date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 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
1914 0.00 z 0.00 z 0.00 z 0.00 z 258.00 l 494.50 738.50 537.50 328.00 199.50 4.50 0.00 2302.50
1915 0.00 0.00 0.00 197.50 140.00 335.00 488.50 469.00 296.50 74.00 0.00 0.00 2000.50
1916 0.00 a 0.00 0.00 10.00 193.50 330.50 829.00 581.00 269.50 36.50 2.50 h 0.00 2250.00
1917 0.00 0.00 0.00 2.50 159.00 392.07 a 726.43 a 537.50 281.50 19.50 2.50 0.00 2121.00
1918 0.00 0.00 8.50 24.50 286.00 499.50 606.00 646.50 193.00 134.50 12.50 0.00 2411.00
1919 0.00 0.00 0.00 27.00 259.00 565.00 743.00 614.00 402.00 55.50 0.00 0.00 2665.50
1920 0.00 0.00 0.50 0.00 226.00 457.50 604.00 571.50 413.50 191.50 0.00 0.00 2464.50
1921 0.00 0.00 8.27 a 50.50 293.50 689.50 758.00 627.50 338.50 64.00 0.00 z 0.00 z 2829.77
1922 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 608.50 707.50 437.00 120.50 0.00 0.00 1873.50
1923 0.00 a 0.00 b 0.00 51.50 209.25 a 569.00 750.50 536.00 387.00 106.00 0.00 0.00 2609.25
1924 0.00 0.00 0.00 40.50 86.80 a 325.00 490.50 476.00 138.00 68.00 0.00 0.00 1624.80
1925 0.00 0.00 11.50 62.00 167.50 379.00 511.50 654.00 192.00 p 0.00 0.00 z 0.00 z 1785.50
1926 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 353.79 a 692.50 562.00 217.00 60.00 0.00 0.00 1885.29
1927 0.00 0.00 2.00 52.50 124.50 423.00 536.50 493.50 409.00 77.50 0.00 0.00 2118.50
1928 0.00 0.00 7.50 29.50 323.50 345.00 649.00 586.50 260.50 103.50 0.00 0.00 2305.00
1929 0.00 0.00 0.00 46.50 198.50 473.50 832.00 774.00 268.00 107.00 0.00 0.00 2699.50
1930 0.00 0.00 0.00 66.00 281.00 558.50 748.00 721.00 352.50 134.50 0.00 0.00 2861.50
1931 0.00 0.00 0.00 103.00 0.00 z 635.50 794.50 593.00 536.00 137.50 8.50 0.00 2808.00
1932 0.00 0.00 0.00 54.00 302.00 598.50 738.50 674.50 317.00 49.50 0.00 0.00 2734.00
1933 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
1934 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
1935 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
1936 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
1937 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
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 760.02 a 691.00 520.50 72.00 3.00 0.00 a 2046.52
1949 0.00 0.00 0.00 85.50 344.00 553.50 723.00 777.00 265.00 136.00 1.00 0.00 2885.00
1950 0.00 0.00 0.00 2.00 193.50 543.62 a 573.50 504.00 360.50 103.00 12.50 0.00 2292.62
1951 0.00 0.00 b 0.00 48.00 352.00 372.00 646.50 541.50 243.89 c 105.06 d 0.00 a 0.00 a 2308.94
1952 0.00 j 0.00 a 0.00 138.50 286.23 a 607.24 a 716.00 667.00 314.50 n 15.00 t 0.52 a 0.00 2415.49
1953 0.00 0.00 0.00 5.50 k 153.00 k 461.50 h 696.98 a 722.50 376.00 267.50 25.34 a 0.00 2088.33
1954 0.00 f 0.00 a 0.00 45.00 168.50 530.00 731.50 640.50 307.50 77.00 10.86 a 0.00 a 2510.86
1955 0.00 0.00 0.53 b 155.00 444.00 536.00 832.50 773.00 390.50 153.50 0.00 c 0.00 3285.03
1956 0.00 0.00 0.00 3.62 a 266.60 a 673.50 632.00 662.22 b 319.00 220.00 3.10 a 0.00 a 2780.05
1957 0.00 a 0.00 0.00 a 111.43 b 244.00 504.00 861.00 648.50 324.00 120.50 0.00 0.00 d 2813.43
1958 0.00 e 0.00 a 0.00 68.00 377.17 d 409.29 b 651.55 c 743.00 437.07 a 171.50 0.56 c 0.00 2858.13
1959 0.00 b 0.00 0.50 65.50 330.50 670.00 743.00 800.50 434.00 41.85 a 0.00 d 0.00 a 3085.85
1960 0.00 0.00 b 0.00 72.00 316.00 488.00 764.50 750.50 453.50 153.50 0.00 b 0.00 2998.00
1961 0.00 c 0.00 a 12.83 b 20.89 b 220.00 615.50 662.50 766.50 273.33 c 135.22 b 0.00 0.00 h 2706.78
1962 0.00 0.00 0.00 b 63.50 285.00 492.50 573.50 619.00 282.50 175.00 0.00 1.19 e 2492.19
1963 0.00 0.00 35.13 a 74.50 257.30 a 607.50 734.00 649.50 429.00 316.50 0.00 0.00 3103.43
1964 0.00 0.00 0.00 75.00 b 396.50 592.50 804.50 628.50 330.50 100.75 a 19.00 0.00 2947.25
1965 0.00 0.00 a 0.00 33.00 282.00 518.50 671.00 612.00 116.50 133.00 9.00 0.00 2375.00
1966 0.00 0.00 0.00 9.50 226.82 a 529.50 857.00 563.68 a 350.00 90.50 0.00 0.00 2627.00
1967 0.00 0.00 26.00 45.00 186.50 476.00 616.50 563.50 375.50 97.50 2.00 0.00 2388.50
1968 0.00 0.00 48.50 70.00 148.00 516.00 671.00 667.00 330.50 102.00 0.50 0.00 2553.50
1969 0.00 0.00 0.00 45.00 327.50 332.50 668.50 746.00 399.50 54.50 3.00 0.00 2576.50
1970 0.00 0.00 0.00 63.50 268.50 611.50 762.50 725.50 404.50 124.00 0.00 0.00 2960.00
1971 0.00 0.00 0.00 117.50 223.00 613.00 563.50 667.00 361.00 116.00 0.00 0.00 2661.00
1972 0.00 0.00 0.00 19.50 331.50 528.50 624.00 671.00 316.00 78.50 0.00 0.00 2569.00
1973 0.00 0.00 0.00 62.00 241.50 556.00 643.50 732.00 283.00 194.50 0.00 0.00 2712.50
1974 0.00 0.00 0.00 63.50 179.50 521.00 822.00 562.00 282.00 118.00 0.00 0.00 2548.00
1975 0.00 0.00 0.00 0.00 315.00 514.00 804.50 641.00 244.00 150.00 30.00 0.00 2698.50
1976 0.00 0.00 a 2.00 79.00 272.00 632.50 787.00 804.00 420.00 115.98 b 0.50 0.00 b 3112.98
1977 0.00 0.00 3.50 187.50 529.00 551.00 747.62 a 492.00 328.00 61.50 6.21 a 0.00 2906.32
1978 0.00 0.00 2.00 23.50 334.50 529.50 679.00 700.50 517.00 95.00 12.00 0.00 2893.00
1979 0.00 0.00 0.00 a 25.50 176.00 508.00 667.50 560.00 424.00 48.00 0.00 0.00 2409.00
1980 0.00 0.00 0.00 123.00 399.50 512.50 714.50 595.00 311.50 102.50 0.50 0.00 2759.00
1981 0.00 0.00 3.50 82.00 254.00 460.50 678.50 627.00 342.00 59.50 7.50 0.00 2514.50
1982 0.00 0.00 0.00 55.50 316.50 370.50 723.00 660.50 287.00 58.50 0.00 0.00 2471.50
1983 0.00 0.00 0.00 25.00 182.00 521.00 827.00 812.00 382.00 35.50 6.00 0.00 2790.50
1984 0.00 0.00 0.00 18.50 240.00 536.50 589.00 f 767.50 267.00 160.00 2.50 0.00 1992.00
1985 0.00 0.00 0.00 147.50 407.00 424.50 689.00 513.50 288.00 35.00 0.00 0.00 2504.50
1986 0.00 0.00 21.50 48.50 328.00 617.00 734.00 536.50 273.00 88.50 0.00 0.00 2647.00
1987 0.00 0.00 7.00 203.50 0.00 z 647.50 789.00 622.50 379.50 44.50 5.00 0.00 2698.50
1988 0.00 0.00 0.00 77.50 495.50 761.00 840.50 734.00 371.00 59.00 0.00 0.00 3338.50
1989 0.00 0.00 0.00 72.00 322.00 491.00 792.00 638.00 352.00 135.50 0.00 0.00 2802.50
1990 0.00 0.00 5.50 134.00 225.00 569.00 639.50 633.00 439.00 82.50 22.50 0.00 2750.00
1991 0.00 0.00 0.00 106.00 425.00 619.00 678.50 721.00 347.50 102.00 0.00 0.00 2999.00
1992 0.00 0.00 0.00 64.50 368.00 435.00 469.50 518.00 329.50 125.50 0.00 0.00 z 2310.00
1993 0.00 0.00 0.00 31.00 261.00 407.50 589.00 636.00 219.50 84.50 0.00 0.00 2228.50
1994 0.00 0.00 0.00 54.00 394.50 605.00 613.50 558.50 443.00 108.50 2.00 0.00 2779.00
1995 0.00 0.00 1.00 0.50 213.00 646.50 683.50 733.50 352.00 70.50 0.00 0.00 2700.50
1996 0.00 0.00 0.00 15.50 218.00 596.00 653.00 661.00 335.50 110.50 0.00 z 0.00 2589.50
1997 0.00 0.00 0.00 21.50 207.00 635.50 674.50 607.00 444.00 204.50 0.00 0.00 2794.00
1998 0.00 0.00 0.00 92.50 415.00 470.50 729.00 725.00 512.50 77.50 0.00 0.00 3022.00
1999 0.00 0.00 11.50 57.00 320.00 554.50 777.50 675.50 290.00 62.50 27.50 0.00 2776.00
2000 0.00 0.00 5.50 66.50 329.00 483.00 682.00 693.00 362.50 0.00 z 10.00 0.00 2631.50
2001 0.00 0.00 0.00 87.00 353.50 573.50 786.50 731.00 359.50 66.50 38.50 0.00 a 2996.00
2002 0.00 0.00 0.00 93.00 215.50 673.00 812.50 633.00 468.50 33.00 0.00 0.00 2928.50
2003 0.00 z 0.00 16.00 120.50 248.00 522.50 714.50 764.50 375.00 196.50 0.00 0.00 2957.50
2004 0.00 0.00 12.00 95.50 214.50 450.00 618.50 366.00 366.00 75.50 0.00 0.00 2198.00
2005 0.00 0.00 5.50 71.00 193.50 565.50 664.00 544.00 397.50 88.50 2.50 0.00 2532.00
2006 0.00 0.00 0.00 83.50 255.00 527.50 748.50 598.00 231.00 79.50 6.50 0.00 2529.50
2007 0.00 0.00 3.00 62.50 294.50 552.50 701.50 527.00 330.00 82.50 0.00 0.00 2553.50
2008 0.00 0.00 0.00 9.50 156.00 441.50 651.00 598.00 312.00 40.00 18.00 0.00 2226.00
2009 0.00 0.00 0.00 22.00 185.00 434.00 506.50 498.00 415.50 0.00 4.00 0.00 2065.00
2010 0.00 0.00 9.00 80.50 285.50 501.50 682.50 669.00 212.50 119.50 3.50 0.00 a 2563.50
2011 0.00 e 0.00 0.00 16.50 190.50 456.50 777.00 615.50 300.50 170.00 0.00 0.00 2526.50
2012 0.00 0.00 72.00 51.50 307.00 565.50 799.00 549.00 308.50 46.50 0.00 0.00 2699.00
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 0.00 0.00 4.23 63.02 272.61 520.79 698.51 635.90 343.26 103.32 4.04 0.01 2638.64
S.D. 0.00 0.00 11.04 45.20 87.02 94.24 90.95 91.47 81.90 56.74 7.79 0.13 315.72
SKEW 0.00 0.00 4.13 1.03 0.51 -0.17 -0.46 -0.19 -0.06 1.04 2.50 8.78 -0.44
MAX 0.00 0.00 72.00 203.50 529.00 761.00 861.00 812.00 536.00 316.50 38.50 1.19 3338.50
MIN 0.00 0.00 0.00 0.00 86.80 325.00 469.50 366.00 116.50 0.00 0.00 0.00 1624.80
NO YRS 78 81 81 79 77 81 83 84 82 82 80 80 66