date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1938 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
1939 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
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
1947 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
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1953 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
1954 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
1955 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
1956 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
1957 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
1958 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
1959 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
1960 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
1961 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
1962 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 612.00 f 854.00 874.50 494.00 379.00 20.00 37.00 2658.50
1963 0.00 0.00 79.50 261.00 e 489.50 870.00 b 959.00 838.50 656.50 555.00 73.00 0.00 4782.00
1964 0.00 0.00 9.50 260.00 679.50 838.00 148.00 z 613.00 f 582.00 261.00 168.00 0.00 q 2798.00
1965 0.00 0.00 g 0.00 95.00 629.50 748.39 b 863.00 0.00 z 436.00 313.50 49.00 0.50 3134.89
1966 0.00 4.50 72.50 121.00 395.50 811.50 1064.50 858.00 585.50 282.50 32.68 b 0.00 4228.18
1967 0.00 0.00 63.00 226.00 393.00 829.14 a 881.50 797.22 a 577.00 278.48 a 2.50 0.00 c 4047.84
1968 0.00 0.00 125.55 a 271.11 c 442.50 802.50 932.50 904.50 631.50 364.50 22.50 9.00 4506.16
1969 0.00 0.00 0.00 279.00 612.00 636.50 987.00 974.00 661.00 242.50 40.50 0.00 4432.50
1970 0.00 a 0.00 0.00 236.50 638.00 898.50 995.00 898.00 612.50 310.00 21.50 5.50 4615.50
1971 0.00 0.00 11.00 262.50 417.50 954.00 823.50 838.50 660.50 455.50 37.00 0.00 4460.00
1972 0.00 0.00 8.00 125.50 612.00 704.00 812.50 844.50 520.50 196.00 7.50 0.00 3830.50
1973 0.00 0.00 61.50 159.00 392.50 747.50 930.50 850.50 532.00 470.50 0.00 z 0.50 4144.50
1974 0.00 0.00 15.50 239.00 424.50 716.50 1068.50 857.50 492.41 a 308.50 39.00 0.00 4161.41
1975 0.00 0.00 0.00 92.00 612.50 803.00 1032.00 996.50 503.00 463.85 d 147.60 e 4.00 4654.45
1976 0.00 10.50 92.00 330.00 c 489.50 916.50 1060.50 941.50 611.00 210.00 5.50 0.00 a 4667.00
1977 0.00 t 0.00 i 114.50 431.50 828.00 831.21 a 1049.50 880.73 c 716.50 283.00 116.25 b 0.00 b 5251.19
1978 0.00 z 0.00 c 38.00 211.50 659.50 853.50 985.50 976.00 800.00 300.00 84.00 0.00 c 4908.00
1979 0.00 0.00 7.00 201.00 521.50 834.00 1019.50 913.00 0.00 z 314.00 47.50 0.50 3858.00
1980 0.00 c 0.00 18.50 308.00 700.60 a 878.00 1088.00 959.00 689.50 256.50 74.50 0.00 4972.60
1981 5.50 55.50 113.50 399.50 574.50 881.11 c 884.50 f 1003.50 650.17 a 265.00 91.50 0.00 4039.78
1982 0.00 0.00 15.00 187.50 706.50 674.50 1038.00 902.00 600.50 0.00 z 0.00 z 23.50 4147.50
1983 0.00 0.00 a 44.50 102.50 405.50 812.50 1120.50 1077.00 625.34 a 260.50 65.50 0.00 4513.84
1984 0.00 0.00 0.00 170.50 432.50 847.00 881.50 953.50 579.00 397.66 b 31.00 7.50 4300.16
1985 0.00 1.00 53.00 425.50 713.50 724.00 970.00 827.50 641.50 281.00 25.50 0.00 d 4662.50
1986 0.00 f 0.00 a 71.00 405.50 628.55 b 888.00 1020.00 790.00 617.00 278.00 14.00 0.00 4712.05
1987 0.00 0.00 92.00 396.50 689.00 891.00 1062.50 860.00 639.50 149.50 85.50 0.50 4866.00
1988 0.00 0.00 18.00 181.50 693.50 909.50 1044.00 1040.50 617.50 137.50 22.00 0.00 4664.00
1989 0.50 0.00 49.00 200.00 498.00 754.50 1008.50 881.00 565.50 317.50 8.50 0.00 4283.00
1990 0.00 0.00 55.50 250.50 452.00 807.50 911.50 904.00 690.00 242.50 109.50 0.00 4423.00
1991 0.00 0.50 46.50 327.50 713.00 1048.00 985.00 987.50 601.00 289.50 5.50 0.00 5004.00
1992 0.00 0.00 40.00 158.00 620.50 766.00 816.50 823.50 612.50 300.00 7.50 0.00 4144.50
1993 0.00 0.00 10.50 163.00 560.00 758.00 970.50 976.50 462.00 290.50 25.50 0.00 4216.50
1994 0.00 7.50 36.00 274.00 632.50 895.50 891.50 837.50 705.00 374.00 74.00 0.00 4727.50
1995 0.00 0.00 88.50 114.00 463.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 666.00
1996 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 779.50 864.50 868.50 606.50 284.00 15.00 a 0.00 3418.00
1997 0.00 0.00 20.00 170.50 300.50 828.50 918.50 828.00 639.50 324.50 8.00 0.00 4038.00
1998 0.00 18.00 70.50 277.00 705.00 730.50 985.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2786.00
1999 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 53.50 z 95.00 1.00 96.00
2000 0.00 19.50 102.00 182.00 546.50 719.00 923.50 895.50 560.50 346.50 64.00 0.00 4359.00
2001 0.00 0.00 a 0.00 72.50 k 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
2002 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 689.00 168.00 17.50 2.50 877.00
2003 0.00 3.00 74.50 244.50 492.00 761.50 944.00 967.50 606.00 256.50 21.00 0.00 4370.50
2004 0.00 0.00 57.00 230.50 461.50 719.50 909.50 730.50 721.50 285.00 57.50 0.00 4172.50
2005 0.00 a 2.50 47.00 283.00 445.00 963.50 1020.00 894.50 705.00 324.50 63.50 0.00 4748.50
2006 0.00 0.00 a 20.00 332.00 548.00 817.00 1077.00 926.00 523.00 186.50 49.00 0.00 4478.50
2007 0.00 0.00 102.50 245.00 681.00 873.50 986.00 924.00 674.00 419.00 14.00 0.00 a 4919.00
2008 0.00 0.00 0.00 114.50 272.50 666.00 925.00 835.50 644.50 233.50 91.00 0.00 3782.50
2009 0.00 2.00 33.58 a 160.00 507.88 a 738.50 772.00 794.00 657.00 116.00 83.50 0.00 3864.47
2010 0.00 0.00 46.50 345.00 565.00 808.50 1044.50 1037.00 560.50 338.50 53.00 0.00 4798.50
2011 0.00 0.00 3.50 145.00 510.00 811.61 b 1108.25 a 925.72 b 577.00 343.00 46.61 b 0.00 4470.69
2012 0.00 c 0.00 341.52 a 219.83 a 673.73 a 865.86 a 1144.00 882.00 528.89 c 199.00 53.89 c 6.72 a 4915.43
2013 0.00 0.00 b 0.00 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
Period of Record Statistics
MEAN 0.13 2.71 49.33 235.10 552.81 813.32 972.18 899.44 610.02 296.78 49.71 2.10 4459.45
S.D. 0.82 9.01 56.50 91.26 124.08 84.20 89.67 74.30 74.18 88.92 38.67 6.51 331.08
SKEW 6.40 4.77 2.97 0.44 -0.13 0.23 -0.24 0.28 -0.12 0.50 1.02 4.19 -0.27
MAX 5.50 55.50 341.52 431.50 828.00 1048.00 1144.00 1077.00 800.00 555.00 168.00 37.00 5004.00
MIN 0.00 0.00 0.00 92.00 272.50 636.50 772.00 730.50 436.00 116.00 2.50 0.00 3782.50
NO YRS 45 46 48 46 46 46 45 44 46 46 46 47 35