POWDERHORN, COLORADO

Monthly Total Heating Degree Days

(056651)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197101
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
1964 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 119.00 u 435.50 726.50 1132.50 1560.00 3854.50
1965 1522.00 1371.00 1386.00 867.50 669.60 a 426.00 173.50 244.50 523.00 831.00 1112.07 a 1797.00 10923.17
1966 2007.50 1695.00 1311.00 934.00 695.00 541.50 339.97 a 458.50 579.50 519.50 j 1023.00 1539.50 11124.47
1967 1587.50 1306.50 1013.00 860.00 702.50 432.50 127.00 174.50 383.79 a 679.50 1018.00 1512.91 c 9797.70
1968 1792.50 1369.00 1259.00 998.50 646.50 337.00 188.50 300.50 533.50 734.00 1224.00 1607.50 10990.50
1969 1464.50 1558.50 1464.00 783.50 483.50 428.00 177.00 85.50 362.00 940.50 1183.50 1383.00 10313.50
1970 1604.00 1225.00 1301.00 1056.00 645.00 382.50 179.00 153.50 480.50 847.00 1006.00 1469.00 10348.50
1971 1414.50 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 1414.50
Period of Record Statistics
MEAN 1627.50 1420.83 1289.00 916.58 640.35 424.58 197.49 236.17 471.11 793.08 1099.87 1552.70 10474.67
S.D. 206.90 173.62 153.45 99.77 80.46 68.10 73.06 131.89 80.85 96.85 86.64 129.29 491.79
SKEW 0.90 0.58 -0.90 0.13 -1.44 0.59 1.41 0.67 -0.12 0.35 0.19 0.77 -0.22
MAX 2007.50 1695.00 1464.00 1056.00 702.50 541.50 339.97 458.50 579.50 940.50 1224.00 1797.00 10990.50
MIN 1414.50 1225.00 1013.00 783.50 483.50 337.00 127.00 85.50 362.00 679.50 1006.00 1383.00 9797.70
NO YRS 7 6 6 6 6 6 6 6 7 6 7 7 5