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
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 437.00 q 626.50 283.50 9.50 0.00 919.50
1961 0.00 5.70 a 29.97 a 61.00 433.50 834.00 889.50 968.00 295.50 k 266.50 15.00 0.00 3503.17
1962 0.00 0.00 0.00 157.00 602.50 757.00 845.50 913.00 303.00 j 328.50 18.00 22.00 3643.50
1963 0.00 0.00 88.50 230.50 463.00 868.50 999.00 877.50 651.50 498.50 32.00 0.00 4709.00
1964 0.00 0.00 4.00 211.00 636.00 825.50 1062.50 823.00 546.50 262.00 94.50 0.00 4465.00
1965 0.00 0.00 0.00 121.50 544.00 770.69 a 901.00 844.00 328.00 275.50 35.00 0.00 3819.69
1966 0.00 a 0.00 a 39.00 72.50 405.50 812.00 1064.00 819.00 569.50 228.00 2.00 0.00 4011.50
1967 0.00 0.00 30.50 153.50 355.50 718.00 894.50 827.00 574.50 242.50 21.00 0.00 3817.00
1968 0.00 0.00 119.00 232.00 402.00 796.00 927.50 901.50 590.00 297.00 12.50 0.00 4277.50
1969 0.00 0.00 0.00 205.50 569.00 606.00 932.00 978.00 594.50 182.00 48.50 0.00 4115.50
1970 0.00 0.00 0.00 153.00 507.00 862.50 1017.50 913.00 584.00 244.00 0.00 0.00 4281.00
1971 0.00 0.00 4.50 216.21 a 432.50 855.50 789.00 866.50 612.50 337.00 7.00 0.00 4120.71
1972 0.00 0.00 0.50 119.00 620.50 775.50 886.00 897.00 509.00 197.00 7.00 0.00 4011.50
1973 0.00 0.00 27.00 150.50 468.50 801.00 929.50 943.00 509.00 378.50 13.50 0.00 4220.50
1974 0.00 0.00 0.00 199.00 386.50 769.50 1078.50 788.00 468.50 302.00 28.00 0.00 4020.00
1975 0.00 0.00 0.00 52.00 602.00 761.50 1052.00 893.50 460.50 317.50 90.50 0.00 4229.50
1976 0.00 0.00 29.00 309.50 519.00 894.00 1029.50 991.00 630.50 200.50 8.00 0.00 4611.00
1977 0.00 0.00 46.00 388.00 800.00 825.00 1027.00 791.00 586.50 228.50 57.00 0.00 4749.00
1978 0.00 0.00 26.00 107.00 613.00 781.50 953.00 944.50 745.00 273.00 78.00 0.00 4521.00
1979 0.00 0.00 0.00 119.00 376.00 772.00 946.53 a 833.00 666.50 208.00 17.50 0.00 3938.53
1980 0.00 0.00 0.00 292.00 657.50 781.00 1013.00 895.50 572.00 182.50 38.50 0.00 4432.00
1981 0.00 12.00 68.50 257.50 515.50 763.50 978.50 895.38 a 570.00 239.50 89.00 0.00 4389.38
1982 0.00 0.00 4.00 193.00 642.50 657.50 1016.50 913.00 582.50 261.50 8.50 13.00 4292.00
1983 0.00 1.00 10.00 110.50 440.00 768.50 1093.00 1078.00 632.00 227.50 43.00 0.00 4403.50
1984 0.00 0.00 0.00 172.00 494.00 822.50 965.00 1003.50 450.50 310.50 19.00 0.00 4237.00
1985 0.00 0.00 29.50 264.11 b 653.00 655.50 921.50 731.00 490.50 143.50 0.00 0.00 3888.61
1986 0.00 0.00 42.50 197.00 532.00 821.38 a 994.50 794.00 528.50 240.50 6.50 0.00 4156.88
1987 0.00 0.00 68.00 420.00 700.50 904.00 1070.00 859.00 634.50 155.50 55.00 0.00 4866.50
1988 0.00 0.00 3.50 223.50 786.50 1018.50 1142.50 996.50 628.50 161.50 12.00 0.00 4973.00
1989 0.00 0.00 1.50 171.50 548.70 a 782.50 1069.50 926.00 593.50 305.50 0.00 0.00 4398.70
1990 0.00 0.00 40.50 232.00 468.00 841.50 914.50 908.50 675.50 190.50 46.50 1.00 4318.50
1991 0.00 2.00 20.50 235.00 680.00 952.00 995.50 981.00 579.50 218.50 4.00 0.00 4668.00
1992 0.00 0.00 13.00 133.50 656.50 750.50 749.00 752.00 556.00 236.50 0.00 0.00 3847.00
1993 0.50 0.00 25.50 157.50 543.50 721.00 918.50 918.00 439.50 227.50 0.50 0.00 3952.00
1994 0.00 0.00 6.50 191.50 635.50 855.00 920.00 852.00 679.50 319.00 35.50 0.00 4494.50
1995 0.00 0.00 49.50 77.50 482.00 932.00 987.50 1014.00 578.50 226.00 0.00 0.00 4347.00
1996 0.00 0.00 0.50 94.00 466.00 856.00 899.00 943.50 629.50 304.50 3.00 0.00 4196.00
1997 0.00 0.00 2.50 176.50 411.50 922.50 951.50 877.50 700.00 348.00 0.00 0.00 4390.00
1998 0.00 13.50 47.50 294.50 737.50 777.00 1016.50 993.50 761.00 324.00 26.00 8.50 4999.50
1999 0.00 a 0.00 38.50 199.00 580.00 816.50 1075.50 909.00 590.00 241.50 79.50 0.50 4530.00
2000 0.00 11.50 106.00 186.00 603.50 712.00 956.50 940.50 596.50 359.00 43.50 0.00 4515.00
2001 0.00 0.00 0.00 192.00 590.50 835.00 1018.50 967.50 521.50 131.50 153.75 b 0.00 4410.25
2002 1.50 0.00 0.00 135.50 342.00 858.50 1056.50 957.50 657.00 74.00 0.00 0.00 4082.50
2003 0.00 0.00 39.50 227.59 a 486.18 a 772.50 919.00 985.00 530.50 285.50 4.50 0.00 4250.27
2004 0.00 0.00 33.00 0.00 z 380.50 640.50 855.00 668.50 659.50 216.50 23.50 0.00 z 3477.00
2005 0.00 0.00 0.00 z 0.00 z 425.00 840.50 988.50 812.50 654.00 248.50 24.50 0.00 3993.50
2006 0.00 z 0.00 13.50 287.50 536.00 793.00 1046.50 898.00 458.50 163.00 25.50 0.00 4221.50
2007 0.00 0.00 43.50 211.50 619.50 875.50 1013.00 857.50 612.50 303.00 16.50 0.00 4552.50
2008 0.00 0.00 0.00 113.00 389.00 723.00 909.50 831.00 568.00 186.50 70.00 0.00 3790.00
2009 0.00 0.00 12.00 149.00 406.00 685.00 793.00 772.50 648.50 88.00 54.00 0.00 3608.00
2010 0.00 0.00 38.00 327.00 507.50 741.00 922.00 944.00 460.50 293.00 43.50 0.00 4276.50
2011 0.00 0.00 0.00 101.00 472.50 716.50 1064.50 920.00 547.50 330.00 24.31 a 0.00 z 4176.31
2012 0.00 y 0.00 a 238.00 214.14 a 616.00 835.86 a 1104.50 840.50 535.00 176.00 20.50 0.00 4580.50
2013 0.00 0.00 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 0.04 0.86 27.68 189.88 533.48 798.34 972.36 893.22 579.88 250.35 29.53 0.88 4292.96
S.D. 0.22 2.96 40.90 79.12 112.71 80.15 85.20 80.25 81.76 75.89 31.38 3.71 317.86
SKEW 6.09 3.50 3.04 0.67 0.33 0.06 -0.41 -0.37 -0.44 0.29 1.66 4.61 0.14
MAX 1.50 13.50 238.00 420.00 800.00 1018.50 1142.50 1078.00 761.00 498.50 153.75 22.00 4999.50
MIN 0.00 0.00 0.00 52.00 342.00 606.00 749.00 668.50 328.00 74.00 0.00 0.00 3608.00
NO YRS 51 53 52 50 52 52 52 52 51 53 53 51 45