STRONTIA SPRINGS DAM, COLORADO

Monthly Total Heating Degree Days

(058022)

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
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 1040.00 1040.00
1985 1260.00 1109.50 786.37 a 535.00 271.00 104.50 8.00 11.50 263.00 528.00 1022.68 b 1233.50 7133.05
1986 902.00 872.50 637.00 525.50 377.00 69.11 b 9.30 a 12.00 252.78 c 527.00 846.00 1201.50 6231.69
1987 1158.50 891.50 917.50 537.00 312.50 58.50 24.50 60.50 181.50 492.50 832.50 1185.00 6652.00
1988 1318.50 972.00 933.00 585.00 a 306.50 48.00 19.00 12.00 230.00 402.50 823.00 1188.50 6838.00
1989 1127.00 1198.50 771.50 536.50 338.50 187.50 8.50 18.50 193.00 523.00 785.19 d 1273.00 6960.69
1990 1061.00 952.00 881.00 553.50 428.50 69.00 56.50 27.50 136.50 525.50 784.00 1340.50 6815.50
1991 1213.65 a 821.50 811.50 656.50 326.50 90.00 37.00 32.00 202.00 555.00 976.00 1110.50 6832.15
1992 1126.50 866.50 773.00 480.00 300.00 161.00 55.00 104.00 194.00 458.00 1024.50 1232.50 6775.00
1993 1245.00 1066.00 815.00 638.00 370.50 180.00 33.00 78.50 342.50 644.00 1016.00 1152.50 7581.00
1994 1114.00 1044.50 823.00 655.50 286.00 58.00 40.50 15.00 163.00 574.00 930.00 1071.00 6774.50
1995 1195.50 890.00 954.50 786.50 595.50 222.00 95.50 20.50 301.00 636.50 832.50 1137.00 7667.00
1996 1293.50 1028.50 1034.50 639.50 380.50 133.50 33.00 46.00 323.00 592.00 936.00 1182.50 7622.50
1997 1283.50 1081.00 905.50 925.00 504.00 147.50 67.00 101.50 222.00 648.50 1092.50 1374.50 8352.50
1998 1186.00 1024.00 1052.50 835.50 429.50 329.50 35.50 78.50 201.50 671.00 934.00 1383.50 8161.00
1999 1230.50 973.26 a 915.00 964.00 611.00 343.50 61.00 136.00 475.00 707.00 873.50 1350.00 8639.76
2000 1290.00 1034.00 1023.00 784.00 544.00 91.50 0.50 5.00 190.50 514.50 1118.50 1209.50 7805.00
2001 1144.00 1015.50 850.00 561.50 357.50 91.00 0.00 24.50 134.00 549.50 775.50 1145.00 6648.00
2002 1218.00 1021.50 1035.50 553.00 438.00 71.50 1.00 45.50 220.00 709.00 973.50 1149.00 7435.50
2003 1019.50 1100.50 922.50 609.50 413.50 152.50 0.00 10.00 247.50 358.00 942.00 1041.00 6816.50
2004 1085.50 1060.00 664.00 560.50 331.00 180.00 46.00 80.00 135.00 495.50 894.00 1074.00 6605.50
2005 982.50 888.50 859.50 639.50 348.50 146.00 9.00 30.00 133.50 478.00 782.00 1187.00 6484.00
2006 976.00 1032.00 871.50 525.50 282.00 34.00 13.50 22.00 317.50 556.00 761.00 1138.50 6529.50
2007 1396.00 929.00 720.50 643.50 310.50 114.00 1.50 5.00 142.50 430.00 760.50 1228.00 6681.00
2008 1248.50 1005.00 890.00 699.50 0.00 z 137.50 3.50 52.50 244.50 520.50 709.50 1189.50 6700.50
2009 1085.50 841.50 794.00 710.00 324.50 196.00 0.00 z 51.00 200.50 808.00 805.50 1338.50 7155.00
2010 1121.50 1094.50 869.50 603.00 457.50 97.00 20.50 3.50 117.00 417.50 830.50 1010.00 6642.00
2011 1158.00 1136.00 751.00 621.00 525.00 98.50 0.50 0.00 201.50 501.00 816.50 1205.00 7014.00
2012 1070.50 1053.00 643.00 449.50 296.00 46.00 1.50 16.02 a 145.50 586.50 740.50 1136.50 6184.52
2013 1185.50 1055.50 948.00 43.50 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 3189.00
Period of Record Statistics
MEAN 1161.94 1001.99 857.00 636.18 387.61 130.61 25.21 39.25 218.22 550.30 879.21 1189.91 7072.38
S.D. 112.79 94.81 113.09 126.03 97.48 77.06 25.44 35.48 79.50 101.52 110.39 99.84 643.55
SKEW -0.25 -0.22 -0.18 1.06 0.90 1.26 0.97 1.09 1.29 0.47 0.52 0.30 0.92
MAX 1396.00 1198.50 1052.50 964.00 611.00 343.50 95.50 136.00 475.00 808.00 1118.50 1383.50 8639.76
MIN 902.00 821.50 637.00 449.50 271.00 34.00 0.00 0.00 117.00 358.00 709.50 1010.00 6184.52
NO YRS 29 29 29 28 27 28 27 28 28 28 28 29 26