date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Apr 4, 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
1893 0.00 b 0.00 z 0.00 z 1.15 d 352.50 854.48 a 831.00 550.00 g 485.17 a 99.09 c 16.50 0.00 2639.90
1894 0.00 0.00 1.00 200.50 410.00 829.66 a 909.85 a 824.00 467.14 b 140.02 a 1.00 0.00 3783.16
1895 0.00 0.00 14.50 285.50 482.50 553.85 d 742.50 702.50 458.04 b 152.50 0.00 0.00 a 3391.88
1896 0.00 5.50 2.50 121.00 554.50 764.00 869.50 733.50 410.00 146.00 0.00 0.00 3606.50
1897 0.00 0.00 5.50 103.00 421.50 310.50 n 0.00 z 0.00 z 0.00 z 246.97 a 8.00 0.00 i 784.97
1898 0.00 b 0.00 1.50 141.50 391.00 601.20 e 806.50 734.50 504.00 72.50 12.32 b 0.00 k 3265.02
1899 0.00 0.00 0.00 d 204.50 0.00 z 0.00 z 851.50 782.50 451.50 168.50 20.17 a 0.00 2478.67
1900 0.00 a 0.00 8.00 327.00 540.90 b 777.50 842.00 936.50 434.50 234.00 f 6.00 3.00 3875.40
1901 0.00 0.50 0.00 211.50 571.00 651.50 901.50 775.00 423.46 d 245.23 c 0.00 0.00 3779.69
1902 0.00 0.00 52.50 82.50 533.00 595.00 866.00 683.50 365.50 119.00 9.00 0.00 g 3306.00
1903 0.00 c 0.00 0.50 167.00 493.50 642.00 635.00 h 676.00 344.48 a 189.50 42.00 0.00 2554.98
1904 0.00 0.00 1.00 85.00 443.82 a 637.00 731.50 660.00 444.50 242.83 a 68.50 0.00 f 3314.15
1905 0.00 5.50 47.57 b 118.00 360.50 591.50 792.50 846.62 b 606.92 d 183.00 12.50 0.00 a 3564.61
1906 0.00 a 0.00 5.00 259.00 384.50 695.50 800.50 799.00 684.50 215.00 18.50 0.00 3861.50
1907 0.00 0.00 0.50 14.50 192.00 684.00 828.50 773.50 397.50 b 144.50 4.00 0.50 3039.50
1908 0.00 0.00 0.00 208.00 367.35 a 751.00 902.50 750.72 a 659.50 198.18 c 19.00 0.00 3856.25
1909 0.00 0.00 0.00 25.00 449.50 766.00 878.50 890.22 a 549.50 190.50 42.41 a 0.00 3791.63
1910 0.00 a 0.00 a 184.50 f 260.69 a 324.47 a 819.31 a 904.00 769.00 456.00 296.05 a 0.00 0.00 a 3829.52
1911 0.00 0.00 21.50 245.00 543.50 833.50 784.00 729.00 421.50 211.00 0.00 0.00 3789.00
1912 0.00 0.00 0.00 171.00 499.50 696.00 827.00 689.50 423.50 195.50 0.00 0.00 3502.00
1913 0.00 0.00 0.50 254.50 353.00 799.50 802.50 918.00 563.00 123.00 11.50 0.00 3825.50
1914 0.00 0.00 6.00 99.00 491.00 683.50 971.00 707.00 602.50 382.50 22.50 0.00 3965.00
1915 0.00 0.00 0.00 309.00 368.00 518.00 717.00 753.50 481.00 196.50 4.00 0.00 3347.00
1916 0.00 0.00 0.00 107.00 350.00 0.00 z 1037.50 794.00 444.50 68.50 24.50 0.00 2826.00
1917 0.00 0.00 4.00 24.00 357.50 580.00 892.50 758.50 482.50 0.00 z 22.00 0.00 3121.00
1918 0.00 z 0.00 80.50 149.50 378.00 656.50 768.00 847.50 321.50 237.50 15.00 0.00 3454.00
1919 0.00 0.00 0.00 138.00 500.00 813.00 916.50 807.50 555.00 87.00 0.00 0.00 3817.00
1920 0.00 0.00 7.00 21.00 456.00 701.50 864.38 a 883.00 598.00 328.00 3.00 0.00 3861.88
1921 0.00 0.00 10.50 142.00 497.00 854.50 972.50 807.50 547.50 217.00 3.50 0.00 4052.00
1922 0.00 0.00 a 3.00 110.00 562.50 731.00 808.50 918.00 608.00 235.00 21.50 0.00 3997.50
1923 0.00 0.00 0.00 136.00 482.00 839.50 995.00 710.50 568.00 227.33 a 23.00 0.00 3981.33
1924 0.00 0.00 0.00 65.50 190.50 615.00 743.00 721.00 418.00 333.50 2.50 0.00 3089.00
1925 0.00 0.00 35.00 248.50 373.00 662.00 800.00 875.50 541.50 25.50 4.50 0.00 3565.50
1926 0.00 0.00 24.50 163.00 597.50 589.50 863.50 782.50 395.00 126.00 2.50 0.00 3544.00
1927 0.00 a 0.00 a 10.00 127.00 289.50 675.50 813.00 719.50 550.00 215.00 0.50 0.00 a 3400.00
1928 0.00 0.00 27.50 81.50 538.00 576.00 868.00 767.50 434.00 165.50 10.50 0.00 3468.50
1929 0.00 0.00 14.50 123.50 310.50 680.00 902.00 858.00 413.00 223.00 0.00 0.00 3524.50
1930 0.00 0.00 0.00 197.00 382.00 743.50 980.50 956.50 504.50 191.50 15.50 0.00 3971.00
1931 0.00 0.00 0.00 192.50 407.00 835.50 970.00 852.00 650.00 278.50 48.00 0.00 4233.50
1932 0.00 b 3.50 0.00 151.00 509.50 886.00 952.50 919.67 a 540.50 114.50 5.00 0.00 4082.17
1933 0.00 0.00 11.50 121.50 519.77 a 933.00 985.50 915.00 650.50 111.50 1.50 0.00 4249.77
1934 0.00 0.00 a 0.00 a 112.50 681.50 736.50 964.00 824.50 375.52 a 292.50 20.00 0.00 4007.02
1935 0.00 a 0.00 1.55 a 81.00 354.00 634.50 1067.43 a 793.00 463.45 a 185.00 0.00 0.00 a 3579.93
1936 0.00 0.00 0.00 54.31 a 645.32 a 727.50 1212.10 a 915.53 a 606.50 141.00 12.00 0.00 4314.26
1937 0.00 0.00 0.00 81.50 512.00 696.50 919.50 984.00 484.00 139.00 19.00 0.00 3835.50
1938 0.00 0.00 61.48 a 175.00 372.50 704.48 a 919.00 942.00 608.50 330.50 15.00 0.00 4128.47
1939 0.00 0.00 12.00 140.00 630.00 687.00 1002.50 943.43 a 543.00 130.72 a 11.00 4.50 4104.15
1940 0.00 0.00 0.00 98.00 433.50 670.00 952.50 812.00 638.50 304.00 6.00 0.00 3914.50
1941 0.00 0.00 0.00 191.50 566.50 769.00 977.50 845.00 522.50 226.00 4.00 4.00 4106.00
1942 0.00 0.00 6.00 263.00 398.50 680.17 a 842.00 826.00 435.50 337.00 10.00 0.00 3798.17
1943 0.00 0.00 2.50 162.50 310.00 665.50 990.00 870.00 456.50 279.50 1.50 0.00 3738.00
1944 0.00 a 0.00 0.00 a 151.00 620.52 a 738.62 a 928.00 848.88 a 499.66 a 244.50 8.50 0.00 4039.68
1945 0.00 0.00 88.50 54.50 251.50 648.00 862.50 851.98 a 421.00 164.00 0.00 a 0.00 3341.98
1946 0.00 0.00 73.00 249.50 389.50 727.24 a 986.00 823.00 461.50 152.50 4.50 0.00 3866.74
1947 0.00 0.00 a 3.00 83.50 313.00 642.50 955.50 945.00 463.50 363.50 23.50 0.00 3793.00
1948 0.00 a 0.00 0.00 158.50 480.50 685.50 923.80 a 905.00 666.00 238.00 18.10 a 0.00 a 4075.40
1949 0.00 0.00 0.00 b 211.03 a 472.75 a 734.50 892.28 a 955.00 456.00 195.00 32.59 a 0.00 3949.15
1950 0.00 0.00 0.00 18.00 327.00 698.00 829.50 734.00 551.50 230.43 a 7.00 0.00 a 3395.43
1951 0.00 0.00 a 0.00 88.50 575.00 602.59 a 865.50 747.50 447.32 b 189.50 0.00 a 0.00 3515.91
1952 0.00 a 0.00 1.00 345.50 488.50 597.00 f 917.50 817.50 642.50 152.50 34.00 0.00 3399.00
1953 0.00 a 0.00 9.30 a 69.00 470.68 a 738.50 903.50 983.50 533.50 436.50 59.00 0.00 b 4203.48
1954 0.00 0.00 0.00 135.50 354.00 724.00 933.00 795.00 501.00 189.50 32.59 a 0.00 3664.59
1955 0.00 0.00 a 1.00 318.00 611.50 728.50 1015.00 974.00 513.50 251.50 0.00 0.00 4413.00
1956 0.00 0.00 0.00 8.50 405.00 911.00 819.50 852.50 e 412.50 324.00 22.00 0.00 3755.00
1957 0.00 0.00 9.30 a 181.00 490.00 621.50 1027.00 834.50 404.00 199.00 0.00 0.00 3766.30
1958 0.00 7.50 9.50 155.50 545.50 580.00 821.50 862.00 577.00 232.50 17.00 0.00 3808.00
1959 0.00 0.00 12.50 133.50 428.00 800.50 948.00 952.00 540.50 94.50 0.00 0.00 3909.50
1960 0.00 0.00 0.00 125.00 507.50 705.00 948.00 942.50 596.50 257.50 0.00 0.00 4082.00
1961 0.00 0.00 22.50 64.00 457.00 870.50 916.50 1010.50 460.50 227.00 12.50 0.00 4041.00
1962 0.00 0.00 0.00 114.50 443.50 771.50 847.00 921.50 462.50 321.88 a 7.50 1.50 3891.38
1963 0.00 0.00 67.00 167.50 440.00 887.50 1029.00 922.50 668.00 518.00 37.00 0.00 4736.50
1964 0.00 0.00 1.50 175.50 617.50 710.50 1021.00 792.00 490.50 230.50 71.50 0.00 4110.50
1965 0.00 0.00 0.00 90.00 a 454.50 751.00 881.00 0.00 z 0.00 z 251.50 22.50 0.00 2450.50
1966 0.00 0.00 16.00 67.50 380.00 792.50 968.50 803.50 565.50 182.50 0.00 0.00 3776.00
1967 0.00 0.00 c 30.00 56.50 350.00 673.50 861.50 830.00 603.50 189.50 18.50 0.00 3613.00
1968 0.00 0.00 52.50 163.50 397.00 683.50 856.50 741.00 516.50 166.00 0.00 0.00 3576.50
1969 0.00 0.00 0.00 183.50 0.00 z 534.00 877.00 1002.00 567.00 93.00 22.00 0.00 3278.50
1970 0.00 0.00 0.00 81.00 395.00 881.00 996.00 891.00 573.00 224.00 2.00 0.00 4043.00
1971 0.00 0.00 1.00 162.00 435.00 817.50 786.00 883.00 557.00 275.00 0.00 0.00 3916.50
1972 0.00 0.00 2.00 116.50 630.00 815.00 816.50 923.50 481.50 177.00 0.00 0.00 3962.00
1973 0.00 0.00 27.00 148.00 520.50 0.00 z 891.50 1028.00 516.00 358.00 1.50 0.00 3490.50
1974 0.00 0.00 0.00 147.50 378.00 792.50 1043.00 756.00 425.50 228.00 7.00 0.00 3777.50
1975 0.00 b 0.00 z 0.00 z 0.00 z 531.00 761.50 1012.00 842.00 486.00 293.00 85.50 0.00 4011.00
1976 0.00 1.00 7.00 216.00 567.50 862.00 951.50 962.50 600.50 178.50 12.00 0.00 4358.50
1977 0.00 0.00 21.50 341.00 854.50 782.00 929.50 656.00 480.00 208.00 41.50 0.00 4314.00
1978 0.00 0.00 a 1.50 120.50 596.00 712.50 867.50 903.50 699.00 189.00 53.00 0.00 4142.50
1979 0.00 0.00 0.00 50.00 0.00 z 0.00 z 0.00 z 0.00 z 628.00 176.00 1.00 0.00 855.00
1980 0.00 f 0.00 0.00 327.50 695.50 799.50 996.00 822.50 529.50 172.50 26.00 0.00 4369.00
1981 0.00 1.50 29.00 235.50 544.50 709.50 955.00 970.50 560.36 b 254.00 99.50 0.00 4359.36
1982 0.00 0.00 2.50 192.00 0.00 z 599.00 949.00 846.50 547.50 214.00 0.50 4.00 3355.00
1983 0.00 0.00 0.50 115.50 381.00 810.50 1077.00 1078.00 546.50 179.00 36.50 0.00 4224.50
1984 0.00 0.00 0.00 z 181.50 464.50 801.00 945.50 1010.00 447.00 306.00 14.50 0.00 4170.00
1985 0.00 0.00 26.00 296.00 665.00 659.50 923.50 773.00 440.00 189.00 7.00 0.00 3979.00
1986 0.00 0.00 57.50 159.00 635.50 a 828.50 957.00 777.50 467.50 195.00 3.00 0.00 4080.50
1987 0.00 0.00 6.00 410.00 708.50 931.50 1040.50 865.50 636.00 155.50 59.50 0.00 4813.00
1988 0.00 0.00 2.50 214.50 730.00 1040.00 1072.50 1007.50 552.50 192.00 2.00 0.00 4813.50
1989 0.00 0.00 0.00 136.00 615.00 762.50 1128.50 967.50 630.00 263.00 0.00 0.00 4502.50
1990 0.00 0.00 24.00 211.50 492.00 814.00 961.00 988.00 668.00 215.50 28.50 0.00 4402.50
1991 0.00 1.50 23.00 253.00 683.50 910.50 951.50 991.50 548.50 128.50 0.00 0.00 4491.50
1992 0.00 0.00 3.00 130.00 628.00 667.00 713.50 774.50 486.00 236.50 0.00 0.00 3638.50
1993 0.00 0.00 6.00 104.50 507.00 641.00 774.50 822.00 394.50 151.00 1.00 0.00 3401.50
1994 0.00 0.00 2.50 141.00 562.50 768.00 806.50 802.50 613.00 268.50 16.00 0.00 a 3980.50
1995 0.00 0.00 16.00 44.00 393.00 823.00 871.50 940.00 533.50 157.50 0.00 0.00 3778.50
1996 0.00 0.00 1.50 43.50 416.50 843.00 876.00 970.00 598.00 254.00 4.50 0.00 4007.00
1997 0.00 0.00 0.00 87.50 361.00 847.50 890.50 832.00 621.50 251.50 0.00 0.00 3891.50
1998 0.00 1.00 11.50 264.50 595.50 0.00 z 0.00 z 0.00 z 0.00 z 206.84 b 0.00 0.00 1079.34
1999 0.00 0.00 10.50 186.00 496.00 734.50 944.00 827.50 428.50 132.50 35.50 0.00 3795.00
2000 0.00 8.00 61.50 0.00 z 0.00 z 0.00 z 0.00 z 882.50 489.00 243.00 0.00 z 0.00 z 1684.00
2001 0.00 0.00 0.00 167.00 531.00 732.50 955.50 935.00 564.00 143.00 58.00 0.00 4086.00
2002 0.00 0.00 2.50 127.00 300.00 818.79 a 1001.50 841.00 612.00 41.00 3.50 0.00 3747.29
2003 0.00 0.00 27.00 203.00 464.50 736.50 899.00 975.00 509.50 281.50 0.00 0.00 4096.00
2004 0.00 0.00 7.00 96.00 306.50 631.00 821.50 641.00 603.00 202.50 14.50 0.00 3323.00
2005 0.00 0.00 11.00 238.00 417.50 790.00 941.00 821.00 638.00 215.50 26.00 0.00 4098.00
2006 0.00 0.00 0.50 293.50 526.50 826.00 1036.00 875.50 515.00 142.00 20.00 0.00 4235.00
2007 0.00 0.00 11.00 217.00 538.50 817.50 973.50 799.50 548.50 234.00 20.00 0.00 a 4159.50
2008 0.00 0.00 0.00 78.50 352.00 671.50 874.50 875.50 531.50 191.00 43.50 0.00 3618.00
2009 0.00 0.00 a 4.00 98.00 331.00 671.00 785.00 765.50 723.00 64.50 35.00 0.00 3477.00
2010 0.00 0.00 36.00 292.50 506.00 717.50 947.00 941.00 445.00 291.50 49.50 0.00 4226.00
2011 0.00 d 0.00 e 0.00 129.11 b 410.00 712.00 984.50 893.00 542.00 337.00 25.00 0.00 4032.61
2012 0.00 0.00 174.00 224.00 558.50 812.50 1085.00 866.50 525.50 120.50 0.00 0.00 4366.50
2013 0.00 a 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 0.00 0.30 12.76 155.93 470.66 735.70 911.34 849.17 520.96 209.65 15.98 0.15 3906.48
S.D. 0.00 1.27 24.06 82.74 117.37 96.43 91.00 93.75 84.18 79.27 19.48 0.73 342.97
SKEW 0.00 4.80 3.57 0.52 0.31 0.20 0.21 0.00 0.11 0.63 1.78 4.97 0.13
MAX 0.00 8.00 174.00 410.00 854.50 1040.00 1212.10 1078.00 723.00 518.00 99.50 4.50 4813.50
MIN 0.00 0.00 0.00 1.15 190.50 518.00 713.50 641.00 321.50 25.50 0.00 0.00 3039.50
NO YRS 119 119 117 118 115 112 115 115 117 118 119 115 97