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
1893 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 163.00 w 710.50 557.00 395.89 b 111.27 c 8.33 c 0.00 1782.99
1894 0.00 d 0.00 a 7.75 a 107.50 211.00 605.17 a 784.00 662.50 368.50 52.00 0.00 a 0.00 a 2798.42
1895 0.00 0.00 a 0.00 z 105.00 a 325.00 545.50 604.50 615.50 450.00 37.00 0.00 0.00 b 2682.50
1896 0.00 0.00 0.00 132.50 377.00 530.36 b 639.63 a 639.00 184.14 a 42.00 0.00 0.00 b 2544.63
1897 0.00 0.00 g 0.00 z 45.00 197.00 453.00 712.00 466.00 518.00 166.00 0.50 0.00 2557.50
1898 0.00 0.00 0.00 0.00 z 248.50 548.00 689.00 619.00 368.50 60.00 0.00 0.00 2533.00
1899 0.00 0.00 0.00 97.50 228.00 526.50 672.50 685.50 279.00 133.50 0.00 0.00 2622.50
1900 0.00 0.00 0.00 137.00 374.00 565.50 664.50 846.50 364.00 226.00 0.00 0.00 3177.50
1901 0.00 0.00 0.00 106.00 292.95 a 552.00 908.50 705.00 307.50 87.00 1.50 0.00 2960.45
1902 0.00 0.00 0.50 41.50 321.00 376.00 665.50 504.00 203.50 67.50 8.50 0.00 2188.00
1903 0.00 0.00 1.50 19.50 322.00 404.50 614.50 473.00 242.68 b 50.12 a 6.21 a 0.00 a 2134.00
1904 0.00 a 0.00 0.00 21.50 221.50 501.00 539.50 478.00 295.00 104.00 14.00 0.00 2174.50
1905 0.00 0.00 2.50 27.00 189.50 342.50 f 553.00 653.50 384.00 125.50 0.00 0.00 a 1935.00
1906 0.00 0.00 0.00 63.00 230.00 441.00 570.50 654.00 463.50 118.50 9.31 a 0.00 2549.81
1907 0.00 0.00 21.50 0.00 65.00 386.00 653.00 530.50 275.50 68.50 0.00 0.00 2000.00
1908 0.00 0.00 0.00 74.50 247.00 417.50 682.00 557.50 530.00 131.00 0.50 0.00 2640.00
1909 0.00 0.00 0.00 2.00 238.00 495.00 613.50 739.00 293.00 135.50 15.50 0.00 2531.50
1910 0.00 0.00 78.50 153.00 107.50 561.50 750.00 623.00 325.50 189.00 0.00 0.00 2788.00
1911 0.00 0.00 5.50 41.50 388.50 641.50 666.50 497.50 324.00 48.00 0.00 0.00 2613.00
1912 0.00 0.00 0.00 35.00 243.50 371.50 608.50 508.50 350.50 85.00 2.00 0.00 2204.50
1913 0.00 0.00 0.00 86.00 168.50 587.50 686.00 696.00 390.00 122.00 13.00 0.00 2749.00
1914 0.00 0.00 0.00 78.50 251.50 509.50 738.00 613.00 349.50 198.50 11.00 0.00 2749.50
1915 0.00 0.00 0.00 206.00 150.50 363.10 a 526.50 447.50 336.00 94.50 11.50 0.00 2135.60
1916 0.00 0.00 0.00 26.00 233.50 351.50 836.00 672.50 312.50 114.00 9.00 0.00 2555.00
1917 0.00 0.00 0.00 34.50 136.50 369.00 643.50 508.50 285.00 22.00 0.00 0.00 1999.00
1918 0.00 0.00 9.00 4.00 350.50 483.50 587.00 643.50 169.00 122.00 12.50 0.00 2381.00
1919 0.00 0.00 0.00 27.00 180.50 575.00 674.00 542.00 391.50 95.00 0.00 0.00 2485.00
1920 0.00 0.00 5.00 12.50 211.00 521.00 553.00 493.00 415.00 236.00 0.00 0.00 2446.50
1921 0.00 0.00 13.00 112.00 346.50 661.00 805.50 603.50 398.50 62.52 a 0.00 0.00 3002.52
1922 0.00 0.00 0.00 11.50 339.00 540.00 533.50 643.00 401.00 149.00 0.50 0.00 2617.50
1923 0.00 0.00 a 0.00 43.00 227.50 564.50 738.00 516.50 346.00 66.00 0.00 0.00 2501.50
1924 0.00 0.00 0.00 48.50 52.50 370.00 512.50 505.00 190.50 165.00 5.00 0.00 1849.00
1925 0.00 0.00 5.50 109.00 192.00 469.00 580.50 589.00 439.00 10.00 0.00 0.00 2394.00
1926 0.00 0.00 0.00 49.00 330.50 342.00 631.50 591.50 305.00 65.50 0.00 0.00 2315.00
1927 0.00 0.00 1.00 50.00 150.00 367.00 564.00 434.50 408.00 102.50 0.00 0.00 2077.00
1928 0.00 0.00 7.50 20.50 262.50 309.50 632.00 561.50 237.00 118.50 0.00 0.00 a 2149.00
1929 0.00 0.00 0.00 54.00 172.50 404.00 652.50 559.00 296.00 49.00 0.00 0.00 2187.00
1930 0.00 1.00 6.50 78.50 233.00 483.00 699.50 654.50 331.50 126.50 16.50 0.00 2630.50
1931 0.00 0.00 0.00 102.50 200.50 664.00 728.50 589.50 490.00 125.00 7.50 0.00 2907.50
1932 0.00 0.00 0.00 37.76 a 259.00 558.50 649.50 602.50 212.00 57.50 0.00 0.00 2376.76
1933 0.00 0.00 0.00 38.00 251.00 712.00 713.50 512.00 451.50 48.50 17.50 0.00 2744.00
1934 0.00 0.00 0.00 59.00 519.50 655.50 729.02 a 521.50 218.50 150.00 7.50 0.00 2860.52
1935 0.00 0.00 1.00 41.00 127.00 352.50 781.50 591.50 333.50 57.50 0.00 0.00 2285.50
1936 0.00 0.00 0.50 14.50 387.00 412.00 870.50 720.00 404.50 60.50 0.00 0.00 2869.50
1937 0.00 0.00 0.00 17.00 214.50 408.50 695.00 791.00 311.38 a 72.33 a 0.00 0.00 2509.71
1938 0.00 0.00 11.00 81.00 227.50 475.00 706.00 693.50 365.00 204.00 22.50 0.00 2785.50
1939 0.00 0.00 9.50 59.50 406.00 550.00 710.50 602.00 465.00 85.00 1.00 0.00 2888.50
1940 0.00 0.00 0.00 13.00 192.00 508.50 724.00 547.67 a 382.50 108.50 2.00 0.00 2478.17
1941 0.00 0.00 0.00 115.50 379.50 512.50 683.00 670.00 370.50 66.50 3.50 0.00 2801.00
1942 0.00 0.00 4.00 113.28 a 190.00 450.50 605.50 568.50 301.00 118.00 1.00 0.00 2351.78
1943 0.00 0.00 7.50 20.50 155.52 a 568.00 668.05 a 604.50 b 188.00 87.00 0.00 0.00 2299.07
1944 0.00 0.00 0.00 a 6.50 357.00 538.00 580.50 594.00 311.00 57.50 20.00 0.00 2464.50
1945 0.00 0.00 37.50 41.00 122.50 327.50 567.00 570.50 308.50 68.50 2.59 a 0.00 a 2045.59
1946 0.00 0.00 18.08 a 106.50 167.50 480.00 a 653.00 495.00 291.00 119.50 0.00 0.00 2330.58
1947 0.00 0.00 a 0.00 18.50 119.00 393.00 598.82 a 792.00 410.00 256.50 4.50 0.00 2592.32
1948 0.00 0.00 3.00 96.00 202.50 472.24 a 688.00 674.50 458.00 50.63 a 14.00 0.00 2658.87
1949 0.00 0.00 0.00 56.38 a 331.50 609.00 758.00 681.00 228.50 184.50 12.50 0.00 2861.38
1950 0.00 0.00 0.00 10.50 225.27 a 468.00 559.50 474.50 305.00 172.50 11.00 0.00 2226.27
1951 0.00 0.00 a 0.00 a 34.50 337.50 361.50 573.00 478.50 190.34 a 108.00 0.00 0.00 2083.34
1952 0.00 0.00 a 0.00 125.00 210.50 534.11 b 639.00 520.00 319.00 36.00 12.00 0.00 2395.61
1953 0.00 a 0.00 1.55 a 20.50 227.33 a 544.50 611.00 602.00 316.00 221.00 20.00 0.00 2563.88
1954 0.00 0.00 0.00 71.50 146.00 558.00 671.50 533.00 309.50 72.00 3.00 0.00 2364.50
1955 0.00 0.00 0.00 92.50 343.14 b 418.00 771.00 724.50 348.00 102.82 a 0.00 0.00 2799.95
1956 0.00 0.00 0.00 18.00 256.50 604.00 536.00 577.63 a 225.50 162.00 6.50 0.00 2386.13
1957 0.00 0.00 a 0.00 88.00 176.00 452.50 697.50 503.75 a 194.00 39.00 0.00 0.00 2150.75
1958 0.00 0.00 a 0.00 64.00 258.00 320.17 a 524.00 570.00 286.50 118.00 2.50 0.00 2143.17
1959 0.00 0.00 b 0.00 41.50 352.50 558.00 594.50 677.00 331.00 17.00 0.00 0.00 2571.50
1960 0.00 0.00 a 0.00 b 79.50 244.00 373.50 588.00 577.00 359.50 95.50 0.00 0.00 2317.00
1961 0.00 0.00 0.00 8.00 179.00 506.50 560.67 b 597.00 291.50 119.00 0.00 0.00 2261.67
1962 0.00 a 0.00 0.00 68.00 340.00 429.31 a 516.50 528.50 196.00 136.50 0.00 0.00 2214.81
1963 0.00 0.00 12.00 62.50 195.50 557.00 644.50 515.50 323.50 291.50 0.00 0.00 2602.00
1964 0.00 0.00 0.00 54.50 367.50 507.00 755.50 471.00 265.50 66.50 30.50 0.00 2518.00
1965 0.00 0.00 0.00 12.00 312.50 455.50 573.50 510.50 188.00 81.50 3.50 0.00 2137.00
1966 0.00 0.00 2.00 11.00 165.50 512.00 714.50 492.00 290.00 62.00 2.00 0.00 2251.00
1967 0.00 0.00 9.00 28.50 120.50 490.00 549.00 462.00 269.00 103.00 0.00 0.00 2031.00
1968 0.00 0.00 24.50 66.50 122.50 481.00 602.50 556.50 266.00 127.50 5.00 0.00 2252.00
1969 0.00 0.00 0.00 24.50 242.00 292.50 638.00 623.00 297.50 82.00 0.00 0.00 2199.50
1970 0.00 0.00 0.00 91.00 262.00 511.50 658.50 576.00 287.50 77.00 0.00 0.00 a 2463.50
1971 0.00 0.00 0.00 54.50 144.00 620.00 518.00 509.50 338.00 173.50 2.00 0.00 2359.50
1972 0.00 0.00 0.00 13.00 320.00 444.50 564.50 581.00 279.50 54.50 0.00 0.00 2257.00
1973 0.00 0.00 0.00 28.00 131.50 555.50 660.82 a 620.00 294.50 169.00 3.50 0.00 2462.82
1974 0.00 0.00 0.00 72.00 146.00 407.00 747.50 501.00 193.00 74.50 4.66 a 0.00 2145.66
1975 0.00 0.00 0.00 5.00 296.50 479.50 699.50 609.50 192.50 119.00 27.00 0.00 2428.50
1976 0.00 0.00 1.50 71.00 198.50 532.50 687.50 584.00 276.00 89.00 0.00 0.00 a 2440.00
1977 0.00 0.00 4.50 193.50 474.50 508.50 702.00 462.00 329.00 16.00 5.00 0.00 2695.00
1978 0.00 0.00 3.00 26.00 261.50 506.50 599.50 589.50 456.00 51.00 14.50 0.00 2507.50
1979 0.00 0.00 0.00 25.50 196.85 a 453.50 636.50 523.00 341.00 64.00 1.00 0.00 2241.35
1980 0.00 0.00 0.00 86.00 327.00 517.50 726.00 602.50 326.00 59.50 2.00 0.00 2646.50
1981 0.00 0.00 9.50 56.00 188.00 497.50 639.00 577.50 262.50 30.50 16.50 0.00 a 2277.00
1982 0.00 0.00 0.00 18.00 296.50 370.50 714.50 587.50 270.50 75.50 2.00 0.00 2335.00
1983 0.00 0.00 3.00 17.50 117.50 500.50 778.50 757.50 357.50 79.50 16.00 0.00 c 2627.50
1984 0.00 0.00 0.00 19.00 175.00 559.00 606.00 668.50 301.00 136.50 0.00 0.00 2465.00
1985 0.00 0.00 2.50 173.50 385.00 417.50 636.00 468.00 342.41 a 29.00 0.00 0.00 2453.91
1986 0.00 0.00 q 0.00 j 63.50 t 269.00 545.00 675.00 455.00 301.50 70.50 0.00 0.00 2316.00
1987 0.00 0.00 10.00 129.00 408.50 626.00 741.00 554.00 342.50 27.00 12.50 0.00 2850.50
1988 0.00 0.00 b 0.00 a 32.50 407.50 681.50 734.00 730.50 380.50 54.00 0.00 a 0.00 3020.50
1989 0.00 a 0.00 16.00 46.00 266.50 483.00 718.50 584.50 302.00 162.00 0.00 0.00 2578.50
1990 0.00 0.00 11.00 119.50 170.50 549.00 635.50 612.00 424.50 74.00 24.00 0.00 2620.00
1991 0.00 0.00 10.00 108.00 377.00 653.50 607.50 580.00 294.50 58.00 0.00 0.00 2688.50
1992 0.00 0.00 a 0.00 19.00 283.50 440.00 412.50 406.00 238.50 108.00 0.00 0.00 a 1907.50
1993 0.00 0.00 0.00 12.50 166.00 399.00 538.50 572.50 151.00 67.50 0.00 0.00 1907.00
1994 0.00 0.00 1.00 76.50 278.50 559.00 539.00 491.50 400.50 102.00 2.00 0.00 2450.00
1995 0.00 0.00 4.50 1.00 161.20 a 580.00 634.50 723.00 268.50 89.50 0.00 0.00 2462.20
1996 0.00 0.00 0.00 11.00 141.00 480.50 535.00 0.00 z 0.00 z 3.50 u 0.00 0.00 1167.50
1997 0.00 0.00 0.50 11.50 61.50 508.50 568.50 451.00 297.00 137.50 0.00 0.00 2036.00
1998 0.00 0.00 20.50 44.50 375.62 a 399.00 584.87 a 582.50 425.00 52.50 0.00 0.00 2484.48
1999 0.00 0.00 1.00 11.50 248.00 448.50 703.50 492.50 242.50 55.50 21.00 0.00 2224.00
2000 0.00 0.00 8.78 a 37.00 270.50 370.00 f 576.00 544.50 303.50 133.50 11.90 a 0.00 1885.68
2001 0.00 0.00 0.00 66.00 226.50 445.50 635.50 587.00 213.00 42.50 29.50 3.00 2248.50
2002 0.00 0.00 0.00 84.00 151.50 530.00 685.50 518.00 365.00 59.50 0.00 0.00 2393.50
2003 0.00 0.00 1.50 63.50 158.50 420.00 593.50 615.50 283.00 103.50 0.00 0.00 2239.00
2004 0.00 0.00 12.50 61.00 190.50 377.50 522.00 381.50 383.50 60.00 5.50 0.00 1994.00
2005 0.00 0.00 2.50 84.00 174.00 596.50 642.00 508.00 388.50 134.00 0.00 0.00 2529.50
2006 0.00 0.00 0.00 69.00 249.00 478.50 693.50 568.50 209.00 77.00 10.00 0.00 2354.50
2007 0.00 0.00 30.00 73.00 310.00 514.50 594.50 562.50 353.50 160.00 0.00 0.00 2598.00
2008 0.00 0.00 0.00 30.50 123.00 464.00 615.00 509.00 333.00 70.00 37.50 0.00 2182.00
2009 0.00 0.00 0.00 a 38.00 191.50 412.00 428.50 435.50 312.00 6.00 1.50 0.00 1825.00
2010 0.00 0.00 7.50 78.00 253.50 457.50 627.50 640.00 223.80 e 133.54 e 2.00 0.00 2423.34
2011 0.00 0.00 0.00 17.50 202.50 513.60 e 709.50 559.00 240.00 133.50 0.50 0.00 2376.10
2012 0.00 0.00 125.00 27.60 e 319.50 535.50 771.00 492.50 282.50 55.00 9.00 0.00 2617.60
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 0.01 5.07 56.23 242.03 489.24 646.84 575.44 317.66 98.07 5.15 0.03 2433.45
S.D. 0.00 0.09 14.67 42.34 90.53 87.52 84.61 86.26 78.73 53.63 7.80 0.27 274.96
SKEW 0.00 10.72 5.99 1.05 0.42 0.05 0.16 0.50 0.24 0.97 1.80 10.82 0.15
MAX 0.00 1.00 125.00 206.00 519.50 712.00 908.50 846.50 530.00 291.50 37.50 3.00 3177.50
MIN 0.00 0.00 0.00 0.00 52.50 292.50 412.50 381.50 151.00 6.00 0.00 0.00 1825.00
NO YRS 120 118 117 117 119 117 120 119 119 119 120 120 112