GRAND FORKS INTL AP, NORTH DAKOTA

Monthly Total Growing Degree Days

(323616)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 461.50 h 381.00 45.00 0.00 0.00 426.00
1949 0.00 0.00 0.00 79.00 197.00 425.00 598.00 651.00 191.50 48.00 0.00 0.00 a 2189.50
1950 0.00 0.00 0.00 0.00 121.00 378.00 524.50 419.50 275.50 30.00 0.00 0.00 1748.50
1951 0.00 0.00 0.00 19.50 248.00 312.00 563.50 436.00 192.50 62.50 0.00 a 0.00 1834.00
1952 0.00 0.00 0.00 161.50 184.50 454.00 571.50 501.50 324.00 10.00 0.00 0.00 2207.00
1953 0.00 0.00 0.00 1.00 180.00 430.50 563.50 649.50 208.00 169.00 0.00 0.00 2201.50
1954 0.00 0.00 0.00 13.00 117.00 409.00 626.00 490.50 183.50 41.50 0.00 0.00 1880.50
1955 0.00 0.00 0.00 a 92.07 a 285.00 433.50 717.00 656.00 218.50 69.50 0.00 0.00 2471.57
1956 0.00 0.00 0.00 0.00 129.50 584.00 500.00 509.50 146.00 95.50 1.00 0.00 1965.50
1957 0.00 0.00 0.00 74.00 167.50 302.68 b 736.00 541.00 185.00 71.50 0.00 0.00 2077.68
1958 0.00 0.00 0.00 30.50 240.00 260.50 501.50 524.00 263.00 49.50 0.00 0.00 1869.00
1959 0.00 0.00 0.00 16.50 159.00 487.00 625.50 619.50 245.50 15.00 0.00 0.00 2168.00
1960 0.00 0.00 0.00 17.00 257.50 375.00 577.00 583.00 278.50 63.00 0.00 0.00 2151.00
1961 0.00 0.00 2.50 7.00 169.50 563.00 609.50 713.00 224.50 81.50 0.00 0.00 2370.50
1962 0.00 0.00 0.00 17.50 184.00 445.50 493.50 561.00 141.50 93.00 0.00 0.00 1936.00
1963 0.00 0.00 6.00 26.90 a 163.50 545.00 667.50 576.50 323.50 259.50 0.00 0.00 2568.40
1964 0.00 0.00 0.00 37.50 287.00 416.00 705.50 479.00 221.00 28.50 2.50 0.00 2177.00
1965 0.00 0.00 0.00 10.50 100.50 346.50 470.00 420.50 28.00 25.00 0.00 0.00 1401.00
1966 0.00 0.00 0.00 1.50 101.50 388.50 607.00 448.00 239.00 29.00 0.00 0.00 1814.50
1967 0.00 0.00 3.50 0.00 130.00 346.50 525.50 460.00 308.50 29.50 0.00 0.00 1803.50
1968 0.00 0.00 0.00 25.00 84.50 259.50 500.50 394.50 197.00 13.50 0.00 0.00 1474.50
1969 0.00 0.00 0.00 26.50 163.00 171.00 485.00 626.00 238.00 10.50 0.00 0.00 1720.00
1970 0.00 0.00 0.00 0.50 137.00 597.00 677.00 553.50 270.50 45.50 0.00 0.00 2281.00
1971 0.00 0.00 0.00 24.00 161.50 498.50 419.50 537.00 252.00 27.50 0.00 0.00 1920.00
1972 0.00 0.00 0.00 7.50 269.00 420.00 405.50 515.50 144.50 35.50 0.00 0.00 1797.50
1973 0.00 0.00 0.00 24.00 172.00 394.00 504.00 634.50 203.00 99.50 0.00 0.00 2031.00
1974 0.00 0.00 0.00 14.00 92.50 437.50 695.00 389.50 131.00 26.50 0.00 0.00 1786.00
1975 0.00 0.00 0.00 0.00 200.50 415.00 646.00 484.00 138.50 77.50 15.50 0.00 1977.00
1976 0.00 0.00 0.00 16.00 239.50 528.00 624.50 646.50 309.50 53.00 0.00 0.00 2417.00
1977 0.00 0.00 0.00 123.50 526.50 475.50 632.00 335.50 189.00 33.50 5.00 0.00 2320.50
1978 0.00 0.00 0.00 23.50 309.50 432.00 579.00 532.50 353.00 55.50 3.00 0.00 2288.00
1979 0.00 0.00 0.00 2.00 100.50 406.00 590.50 454.00 270.50 14.50 0.00 0.00 1838.00
1980 0.00 0.00 0.00 109.50 397.50 448.50 654.50 452.50 220.00 52.50 0.00 0.00 2335.00
1981 0.00 0.00 0.00 30.00 195.50 364.50 574.50 609.00 213.50 34.00 1.00 0.00 2022.00
1982 0.00 0.00 0.00 37.00 226.00 243.50 582.50 497.50 224.00 24.00 0.00 0.00 1834.50
1983 0.00 0.00 0.00 13.00 110.50 437.00 696.50 712.00 234.50 12.50 1.00 0.00 2217.00
1984 0.00 p 0.00 0.00 6.00 172.00 436.50 583.00 632.00 167.00 116.50 0.00 0.00 2113.00
1985 0.00 0.00 0.00 91.50 321.50 293.00 523.00 404.00 166.50 17.00 0.00 0.00 1816.50
1986 0.00 0.00 6.00 14.50 310.00 499.00 636.50 454.00 174.50 22.00 0.00 0.00 2116.50
1987 0.00 0.00 0.00 112.00 338.50 504.50 648.00 454.00 244.00 11.50 0.00 0.00 2312.50
1988 0.00 0.00 0.00 38.00 366.00 640.50 662.50 597.00 204.50 35.50 0.00 0.00 2544.00
1989 0.00 0.00 0.00 21.50 267.00 390.00 740.50 601.00 275.00 72.00 0.00 0.00 2367.00
1990 0.00 0.00 0.00 103.50 170.00 464.00 573.00 612.00 330.50 31.50 0.00 0.00 2284.50
1991 0.00 0.00 z 0.00 73.00 411.50 561.00 609.00 662.50 260.00 18.00 0.00 0.00 2595.00
1992 0.00 0.00 0.00 43.00 301.50 343.50 394.50 445.50 184.00 71.00 0.00 0.00 1783.00
1993 0.00 0.00 0.00 0.00 204.00 353.50 485.00 524.50 143.50 25.50 0.00 0.00 1736.00
1994 0.00 0.00 0.00 19.50 297.50 510.00 537.00 507.00 340.50 71.50 0.00 0.00 2283.00
1995 0.00 0.00 z 0.00 0.00 152.00 614.00 598.00 619.50 270.00 37.50 0.00 0.00 2291.00
1996 0.00 0.00 0.00 2.50 181.00 541.50 576.50 614.00 268.50 55.00 0.00 0.00 2239.00
1997 0.00 0.00 0.00 z 4.50 153.50 603.50 652.00 604.00 370.00 0.00 z 0.00 z 0.00 z 2387.50
1998 0.00 0.00 0.00 62.00 269.00 353.00 582.00 622.00 322.00 20.00 0.00 0.00 2230.00
1999 0.00 a 0.00 0.00 a 35.00 201.50 403.50 591.00 477.50 140.50 8.50 1.50 0.00 1859.00
2000 0.00 0.00 c 0.00 21.00 143.00 338.00 597.00 533.50 214.00 31.50 6.00 0.00 1884.00
2001 0.00 0.00 0.00 50.50 205.00 398.50 611.00 601.50 252.50 14.00 0.00 0.00 2133.00
2002 0.00 0.00 0.00 37.50 118.50 496.00 651.50 503.50 318.50 2.00 0.00 0.00 2127.50
2003 0.00 0.00 0.00 37.50 141.50 410.00 563.00 629.50 252.00 95.00 0.00 0.00 2128.50
2004 0.00 0.00 0.00 16.00 93.50 301.00 488.00 298.50 295.50 54.00 0.00 0.00 1546.50
2005 0.00 0.00 0.00 46.00 175.50 484.50 610.50 487.00 307.00 32.00 0.00 0.00 2142.50
2006 0.00 0.00 0.00 64.50 233.00 487.00 692.50 565.00 236.50 54.00 0.00 0.00 2332.50
2007 0.00 0.00 0.00 56.50 234.50 495.50 662.00 477.50 259.00 38.00 1.50 0.00 2224.50
2008 0.00 0.00 0.00 6.50 97.00 355.00 544.00 556.50 227.00 28.00 4.00 0.00 1818.00
2009 0.00 0.00 0.00 10.50 86.00 375.50 478.00 461.50 434.50 0.00 0.00 0.00 1846.00
2010 0.00 0.00 6.00 58.50 256.50 436.50 657.50 639.50 168.50 89.50 0.00 0.00 2312.50
2011 0.00 0.00 0.00 8.00 149.00 443.00 693.00 607.50 299.00 154.50 0.00 0.00 2354.00
2012 0.00 0.00 43.00 35.50 239.00 491.50 769.50 545.50 250.00 21.50 0.00 0.00 2395.50
2013 0.00 0.00 0.00 a 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 1.05 33.69 204.62 428.95 591.53 536.72 239.11 49.35 0.66 0.00 2065.16
S.D. 0.00 0.00 5.50 35.27 88.78 95.26 82.47 90.34 70.94 43.20 2.23 0.00 265.74
SKEW 0.00 0.00 7.13 1.51 1.09 -0.09 -0.23 -0.27 0.06 2.40 5.14 0.00 -0.31
MAX 0.00 0.00 43.00 161.50 526.50 640.50 769.50 713.00 434.50 259.50 15.50 0.00 2568.40
MIN 0.00 0.00 0.00 0.00 84.50 171.00 394.50 298.50 28.00 0.00 0.00 0.00 1401.00
NO YRS 64 63 64 64 64 64 64 64 65 64 64 64 60