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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1949 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
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 0.00 z 0.00 z 0.00 z 0.00
1951 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
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 614.44 c 152.42 a 60.00 0.00 826.86
1953 0.00 0.00 20.00 81.00 477.00 816.00 926.00 892.00 593.00 374.50 93.50 0.00 4273.00
1954 0.00 0.00 2.50 193.00 313.62 a 762.50 882.00 758.00 543.00 236.00 47.00 0.00 3737.62
1955 0.00 0.00 4.00 278.00 553.50 737.00 1045.50 974.00 580.50 288.50 6.50 0.00 4467.50
1956 0.00 0.00 a 0.00 82.50 434.00 817.00 814.00 830.00 470.00 385.00 88.50 0.00 3921.00
1957 0.00 0.00 3.00 254.50 436.00 770.50 964.10 a 849.00 495.50 204.50 19.00 l 0.00 3977.10
1958 0.00 0.00 0.00 159.50 439.50 588.50 841.50 913.47 a 588.50 313.44 d 77.50 0.00 3921.91
1959 0.00 0.00 0.00 154.00 634.50 831.00 898.50 1004.00 658.50 191.00 12.93 a 0.00 4384.43
1960 0.00 0.00 16.00 242.50 479.00 696.50 862.32 a 906.50 660.00 289.50 45.50 12.00 4209.82
1961 0.00 0.00 25.00 h 93.00 405.00 771.00 909.00 907.50 625.50 340.00 38.00 4.50 4093.50
1962 0.00 0.00 10.50 184.00 623.00 728.00 841.00 862.50 499.50 361.00 2.50 i 22.00 4131.50
1963 0.00 0.00 43.50 244.14 a 439.50 845.69 a 972.00 830.00 593.50 531.50 56.00 0.00 a 4555.83
1964 1.00 0.00 11.50 233.00 666.00 780.50 979.00 777.00 535.00 212.00 150.00 0.00 4345.00
1965 0.00 0.00 0.00 81.00 635.50 684.31 a 860.00 830.00 469.66 a 313.50 44.50 2.00 3920.47
1966 0.00 0.00 25.00 114.00 400.50 825.00 1013.50 834.50 573.00 262.50 28.50 0.00 a 4076.50
1967 0.00 0.00 37.50 182.00 347.00 782.50 857.00 752.00 559.00 252.50 20.50 0.00 3790.00
1968 0.00 0.00 127.00 221.50 447.50 760.00 931.50 888.00 655.50 375.00 32.50 2.50 4441.00
1969 0.00 0.00 3.00 212.00 553.50 551.00 916.50 951.00 581.00 269.50 29.50 0.00 4067.00
1970 0.00 0.00 i 0.00 221.25 b 490.50 817.50 982.50 902.00 623.00 342.00 27.50 6.50 4412.75
1971 0.00 0.00 0.00 194.50 428.00 906.50 857.00 806.00 681.50 501.00 61.50 0.00 4436.00
1972 0.00 0.00 0.00 114.50 628.50 728.00 916.00 892.50 590.50 241.00 30.00 0.00 4141.00
1973 1.00 0.00 80.00 176.50 408.50 845.50 999.15 e 940.50 644.00 475.50 16.00 2.50 4589.15
1974 0.00 0.00 17.00 208.20 e 389.00 670.00 967.50 811.50 416.00 233.50 46.50 0.00 a 3759.20
1975 0.00 b 0.00 a 2.50 79.00 639.50 759.50 947.50 829.00 426.00 306.00 155.00 5.00 4149.00
1976 0.00 a 1.50 30.00 236.50 433.50 836.38 a 948.00 780.50 495.00 152.00 3.50 0.00 d 3916.88
1977 0.00 b 0.00 64.50 307.50 725.00 699.00 1006.50 734.50 564.50 207.18 a 84.50 0.00 4393.18
1978 0.00 0.00 5.00 83.00 537.50 721.50 829.00 848.50 635.50 183.00 57.00 0.00 3900.00
1979 0.00 0.00 6.50 152.50 389.50 705.50 919.00 772.50 583.50 165.00 24.00 0.00 3718.00
1980 0.00 0.00 2.50 208.00 581.00 702.93 a 947.50 863.00 510.00 133.00 19.00 0.00 3966.93
1981 0.00 13.50 46.50 208.00 424.50 762.50 894.50 862.00 510.50 159.00 69.50 0.00 3950.50
1982 0.00 0.00 10.50 125.00 636.50 590.50 929.00 759.00 488.00 257.50 29.00 21.50 3846.50
1983 0.00 0.50 21.50 131.00 306.00 712.00 997.00 926.50 568.00 239.50 51.00 0.00 3953.00
1984 0.00 3.50 0.00 184.00 393.50 804.50 866.00 842.50 439.00 254.50 11.00 0.00 3798.50
1985 0.00 0.00 9.50 236.00 538.00 637.24 a 863.00 757.50 591.50 225.00 22.00 0.00 3879.74
1986 0.00 0.00 64.50 291.50 581.00 0.00 z 956.00 745.00 568.00 211.00 17.00 0.00 3434.00
1987 0.00 0.00 42.50 292.50 549.50 857.00 988.00 842.50 585.00 0.00 z 69.00 0.00 4226.00
1988 0.00 a 0.00 4.50 167.50 600.00 919.50 1054.00 995.00 573.50 139.00 18.50 0.00 4471.50
1989 0.00 0.00 22.00 117.00 446.00 659.50 925.50 848.00 512.00 275.00 8.00 0.00 3813.00
1990 0.00 0.00 53.00 252.00 358.00 726.50 872.50 831.00 613.50 181.50 72.00 0.00 3960.00
1991 0.00 1.00 26.00 229.00 595.00 857.50 866.50 874.00 467.50 202.00 5.00 0.00 4123.50
1992 0.00 0.00 1.00 94.50 488.50 642.00 732.00 718.00 489.50 206.50 1.50 0.00 3373.50
1993 0.00 0.00 21.00 84.00 483.00 668.00 898.00 863.50 408.62 a 184.50 10.50 0.00 3621.12
1994 0.00 0.00 17.50 156.00 509.50 822.00 867.00 759.00 659.50 298.50 49.00 0.00 4138.00
1995 0.00 0.00 51.50 53.00 439.50 885.50 978.00 1005.00 473.00 279.00 2.00 0.00 4166.50
1996 0.00 0.00 2.50 111.00 362.50 760.50 840.50 870.00 595.00 227.00 16.50 0.00 3785.50
1997 0.00 3.00 11.50 158.00 303.50 789.50 890.50 757.00 598.00 284.00 17.00 0.00 3812.00
1998 0.00 4.00 80.00 227.50 0.00 z 743.50 953.50 918.50 714.50 285.00 51.00 29.50 4007.00
1999 0.00 0.00 32.00 195.50 589.50 778.50 1022.50 773.00 0.00 z 185.00 89.50 1.50 3667.00
2000 0.00 13.00 95.50 151.00 552.00 696.50 850.00 853.50 509.50 280.50 40.50 0.00 z 4042.00
2001 0.00 m 0.00 0.00 252.00 575.00 750.50 960.00 980.50 535.50 223.50 125.00 20.50 4422.50
2002 1.00 0.00 2.00 199.00 334.50 795.00 1032.50 862.50 671.50 162.50 25.00 2.50 4088.00
2003 0.00 0.00 a 46.50 173.00 430.00 709.50 901.50 938.00 590.50 236.50 17.00 0.50 4043.00
2004 0.00 0.00 36.00 185.00 408.00 683.00 857.50 738.50 718.50 275.50 61.00 0.00 3963.00
2005 0.00 0.00 35.00 228.00 418.50 932.50 995.50 931.00 706.50 342.50 55.00 0.00 4644.50
2006 0.00 0.00 16.00 285.00 541.50 777.50 1038.50 882.00 526.00 164.00 46.50 1.00 4278.00
2007 0.00 0.00 b 95.00 205.50 590.00 832.00 929.00 900.50 642.50 415.00 22.00 0.00 4631.50
2008 0.00 0.00 0.50 190.50 381.50 788.00 939.50 856.50 630.00 253.00 81.00 0.00 4120.50
2009 0.00 0.00 18.00 142.00 508.00 762.50 812.50 826.00 678.00 131.50 66.50 0.00 3945.00
2010 0.00 0.00 58.00 307.00 581.00 767.00 984.50 955.50 537.00 340.50 42.50 0.00 4573.00
2011 0.00 0.00 4.50 99.50 464.00 744.50 1061.48 b 925.35 a 535.50 333.00 38.00 0.00 a 4205.83
2012 0.00 0.00 292.43 a 189.50 630.00 867.50 1101.50 880.00 575.00 167.50 h 0.00 z 0.00 z 4535.93
Period of Record Statistics
MEAN 0.05 0.68 29.30 181.85 490.73 760.37 928.18 856.95 569.59 263.44 44.56 2.27 4087.05
S.D. 0.22 2.51 45.15 65.13 102.85 80.50 73.04 73.34 75.81 88.94 34.02 6.15 291.53
SKEW 4.09 4.45 3.71 -0.04 0.13 -0.22 0.02 0.06 -0.11 0.91 1.28 3.11 0.16
MAX 1.00 13.50 292.43 307.50 725.00 932.50 1101.50 1005.00 718.50 531.50 155.00 29.50 4644.50
MIN 0.00 0.00 0.00 53.00 303.50 551.00 732.00 718.00 408.62 131.50 1.50 0.00 3373.50
NO YRS 59 59 59 60 59 59 60 60 60 59 58 59 49