RALSTON RSVR, COLORADO

Monthly Total Heating Degree Days

(056816)

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
1978 0.00 z 0.00 z 0.00 z 0.00 z 372.00 110.00 10.00 40.00 124.50 0.00 z 0.00 z 0.00 z 656.50
1979 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
1980 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
1981 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
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1983 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
1984 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
1985 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
1986 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
1987 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
1988 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
1989 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
1990 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
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 0.00 z 695.50 253.00 42.50 2.50 23.50 118.50 405.50 857.00 995.50 3393.50
1998 886.50 835.50 854.50 635.00 165.00 153.50 6.00 0.50 54.00 429.00 0.00 z 1003.00 5022.50
1999 939.00 696.00 671.67 a 718.45 a 319.09 b 88.00 1.00 12.00 216.00 396.80 a 474.31 a 884.00 5416.31
2000 892.00 722.50 738.00 442.24 a 191.17 a 73.00 0.00 b 0.00 166.00 459.32 a 983.50 1050.50 5718.22
2001 1008.50 943.50 798.50 449.44 c 260.50 56.50 0.00 7.00 79.50 425.73 a 607.50 953.00 5589.68
2002 1011.00 852.00 971.50 427.50 331.00 24.50 0.00 13.50 136.00 598.50 784.00 872.00 6021.50
2003 782.50 969.50 744.00 447.50 291.50 107.50 0.00 11.00 167.50 276.50 834.00 883.00 5514.50
2004 929.00 940.00 564.00 521.00 204.00 121.50 25.00 41.50 132.00 425.00 779.50 895.00 5577.50
2005 871.00 799.00 763.00 546.00 284.00 76.00 7.50 26.00 107.00 436.00 624.50 1020.00 5560.00
2006 820.50 958.50 838.00 405.50 215.00 16.50 14.50 13.00 247.50 490.00 691.00 980.00 5690.00
2007 1222.50 874.50 615.50 588.00 240.00 57.00 0.00 0.00 z 102.50 360.00 689.00 1147.00 5896.00
2008 1112.50 903.50 818.00 595.00 322.00 53.00 0.00 42.50 172.00 437.00 611.00 1109.50 6176.00
2009 936.50 741.50 717.50 631.50 0.00 z 114.50 27.00 24.50 166.00 733.00 657.00 1204.00 5953.00
2010 993.00 1052.00 767.00 537.50 415.00 52.50 19.00 1.00 50.50 359.50 764.50 894.50 5906.00
2011 1040.00 1036.00 697.50 543.00 450.53 a 23.50 0.00 0.00 113.50 403.50 711.50 1069.00 6088.03
2012 886.00 1027.50 488.00 366.00 205.00 14.00 0.00 2.00 77.00 483.00 566.00 983.50 5098.00
2013 1014.50 948.50 853.50 41.50 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 2816.50
Period of Record Statistics
MEAN 959.06 893.75 743.76 534.32 282.42 69.65 6.62 16.12 131.18 444.90 708.95 996.47 5696.31
S.D. 110.73 111.62 120.20 105.19 82.13 41.01 9.29 15.20 53.71 103.24 128.89 100.44 308.55
SKEW 0.66 -0.35 -0.37 0.15 0.53 0.37 1.17 0.60 0.44 1.34 0.29 0.50 -0.11
MAX 1222.50 1052.00 971.50 718.45 450.53 153.50 27.00 42.50 247.50 733.00 983.50 1204.00 6176.00
MIN 782.50 696.00 488.00 366.00 165.00 14.00 0.00 0.00 50.50 276.50 474.31 872.00 5098.00
NO YRS 16 16 16 16 16 17 17 16 17 16 15 16 12