SUNDANCE, WYOMING

Monthly Total Growing Degree Days

(488705)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1915 0.00 z 0.00 z 0.00 z 0.00 z 284.50 420.50 626.50 706.00 432.50 179.50 10.50 4.00 2664.00
1916 0.00 a 18.00 97.50 92.50 159.00 465.52 a 956.00 757.00 411.00 115.50 37.00 0.00 3109.02
1917 0.00 0.00 0.00 53.00 201.00 467.50 949.00 512.02 a 376.00 142.50 109.50 8.00 2818.52
1918 0.00 z 0.00 z 0.00 z 20.00 0.00 z 0.00 z 649.00 744.50 348.00 280.50 33.00 4.50 2079.50
1919 0.00 0.00 32.50 85.50 365.00 768.50 944.00 803.50 604.50 59.42 a 17.00 1.50 3681.42
1920 3.50 0.00 a 4.13 a 12.50 213.38 a 474.11 b 808.00 782.00 354.00 g 208.00 f 7.50 1.50 2306.62
1921 0.00 13.00 39.50 117.50 265.00 717.50 847.00 801.00 394.50 264.50 35.50 3.50 3498.50
1922 0.00 0.00 9.50 h 62.00 270.50 501.50 f 664.95 a 845.94 e 613.50 298.50 8.00 0.00 2763.39
1923 0.00 b 0.00 1.00 89.50 310.50 588.50 874.50 661.50 478.50 140.00 26.00 16.61 c 3186.61
1924 0.00 b 7.00 0.00 52.00 181.72 b 468.62 a 747.50 749.00 441.50 274.72 b 38.00 8.50 2968.57
1925 0.00 4.15 a 54.77 a 159.31 a 381.09 b 547.00 851.98 a 811.17 a 531.50 34.10 a 7.24 a 4.65 a 3386.95
1926 0.00 a 0.50 6.41 b 194.00 400.33 b 579.31 a 822.53 a 797.00 376.00 0.00 z 0.00 z 0.00 z 3176.08
1927 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 730.00 463.50 270.50 8.50 0.00 b 1472.50
1928 3.00 0.00 36.50 71.50 454.00 382.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 947.50
1929 0.00 z 0.00 5.00 113.50 237.50 f 583.00 948.50 960.48 a 342.50 256.50 8.00 0.50 3217.98
1930 0.00 14.00 4.50 308.50 289.50 586.50 961.00 872.00 513.50 141.00 38.50 0.00 3729.00
1931 3.50 0.00 9.00 209.00 315.88 b 825.00 962.00 848.00 651.50 211.50 59.00 2.00 4096.38
1932 0.00 46.50 7.00 237.00 406.00 697.00 982.00 915.00 564.50 177.00 33.00 4.50 4069.50
1933 0.00 0.00 29.00 120.50 285.50 876.50 1070.00 810.50 609.50 298.50 26.00 6.00 4132.00
1934 0.00 27.50 28.00 201.50 714.00 698.50 1039.02 a 801.87 a 413.50 331.00 91.50 0.00 4346.38
1935 0.00 0.00 27.50 89.50 169.00 561.50 1007.00 852.00 549.00 232.00 0.00 0.00 3487.50
1936 0.00 0.00 0.00 148.50 568.00 802.24 a 1163.50 989.00 630.50 248.00 30.50 4.00 4584.24
1937 0.00 0.00 3.50 102.50 426.50 580.00 887.50 0.00 z 642.50 259.00 40.50 0.00 2942.00
1938 0.00 0.00 35.00 184.50 301.00 690.00 889.00 937.50 699.00 401.00 11.00 2.07 a 4150.07
1939 0.00 0.00 0.00 334.00 732.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1066.00
1940 0.00 z 0.00 z 0.00 z 42.00 v 405.58 a 654.00 1004.00 887.50 702.00 350.00 4.50 2.00 4009.58
1941 0.50 1.50 39.50 94.50 483.50 571.00 859.73 a 804.00 401.00 133.50 31.50 17.50 3437.73
1942 0.00 0.00 3.00 190.50 235.50 465.50 849.50 803.50 437.50 285.00 37.00 0.00 3307.00
1943 0.00 6.50 40.00 204.00 264.00 539.00 892.50 976.50 520.00 344.50 7.00 0.50 3794.50
1944 0.00 0.00 0.00 69.50 445.50 502.50 763.00 743.50 471.50 275.00 30.00 0.00 3300.50
1945 0.00 0.00 21.00 72.22 c 0.00 z 405.50 823.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1321.72
1946 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 628.00 933.00 749.00 491.50 87.00 10.00 14.00 2912.50
1947 0.00 a 0.50 5.68 a 108.50 327.00 478.50 928.50 958.50 572.50 380.50 14.50 0.00 3774.68
1948 0.00 1.00 13.50 223.50 424.00 593.00 845.50 905.72 a 456.50 l 286.20 c 7.50 j 0.00 a 3292.41
1949 0.00 b 0.00 7.00 245.56 c 464.00 633.89 c 258.50 w 548.00 l 511.67 c 186.57 d 121.11 c 0.00 d 2169.80
1950 1.60 b 6.22 a 19.00 71.54 d 260.83 b 566.25 b 755.48 d 756.83 b 497.59 a 338.62 e 21.11 c 1.50 3296.56
1951 0.00 12.50 8.50 87.00 363.00 448.50 865.42 a 817.00 370.00 202.53 a 7.50 1.55 a 3183.50
1952 0.00 0.00 3.00 237.50 402.00 748.00 855.00 865.50 691.00 266.50 30.50 0.00 a 4099.00
1953 3.50 0.00 37.00 79.66 a 288.00 703.50 932.00 901.50 621.00 387.50 98.00 0.00 4051.66
1954 0.00 33.00 18.00 170.00 383.50 640.00 1068.50 911.50 608.50 251.00 71.00 2.00 4157.00
1955 0.00 0.00 3.00 190.50 416.36 b 535.71 b 734.50 g 730.00 h 458.00 f 256.00 i 8.57 b 8.50 1162.65
1956 2.58 a 1.00 76.00 67.50 413.50 832.50 881.95 a 811.17 a 587.50 362.00 11.50 4.50 4051.70
1957 0.00 b 8.00 17.05 a 90.50 368.50 565.50 971.00 916.05 a 511.50 224.50 0.00 a 0.00 3672.60
1958 0.00 27.00 9.50 102.00 604.00 564.50 742.50 955.50 682.00 316.00 32.00 0.50 4035.50
1959 2.00 0.00 15.50 127.50 299.00 773.00 915.50 993.00 486.50 150.50 21.00 1.55 a 3785.05
1960 1.00 0.00 g 81.00 0.00 z 91.00 z 640.20 e 721.50 h 0.00 z 553.80 e 62.50 t 33.75 b 0.00 e 1309.75
1961 8.61 d 0.00 e 39.50 91.00 387.00 810.00 878.50 960.00 363.00 230.43 a 17.68 b 0.00 3785.72
1962 0.50 10.50 27.50 224.00 395.00 626.50 769.00 825.00 491.00 247.00 k 38.50 8.50 3416.00
1963 0.00 13.50 79.00 123.00 401.00 688.00 908.00 895.00 696.50 471.50 36.50 0.50 4312.50
1964 0.00 0.00 6.00 128.00 415.50 590.00 979.50 751.50 452.50 273.50 79.50 0.00 3676.00
1965 0.00 0.50 1.50 139.50 307.00 591.50 838.50 770.00 200.00 342.50 52.00 10.00 3253.00
1966 0.00 0.00 81.00 56.00 462.00 631.50 1017.32 a 737.50 596.00 198.50 17.00 0.00 3796.82
1967 2.00 0.00 30.50 f 170.69 a 288.00 527.50 846.50 826.50 531.50 262.00 26.38 a 0.00 a 3481.07
1968 1.55 a 0.00 a 68.72 a 94.82 b 262.47 a 608.50 869.60 b 769.83 d 491.50 277.45 a 8.40 e 1.66 c 3454.50
1969 1.15 d 0.00 e 10.50 240.50 460.50 469.00 875.20 c 1015.25 c 681.00 93.00 47.00 3.00 3896.09
1970 0.00 3.00 0.00 49.50 407.50 696.50 914.50 951.00 481.50 158.50 9.00 1.50 3672.50
1971 0.00 0.00 11.50 137.50 355.50 678.50 764.00 962.50 450.00 169.50 24.50 0.00 3553.50
1972 0.00 2.50 102.00 118.50 359.50 689.00 719.50 821.00 474.00 193.50 3.00 0.00 3482.50
1973 0.00 0.00 b 12.00 74.50 323.00 636.50 847.00 900.50 462.00 299.50 34.00 14.50 3603.50
1974 6.00 2.50 53.00 178.50 316.00 692.00 975.00 675.50 423.50 282.50 23.50 2.50 3630.50
1975 0.00 0.00 5.00 79.00 305.87 a 562.00 936.00 824.50 462.00 261.50 84.50 10.50 3530.87
1976 0.00 0.00 19.50 159.50 400.00 633.50 897.50 834.50 596.50 188.00 34.00 0.50 3763.50
1977 0.00 1.50 11.00 228.50 475.00 746.50 885.50 704.00 561.72 a 260.50 53.50 0.00 3927.72
1978 0.00 0.00 69.00 123.50 341.50 604.00 832.00 800.00 633.50 213.50 53.50 0.00 3670.50
1979 0.00 0.00 6.00 141.50 331.00 619.00 870.50 794.50 670.50 274.00 9.50 3.00 3719.50
1980 1.00 7.00 14.00 213.00 419.00 719.00 993.00 760.50 547.00 251.00 77.50 23.00 4025.00
1981 25.00 9.50 26.00 270.00 361.50 634.50 935.00 823.50 650.00 207.50 99.50 11.00 4053.00
1982 0.00 15.00 25.50 125.50 296.50 520.50 881.50 902.50 494.50 156.50 7.50 0.00 3425.50
1983 0.00 3.00 48.00 84.50 280.00 617.00 989.50 1057.50 552.00 248.00 62.50 0.00 3942.00
1984 3.50 0.00 12.50 97.50 379.50 610.00 926.00 955.50 440.00 192.50 38.00 0.00 3655.00
1985 0.00 0.00 25.50 274.50 535.50 596.00 961.00 805.00 477.50 172.50 21.50 0.00 3869.00
1986 1.00 13.50 128.50 130.50 378.50 787.00 854.00 848.00 373.00 240.50 9.00 0.00 3763.50
1987 3.50 6.00 38.00 302.50 549.50 727.00 922.00 726.50 533.50 218.50 87.00 20.50 4134.50
1988 0.00 1.00 50.63 a 221.50 496.00 943.50 1009.00 925.50 533.50 274.50 30.50 0.00 4485.63
1989 0.00 0.00 79.50 174.00 394.50 601.00 996.00 889.00 548.00 254.00 44.00 0.00 3980.00
1990 0.00 0.00 25.50 177.50 326.50 710.00 872.50 896.50 709.00 218.00 93.50 18.50 4047.50
1991 0.00 2.50 42.00 151.50 433.50 731.00 922.50 950.50 547.50 273.00 10.00 0.00 4064.00
1992 3.00 27.50 81.50 214.00 486.50 619.00 670.00 729.50 587.50 293.00 7.00 0.00 3718.50
1993 0.00 0.00 73.00 112.50 451.00 507.00 662.50 702.00 399.50 202.50 3.50 5.50 3119.00
1994 0.00 5.00 62.50 189.00 536.50 751.50 856.50 929.00 618.00 213.50 40.00 14.00 4215.50
1995 4.50 44.00 96.50 60.50 263.00 604.00 860.50 1001.50 553.00 172.50 52.50 13.00 3725.50
1996 0.00 14.00 21.50 165.00 276.50 784.50 863.00 907.50 524.50 256.50 9.00 4.00 3826.00
1997 5.00 2.00 63.50 110.50 366.50 743.50 871.00 881.50 641.00 312.50 19.50 0.00 4016.50
1998 1.00 1.00 48.00 0.00 z 0.00 z 0.00 z 0.00 z 872.50 714.00 168.50 65.00 18.82 c 1888.82
1999 0.00 a 11.50 76.00 123.75 b 311.00 596.00 905.72 a 898.48 a 394.00 284.54 c 179.50 7.00 3787.49
2000 0.00 14.50 84.98 b 176.50 455.50 694.50 1007.00 1033.50 583.00 276.50 0.00 0.00 z 4325.98
2001 0.00 0.00 2.58 a 166.55 a 417.00 0.00 z 0.00 z 962.50 608.57 b 141.00 56.90 a 0.00 a 2355.10
2002 0.00 0.50 0.00 105.00 261.50 768.00 1110.50 852.50 600.00 103.50 37.00 14.50 3853.00
2003 8.00 2.50 41.50 253.50 417.50 571.00 1061.50 1068.50 453.00 388.50 8.00 0.50 4274.00
2004 0.00 10.00 105.50 225.50 434.50 566.25 b 914.00 726.00 631.00 275.00 73.00 2.07 a 3962.82
2005 0.00 z 13.00 40.00 199.50 375.50 717.50 1077.00 890.50 679.00 334.00 81.00 0.00 c 4407.00
2006 7.00 i 14.00 53.00 0.00 z 500.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 567.00
Period of Record Statistics
MEAN 1.15 5.57 33.02 145.56 375.74 629.27 894.96 848.31 528.40 241.22 36.40 3.89 3762.70
S.D. 3.18 9.57 31.16 69.79 106.56 111.94 105.06 100.39 105.23 81.17 32.63 5.78 363.13
SKEW 5.48 2.39 0.95 0.49 0.70 0.19 -0.28 -0.23 -0.26 -0.03 1.59 1.63 -0.28
MAX 25.00 46.50 128.50 334.00 732.00 943.50 1163.50 1068.50 714.00 471.50 179.50 23.00 4584.24
MIN 0.00 0.00 0.00 12.50 159.00 382.50 626.50 512.02 200.00 34.10 0.00 0.00 2818.52
NO YRS 84 86 85 85 85 85 83 84 85 83 86 86 68