RIDGWAY, COLORADO

Monthly Total Heating Degree Days

(057020)

Base Temperature = 65 F

File last updated on Jul 24, 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
1982 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 275.50 746.00 989.50 1229.00 3240.00
1983 1219.50 1007.50 941.00 826.00 566.50 275.50 52.18 a 39.50 220.50 220.50 r 564.50 p 1324.65 e 6472.84
1984 1627.00 1348.50 1112.50 839.00 386.50 283.50 65.50 77.00 288.00 828.50 1006.07 b 1216.50 9078.57
1985 1354.00 1334.00 973.50 680.00 508.50 271.55 a 116.00 173.00 432.86 b 713.50 997.00 1299.50 8853.41
1986 1220.37 a 937.00 893.50 728.89 c 565.00 228.50 186.00 149.50 331.00 f 790.50 1040.50 1484.50 8224.26
1987 1479.50 1120.50 1076.65 e 696.50 508.50 253.50 175.00 188.50 435.50 583.00 1009.00 1283.63 d 8809.78
1988 1537.50 1240.00 1056.50 733.50 575.50 184.50 98.50 118.50 435.50 656.00 1039.00 1404.00 9079.00
1989 1661.00 1191.50 924.00 650.00 510.50 305.00 79.00 155.00 387.00 742.00 1002.93 a 1415.50 9023.43
1990 1377.00 1078.50 939.00 706.50 535.50 208.50 152.00 184.00 264.50 724.50 938.50 1524.00 8632.50
1991 1556.00 1130.50 1066.50 766.00 491.50 233.00 90.50 117.50 325.50 638.00 1068.00 1424.00 8907.00
1992 1494.00 1111.00 930.00 565.50 393.00 246.50 153.00 162.50 305.50 659.50 1214.50 1457.50 8692.50
1993 1179.50 996.00 945.50 763.00 449.00 209.50 105.50 117.50 337.00 674.50 1142.00 1276.00 8195.00
1994 1296.50 1113.50 884.50 653.00 395.50 122.00 30.50 55.00 286.00 667.50 1032.50 1216.50 7753.00
1995 1302.00 829.50 905.50 803.50 593.50 312.50 0.00 z 45.50 339.50 714.50 878.00 1089.00 7813.00
1996 1307.50 1014.00 936.50 733.00 278.50 138.50 37.00 j 64.50 342.00 662.50 910.00 1245.50 7632.50
1997 1299.50 1136.00 908.00 782.00 426.50 165.00 89.50 101.50 247.00 646.50 981.50 1368.00 8151.00
1998 1155.00 982.00 999.00 775.50 454.00 271.00 27.00 69.50 197.00 630.50 875.00 1312.50 7748.00
1999 1152.50 934.00 759.00 776.50 517.00 264.00 71.00 115.00 376.50 651.00 861.50 1376.00 7854.00
2000 1175.00 908.50 913.00 574.50 385.00 165.00 43.00 38.00 262.50 628.00 1211.00 1181.50 7485.00
2001 1349.50 1016.00 883.50 629.00 400.50 141.50 42.00 76.50 269.00 574.00 920.50 1337.00 7639.00
2002 1363.50 1213.00 1090.50 564.00 434.50 99.00 2.50 84.00 282.00 678.50 916.00 1193.50 7921.00
2003 1008.50 1038.00 888.50 630.00 325.00 155.50 4.00 14.50 325.00 511.00 951.00 1262.50 7113.50
2004 1356.50 1218.50 754.00 616.50 360.00 195.50 45.00 131.00 346.50 619.00 952.00 1176.50 7771.00
2005 1009.50 935.00 944.50 701.00 0.00 z 221.00 20.50 117.50 249.50 577.00 845.50 1304.50 6925.50
2006 1223.50 970.50 926.00 600.50 374.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4094.50
Period of Record Statistics
MEAN 1321.02 1075.15 943.80 699.75 453.65 215.22 78.48 104.13 314.34 665.91 990.50 1308.41 8261.48
S.D. 174.21 135.04 90.15 83.37 86.21 60.68 54.27 50.00 66.88 72.64 100.36 108.10 626.73
SKEW 0.18 0.34 -0.01 -0.11 -0.10 -0.21 0.51 0.05 0.38 0.20 0.76 0.15 -0.10
MAX 1661.00 1348.50 1112.50 839.00 593.50 312.50 186.00 188.50 435.50 828.50 1214.50 1524.00 9079.00
MIN 1008.50 829.50 754.00 564.00 278.50 99.00 2.50 14.50 197.00 511.00 845.50 1089.00 7113.50
NO YRS 24 24 24 24 23 23 21 23 23 23 23 24 18