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
1934 0.00 z 0.00 z 0.00 z 31.00 342.50 526.50 585.00 379.50 186.00 81.00 0.00 0.00 2131.50
1935 0.00 0.00 0.00 28.00 103.00 276.50 716.00 481.00 185.50 37.00 0.00 b 0.00 b 1827.00
1936 0.00 0.00 0.00 a 8.50 318.00 355.00 713.50 513.50 339.50 37.00 0.00 a 0.00 2285.00
1937 0.00 0.00 0.00 1.50 186.00 368.50 625.00 614.66 b 246.72 a 25.00 0.00 0.00 2067.38
1938 0.00 0.00 a 0.00 45.50 137.43 a 348.50 522.50 424.00 h 155.50 g 93.00 a 36.96 b 0.00 b 1183.90
1939 0.00 0.00 b 0.00 c 38.89 c 234.71 c 228.50 j 534.23 a 478.00 399.31 a 38.50 0.00 c 0.00 i 1723.65
1940 0.00 c 0.00 e 0.00 11.50 79.50 347.00 509.00 409.00 254.50 52.00 0.00 a 0.00 a 1662.50
1941 0.00 n 0.00 0.00 87.41 a 241.50 420.00 a 517.18 a 412.00 284.00 19.50 4.00 0.00 1985.60
1942 0.00 c 0.00 a 0.00 b 95.17 a 124.60 e 367.50 502.00 451.05 a 200.17 a 56.83 a 2.50 0.00 1799.82
1943 0.00 0.00 0.00 2.50 115.73 a 464.48 a 596.50 494.45 a 140.17 a 55.50 o 0.00 0.00 1813.84
1944 0.00 a 0.00 a 0.00 1.00 269.50 440.89 b 503.50 513.00 236.50 39.00 16.50 0.00 2019.89
1945 0.00 0.00 26.00 42.50 61.00 251.00 447.00 450.00 235.00 46.50 0.00 0.00 1559.00
1946 0.00 0.00 6.50 31.00 101.00 367.50 532.00 419.05 c 220.18 b 78.00 f 0.00 f 0.00 a 1677.23
1947 0.00 0.00 a 0.00 8.50 71.30 a 303.00 526.50 689.00 318.00 199.00 1.50 0.00 2116.80
1948 0.00 0.00 0.00 60.00 125.50 360.00 a 555.00 511.50 318.50 29.50 4.00 0.00 k 1964.00
1949 0.00 0.00 0.00 z 26.90 a 77.50 y 468.00 579.00 501.00 145.50 84.00 0.00 0.00 1804.40
1950 0.00 0.00 0.00 0.00 84.50 334.00 369.00 322.00 184.00 93.00 c 5.50 0.00 1392.00
1951 0.00 0.00 0.00 25.00 248.50 285.50 507.00 360.50 152.00 60.00 0.00 0.00 1638.50
1952 0.00 a 0.00 0.00 72.50 148.50 449.00 578.00 426.00 274.50 8.50 2.50 0.00 1959.50
1953 0.00 a 0.00 0.00 2.50 170.00 433.00 513.05 a 490.66 b 223.93 b 118.00 o 6.21 a 0.00 l 1839.34
1954 0.00 g 0.00 d 0.00 c 18.89 c 112.50 441.92 d 278.00 l 385.95 a 180.00 19.00 0.00 0.00 1158.26
1955 0.00 0.00 0.00 48.00 229.00 361.00 686.65 a 567.30 a 219.31 a 80.00 0.00 b 0.00 2191.26
1956 0.00 0.00 a 0.00 0.00 153.00 450.50 409.50 448.50 154.50 110.00 37.00 0.00 a 1763.00
1957 0.00 0.00 0.00 61.00 138.00 382.50 581.50 427.00 170.00 28.00 0.00 a 0.00 1788.00
1958 0.00 0.00 0.00 29.00 130.00 253.93 b 456.00 449.50 236.00 54.77 a 0.00 a 0.00 a 1609.20
1959 0.00 0.00 0.00 4.00 281.00 420.50 523.00 592.00 277.00 19.00 0.00 0.00 2116.50
1960 0.00 0.00 a 0.00 41.50 172.00 313.50 494.00 528.50 285.00 53.22 a 0.00 0.00 1887.72
1961 0.00 0.00 0.00 2.59 a 109.00 415.50 515.00 528.50 266.38 a 91.00 0.00 0.00 1927.97
1962 0.00 0.00 0.00 37.00 287.00 378.00 464.00 458.00 151.50 98.50 0.00 0.00 1874.00
1963 0.00 0.00 0.00 38.50 123.00 443.00 561.00 392.00 219.00 167.00 0.00 0.00 1943.50
1964 0.00 0.00 0.00 20.00 274.87 a 394.50 591.50 347.50 191.00 37.00 14.50 0.00 1870.87
1965 0.00 0.00 0.00 9.00 169.50 k 323.50 422.50 406.00 99.83 a 58.00 0.00 0.00 1318.83
1966 0.00 m 0.00 0.50 0.50 87.00 428.00 606.00 357.50 224.50 44.50 0.00 0.00 1748.50
1967 0.00 0.00 7.50 6.50 88.00 406.00 455.50 361.00 215.00 54.00 0.00 0.00 1593.50
1968 0.00 0.00 0.50 25.00 87.00 372.50 521.50 468.50 247.50 114.00 0.00 0.00 1836.50
1969 0.00 0.00 0.00 18.50 209.00 202.50 501.00 565.00 245.50 61.00 0.00 0.00 1802.50
1970 0.00 0.00 0.00 75.50 193.50 446.50 621.00 504.50 271.00 65.00 0.00 0.00 2177.00
1971 0.00 0.00 0.00 14.50 63.50 470.00 427.00 384.00 280.50 126.00 0.00 0.00 1765.50
1972 0.00 0.00 0.00 0.50 257.50 329.00 484.50 474.00 134.50 7.50 0.00 0.00 1687.50
1973 0.00 0.00 0.00 25.50 55.50 379.50 503.00 475.50 194.50 99.50 0.00 0.00 1733.00
1974 0.00 0.00 0.00 42.00 85.50 233.00 538.00 369.50 67.50 25.50 4.50 0.00 1365.50
1975 0.00 0.00 0.00 0.00 235.00 346.00 556.50 407.00 91.50 48.00 8.00 0.00 1692.00
1976 0.00 0.00 0.00 43.00 89.00 428.50 510.50 392.00 139.00 36.50 0.00 a 0.00 1638.50
1977 0.00 0.00 1.00 80.50 373.00 300.00 556.00 269.50 162.50 11.00 3.00 0.00 1756.50
1978 0.00 0.00 0.00 7.00 212.00 313.50 414.00 440.00 270.50 15.50 3.00 0.00 1675.50
1979 0.00 0.00 0.00 20.50 73.00 295.00 490.50 357.50 191.50 16.00 0.00 0.00 1444.00
1980 0.00 0.00 0.00 34.50 239.50 306.00 508.00 430.50 19.00 n 14.00 0.00 0.00 1532.50
1981 0.00 0.00 0.00 1.00 85.00 314.50 436.00 430.00 118.00 6.00 0.00 0.00 1390.50
1982 0.00 0.00 0.00 12.00 223.00 158.00 528.00 375.50 143.50 34.00 0.00 0.00 1474.00
1983 0.00 0.00 0.00 6.00 29.50 318.00 618.50 551.00 249.50 44.00 0.00 p 0.00 z 1816.50
1984 0.00 h 0.00 0.00 18.00 81.50 391.50 414.50 476.37 a 115.00 67.00 0.00 0.00 1563.87
1985 0.00 0.00 0.00 78.50 166.00 154.50 k 353.50 302.00 190.50 0.00 q 0.00 0.00 1090.50
1986 0.00 0.00 0.00 a 46.50 191.50 297.50 479.00 282.00 147.50 2.50 0.00 0.00 1446.50
1987 0.00 0.00 1.50 37.50 131.50 348.50 429.00 302.50 208.50 2.00 2.00 0.00 1463.00
1988 0.00 0.00 0.00 0.00 214.00 448.50 596.00 527.00 176.50 17.50 0.00 0.00 a 1979.50
1989 0.00 0.00 0.00 7.50 161.00 296.50 542.00 439.50 191.50 66.00 0.00 0.00 1704.00
1990 0.00 0.00 2.00 102.00 75.00 346.50 470.50 156.00 s 65.50 m 9.00 4.50 0.00 1009.50
1991 0.00 0.00 0.00 34.00 285.00 0.00 z 479.50 513.00 176.00 4.50 0.00 0.00 m 1492.00
1992 0.00 0.00 0.00 2.50 169.00 248.28 a 329.50 322.00 142.50 40.50 0.00 0.00 1254.28
1993 0.00 0.00 0.00 m 2.00 111.50 269.50 465.00 444.50 53.50 16.00 0.00 0.00 1362.00
1994 0.00 0.00 0.00 k 12.50 157.00 416.00 449.00 370.50 278.00 31.00 m 0.00 0.00 1683.00
1995 0.00 0.00 1.00 0.00 80.50 509.50 507.50 565.50 174.50 46.50 0.00 n 0.00 1885.00
1996 0.00 0.00 0.00 0.00 94.00 367.00 390.00 454.50 199.50 33.00 0.00 0.00 1538.00
1997 0.00 0.00 a 0.00 l 1.00 26.00 431.00 464.50 336.50 214.00 88.00 0.00 0.00 1561.00
1998 0.00 0.00 0.00 l 19.50 291.50 358.50 545.50 533.50 343.50 39.00 1.00 0.00 2132.00
1999 0.00 0.00 0.00 12.00 213.50 384.00 601.00 403.50 189.00 8.50 8.00 0.00 1819.50
2000 0.00 0.00 8.50 16.00 185.50 309.50 477.50 470.00 207.50 78.53 a 11.50 0.00 1764.53
2001 0.00 0.00 0.00 a 20.50 180.00 395.50 536.50 555.00 205.50 24.50 6.50 0.00 1924.00
2002 0.00 0.00 0.00 35.50 97.50 437.00 661.50 489.50 302.00 35.50 0.00 l 0.00 2058.50
2003 0.00 0.00 0.00 20.00 103.50 333.00 521.00 584.00 282.50 61.50 0.00 0.00 1905.50
2004 0.00 0.00 0.00 16.00 h 75.50 275.00 456.00 305.50 325.50 33.00 0.00 q 0.00 1470.50
2005 0.00 0.00 0.00 c 40.50 129.00 523.00 594.00 531.50 349.50 91.00 0.00 0.00 2258.50
2006 0.00 0.00 0.00 l 24.50 201.50 433.00 684.50 508.50 182.00 32.50 0.00 0.00 2066.50
2007 0.00 0.00 6.50 j 29.50 207.50 427.50 526.00 482.50 241.50 134.50 0.00 0.00 2049.00
2008 0.00 0.00 0.00 17.50 48.50 352.50 514.00 451.50 252.00 35.00 15.00 0.00 1686.00
2009 0.00 0.00 0.00 11.50 110.00 341.50 359.50 387.00 317.00 1.50 0.00 0.00 1528.00
2010 0.00 0.00 2.50 j 50.50 266.50 373.50 586.50 549.00 121.50 55.00 0.50 0.00 c 2003.00
2011 0.00 z 0.00 z 0.00 z 0.00 y 128.50 339.50 633.00 473.27 a 193.97 a 110.00 0.00 c 0.00 1878.23
2012 0.00 0.00 47.00 k 15.50 206.50 438.33 c 659.27 a 440.00 195.50 0.00 y 0.00 z 0.00 z 1955.10
Period of Record Statistics
MEAN 0.00 0.00 0.81 25.94 159.04 366.87 520.98 448.82 213.37 51.63 2.72 0.00 1767.40
S.D. 0.00 0.00 3.48 24.69 79.28 73.54 82.09 83.57 68.94 39.45 6.86 0.00 244.36
SKEW 0.00 0.00 6.03 1.19 0.54 -0.21 0.14 0.10 0.19 1.27 3.76 0.00 0.13
MAX 0.00 0.00 26.00 102.00 373.00 526.50 716.00 689.00 399.31 199.00 37.00 0.00 2285.00
MIN 0.00 0.00 0.00 0.00 26.00 158.00 329.50 269.50 53.50 1.50 0.00 0.00 1254.28
NO YRS 73 77 68 77 77 76 78 77 76 73 73 73 49