DUCHESNE AP, UTAH

Monthly Total Heating Degree Days

(422252)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198010
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
1974 0.00 z 0.00 z 429.50 k 645.50 230.50 60.50 0.00 18.60 a 170.17 a 473.00 856.00 1283.50 3737.77
1975 1392.00 1149.56 a 951.00 781.50 459.00 196.00 3.50 19.00 162.32 b 570.83 b 998.50 1329.79 b 8013.00
1976 1463.20 a 1114.95 a 1058.00 596.50 279.50 105.50 6.50 6.50 167.50 594.50 897.00 1260.84 b 7550.49
1977 1318.00 965.00 1000.50 485.50 410.00 4.50 12.40 a 19.63 a 146.50 480.50 896.90 a 1082.50 6821.93
1978 1389.50 1206.00 843.41 b 552.00 376.50 73.00 1.00 34.00 204.11 b 422.24 b 1076.25 b 1651.78 a 7829.80
1979 1806.50 1390.48 c 1032.00 592.50 312.87 d 120.00 d 1.19 e 42.07 c 46.50 f 406.00 f 1157.40 e 1316.35 d 7771.37
1980 1308.64 c 1246.48 a 965.02 d 602.59 a 410.46 d 71.50 g 0.00 f 41.50 f 156.72 a 412.50 l 0.00 z 0.00 z 4689.92
Period of Record Statistics
MEAN 1446.31 1178.74 974.99 608.01 354.12 93.25 4.10 23.30 167.89 508.21 980.34 1320.80 7553.80
S.D. 185.27 141.97 75.87 91.34 82.01 64.47 4.69 12.67 19.65 72.05 118.53 185.16 523.67
SKEW 1.44 -0.02 -0.76 0.77 -0.28 0.30 0.98 0.31 1.05 0.14 0.44 0.78 -0.73
MAX 1806.50 1390.48 1058.00 781.50 459.00 196.00 12.40 42.07 204.11 594.50 1157.40 1651.78 8013.00
MIN 1308.64 965.00 843.41 485.50 230.50 4.50 0.00 6.50 146.50 422.24 856.00 1082.50 6821.93
NO YRS 6 6 6 7 7 6 6 6 6 5 6 6 4