WILLIAMS FORK DAM, COLORADO

Monthly Total Heating Degree Days

(059096)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1982 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 426.00 217.00 176.50 462.50 921.00 1268.50 1544.00 5015.50
1983 1587.00 1345.50 1131.00 1022.00 704.00 401.00 170.50 90.00 375.00 720.00 1094.50 1495.00 10135.50
1984 1955.50 1663.00 1347.50 1067.50 559.50 370.00 130.00 173.50 429.00 908.00 1136.50 1453.00 11193.00
1985 1656.00 1553.00 1214.00 775.50 544.50 303.00 135.50 230.00 531.00 786.50 1172.00 1566.50 10467.50
1986 1219.00 f 1156.00 1005.00 785.50 622.00 252.00 192.50 195.00 489.50 795.00 1103.00 1490.50 8086.00
1987 1563.00 1186.50 1198.00 814.50 560.50 276.00 173.71 b 254.50 475.00 724.50 1144.14 a 1459.14 b 9829.48
1988 1754.00 1496.50 1400.50 867.50 607.00 209.00 137.43 a 183.00 484.50 677.00 1109.00 1705.50 10630.93
1989 1826.00 1490.50 1137.50 777.50 572.00 381.00 118.50 250.00 431.50 779.50 1093.00 1571.50 10428.50
1990 1538.50 1269.50 1079.00 762.50 674.50 272.50 188.00 244.00 311.50 831.50 1096.00 1735.00 10002.50
1991 1729.50 1433.00 1189.50 915.50 597.00 311.00 198.00 212.50 428.50 771.50 1185.00 1620.00 10591.00
1992 1806.00 1395.50 1058.50 727.00 501.00 355.50 0.00 z 261.50 453.50 710.50 1368.00 1612.00 10249.00
1993 1602.00 1401.00 1233.50 889.50 548.50 333.50 218.00 218.50 466.00 771.00 1280.00 1525.50 10487.00
1994 1543.50 1391.00 1070.00 787.50 476.50 174.50 117.00 109.00 384.50 748.00 1212.00 1553.50 9567.00
1995 1639.50 1144.50 0.00 z 899.50 687.00 365.00 257.50 152.50 446.50 885.50 1040.00 1462.50 8980.00
1996 1662.00 1476.50 1309.00 922.00 553.50 348.50 135.00 159.00 446.00 789.00 1039.00 1337.50 10177.00
1997 1566.50 1417.50 1137.50 916.00 571.00 241.50 140.50 178.00 307.50 747.50 1126.00 1496.00 9845.50
1998 1416.50 1215.00 1174.50 845.00 514.50 374.00 48.00 128.00 251.50 703.00 980.50 1485.50 9136.00
1999 1363.00 1214.00 989.00 887.00 617.50 309.00 72.50 128.00 444.50 739.00 1055.50 1460.00 9279.00
2000 1362.00 1243.00 1105.00 725.50 495.00 286.50 102.50 118.50 383.50 712.00 1422.50 1607.50 9563.50
2001 1779.50 1258.50 1066.00 720.50 513.00 257.00 65.50 139.50 355.50 723.00 1048.00 1555.50 9481.50
2002 1615.00 1563.50 1320.00 668.50 562.50 182.50 39.00 138.50 372.50 848.50 1313.50 1604.00 10228.00
2003 1390.50 1327.00 1109.00 791.50 534.50 336.00 50.00 95.00 449.50 639.50 1131.00 1390.00 9243.50
2004 1582.50 1412.50 976.50 741.00 540.50 315.00 192.50 245.50 442.00 701.00 1085.00 1742.50 9976.50
2005 1558.00 1455.50 1281.50 806.00 564.50 351.00 108.50 221.50 377.50 704.50 1112.00 1613.00 10153.50
2006 1569.00 1568.50 1191.00 737.50 516.00 236.50 75.50 173.00 528.50 836.50 1093.00 1562.50 10087.50
2007 1939.00 1255.50 1144.50 792.00 559.00 292.00 42.00 92.00 350.50 748.00 1085.00 1576.50 9876.00
2008 1793.50 1456.50 1430.50 996.50 630.00 364.50 130.50 191.00 430.50 772.50 1035.00 1470.00 10701.00
2009 1440.50 1264.00 1104.50 897.50 496.50 372.50 187.50 246.50 400.00 880.00 1066.50 1741.50 10097.50
2010 1711.00 1511.50 1255.00 815.00 651.00 273.50 117.50 155.50 361.00 687.00 1162.50 1275.50 9976.00
2011 1635.50 1467.00 1121.50 859.00 671.50 317.50 106.50 118.50 390.50 765.50 1181.50 1551.50 10186.00
2012 1448.50 1293.50 964.50 668.00 502.50 160.00 57.00 144.00 358.50 733.00 999.50 1578.00 8907.00
2013 2023.00 1531.00 1283.00 56.00 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 4837.00
Period of Record Statistics
MEAN 1635.20 1382.45 1167.55 829.33 571.57 304.76 130.80 174.92 413.48 766.42 1136.70 1543.25 10009.16
S.D. 172.26 137.05 122.36 98.81 62.22 67.94 59.18 52.87 63.92 69.82 103.83 108.36 527.14
SKEW 0.40 -0.04 0.32 0.52 0.56 -0.44 0.16 0.08 -0.36 0.62 1.08 -0.17 -0.11
MAX 2023.00 1663.00 1430.50 1067.50 704.00 426.00 257.50 261.50 531.00 921.00 1422.50 1742.50 11193.00
MIN 1362.00 1144.50 964.50 668.00 476.50 160.00 39.00 90.00 251.50 639.50 980.50 1275.50 8907.00
NO YRS 30 31 30 30 30 31 30 31 31 31 31 31 27