LOGAN UT STATE UNIV, UTAH

Monthly Total Growing Degree Days

(425186)

Base Temperature = 40 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
1893 0.00 a 0.00 a 12.00 168.50 434.50 724.50 678.00 k 897.85 d 599.44 c 300.70 a 67.76 a 21.59 c 3226.84
1894 0.00 c 0.00 a 14.98 a 214.66 a 574.05 c 646.15 d 994.00 975.90 e 551.25 b 321.50 125.50 0.00 4418.00
1895 0.00 0.00 58.50 248.00 431.00 607.50 771.50 806.00 490.00 377.00 40.50 0.00 3830.00
1896 8.00 10.50 73.00 155.50 259.00 784.50 970.50 943.00 619.50 386.00 59.00 0.00 4268.50
1897 0.00 0.00 2.50 180.00 647.00 678.50 886.00 1025.50 716.00 266.50 100.50 0.00 4502.50
1898 0.00 7.50 14.00 360.50 366.50 714.00 996.00 1084.50 671.50 177.50 51.50 0.00 4443.50
1899 0.00 0.00 19.00 234.00 351.50 660.00 1002.00 801.00 751.00 218.50 103.00 3.50 4143.50
1900 0.50 2.00 180.50 231.50 542.50 905.50 952.50 905.50 597.50 311.50 86.50 3.50 4719.50
1901 5.50 8.50 41.00 227.50 639.00 642.00 1138.50 1019.50 577.00 423.50 91.50 8.50 4822.00
1902 0.00 17.50 7.50 213.50 482.00 762.00 879.00 943.50 613.00 354.00 53.50 13.50 4339.00
1903 0.00 0.00 80.00 222.00 387.50 809.50 888.00 1007.50 556.00 326.00 36.00 0.00 4312.50
1904 0.00 20.00 31.00 261.50 503.50 677.00 985.50 825.50 726.00 392.50 64.00 4.00 4490.50
1905 0.50 1.50 112.00 349.00 447.50 755.00 1053.00 1037.00 730.50 225.50 79.50 0.00 4791.00
1906 3.00 5.50 35.50 286.50 374.50 517.00 959.00 771.00 510.00 137.50 37.50 18.00 3655.00
1907 0.00 27.50 73.50 224.50 366.50 610.50 967.50 860.50 626.50 466.00 33.00 3.00 4259.00
1908 0.00 18.00 97.00 336.50 305.50 478.50 1002.00 855.50 612.50 206.00 42.50 0.00 3954.00
1909 19.50 0.00 0.00 97.50 265.50 872.00 991.00 1022.00 627.00 357.50 87.50 0.00 4339.50
1910 1.00 0.00 168.50 385.00 530.00 814.50 1098.50 955.50 679.00 301.50 89.00 1.50 5024.00
1911 14.50 0.00 92.00 192.50 406.00 724.00 915.50 905.00 615.00 192.00 5.50 0.00 4062.00
1912 2.50 0.00 17.00 146.00 390.50 738.00 876.50 822.50 407.00 178.00 40.00 0.00 3618.00
1913 1.00 0.00 37.00 275.00 549.50 721.50 896.50 979.50 619.50 320.00 72.50 0.00 4472.00
1914 0.00 1.00 25.50 217.50 593.00 683.50 997.00 984.50 607.50 364.50 104.50 0.00 4578.50
1915 0.00 4.00 160.50 464.50 445.00 618.00 938.50 1031.50 636.00 385.00 105.50 5.00 4793.50
1916 0.00 3.50 120.50 316.50 359.00 698.50 1060.50 1009.00 698.50 237.00 45.00 0.00 4548.00
1917 0.00 0.00 4.00 102.50 360.00 647.50 1089.00 988.00 695.50 364.50 87.00 60.50 4398.50
1918 1.00 0.00 146.50 222.00 453.50 961.50 1025.50 901.00 726.00 382.00 47.50 15.00 4881.50
1919 2.50 1.00 103.50 284.00 615.50 875.00 1087.50 1027.50 690.50 123.00 22.00 2.00 4834.00
1920 19.00 9.50 27.00 97.00 446.00 658.50 988.00 924.50 584.50 161.50 11.00 0.00 3926.50
1921 0.00 0.00 99.50 166.00 421.50 719.50 1015.00 956.50 574.00 446.00 109.50 0.50 4508.00
1922 0.00 0.00 5.00 111.50 483.50 901.00 1030.50 1071.00 780.00 390.50 3.00 3.50 4779.50
1923 6.50 0.00 22.50 159.50 486.50 621.00 1076.00 944.00 671.50 159.50 44.50 0.00 4191.50
1924 0.00 0.00 0.00 211.00 543.00 784.50 1009.00 973.50 643.50 297.50 63.00 1.00 4526.00
1925 0.00 15.00 120.00 302.00 595.00 669.00 1062.50 913.50 628.00 276.50 11.00 1.50 4594.00
1926 0.00 0.00 100.00 382.50 549.00 861.00 1034.00 990.50 574.50 350.00 95.50 25.50 4962.50
1927 0.00 6.50 39.50 224.00 437.00 767.00 1029.50 902.50 631.00 404.50 134.50 4.00 4580.00
1928 1.50 1.04 a 114.50 205.86 a 673.00 656.00 1001.00 947.57 a 681.60 e 299.15 a 40.00 2.50 4623.71
1929 0.00 0.00 48.64 b 167.59 a 494.45 a 699.50 1079.83 a 1089.98 c 551.38 a 394.00 13.39 b 63.03 a 4601.79
1930 0.00 29.62 b 75.78 d 441.11 c 470.50 731.38 a 1063.62 b 973.50 648.75 b 247.00 48.50 4.81 b 4734.56
1931 0.00 0.00 62.50 253.89 c 510.93 d 908.57 b 1149.98 e 1047.50 736.20 e 374.14 b 95.69 a 0.00 a 5139.39
1932 0.00 0.00 b 20.84 b 204.64 b 517.50 723.00 991.50 1009.05 a 684.44 c 280.00 94.82 b 4.50 4530.30
1933 0.00 b 0.00 30.47 b 173.57 b 361.50 930.52 a 1129.00 960.50 698.50 496.50 57.00 33.00 4870.55
1934 1.50 40.50 239.50 470.50 751.50 731.00 1118.07 a 1072.50 624.00 414.00 121.00 2.50 5586.57
1935 0.00 0.00 53.00 242.50 385.00 791.00 1091.00 1009.50 796.00 352.50 1.50 0.00 4722.00
1936 0.00 5.00 18.00 412.76 a 645.50 847.00 1127.00 1043.50 661.50 378.20 a 12.50 2.50 5153.46
1937 0.00 0.00 10.00 164.00 587.50 723.00 1067.00 1043.00 787.50 413.00 47.50 7.00 4849.50
1938 3.00 15.00 33.00 293.04 b 417.50 783.50 960.50 985.00 840.00 389.00 6.00 7.50 4733.04
1939 0.00 0.00 a 104.50 354.00 597.50 676.50 1045.00 1029.50 677.50 335.50 100.50 54.50 4975.00
1940 5.00 31.00 143.00 271.00 676.00 885.50 1106.00 1108.00 706.50 413.00 30.00 1.00 5376.00
1941 0.00 1.00 94.00 211.00 590.50 703.50 1025.50 941.50 528.00 233.50 78.00 11.00 4417.50
1942 0.00 0.00 2.50 289.50 365.50 679.50 1114.50 997.50 696.00 346.50 41.50 1.00 4534.00
1943 8.00 0.50 89.00 432.00 438.50 653.50 1014.50 996.28 b 783.10 a 407.00 45.52 a 0.00 d 4867.90
1944 0.00 a 4.50 14.97 b 182.50 530.00 608.57 b 986.66 b 954.50 665.00 464.45 c 42.50 0.00 4453.64
1945 3.50 3.00 36.50 196.11 c 527.00 a 534.31 a 1014.39 d 956.50 530.50 406.58 e 31.50 2.50 4242.39
1946 0.00 0.00 a 80.50 372.50 437.50 758.50 1061.48 b 1011.78 b 625.50 150.00 20.00 39.50 4557.26
1947 0.50 1.00 121.00 213.50 626.50 600.00 1059.50 949.50 696.50 390.00 9.00 0.00 4667.00
1948 1.50 8.50 20.15 a 185.00 492.50 720.52 a 968.00 976.50 711.50 398.50 46.00 0.00 4528.67
1949 0.00 0.00 59.86 b 369.50 553.00 646.50 966.17 a 1010.50 736.50 187.50 116.00 0.00 4645.53
1950 8.00 21.50 31.00 207.00 357.00 655.00 933.00 916.50 617.00 448.00 83.50 0.50 4278.00
1951 0.00 17.11 a 24.50 280.50 494.50 604.00 1004.50 912.00 649.50 261.00 23.50 6.50 4277.61
1952 0.00 0.00 3.00 250.00 547.50 740.50 967.00 1011.50 776.00 502.00 20.50 0.00 4818.00
1953 29.00 23.00 128.00 188.50 314.50 680.00 1072.50 997.00 761.50 381.50 153.00 0.00 4728.50
1954 0.00 a 22.00 52.50 365.17 a 599.50 631.50 1058.00 915.50 662.22 c 0.00 z 0.00 z 1.15 d 4307.54
1955 0.00 0.00 a 10.69 b 139.04 d 509.43 a 660.50 980.12 a 1036.36 b 657.86 b 352.22 b 19.00 g 46.50 c 4392.72
1956 0.00 c 2.07 a 105.40 a 286.11 c 563.17 a 780.00 c 1021.40 b 710.00 g 737.31 d 348.75 c 26.11 c 1.66 c 3871.98
1957 0.00 a 28.52 a 77.50 e 166.11 c 483.37 d 724.66 a 1008.57 b 1005.00 648.21 b 300.91 b 1.03 a 4.02 d 4447.91
1958 0.00 32.67 a 35.50 150.00 d 688.41 b 617.50 g 970.19 d 1066.63 d 668.00 413.16 b 72.00 14.00 4110.55
1959 0.00 a 0.00 45.50 277.00 408.00 819.50 1011.50 935.88 b 567.32 b 295.53 a 47.50 0.00 4407.73
1960 0.00 0.00 a 113.84 b 283.00 503.75 a 791.79 b 1127.37 a 899.00 b 766.55 a 344.10 a 69.00 0.00 4898.40
1961 0.00 17.00 83.50 227.59 a 547.84 b 905.50 1094.00 1048.12 b 519.83 a 292.43 a 17.14 b 8.50 4761.46
1962 2.58 a 25.50 33.07 a 376.55 a 499.50 742.00 953.77 a 935.68 a 707.68 b 434.00 92.50 0.00 4802.83
1963 0.00 59.00 92.50 146.38 a 605.00 643.97 a 1033.00 1038.50 764.48 a 499.50 57.00 0.00 a 4939.33
1964 0.00 0.00 0.00 a 158.50 506.00 617.50 1057.00 919.50 629.00 386.00 44.50 32.00 4350.00
1965 0.00 z 12.00 26.00 238.00 410.00 659.00 944.00 875.50 443.50 440.00 153.00 2.50 4203.50
1966 0.00 0.00 76.50 214.50 583.00 714.00 1101.00 957.00 668.00 284.50 111.00 4.00 4713.50
1967 8.00 2.00 80.00 106.00 440.50 619.50 1026.00 1051.50 717.50 309.50 113.50 0.00 4474.00
1968 0.00 3.50 81.50 115.50 444.00 681.00 1019.50 807.55 a 569.00 301.50 20.50 0.00 4043.55
1969 22.00 0.00 35.00 244.00 655.00 625.50 992.00 1068.00 763.50 149.50 58.00 6.00 4618.50
1970 23.50 16.50 26.50 93.50 459.50 766.00 998.00 1071.50 507.50 226.00 55.50 4.00 4248.00
1971 2.50 2.50 56.00 177.00 482.50 708.00 997.50 1051.00 518.50 239.50 34.00 4.00 4273.00
1972 2.50 48.00 181.50 191.00 528.50 793.50 983.50 993.50 582.00 369.00 17.50 7.50 4698.00
1973 2.00 0.00 5.50 143.00 516.50 717.00 976.00 997.00 538.00 354.00 97.50 8.50 4355.00
1974 17.50 0.00 97.00 181.50 500.50 860.50 1044.50 967.50 717.00 363.50 29.00 2.50 4781.00
1975 5.00 0.50 31.50 66.00 327.50 605.00 1091.00 879.00 652.00 318.00 66.50 5.00 4047.00
1976 0.00 11.00 8.00 174.50 569.50 664.50 1051.50 860.00 689.50 277.50 113.50 0.00 4419.50
1977 0.00 11.00 26.00 337.00 362.00 902.00 1000.50 942.50 646.50 368.50 66.00 15.00 4677.00
1978 0.00 17.00 166.50 200.00 379.00 699.00 1008.00 886.50 598.00 417.00 47.00 0.00 4418.00
1979 0.00 4.00 35.50 233.00 508.00 764.50 1050.50 1008.50 817.50 417.00 10.00 0.50 4849.00
1980 6.00 21.50 19.00 313.00 426.50 676.50 1013.50 890.00 656.00 306.50 113.50 11.00 4453.00
1981 0.00 16.50 67.50 305.50 426.00 702.00 1001.50 1049.50 714.00 223.00 97.50 30.00 4633.00
1982 1.50 10.50 53.50 149.00 394.00 717.50 927.50 1030.50 583.50 185.50 17.50 1.50 4072.00
1983 6.00 8.00 66.00 109.00 353.00 658.00 933.50 1004.50 639.00 329.00 84.00 1.50 4191.50
1984 0.00 0.00 4.50 125.50 489.50 616.00 976.00 948.00 568.00 196.00 24.50 0.00 3948.00
1985 0.00 0.00 12.50 306.50 575.00 768.50 1090.50 924.00 516.50 253.50 25.50 0.00 4472.50
1986 2.00 61.50 208.50 183.00 453.00 896.50 932.00 1058.50 485.50 275.00 39.00 1.50 4596.00
1987 0.00 3.50 70.00 415.50 591.50 815.50 937.50 914.00 730.00 446.50 55.00 18.50 4997.50
1988 0.00 10.00 56.00 314.50 525.50 919.00 1148.50 1015.50 619.00 564.50 73.50 0.00 5246.00
1989 0.00 4.00 100.00 335.00 499.00 730.50 1154.00 968.50 691.50 366.00 56.00 0.00 4904.50
1990 12.50 1.00 114.50 376.00 432.00 773.00 1094.00 1020.50 877.50 304.50 77.50 0.00 5083.00
1991 0.00 2.00 50.00 167.00 360.00 717.00 1055.50 1073.00 669.50 408.50 33.50 0.00 4536.00
1992 0.00 21.50 192.00 403.50 671.50 808.00 944.50 1055.50 670.00 425.00 18.50 0.00 5210.00
1993 0.00 1.50 111.00 157.50 607.50 609.50 760.00 876.00 634.50 304.00 5.50 7.50 4074.50
1994 0.00 5.50 115.00 303.00 646.00 859.00 1101.00 1111.00 794.00 273.50 28.00 9.00 5245.00
1995 4.50 57.00 93.50 187.50 371.50 628.00 969.50 1021.00 731.00 283.00 155.00 49.00 4550.50
1996 1.50 10.00 98.50 230.00 477.50 848.50 1076.00 1018.50 595.00 364.00 94.50 24.00 4838.00
1997 24.50 0.00 140.00 182.00 579.50 767.00 939.00 1019.00 725.50 307.50 48.50 0.00 4732.50
1998 3.00 9.00 80.00 174.00 455.00 573.00 1127.50 1053.00 0.00 z 309.50 64.50 27.50 3876.00
1999 4.00 11.00 135.00 150.50 392.50 705.00 1028.50 1030.50 604.50 414.50 206.50 10.50 4693.00
2000 10.50 22.50 56.50 345.00 0.00 z 818.00 1158.50 1113.50 645.50 330.00 0.50 0.00 z 4500.50
2001 0.00 1.00 104.50 231.00 0.00 z 797.50 0.00 z 1115.00 0.00 z 403.00 0.00 z 0.00 2652.00
2002 0.00 z 0.00 z 46.50 250.50 0.00 z 0.00 z 1186.00 1007.50 714.50 252.00 14.00 3.00 3474.00
2003 18.00 18.00 109.00 268.50 535.00 799.50 1224.00 1127.00 666.50 512.50 7.50 10.00 5295.50
2004 0.00 2.00 192.00 290.50 484.50 751.00 1028.50 923.50 604.50 311.00 45.00 0.00 z 4632.50
2005 0.00 0.00 18.00 145.50 469.50 635.50 1085.50 991.00 615.50 339.00 71.50 3.50 4374.50
2006 0.00 12.00 26.50 264.50 568.50 843.00 1164.50 673.50 i 559.50 255.50 81.50 11.50 3787.00
2007 0.00 17.50 160.68 a 251.00 566.50 811.00 1204.50 1073.50 668.00 272.00 101.50 0.00 5126.18
2008 0.00 0.00 19.50 107.00 383.00 696.00 1074.50 1002.00 661.50 339.50 84.50 9.00 4376.50
2009 0.00 0.50 81.50 179.00 509.50 663.50 1038.00 921.00 796.00 172.50 80.00 0.00 4441.50
2010 0.00 0.00 48.00 205.00 264.00 684.50 1038.50 984.00 710.00 420.00 97.50 0.00 4451.50
2011 0.00 9.33 a 27.50 90.50 288.00 659.00 1037.50 1067.50 768.00 351.50 21.50 7.00 4327.33
2012 2.00 0.00 199.50 331.50 509.50 805.00 1128.00 1107.00 763.50 343.50 132.50 16.00 5338.00
2013 0.00 c 0.00 57.72 b 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 57.72
Period of Record Statistics
MEAN 2.76 8.44 68.73 236.99 485.37 727.34 1025.08 980.87 655.43 330.14 60.71 7.27 4582.48
S.D. 5.83 12.75 53.87 90.11 101.85 95.70 79.10 75.18 85.62 89.45 40.08 12.85 364.45
SKEW 2.68 2.17 0.87 0.52 0.03 0.25 -0.30 -0.45 -0.16 -0.18 0.69 2.61 0.04
MAX 29.00 61.50 239.50 470.50 751.50 961.50 1224.00 1127.00 877.50 564.50 206.50 63.03 5586.57
MIN 0.00 0.00 0.00 66.00 259.00 478.50 760.00 771.00 407.00 123.00 0.50 0.00 3618.00
NO YRS 119 120 121 120 117 118 118 118 118 119 117 118 108