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
1897 0.00 z 0.00 0.00 75.56 c 255.00 0.00 z 780.37 e 546.67 e 181.00 0.00 z 0.00 z 0.00 1838.59
1898 0.00 c 0.00 i 0.00 8.50 172.00 442.00 589.00 448.00 326.50 32.50 0.00 0.00 2018.50
1899 0.00 0.00 0.00 77.50 189.50 466.00 661.00 559.50 209.50 24.00 0.00 0.00 z 2187.00
1900 0.00 z 0.00 0.00 119.50 300.00 457.00 541.50 0.00 z 276.50 181.00 0.00 0.00 z 1875.50
1901 0.00 z 0.00 z 0.00 z 72.50 242.50 413.50 690.50 538.00 211.00 77.50 0.00 z 0.00 z 2245.50
1902 0.00 z 0.00 z 0.00 z 15.00 a 248.00 a 137.50 l 607.94 d 434.50 162.69 d 9.76 d 0.00 b 0.00 c 1477.90
1903 0.00 0.00 0.00 f 7.24 a 213.79 b 314.46 b 503.46 d 385.95 a 199.66 a 18.60 a 3.62 a 0.00 a 1646.79
1904 0.00 a 0.00 0.00 b 13.39 b 155.00 a 319.00 450.02 a 383.37 a 197.00 30.50 1.00 0.00 1549.28
1905 0.00 a 0.00 1.55 a 0.00 i 0.00 z 140.50 r 317.50 m 323.50 j 298.93 b 92.40 e 0.00 e 0.00 392.88
1906 0.00 0.00 0.00 b 46.00 142.50 366.50 518.50 525.00 365.17 a 57.41 d 2.00 0.00 2023.08
1907 0.00 f 0.00 0.00 0.00 l 37.50 f 200.00 k 438.50 f 483.48 e 211.55 a 26.50 g 2.50 0.00 b 697.53
1908 0.00 0.00 0.00 f 79.00 174.24 b 362.00 554.90 a 243.00 q 257.00 m 83.70 a 0.00 e 0.00 a 1253.84
1909 0.00 c 0.00 b 0.00 5.00 c 155.50 421.50 542.50 a 615.00 234.50 77.00 5.00 0.00 2056.00
1910 0.00 0.00 45.50 79.80 e 85.25 e 492.50 0.00 z 457.80 c 233.04 b 136.00 0.00 0.00 1529.89
1911 0.00 b 0.00 e 3.50 40.34 a 254.56 e 528.21 b 507.50 398.50 186.67 c 13.78 d 0.00 b 0.00 c 1933.06
1912 0.00 0.00 a 0.00 a 27.00 159.59 d 253.50 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00 o 0.00 z 186.59
1913 0.00 z 0.00 z 0.00 g 0.00 z 0.00 z 391.00 g 506.33 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 506.33
1914 0.00 z 0.00 g 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
1915 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
1916 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 221.00 55.50 7.00 0.00 283.50
1917 0.00 0.00 0.00 0.00 107.00 293.50 612.50 417.50 226.00 6.00 0.00 0.00 1662.50
1918 0.00 0.00 2.00 8.50 228.00 393.00 548.50 543.50 122.00 54.50 3.50 0.00 1903.50
1919 0.00 0.00 0.00 5.00 216.00 526.00 646.50 493.50 324.00 34.50 0.00 0.00 2245.50
1920 0.00 0.00 0.00 0.00 218.50 446.50 522.50 526.00 369.50 155.00 0.00 0.00 2238.00
1921 0.00 0.00 0.00 61.00 288.00 601.50 573.50 g 530.00 297.00 39.00 0.00 0.00 1816.50
1922 0.00 0.00 0.00 8.00 297.50 449.50 505.50 604.00 363.50 114.50 0.00 0.00 2342.50
1923 0.00 0.00 c 0.00 37.00 223.50 545.50 682.00 d 451.10 b 338.50 62.00 0.00 0.00 2339.60
1924 0.00 0.00 0.00 7.50 46.00 318.50 506.50 451.50 146.50 114.00 0.00 0.00 1590.50
1925 0.00 0.00 2.00 61.00 156.00 419.00 411.00 f 596.00 213.00 h 0.00 0.00 0.00 1234.00
1926 0.00 a 0.00 0.00 c 46.20 e 0.00 z 320.00 585.00 495.50 167.50 51.00 0.00 0.00 1665.20
1927 0.00 0.00 f 0.50 20.00 85.00 363.00 484.00 376.50 360.50 37.00 0.00 0.00 1726.50
1928 0.00 0.00 6.50 18.00 269.50 292.00 588.50 539.50 201.00 89.50 1.50 0.00 2006.00
1929 0.00 0.00 0.00 21.00 159.00 373.00 669.71 b 567.50 221.50 48.50 0.00 0.00 b 2060.21
1930 0.00 0.00 0.00 74.50 210.59 b 477.00 254.00 r 666.50 325.50 132.00 7.00 0.00 1893.09
1931 0.00 0.00 0.00 100.56 c 221.00 605.17 a 713.52 a 544.50 492.00 132.00 8.00 0.00 2816.74
1932 0.00 0.00 0.00 28.00 255.23 a 570.50 690.00 631.50 275.50 65.50 0.50 0.00 2516.73
1933 0.00 a 0.00 0.00 23.50 254.50 734.00 762.60 a 574.50 460.00 53.00 9.00 0.00 2871.10
1934 0.00 a 0.00 0.00 51.50 488.77 a 571.00 703.50 545.60 a 233.50 165.33 a 0.00 a 0.00 2759.20
1935 0.00 a 0.00 3.00 37.50 153.45 a 361.50 818.00 618.50 283.97 a 59.00 0.00 0.00 2334.92
1936 0.00 0.00 0.00 11.50 352.50 438.50 842.88 b 657.50 413.50 64.50 0.00 0.00 2780.88
1937 0.00 a 0.00 a 0.00 5.50 261.00 451.50 712.50 756.50 341.50 67.17 a 0.00 0.00 2595.67
1938 0.00 0.00 10.85 a 83.00 174.50 476.00 662.00 715.00 360.52 a 179.50 18.62 a 0.00 2679.99
1939 0.00 0.00 a 0.00 46.50 345.00 479.50 680.45 a 584.00 355.50 66.13 a 0.00 m 0.00 c 2557.08
1940 0.00 0.00 0.00 22.50 192.00 459.50 702.00 518.00 413.79 a 115.00 0.00 0.00 2422.79
1941 0.00 0.00 0.00 116.00 361.00 487.50 699.00 615.00 326.50 52.00 0.00 d 0.00 2657.00
1942 0.00 0.00 0.00 q 136.00 n 162.20 c 437.88 d 598.19 d 560.00 283.33 c 108.50 b 3.10 a 0.00 2153.20
1943 0.00 a 0.00 7.00 33.10 a 154.50 529.00 712.50 601.50 229.00 92.00 0.00 d 0.00 b 2358.60
1944 0.00 a 0.00 0.00 12.00 342.50 484.50 582.50 572.50 288.00 75.00 6.50 0.00 2363.50
1945 0.00 0.00 40.50 22.50 95.50 295.00 562.00 567.50 246.50 47.50 0.00 0.00 1877.00
1946 0.00 0.00 24.00 72.00 122.50 402.50 632.00 464.50 236.50 68.50 0.00 0.00 2022.50
1947 0.00 0.00 0.00 24.50 109.00 342.00 639.50 800.50 350.00 237.00 0.00 0.00 2502.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 640.00 600.00 477.00 90.33 b 0.00 a 0.00 1807.33
1949 0.00 0.00 0.00 41.90 a 241.50 503.00 664.50 645.00 201.00 109.00 2.50 0.00 2408.40
1950 0.00 0.00 0.00 4.00 152.50 481.00 581.50 484.63 a 287.00 102.00 4.50 0.00 a 2097.13
1951 0.00 0.00 0.00 b 41.50 301.50 359.50 610.00 468.00 0.00 z 90.93 a 0.00 0.00 a 1871.43
1952 0.00 0.00 0.00 116.50 241.00 529.00 647.00 527.50 339.50 13.43 a 0.00 0.00 2413.93
1953 0.00 0.00 0.00 11.00 220.00 546.00 651.00 658.50 286.50 194.00 3.50 0.00 2570.50
1954 0.00 a 0.00 0.00 20.50 137.00 535.50 636.00 526.50 228.00 34.50 0.00 0.00 2118.00
1955 0.00 0.00 0.00 83.50 323.50 485.00 765.50 693.00 262.76 a 81.00 0.00 0.00 2694.26
1956 0.00 0.00 0.00 0.00 c 211.00 549.00 520.69 d 545.00 192.00 137.00 14.50 0.00 a 2169.19
1957 0.00 0.00 0.00 91.50 168.00 403.00 722.50 544.50 223.00 53.50 0.00 d 0.00 2206.00
1958 0.00 t 0.00 0.00 48.62 a 255.00 296.00 524.42 a 529.50 282.00 67.50 0.00 0.00 2003.04
1959 0.00 0.00 0.00 14.00 270.00 529.50 634.00 645.00 287.50 10.50 0.00 0.00 2390.50
1960 0.00 0.00 0.00 34.50 210.50 367.50 610.50 616.00 315.00 82.00 0.00 0.00 2236.00
1961 0.00 0.00 1.00 6.00 142.00 470.00 564.00 603.00 262.50 82.50 0.00 0.00 b 2131.00
1962 0.00 0.00 0.00 36.50 288.50 415.00 494.00 512.00 172.00 99.95 b 0.00 0.00 2017.95
1963 0.00 0.00 12.00 46.50 163.00 504.00 642.00 506.00 297.50 199.50 0.00 0.00 2370.50
1964 0.00 0.00 0.00 49.00 282.50 449.00 699.00 481.00 234.50 58.50 9.00 0.00 2262.50
1965 0.00 0.00 0.00 21.00 227.50 409.00 532.00 482.50 85.00 70.50 0.00 0.00 1827.50
1966 0.00 0.00 3.00 1.50 133.00 465.00 693.50 449.50 233.50 34.10 a 0.00 0.00 2013.10
1967 0.00 0.00 7.50 15.00 105.00 394.00 535.00 436.00 254.50 59.00 0.00 0.00 1806.00
1968 0.00 0.00 7.00 51.00 100.00 405.00 584.50 531.00 250.50 98.50 0.00 0.00 2027.50
1969 0.00 0.00 0.00 23.50 220.00 253.00 582.00 637.00 275.00 53.00 0.00 0.00 2043.50
1970 0.00 0.00 0.00 64.00 197.00 526.00 689.00 593.50 300.00 70.50 0.00 0.00 2440.00
1971 0.00 0.00 0.00 57.50 163.50 578.00 502.50 493.00 308.00 104.00 0.00 0.00 2206.50
1972 0.00 0.00 0.00 15.00 306.50 425.50 533.00 518.00 201.00 34.50 0.00 c 0.00 b 2033.50
1973 0.00 0.00 0.00 18.62 a 153.50 459.50 608.50 643.00 259.00 150.00 0.00 0.00 2292.12
1974 0.00 0.00 0.00 65.50 144.00 395.50 721.50 464.50 182.00 59.50 0.00 0.00 2032.50
1975 0.00 0.00 0.00 0.00 292.00 451.50 701.50 557.50 186.00 112.00 13.00 0.00 2313.50
1976 0.00 0.00 0.00 78.50 219.00 517.50 680.00 649.00 308.00 77.00 0.00 0.00 2529.00
1977 0.00 0.00 2.00 170.00 470.00 480.50 694.50 444.00 273.50 20.00 0.00 z 0.00 z 2554.50
1978 0.00 z 0.00 z 0.00 z 0.00 z 275.56 d 359.50 511.50 b 459.00 323.28 a 42.00 7.50 0.00 1978.33
1979 0.00 0.00 a 0.00 36.96 b 105.50 379.00 565.50 460.50 287.14 b 22.00 0.00 0.00 1856.61
1980 0.00 0.00 0.00 97.50 323.90 b 422.78 c 629.00 540.00 191.50 30.00 w 0.00 n 0.00 2204.67
1981 0.00 0.00 8.50 17.50 161.41 b 406.50 576.50 519.00 227.00 7.00 0.52 a 0.00 1923.93
1982 0.00 0.00 0.00 36.50 291.50 283.00 609.00 507.50 200.00 31.00 0.00 0.00 1958.50
1983 0.00 a 0.00 0.00 22.00 98.00 454.66 a 708.50 665.00 312.00 52.50 0.00 a 0.00 2312.66
1984 0.00 c 0.00 0.00 32.50 202.00 512.50 630.50 648.00 191.50 114.50 0.00 a 0.00 a 2331.50
1985 0.00 0.00 0.00 118.50 315.17 a 363.62 a 629.50 450.50 280.50 14.00 0.00 0.00 2171.79
1986 0.00 s 0.00 3.50 58.00 263.50 487.00 671.00 463.50 253.00 46.50 0.00 0.00 2246.00
1987 0.00 0.00 12.50 174.00 330.67 a 626.90 a 759.00 552.50 329.50 23.50 8.00 0.00 2816.56
1988 0.00 0.00 0.00 37.24 a 396.00 650.00 758.00 633.00 264.00 28.00 0.00 0.00 2766.24
1989 0.00 0.00 0.00 35.50 231.00 478.50 747.50 567.50 248.00 87.00 0.00 0.00 2395.00
1990 0.00 0.00 0.00 115.00 157.50 540.00 644.00 588.00 314.50 19.50 7.50 0.00 2386.00
1991 0.00 0.00 0.00 86.00 342.50 583.50 611.50 613.50 250.00 35.00 0.00 0.00 2522.00
1992 0.00 0.00 0.00 25.50 328.00 426.50 453.50 449.00 207.50 78.50 0.00 0.00 1968.50
1993 0.00 0.00 0.00 19.50 188.00 400.00 554.00 578.00 145.00 33.00 0.00 0.00 a 1917.50
1994 0.00 0.00 0.00 35.00 243.50 481.00 548.50 463.50 326.50 48.50 0.00 0.00 2146.50
1995 0.00 0.00 0.00 0.00 a 118.00 543.50 599.00 588.00 247.00 47.50 0.00 0.00 2143.00
1996 0.00 0.00 0.00 0.00 137.00 430.34 a 504.50 560.50 280.50 53.00 0.00 0.00 1965.84
1997 0.00 0.00 0.00 9.50 80.50 503.50 562.50 464.00 281.50 89.00 0.00 0.00 1990.50
1998 0.00 a 0.00 3.50 50.50 354.50 379.50 622.50 604.50 407.00 61.50 0.00 0.00 2483.50
1999 0.00 0.00 0.00 11.00 242.00 437.00 699.00 542.00 235.50 23.50 9.50 0.00 2199.50
2000 0.00 0.00 13.00 30.00 262.50 372.50 0.00 z 0.00 z 80.00 n 98.17 a 12.00 0.00 a 788.17
2001 0.00 0.00 0.00 a 67.00 242.50 444.50 618.00 620.00 232.00 35.00 13.50 0.00 2272.50
2002 0.00 0.00 0.00 60.00 120.00 496.50 670.00 512.00 326.00 30.50 0.00 0.00 2215.00
2003 0.00 0.00 1.00 53.00 168.50 397.00 578.50 614.00 295.50 93.50 0.00 0.00 2201.00
2004 0.00 0.00 0.00 50.00 127.50 320.50 526.00 354.50 382.00 44.50 0.00 0.00 1805.00
2005 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
2006 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
2007 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 z 0.00 z 0.00
2008 0.00 z 0.00 0.00 20.00 100.50 408.00 598.00 540.50 268.00 40.50 19.00 0.00 1994.50
2009 0.00 0.00 0.00 35.50 181.50 402.50 460.00 464.50 396.00 0.00 0.00 0.00 1940.00
2010 0.00 0.00 7.50 68.00 251.50 423.00 638.50 638.50 168.50 83.00 3.00 0.00 2281.50
2011 0.00 a 0.00 0.00 6.00 174.50 392.50 589.00 f 569.50 265.34 a 151.38 a 0.00 0.00 1559.23
2012 0.00 0.00 b 76.35 d 38.04 b 255.50 492.50 763.50 512.50 257.50 41.33 a 0.00 0.00 2437.22
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 2.96 42.27 216.25 446.67 620.09 544.12 270.71 70.74 1.98 0.00 2232.09
S.D. 0.00 0.00 10.00 35.93 84.57 86.87 85.39 83.03 74.54 46.88 4.13 0.00 294.08
SKEW 0.00 0.00 5.28 1.29 0.57 0.30 0.17 0.23 0.46 1.06 2.36 0.00 0.12
MAX 0.00 0.00 76.35 174.00 488.77 734.00 842.88 800.50 492.00 237.00 19.00 0.00 2871.10
MIN 0.00 0.00 0.00 0.00 46.00 253.00 450.02 354.50 85.00 0.00 0.00 0.00 1549.28
NO YRS 101 104 103 104 105 103 101 104 105 106 104 105 80