BILLY CREEK, WYOMING

Monthly Total Growing Degree Days

(480740)

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
1962 0.00 z 0.00 z 23.00 n 244.00 402.50 612.00 759.50 785.50 476.50 306.00 81.50 22.73 a 3690.23
1963 1.50 37.50 85.50 114.00 418.00 637.00 917.50 896.00 698.50 438.00 50.00 18.50 4312.00
1964 4.00 0.00 20.00 110.00 396.50 593.50 993.00 762.08 a 445.86 a 280.50 52.50 13.00 3670.95
1965 5.68 a 34.50 10.50 184.00 322.50 611.00 865.00 772.50 247.00 369.50 76.50 26.50 3525.18
1966 9.50 0.00 117.00 91.50 513.50 627.50 1043.00 801.50 621.00 239.00 61.50 6.00 4131.00
1967 7.75 a 11.00 66.50 118.50 331.50 511.00 828.50 835.50 584.50 268.50 34.00 8.50 3605.75
1968 18.00 8.00 72.50 105.00 258.00 559.00 825.00 702.00 467.50 253.00 36.00 10.00 3314.00
1969 3.00 1.50 25.00 242.50 443.50 512.00 903.00 986.32 a 645.00 67.50 53.50 6.50 3889.32
1970 2.50 13.50 3.00 51.00 403.00 655.00 912.00 974.00 441.00 163.50 15.50 8.50 3642.50
1971 6.50 8.00 36.00 133.50 348.00 673.50 795.50 983.50 453.00 205.00 37.50 0.50 3680.50
1972 2.00 29.50 132.00 117.00 366.50 724.00 759.00 829.00 458.00 208.50 7.50 9.50 3642.50
1973 31.00 0.00 10.00 73.00 339.50 649.50 839.50 895.00 436.50 320.00 67.50 15.50 3677.00
1974 34.62 a 7.50 57.00 166.00 301.00 734.50 983.00 693.00 452.50 259.50 23.50 5.00 3717.12
1975 0.00 0.50 9.00 64.00 289.00 510.50 923.50 802.00 475.50 281.00 107.00 52.00 3514.00
1976 3.00 31.00 31.50 147.00 418.50 592.00 959.00 829.50 568.00 180.50 51.50 15.50 3827.00
1977 0.00 7.50 20.00 270.00 450.50 736.50 904.00 702.00 532.50 248.00 55.00 7.50 3933.50
1978 0.00 0.00 97.00 143.00 319.00 619.00 821.50 781.50 593.50 244.50 68.50 0.00 3687.50
1979 0.00 4.50 20.00 122.50 330.50 660.50 873.00 800.00 664.00 294.50 15.00 45.50 3830.00
1980 11.00 15.50 4.50 243.50 408.50 705.50 937.50 759.00 553.00 262.00 93.00 72.50 4065.50
1981 14.00 26.00 26.50 250.50 323.00 579.00 936.00 879.00 650.00 201.50 133.00 35.00 4053.50
1982 4.00 64.81 a 33.50 145.50 341.50 594.50 935.00 1004.50 494.00 184.50 15.00 3.50 3820.31
1983 21.00 21.50 69.50 97.50 260.00 578.00 918.00 1033.50 559.00 251.00 80.50 0.00 3889.50
1984 5.00 0.00 26.00 85.00 342.50 552.00 883.00 924.50 430.50 194.00 58.00 17.50 3518.00
1985 0.00 1.00 34.50 251.00 486.00 587.00 966.00 783.00 413.00 184.50 28.50 0.00 3734.50
1986 14.00 30.00 137.00 175.50 332.50 812.00 812.00 857.00 409.00 214.50 35.00 0.00 3828.50
1987 12.50 11.00 62.50 283.50 528.50 713.00 827.50 689.00 506.50 231.50 85.50 24.00 3975.00
1988 16.50 17.50 62.00 215.00 475.50 947.50 976.50 866.00 475.50 271.00 59.00 15.50 4397.50
1989 16.50 2.50 86.00 204.50 385.50 579.50 969.00 802.00 486.00 215.00 45.00 25.50 3817.00
1990 4.50 3.00 46.00 184.00 326.50 617.00 863.50 854.00 665.50 205.00 109.50 26.00 3904.50
1991 0.00 26.50 46.50 150.50 371.00 668.00 873.00 911.50 511.00 253.50 27.00 4.00 3842.50
1992 4.50 34.00 109.00 225.00 467.00 625.00 649.00 699.50 475.00 266.00 13.00 0.00 3567.00
1993 1.00 0.00 84.50 115.50 415.00 495.00 624.00 716.00 394.00 206.00 12.50 13.50 3077.00
1994 13.50 16.00 87.50 221.50 545.00 719.00 837.00 929.00 602.00 155.00 26.00 27.00 4178.50
1995 14.50 56.50 96.00 84.00 216.50 552.50 803.50 909.50 507.50 161.00 65.50 16.00 3483.00
1996 11.00 44.50 32.00 172.00 261.00 700.00 895.50 847.00 436.50 255.00 1.00 10.50 3666.00
1997 26.00 9.00 89.50 101.00 354.50 680.00 813.00 805.00 580.00 262.50 36.50 2.00 3759.00
1998 4.00 0.50 47.00 101.00 429.00 448.00 973.00 894.50 740.50 190.50 62.00 16.50 3906.50
1999 5.17 a 19.00 97.50 116.50 297.50 584.50 918.00 902.50 416.00 253.50 223.50 12.00 3845.67
2000 13.00 35.50 68.50 177.93 a 424.00 595.00 978.00 971.50 534.00 160.00 2.50 0.00 3959.93
2001 0.00 0.00 8.00 140.50 419.00 653.50 999.50 947.00 591.00 165.50 81.50 0.00 4005.50
2002 5.50 4.50 3.50 105.00 255.50 671.50 1025.00 615.00 471.50 84.00 46.00 2.50 3289.50
2003 4.00 4.50 75.50 228.50 349.50 519.00 1037.00 1019.50 468.50 384.00 21.00 8.50 4119.50
2004 0.00 30.00 110.50 195.00 395.00 555.00 877.50 754.00 518.00 231.00 74.50 11.00 3751.50
2005 38.50 18.50 56.50 160.00 325.00 638.00 953.50 780.50 553.00 266.00 69.50 25.50 3884.50
2006 26.50 6.00 53.50 238.50 423.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 748.00
Period of Record Statistics
MEAN 9.44 15.73 56.05 159.21 373.54 626.98 890.57 840.55 515.93 234.89 54.50 14.54 3789.28
S.D. 9.89 16.23 37.07 61.90 75.99 89.84 91.96 101.11 94.64 69.08 40.06 15.01 261.08
SKEW 1.29 1.11 0.35 0.28 0.21 0.95 -0.77 0.02 0.11 0.35 1.80 1.82 -0.19
MAX 38.50 64.81 137.00 283.50 545.00 947.50 1043.00 1033.50 740.50 438.00 223.50 72.50 4397.50
MIN 0.00 0.00 3.00 51.00 216.50 448.00 624.00 615.00 247.00 67.50 1.00 0.00 3077.00
NO YRS 44 44 44 45 45 44 44 44 44 44 44 44 43