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
1946 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 466.50 o 789.00 503.50 325.50 11.25 b 1.55 a 1630.80
1947 0.00 0.00 a 3.00 67.50 124.00 m 647.00 891.50 1071.05 a 599.50 511.00 28.00 0.00 b 3818.55
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 699.31 a 932.67 b 881.50 672.00 212.50 69.50 1.00 3468.48
1949 0.00 0.00 4.00 160.50 518.50 836.00 968.00 881.00 421.00 326.00 36.00 0.00 4151.00
1950 0.00 a 0.00 0.00 33.00 389.50 664.00 747.50 650.00 508.00 356.50 a 23.04 b 0.00 3371.54
1951 0.00 0.00 1.00 90.50 524.50 594.50 810.00 706.00 397.50 213.50 0.50 8.00 3346.00
1952 0.00 0.00 3.50 248.50 382.52 c 746.50 911.50 776.50 539.00 109.50 43.45 a 0.00 3760.97
1953 0.00 0.00 9.50 63.50 471.00 771.00 861.00 877.09 b 549.50 426.50 94.50 0.50 4124.09
1954 0.00 1.00 0.00 179.00 302.50 785.50 868.00 768.00 463.00 180.32 a 30.00 0.00 3577.32
1955 0.00 0.00 2.00 273.50 569.00 693.50 1012.50 954.00 534.50 231.47 a 0.00 d 0.00 4270.47
1956 0.00 0.00 0.00 41.50 395.50 790.50 753.50 783.50 427.50 379.75 c 87.00 0.00 3658.75
1957 0.00 0.00 0.00 233.00 377.50 682.50 912.00 751.00 436.50 175.50 18.10 a 0.00 3586.10
1958 0.00 1.50 0.00 149.00 414.50 542.50 768.50 771.00 519.00 256.50 57.50 0.00 a 3480.00
1959 0.00 a 0.00 2.50 108.50 555.50 745.50 837.50 923.50 550.00 125.00 0.00 0.00 3848.00
1960 0.00 0.00 3.50 179.50 418.50 609.50 816.50 849.00 583.00 244.50 12.00 3.50 3719.50
1961 0.00 0.00 16.00 52.50 345.00 692.50 826.00 803.50 496.00 222.88 b 11.00 0.00 k 3465.38
1962 0.00 0.00 a 4.50 123.00 521.50 639.50 705.00 744.50 371.00 263.00 1.07 b 25.50 3398.57
1963 0.00 0.00 34.00 178.50 382.00 758.00 884.00 724.50 480.50 461.00 31.00 0.00 3933.50
1964 0.00 0.00 0.52 a 194.00 568.50 715.00 664.50 g 675.00 432.50 173.00 101.00 0.00 2859.52
1965 0.00 0.00 0.00 53.50 532.50 643.00 749.00 701.00 341.00 186.50 24.50 0.00 3231.00
1966 0.00 0.00 15.00 52.78 c 265.50 688.00 871.62 a 637.05 a 480.52 a 185.00 13.00 0.00 3208.46
1967 0.00 0.00 b 19.00 129.00 271.00 697.00 778.50 668.50 484.00 195.00 10.50 0.00 3252.50
1968 0.00 0.00 95.58 a 171.72 a 337.50 658.00 794.00 809.00 537.00 279.00 19.00 0.00 3700.81
1969 0.00 0.00 0.00 208.50 480.00 496.00 866.00 895.00 539.50 182.00 28.50 0.00 3695.50
1970 0.00 0.00 0.00 191.00 455.00 779.00 929.50 835.97 a 537.00 302.00 8.50 0.00 4037.97
1971 0.00 0.00 0.00 152.07 a 368.38 a 836.00 782.50 741.50 572.00 397.50 30.00 0.00 3879.95
1972 0.00 0.00 0.00 91.00 601.50 659.50 805.50 808.50 501.50 144.50 10.50 0.00 3622.50
1973 0.00 0.00 48.50 128.00 308.00 758.50 893.50 889.50 516.50 349.50 8.50 0.00 3900.50
1974 0.00 0.00 0.50 159.00 323.50 581.50 926.00 765.00 353.00 179.50 48.00 0.00 3336.00
1975 0.00 0.00 0.00 55.00 552.50 687.50 900.00 790.00 388.50 262.97 b 122.07 a 0.00 3758.53
1976 0.00 0.00 19.50 173.00 377.00 755.50 869.03 a 778.50 422.50 154.00 1.00 0.00 3550.03
1977 0.00 a 0.00 b 50.50 301.50 688.72 a 663.89 c 900.03 a 637.00 485.00 127.00 61.00 0.00 a 3914.64
1978 0.00 0.00 8.50 75.00 523.68 c 656.00 789.50 811.00 603.00 128.00 48.00 0.00 b 3642.68
1979 0.00 b 0.00 0.50 137.50 314.00 672.00 888.50 750.00 567.50 161.00 27.00 0.00 3518.00
1980 0.00 0.00 1.55 a 195.00 540.50 678.50 911.00 824.00 468.00 129.50 14.00 0.00 3762.05
1981 0.00 11.50 29.50 174.50 414.00 709.00 853.50 825.50 453.50 140.50 70.00 0.00 3681.50
1982 0.00 0.00 5.50 104.00 602.50 544.00 923.00 766.50 475.50 235.50 24.50 13.00 3694.00
1983 0.00 0.00 12.50 91.00 291.00 732.50 1010.50 954.00 568.00 212.00 28.00 0.00 3899.50
1984 0.00 2.00 0.00 158.50 370.00 770.50 841.00 910.50 460.00 300.50 10.00 0.00 3823.00
1985 0.00 0.00 16.00 277.00 580.50 625.00 839.50 754.00 531.50 175.50 12.00 0.00 3811.00
1986 0.00 0.00 50.00 252.00 538.50 714.00 913.50 711.00 527.00 191.00 8.50 0.00 3905.50
1987 0.00 0.00 61.00 297.00 556.50 805.50 976.00 803.50 543.00 84.50 51.00 0.00 4178.00
1988 0.00 0.00 1.03 a 124.00 605.00 826.00 988.50 928.50 516.00 106.50 10.00 0.00 4105.53
1989 0.00 0.00 25.00 109.50 434.50 637.50 911.50 798.50 484.50 259.00 0.00 0.00 3660.00
1990 0.00 0.00 48.50 243.50 354.50 731.00 847.00 812.00 590.00 148.00 73.50 0.00 3848.00
1991 0.00 0.00 23.50 224.50 583.50 849.00 845.00 848.00 432.50 159.50 1.00 0.00 3966.50
1992 0.00 0.00 1.50 83.50 497.00 623.00 679.00 685.00 435.50 198.00 2.50 0.00 3205.00
1993 0.00 0.00 16.50 71.50 438.00 608.00 839.00 835.50 310.00 155.00 a 5.00 0.00 3278.50
1994 0.00 1.00 9.50 132.50 475.50 773.00 803.50 724.00 606.50 275.50 35.50 0.00 3836.50
1995 0.00 0.00 44.50 47.00 409.20 a 846.00 890.50 957.50 460.50 198.92 a 0.00 0.00 3854.12
1996 0.00 0.00 5.00 86.50 358.50 724.50 785.50 821.50 521.00 198.00 7.50 0.00 3508.00
1997 0.00 0.00 5.00 132.00 287.00 771.50 830.00 695.00 553.50 247.50 8.50 0.00 3530.00
1998 0.00 0.00 52.00 231.50 645.50 677.50 879.00 857.00 674.00 240.00 28.50 16.00 4301.00
1999 0.00 0.00 a 24.50 200.50 559.50 741.00 963.58 a 768.28 a 494.50 162.00 73.97 a 1.50 3989.33
2000 0.00 7.50 89.90 a 150.52 a 520.50 665.00 832.87 a 829.50 502.50 304.00 55.50 0.00 3957.78
2001 0.00 0.00 0.00 216.50 515.63 a 741.00 909.00 918.00 502.50 197.00 146.00 16.00 4161.63
2002 0.00 0.00 5.50 167.50 331.00 789.50 1007.50 832.50 622.00 136.00 19.00 0.00 3910.50
2003 0.00 0.00 66.50 195.00 454.00 712.50 874.00 926.50 587.50 216.50 9.50 0.00 4042.00
2004 0.00 0.00 c 25.00 179.50 386.00 652.00 839.50 635.00 692.00 236.78 b 33.75 b 0.00 b 3679.53
2005 0.00 2.50 35.50 247.50 409.00 879.00 966.00 854.50 676.00 284.00 48.50 0.00 4402.50
2006 0.00 0.00 13.00 292.00 493.00 722.50 965.00 818.50 437.00 140.50 39.00 0.00 3920.50
2007 0.00 0.00 91.50 212.50 570.50 753.50 861.50 810.50 578.50 369.50 9.50 0.00 4257.50
2008 0.00 0.00 0.00 143.50 346.00 671.50 840.50 382.50 o 578.50 175.00 71.50 0.00 2826.50
2009 0.00 0.00 15.00 120.50 425.00 644.00 521.00 f 698.50 561.50 75.00 44.00 0.00 2583.50
2010 0.00 0.00 a 53.50 282.00 511.50 708.00 929.50 926.00 442.50 265.50 45.00 0.00 4163.50
2011 0.00 0.00 d 0.00 78.00 418.00 701.00 963.50 819.00 467.00 288.00 23.50 0.00 3758.00
2012 0.00 0.00 283.81 b 156.00 568.50 764.50 997.50 773.00 477.00 128.50 h 0.00 z 0.00 z 4020.31
Period of Record Statistics
MEAN 0.00 0.42 22.36 155.86 453.51 706.59 871.33 803.31 508.08 226.24 32.18 1.33 3772.29
S.D. 0.00 1.73 40.99 71.74 103.66 77.54 75.24 89.32 79.69 90.62 31.11 4.50 295.60
SKEW 0.00 5.25 4.32 0.21 0.06 -0.16 -0.17 0.26 0.02 0.93 1.46 3.83 -0.08
MAX 0.00 11.50 283.81 301.50 688.72 879.00 1012.50 1071.05 692.00 511.00 146.00 25.50 4402.50
MIN 0.00 0.00 0.00 33.00 265.50 496.00 679.00 635.00 310.00 75.00 0.00 0.00 3205.00
NO YRS 65 65 65 65 64 66 64 66 67 66 66 65 59