.50 80.50 372.50 748.00 920.50 790.00 385.00 243.50 0.00 0.00 3559.50
1944 6.50 0.00 0.00 67.50 553.50 718.00 836.50 843.50 505.50 224.00 69.00 0.00 3824.00
1945 0.00 0.00 115.50 129.50 223.00 542.00 730.50 760.50 456.00 171.50 14.50 0.00 3143.00
1946 0.00 0.00 99.00 167.00 341.00 631.00 821.50 705.50 468.00 293.50 14.00 3.00 3543.50
1947 0.00 0.00 3.50 46.00 254.50 569.00 806.00 982.50 536.50 468.00 21.50 0.00 3687.50
1948 0.00 0.00 5.00 167.00 388.50 639.50 824.00 811.00 616.00 203.00 45.00 0.00 3699.00
1949 0.00 0.00 0.00 173.00 425.50 789.50 851.50 816.00 401.50 292.43 a 21.00 0.00 b 3770.43
1950 0.00 0.00 0.00 b 15.00 336.50 638.00 700.50 599.00 474.50 297.00 11.50 0.00 3072.00
1951 0.00 0.00 2.00 89.00 532.50 556.50 779.00 618.00 381.50 197.00 1.50 9.50 3166.50
1952 0.00 0.00 5.00 254.00 383.00 699.00 825.00 724.50 536.00 107.50 21.00 0.00 3555.00
1953 0.00 0.00 9.82 a 45.50 413.50 691.50 793.00 820.00 494.50 375.00 97.00 0.00 3739.82
1954 0.00 0.00 0.00 135.50 263.00 725.50 783.50 698.57 b 411.50 196.50 27.00 0.00 3241.07
1955 0.00 0.00 9.50 262.00 517.50 665.50 975.50 900.50 495.50 247.50 1.50 0.00 4075.00
1956 0.00 0.00 0.00 37.00 345.00 707.00 693.50 739.00 381.50 380.50 80.50 0.00 3364.00
1957 0.00 0.50 0.50 229.00 377.00 638.50 863.00 730.50 413.79 a 193.00 16.00 0.00 3461.79
1958 0.00 0.50 0.00 140.00 345.00 493.00 750.50 724.50 496.00 237.50 42.00 0.00 3229.00
1959 0.00 0.00 5.00 96.00 514.50 696.50 796.50 864.00 517.50 124.00 0.00 0.00 3614.00
1960 0.00 0.00 0.00 147.50 391.00 566.50 750.00 793.00 499.00 231.50 16.50 4.50 3399.50
1961 0.00 1.00 10.00 45.00 309.00 651.50 763.50 774.00 495.50 273.00 24.00 1.00 3347.50
1962 0.00 0.00 10.00 107.00 525.50 627.50 709.50 714.55 a 366.50 281.00 6.50 19.50 3367.55
1963 0.00 0.00 32.50 143.50 328.00 689.00 815.00 664.00 435.00 429.50 25.00 0.00 3561.50
1964 0.00 0.00 0.00 138.00 503.50 621.50 829.00 619.50 432.50 190.00 97.50 0.00 3431.50
1965 0.00 0.00 0.00 40.00 508.50 560.50 688.50 677.00 333.00 239.00 25.50 0.00 b 3072.00
1966 0.00 0.00 22.50 43.00 256.00 674.50 880.00 675.00 427.00 150.50 4.00 0.00 3132.50
1967 0.00 0.00 22.50 108.00 207.50 609.50 691.50 600.50 425.00 154.00 13.00 0.00 2831.50
1968 0.00 0.00 60.50 133.00 300.50 617.50 745.50 723.00 0.00 z 294.00 7.50 0.00 2881.50
1969 0.00 0.00 a 0.50 132.50 398.50 416.00 722.50 780.00 450.00 158.50 8.00 0.00 3066.50
1970 0.00 0.00 0.00 164.50 379.50 674.00 845.00 729.50 487.00 255.50 8.50 0.00 3543.50
1971 0.00 0.00 0.00 90.50 264.00 726.50 665.00 624.00 507.00 395.50 20.50 0.00 3293.00
1972 0.00 0.00 0.00 49.00 469.50 570.00 729.50 729.50 403.00 148.50 4.00 0.00 3103.00
1973 3.00 0.00 24.00 111.00 282.00 659.00 794.00 799.00 456.00 331.00 5.50 0.00 3464.50
1974 0.00 0.00 5.00 160.50 288.50 514.50 836.50 697.00 309.50 183.00 31.50 0.00 3026.00
1975 0.00 0.00 0.50 41.00 525.00 665.00 863.50 711.50 339.50 272.28 a 93.00 0.00 3511.28
1976 0.00 1.00 11.50 152.50 318.50 734.00 781.50 726.00 414.00 130.50 4.00 0.00 3273.50
1977 0.00 2.00 26.00 279.50 648.00 588.00 881.50 579.50 465.00 a 156.50 53.50 0.00 3679.50
1978 0.00 0.00 0.50 50.00 465.50 600.50 742.00 760.50 567.50 177.00 53.50 0.00 3417.00
1979 0.00 0.00 1.50 76.00 289.50 575.50 791.00 677.00 515.50 131.50 9.50 0.00 3067.00
1980 0.00 0.00 1.50 163.00 496.00 592.00 819.50 767.50 435.00 113.50 18.00 0.00 3406.00
1981 0.00 15.00 24.50 139.00 310.50 643.00 769.00 748.50 390.50 120.00 46.50 0.00 3206.50
1982 0.00 0.00 2.00 80.50 565.00 430.50 823.00 646.50 397.50 188.00 20.50 8.00 3161.50
1983 0.00 1.00 0.00 49.00 199.50 583.00 915.50 832.00 487.00 131.50 15.50 0.00 3214.00
1984 0.00 2.50 0.00 111.00 264.00 673.50 712.50 793.50 350.50 241.50 5.50 0.00 3154.50
1985 0.00 0.00 4.00 193.50 414.50 485.50 692.00 627.00 410.50 106.00 9.00 0.00 2942.00
1986 0.00 0.00 26.00 178.50 466.00 543.00 785.00 580.00 412.00 119.00 10.50 0.00 3120.00
1987 0.00 0.00 33.50 181.50 409.00 696.50 807.00 655.50 428.50 44.50 30.50 0.00 3286.50
1988 0.00 a 0.00 0.00 62.50 464.00 651.00 802.00 764.00 414.50 73.50 5.00 0.00 3236.50
1989 0.00 0.00 23.50 59.00 343.50 517.00 793.50 695.00 359.00 192.00 0.00 0.00 2982.50
1990 0.00 0.00 35.50 230.50 243.50 579.50 679.50 654.00 409.50 82.00 0.00 z 0.00 z 2914.00
1991 0.00 z 0.00 z 7.50 158.00 500.00 695.00 706.00 730.50 346.50 77.50 1.50 0.00 3222.50
1992 0.00 0.00 0.00 57.50 370.50 476.50 520.50 516.00 358.50 141.00 0.00 0.00 2440.50
1993 0.00 0.00 12.50 30.50 305.50 506.00 722.50 699.50 237.50 62.00 0.00 0.00 2576.00
1994 0.00 0.00 2.00 65.00 335.00 646.00 667.00 576.50 463.00 184.00 17.50 0.00 2956.00
1995 0.00 0.00 22.00 3.50 287.50 744.00 745.00 818.00 330.00 164.50 0.00 0.00 3114.50
1996 0.00 0.00 2.00 29.50 263.00 612.00 625.50 673.00 443.00 129.50 2.50 0.00 2780.00
1997 0.00 0.00 3.00 68.50 143.00 657.50 695.00 548.50 425.00 195.00 13.00 0.00 2748.50
1998 0.00 0.00 29.50 122.00 513.50 567.50 714.00 753.00 513.00 172.00 17.50 7.00 3409.00
1999 0.00 0.00 4.50 109.50 436.00 635.50 840.50 639.00 388.50 85.50 48.00 0.00 3187.00
2000 0.00 6.00 42.50 62.00 395.00 537.50 681.50 659.50 399.31 a 196.00 37.00 0.00 3016.31
2001 0.00 0.00 0.00 117.00 405.67 b 631.00 718.50 747.50 373.50 111.50 94.50 2.50 3201.67
2002 0.00 0.00 0.00 z 97.50 210.50 649.00 890.50 700.00 481.00 89.00 2.00 0.00 3119.50
2003 0.00 0.00 0.00 z 79.50 270.00 545.00 706.00 748.00 466.00 121.00 0.50 0.00 2936.00
2004 0.00 0.00 2.50 69.00 265.50 498.50 659.50 510.00 0.00 z 143.50 11.00 0.00 2159.50
2005 0.00 0.00 20.00 123.00 291.50 745.50 778.50 691.50 482.00 217.50 10.50 0.00 3360.00
2006 0.00 0.00 4.00 159.50 393.00 588.00 829.50 679.00 321.00 88.00 16.00 0.00 3078.00
2007 0.00 0.00 0.00 z 91.00 427.50 642.00 742.00 724.50 475.50 284.50 10.50 0.00 a 3397.50
2008 0.00 0.00 0.00 84.50 242.00 595.50 728.50 616.50 399.00 82.00 38.00 0.00 2786.00
2009 0.00 0.00 0.00 60.00 265.00 500.50 551.00 589.50 484.00 61.00 13.00 0.00 2524.00
2010 0.00 0.00 18.00 161.50 463.50 599.50 815.50 778.00 322.50 163.00 24.00 0.00 3345.50
2011 0.00 3.50 4.00 37.50 335.50 557.50 834.00 703.50 401.00 198.00 14.00 0.00 3088.50
2012 0.00 0.00 167.00 55.50 447.00 648.00 858.00 648.00 338.04 b 80.50 j 0.00 z 0.00 z 3161.54
Period of Record Statistics
MEAN 0.11 0.62 13.12 108.42 372.31 620.17 779.19 710.83 439.64 191.06 22.11 0.73 3272.15
S.D. 0.76 2.44 25.69 62.09 103.63 86.09 80.67 85.39 75.11 86.34 24.66 2.64 311.28
SKEW 7.52 5.17 3.78 0.81 0.20 0.05 -0.39 0.17 0.13 0.78 1.68 5.03 -0.15
MAX 6.50 15.50 167.00 282.00 648.00 864.00 975.50 982.50 644.00 468.00 97.50 19.50 4075.00
MIN 0.00 0.00 0.00 3.50 143.00 416.00 520.50 510.00 237.50 44.50 0.00 0.00 2440.50
NO YRS 88 88 87 90 90 90 89 89 89 90 88 88 79