BULLFROG BASIN, UTAH

Monthly Total Heating Degree Days

(421020)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1967 0.00 z 0.00 z 330.15 a 289.50 93.50 0.00 0.00 0.00 0.00 104.50 455.00 1093.00 2365.65
1968 1143.00 546.00 422.00 294.00 37.00 6.00 0.00 0.00 11.00 158.00 562.50 1002.00 4181.50
1969 779.50 653.50 603.00 187.50 31.50 0.00 0.00 0.00 3.00 265.50 556.50 761.50 3841.50
1970 848.50 536.00 522.00 310.86 a 29.00 0.00 0.00 0.00 16.00 282.50 558.00 850.00 3952.86
1971 925.50 697.50 519.52 b 189.44 c 43.18 c 0.00 0.00 0.00 25.00 266.50 632.50 936.00 4235.14
1972 868.50 594.00 262.50 192.93 a 19.50 0.00 0.00 0.00 0.50 211.00 651.50 973.50 3773.93
1973 1220.00 722.50 571.50 267.00 45.00 2.00 0.00 0.00 21.50 173.00 508.00 862.50 4393.00
1974 1110.50 841.50 358.05 a 275.50 16.50 0.00 0.00 0.00 12.50 153.50 576.21 a 913.97 b 4258.22
1975 1051.50 744.33 d 598.00 437.00 132.27 a 10.50 0.00 a 0.00 9.00 260.50 606.50 867.00 4716.60
1976 956.50 565.50 624.77 e 227.07 a 31.00 0.00 b 0.00 0.00 9.00 208.00 545.00 937.00 4103.84
1977 1015.00 630.50 606.00 168.50 68.50 0.00 0.00 0.00 1.50 95.50 484.00 695.00 3764.50
1978 808.87 d 628.50 351.50 207.00 103.00 0.00 0.00 0.00 30.00 95.00 512.50 1104.50 3840.87
1979 1162.50 927.50 556.50 224.50 100.15 e 13.50 0.00 0.00 0.00 132.61 d 702.00 893.00 4712.26
1980 799.00 607.50 578.67 a 297.32 b 86.59 b 0.54 b 0.00 0.00 4.29 b 262.00 518.28 a 671.00 3825.17
1981 766.50 622.50 511.50 110.36 b 55.00 1.50 0.00 0.00 4.50 223.50 487.50 799.50 3582.36
1982 904.00 748.00 487.50 250.50 36.00 0.00 0.00 0.00 14.50 288.50 580.00 834.50 4143.50
1983 872.00 579.00 472.50 370.50 122.00 2.00 0.00 0.00 10.50 125.00 498.00 821.50 3873.00
1984 962.00 768.50 527.50 321.00 29.50 5.50 0.00 0.00 12.50 299.00 510.50 823.50 4259.50
1985 862.50 760.00 515.50 168.50 31.00 0.00 0.00 0.00 17.50 168.50 523.50 799.00 3846.00
1986 751.50 533.00 313.50 227.00 79.50 0.00 a 0.00 0.00 49.50 k 192.50 j 321.50 k 803.00 2707.50
1987 968.00 658.00 629.50 219.50 14.50 0.00 0.00 b 0.00 0.00 108.50 559.00 910.50 4067.50
1988 978.00 645.00 509.50 195.50 65.50 0.00 0.00 0.00 17.14 b 34.00 483.00 872.00 3799.64
1989 1054.00 752.50 316.50 38.50 j 17.00 l 0.00 0.00 0.00 7.00 162.00 501.50 845.50 3639.00
1990 581.50 j 606.00 356.50 85.50 i 33.67 b 0.00 z 0.00 z 0.00 z 0.00 z 116.77 a 542.07 a 1083.50 2738.51
1991 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 z 0.00 z 0.00 z 0.00
1992 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 z 0.00 z 0.00 z 0.00
1993 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 z 0.00 z 0.00 z 0.00
1994 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 z 0.00 z 0.00 z 0.00
1995 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 z 0.00 z 0.00 z 0.00
1996 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 z 0.00 z 0.00 z 0.00
1997 0.00 z 0.00 z 412.00 309.50 21.00 0.00 0.00 0.00 0.00 230.50 536.50 853.00 2362.50
1998 771.50 656.50 500.50 306.00 33.00 2.50 0.00 0.00 4.00 209.50 532.50 921.00 3937.00
1999 769.50 607.19 a 385.00 354.50 97.50 20.00 0.00 b 0.00 16.50 159.65 a 483.10 a 859.73 a 3752.67
2000 762.17 b 599.50 527.00 b 113.00 22.00 0.00 0.00 0.00 16.00 187.50 720.00 a 806.00 3753.17
2001 902.10 a 655.50 431.50 225.00 57.00 5.50 0.00 v 0.00 a 2.00 109.50 461.50 955.00 3804.60
2002 915.50 764.50 569.50 111.00 46.00 0.00 0.00 0.00 3.50 211.50 591.50 851.50 4064.50
2003 734.50 668.50 473.00 0.00 z 78.00 0.00 0.00 0.00 z 4.50 71.50 592.50 875.50 3498.00
2004 972.50 787.00 308.50 214.50 29.50 0.00 a 0.00 0.00 29.50 197.50 610.50 884.50 4034.00
2005 723.00 627.00 473.50 287.00 72.50 10.00 0.00 0.00 z 1.00 159.50 535.00 907.50 3796.00
2006 872.00 679.00 544.00 186.50 15.00 0.00 0.00 0.00 57.00 243.00 528.50 904.50 4029.50
2007 995.50 622.50 436.58 a 191.00 75.00 6.50 0.00 0.00 13.50 223.00 516.00 904.50 3984.08
2008 975.00 0.00 z 518.14 c 327.50 112.50 4.50 0.00 0.00 0.00 201.00 499.50 0.00 z 2638.14
2009 874.50 0.00 z 0.00 z 285.50 4.59 d 0.00 0.00 0.00 2.00 247.00 532.00 1014.00 2959.59
2010 964.50 720.50 526.50 265.50 141.00 2.00 0.00 0.00 0.00 140.00 g 599.00 747.50 3966.50
2011 1003.76 b 773.36 c 479.00 292.24 a 139.50 0.00 e 0.00 0.00 c 2.59 a 208.00 562.24 a 941.37 a 4402.05
2012 847.33 a 725.50 465.50 172.00 9.50 0.00 0.00 d 0.00 3.62 a 152.86 b 499.00 861.00 3736.32
2013 1085.00 759.00 442.78 a 8.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 40.00 z 2286.78
Period of Record Statistics
MEAN 920.41 676.02 475.93 245.18 57.87 2.37 0.00 0.00 10.07 184.35 547.51 883.05 4029.80
S.D. 127.42 89.15 96.33 73.96 38.80 4.45 0.00 0.00 11.52 65.64 60.09 95.65 281.30
SKEW 0.40 0.56 -0.44 0.22 0.66 2.33 0.00 0.00 2.03 -0.20 1.02 0.32 0.88
MAX 1220.00 927.50 629.50 437.00 141.00 20.00 0.00 0.00 57.00 299.00 720.00 1104.50 4716.60
MIN 723.00 533.00 262.50 110.36 4.59 0.00 0.00 0.00 0.00 34.00 455.00 671.00 3582.36
NO YRS 38 37 40 37 39 39 38 37 38 38 39 39 29