date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 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
1909 0.00 z 0.00 z 0.00 z 0.00 w 10.13 e 279.83 a 453.50 488.50 186.00 45.50 0.00 b 0.00 c 1463.46
1910 0.00 b 0.00 d 4.81 b 3.50 30.00 429.11 b 539.00 449.50 189.83 a 79.05 a 0.00 b 0.00 1724.80
1911 0.00 0.00 b 0.00 b 0.00 103.50 283.45 a 301.00 i 360.50 146.00 11.62 c 0.00 k 0.00 b 905.07
1912 0.00 d 0.00 b 0.00 e 5.17 a 56.32 a 255.52 a 395.52 b 268.00 213.46 d 72.73 e 0.00 d 0.00 p 1266.72
1913 0.00 a 0.00 a 0.00 17.14 b 41.16 b 284.00 342.03 a 318.50 f 195.00 a 23.00 h 0.00 0.00 e 879.33
1914 0.00 j 0.00 0.00 b 0.00 211.00 233.00 469.00 398.50 213.00 79.00 0.00 0.00 1603.50
1915 0.00 0.00 0.00 35.50 27.00 141.67 c 311.00 337.50 210.50 7.50 0.00 b 0.00 a 1070.67
1916 0.00 a 0.00 a 0.00 0.00 33.50 121.00 554.90 a 499.62 a 162.00 38.50 2.50 0.00 b 1412.02
1917 0.00 0.00 0.00 0.00 46.50 81.50 435.00 314.50 127.50 0.50 0.00 0.00 1005.50
1918 0.00 a 0.00 b 7.23 a 0.00 67.50 236.50 398.50 458.00 82.50 31.00 1.00 0.00 1282.23
1919 0.00 0.00 0.00 a 5.17 a 108.50 181.00 517.50 478.95 a 124.50 h 24.50 0.00 a 0.00 c 1315.62
1920 0.00 a 0.00 0.00 0.00 81.50 222.00 445.00 439.00 318.50 118.50 0.00 0.00 a 1624.50
1921 0.00 0.00 0.00 13.50 103.00 378.50 685.62 a 437.10 a 267.00 33.00 0.00 0.00 1917.72
1922 0.00 0.00 0.00 0.00 52.50 303.00 421.00 470.68 a 252.50 79.00 0.00 c 0.00 1578.68
1923 0.00 0.00 0.00 12.00 h 63.00 320.50 460.50 372.50 247.50 69.50 0.00 0.00 1533.50
1924 0.00 0.00 0.00 0.00 71.00 251.00 441.00 413.00 146.90 a 57.50 2.00 0.00 1382.40
1925 0.00 a 0.00 1.50 14.50 100.50 317.00 518.00 569.00 261.00 0.00 a 0.00 a 0.00 1781.50
1926 0.00 d 0.00 0.00 21.72 a 66.50 228.50 365.50 458.50 121.00 25.50 0.00 0.00 1287.22
1927 0.00 0.00 0.00 7.50 14.50 213.50 403.50 335.50 271.50 15.50 0.00 0.00 1261.50
1928 0.00 0.00 0.00 5.50 131.00 199.50 431.00 461.50 144.50 29.00 1.00 0.00 a 1403.00
1929 0.00 a 0.00 0.00 7.50 42.50 270.00 531.00 497.00 204.50 59.00 0.00 0.00 1611.50
1930 0.00 a 0.00 a 0.00 0.00 66.50 433.00 523.50 598.00 230.00 36.00 0.00 a 0.00 1887.00
1931 0.00 0.00 0.00 22.50 121.93 a 274.14 a 594.17 a 462.00 315.00 119.00 1.50 0.00 z 1910.24
1932 0.00 b 0.00 a 0.00 1.00 134.33 a 274.00 501.50 555.00 223.50 36.00 0.00 0.00 a 1725.33
1933 0.00 a 0.00 b 0.00 10.00 83.00 417.50 498.50 463.00 302.50 23.50 0.00 0.00 1798.00
1934 0.00 0.00 0.00 a 1.07 b 160.50 262.50 486.50 392.50 133.00 80.00 0.00 0.00 b 1516.07
1935 0.00 a 0.00 0.00 0.00 78.50 224.50 560.50 481.00 150.00 31.50 0.00 0.00 1526.00
1936 0.00 0.00 0.00 0.00 118.50 299.00 612.00 556.50 275.00 34.00 0.00 0.00 b 1895.00
1937 0.00 0.00 0.00 0.00 63.00 333.00 523.50 643.50 237.50 32.00 0.00 0.00 1832.50
1938 0.00 0.00 0.00 a 14.00 61.50 343.39 b 462.00 617.00 267.50 86.50 11.00 0.00 1862.89
1939 0.00 0.00 c 1.00 10.00 111.00 206.50 549.50 513.00 267.00 52.50 0.00 0.00 1710.50
1940 0.00 0.00 0.00 0.00 47.00 253.00 529.00 467.00 333.50 89.50 0.00 0.00 1719.00
1941 0.00 0.00 0.00 35.50 174.50 332.50 655.00 518.00 274.00 41.00 0.00 1.00 2031.50
1942 0.00 0.00 0.00 60.00 69.50 194.50 464.50 487.50 235.00 71.50 0.00 a 0.00 1582.50
1943 0.00 0.00 0.00 19.50 92.00 255.50 626.50 530.00 141.50 85.00 0.00 0.00 1750.00
1944 0.00 0.00 0.00 0.00 144.50 278.00 521.50 517.50 221.50 54.00 0.00 a 0.00 1737.00
1945 0.00 0.00 0.00 1.00 39.50 256.50 491.00 528.00 189.50 33.50 0.00 0.00 1539.00
1946 0.00 a 0.00 23.50 27.00 60.50 276.00 541.50 476.50 190.50 48.50 0.00 0.00 j 1644.00
1947 0.00 f 0.00 b 0.00 c 6.21 a 28.50 g 0.00 z 507.00 539.50 250.50 f 182.00 0.00 0.00 a 1234.71
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 342.00 507.00 528.00 361.50 46.00 0.00 0.00 1784.50
1949 0.00 0.00 0.00 71.00 95.50 423.62 a 554.50 558.50 148.00 48.50 3.50 0.00 1903.12
1950 0.00 0.00 0.00 0.00 46.00 256.00 356.00 268.50 183.00 33.50 0.00 0.00 1143.00
1951 0.00 0.00 0.00 a 15.52 a 188.50 253.00 498.00 342.50 150.50 45.50 0.00 0.00 1493.52
1952 0.00 a 0.00 b 0.00 100.50 91.00 g 348.50 542.50 b 457.50 240.00 21.18 a 0.00 0.00 1710.18
1953 0.00 0.00 0.00 7.00 100.23 a 287.59 a 483.50 567.50 207.00 e 112.63 a 7.00 0.00 1772.45
1954 0.00 0.00 0.00 3.50 49.60 a 328.00 511.00 465.50 185.00 20.50 3.00 0.00 1566.10
1955 0.00 d 0.00 0.00 41.50 135.37 a 349.50 610.18 a 619.00 223.50 72.00 0.00 0.00 2051.05
1956 0.00 0.00 0.00 0.00 b 87.00 295.00 343.50 379.50 147.50 103.00 3.00 0.00 a 1358.50
1957 0.00 0.00 a 0.00 49.00 114.50 211.50 516.50 489.80 a 183.00 25.00 0.00 0.00 1589.30
1958 0.00 0.00 0.00 30.52 a 105.92 a 173.50 413.00 433.00 250.00 51.50 0.00 0.00 a 1457.43
1959 0.00 0.00 0.00 12.50 106.00 343.50 535.78 a 530.00 263.00 19.50 0.00 0.00 1810.28
1960 0.00 0.00 0.00 19.00 70.50 277.50 496.50 535.50 256.00 54.00 0.00 0.00 1709.00
1961 0.00 0.00 0.00 6.50 111.00 333.50 489.50 584.00 271.50 106.50 0.00 0.00 1902.50
1962 0.00 0.00 0.00 b 10.50 80.50 216.50 373.50 410.50 177.50 75.00 0.00 0.00 1344.00
1963 0.00 0.00 0.50 8.50 99.00 279.50 586.50 419.00 268.50 169.00 0.00 0.00 1830.50
1964 0.00 0.00 0.00 5.50 168.00 243.00 515.50 338.00 0.00 z 88.50 5.50 0.00 1364.00
1965 0.00 0.00 0.00 22.50 86.36 c 221.50 336.50 387.50 94.50 31.50 0.00 0.00 1180.36
1966 0.00 0.00 z 0.00 0.50 101.00 334.00 578.50 430.50 180.00 34.10 a 0.00 0.00 1658.60
1967 0.00 a 0.00 b 6.72 a 1.00 42.50 0.00 z 0.00 z 128.50 t 276.00 60.50 0.00 0.00 386.72
1968 0.00 0.00 2.00 31.50 34.00 209.00 477.50 0.00 z 263.50 89.00 0.00 0.00 1106.50
1969 0.00 0.00 0.00 3.50 110.50 128.50 397.00 624.50 271.50 13.50 0.00 0.00 1549.00
1970 0.00 0.00 0.00 z 1.00 37.50 266.50 588.00 543.50 218.00 19.00 0.00 0.00 1673.50
1971 0.00 0.00 0.00 3.00 57.50 237.00 416.50 423.50 242.50 79.00 0.00 0.00 1459.00
1972 0.00 0.00 0.00 0.50 24.00 207.00 366.50 387.50 159.50 19.50 0.00 0.00 1164.50
1973 0.00 0.00 0.00 12.50 28.50 234.50 521.00 487.50 218.50 74.00 0.00 0.00 1576.50
1974 0.00 0.00 l 0.00 0.00 19.50 260.50 516.50 377.00 115.00 16.00 0.00 0.00 1304.50
1975 0.00 0.00 0.00 0.00 140.00 213.00 675.50 473.00 149.00 48.00 29.50 0.00 1728.00
1976 0.00 0.00 0.00 z 20.00 64.50 341.00 556.50 512.50 241.00 38.00 0.00 0.00 1773.50
1977 0.00 0.00 0.00 13.50 115.50 206.25 b 455.50 294.50 98.00 9.00 0.00 0.00 1192.25
1978 0.00 b 0.00 0.00 0.00 70.00 295.50 439.34 b 422.63 a 272.50 47.50 2.50 0.00 1549.98
1979 0.00 0.00 0.00 2.50 31.00 198.50 436.00 359.00 239.50 16.50 0.00 0.00 1283.00
1980 0.00 a 0.00 0.00 23.00 136.50 269.50 555.50 429.00 165.50 26.50 0.00 0.00 1605.50
1981 0.00 0.00 0.00 3.00 60.00 219.50 0.00 z 0.00 z 216.50 30.00 0.00 0.00 529.00
1982 0.00 0.00 0.00 17.00 28.00 182.00 434.50 f 368.50 218.00 23.50 0.00 0.00 837.00
1983 0.00 0.00 0.00 6.50 25.00 176.00 589.50 669.00 233.50 13.00 0.00 0.00 1712.50
1984 0.00 0.00 0.00 10.50 94.50 210.00 525.00 512.50 180.50 17.05 a 0.00 0.00 1550.05
1985 0.00 0.00 0.00 8.00 h 107.00 f 192.50 494.00 345.50 193.00 17.50 0.00 0.00 a 1242.50
1986 0.00 0.00 0.00 13.39 b 99.50 282.50 474.50 444.00 141.00 40.50 0.00 0.00 1495.39
1987 0.00 0.00 4.65 a 68.79 a 117.50 370.00 563.00 507.50 288.00 12.50 0.00 0.00 1931.94
1988 0.00 0.00 0.00 4.50 116.50 438.62 a 681.00 505.82 a 225.00 21.00 0.00 0.00 1992.44
1989 0.00 0.00 0.00 2.50 83.50 213.00 539.00 520.50 260.00 46.00 0.00 0.00 1664.50
1990 0.00 0.00 0.00 19.50 29.50 348.50 0.00 z 486.50 308.50 21.50 7.50 0.00 1221.50
1991 0.00 0.00 0.00 8.50 88.50 221.50 500.50 590.00 217.00 22.00 0.00 0.00 1648.00
1992 0.00 0.00 0.00 0.00 179.50 225.00 359.00 402.50 209.50 51.50 0.00 0.00 1427.00
1993 0.00 0.00 0.00 0.00 83.00 179.00 428.00 495.00 83.50 19.00 0.00 0.00 1287.50
1994 0.00 0.00 0.00 20.50 154.50 322.50 462.00 415.50 286.50 51.50 1.00 0.00 1714.00
1995 0.00 0.00 0.00 0.00 119.00 321.00 476.50 524.00 231.00 60.50 0.00 0.00 1732.00
1996 0.00 a 0.00 0.00 0.00 57.50 0.00 z 376.00 501.00 248.50 55.50 0.00 0.00 1238.50
1997 0.00 0.00 0.00 4.00 26.50 364.00 436.50 424.00 303.00 81.50 0.00 0.00 1639.50
1998 0.00 0.00 0.50 40.50 176.50 251.00 583.32 a 600.00 385.50 63.50 0.00 0.00 2100.82
1999 0.00 0.00 0.00 5.50 133.96 c 321.50 603.98 a 482.64 b 0.00 z 0.50 q 5.56 c 0.00 1553.14
2000 0.00 0.00 0.00 0.50 115.50 252.50 464.00 552.00 250.50 67.00 5.50 0.00 b 1707.50
2001 0.00 0.00 0.00 34.00 111.50 310.00 518.73 a 586.00 256.50 42.00 20.36 b 0.00 1879.09
2002 0.00 0.00 0.00 13.50 100.50 307.00 647.00 487.00 297.00 22.00 0.00 0.00 1874.00
2003 0.00 0.00 0.00 17.00 49.00 217.50 580.50 484.50 f 280.00 88.00 0.00 0.00 1232.00
2004 0.00 0.00 0.00 7.00 19.50 259.50 482.50 358.50 306.00 49.00 0.00 0.00 1482.00
2005 0.00 0.00 0.00 12.32 b 36.00 259.00 546.50 460.50 363.00 69.50 0.00 0.00 1746.82
2006 0.00 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 574.50 227.50 0.00 z 0.00 0.00 802.00
2007 0.00 0.00 0.00 0.00 z 0.00 z 325.00 580.00 0.00 z 293.50 78.00 0.00 0.00 1276.50
2008 0.00 z 0.00 z 0.00 13.00 59.50 338.00 498.00 518.00 0.00 z 25.50 8.50 0.00 a 1460.50
2009 0.00 0.00 0.00 6.50 101.00 297.50 0.00 z 398.00 362.50 0.50 1.00 0.00 1167.00
2010 0.00 0.00 7.50 0.00 z 109.00 281.00 644.50 556.00 137.00 57.00 0.00 0.00 1792.00
2011 0.00 0.00 0.00 6.50 27.50 118.85 d 623.00 604.00 224.50 66.00 0.00 0.00 1670.35
2012 0.00 f 0.00 5.17 a 6.50 133.00 366.00 661.50 0.00 z 31.00 t 0.00 z 0.00 z 0.00 z 1172.17
Period of Record Statistics
MEAN 0.00 0.00 0.66 12.39 84.48 268.98 502.61 472.37 223.40 49.38 1.20 0.01 1610.14
S.D. 0.00 0.00 2.75 17.32 44.45 70.78 84.31 85.80 64.88 33.32 3.96 0.10 246.31
SKEW 0.00 0.00 6.37 2.54 0.48 0.11 -0.02 -0.15 0.01 1.28 5.08 9.85 -0.35
MAX 0.00 0.00 23.50 100.50 211.00 438.62 685.62 669.00 385.50 182.00 29.50 1.00 2100.82
MIN 0.00 0.00 0.00 0.00 10.13 81.50 311.00 268.00 82.50 0.00 0.00 0.00 1005.50
NO YRS 98 99 99 97 98 100 97 97 98 100 102 100 72