NORTHGLENN, COLORADO

Monthly Total Heating Degree Days

(055984)

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 212.59 a 635.00 754.14 a 1044.04 c 2645.76
1985 1245.50 1066.07 a 761.71 c 461.11 c 220.21 b 58.50 1.60 b 6.72 a 261.00 501.74 d 1088.00 1203.12 b 6875.29
1986 813.75 e 851.20 c 595.89 d 529.29 b 336.98 d 38.79 a 9.41 c 4.13 a 210.52 a 0.00 z 845.89 b 1113.86 b 5349.72
1987 1125.19 d 936.50 894.50 521.25 b 292.50 54.64 b 18.50 47.00 209.44 c 483.71 b 810.00 a 1204.98 d 6598.21
1988 0.00 z 0.00 z 726.50 f 549.81 d 278.45 c 34.00 11.22 b 7.00 185.50 408.00 757.76 a 1037.00 3268.74
1989 979.00 0.00 z 0.00 z 0.00 z 227.50 80.50 0.00 0.00 163.00 436.00 664.50 1152.50 3703.00
1990 877.50 891.50 805.00 509.00 305.50 16.00 17.50 6.50 64.50 413.50 666.50 1227.50 5800.50
1991 1141.50 696.50 704.50 552.50 206.50 31.00 10.50 6.50 135.50 470.50 918.00 960.50 5834.00
1992 991.00 723.50 700.50 337.50 199.50 61.50 17.00 43.00 66.50 356.50 937.00 1191.50 5625.00
1993 1184.50 1013.50 704.50 523.50 225.00 84.00 8.50 31.00 189.50 525.00 943.00 950.00 6382.00
1994 964.50 927.50 662.00 529.50 137.00 6.50 8.00 2.00 73.50 420.50 851.50 917.00 5499.50
1995 955.00 758.00 733.00 639.50 535.50 184.00 37.00 2.00 246.50 524.00 711.00 1012.50 6338.00
1996 1244.00 916.00 927.50 532.00 292.00 42.00 10.00 15.00 179.00 406.50 759.00 905.00 6228.00
1997 1095.00 920.00 625.50 663.00 220.00 30.00 0.52 a 8.50 91.00 418.50 841.00 1023.50 5936.52
1998 931.00 809.50 805.00 540.50 152.00 118.00 0.00 0.00 32.50 387.50 589.50 1030.50 5396.00
1999 904.74 d 646.50 467.50 j 0.00 z 243.98 d 70.18 b 0.00 1.50 182.50 378.50 506.00 873.00 3806.90
2000 923.00 716.00 693.37 a 394.00 155.50 53.50 0.00 4.50 145.50 441.50 976.00 1058.00 5560.87
2001 1014.00 956.00 716.00 430.00 225.00 41.00 0.00 4.00 52.00 380.00 646.50 954.00 5418.50
2002 987.00 805.50 857.00 355.50 262.50 11.50 0.00 3.50 80.50 582.50 724.00 866.00 5535.50
2003 735.50 924.50 650.50 388.50 216.50 42.00 0.00 5.00 122.50 242.00 800.00 875.50 5002.50
2004 940.00 895.50 519.50 459.50 162.50 75.00 13.50 33.00 99.00 380.50 756.00 891.50 5225.50
2005 887.50 756.50 715.00 503.50 254.00 70.00 5.50 15.50 64.00 378.00 586.50 998.50 5234.50
2006 774.00 872.00 760.50 339.00 147.50 1.50 10.50 5.00 170.50 425.50 662.00 961.50 5129.50
2007 1241.50 878.50 539.00 531.00 186.50 28.00 0.00 0.00 92.00 314.50 654.00 1113.50 5578.50
2008 1071.50 841.00 737.50 482.00 217.50 25.00 0.00 25.50 85.50 351.50 561.00 1108.50 5506.50
2009 894.00 661.50 610.50 515.50 165.50 57.50 14.00 5.00 113.50 0.00 z 652.50 1242.50 4932.00
2010 1034.50 1017.00 741.50 478.50 328.50 42.50 11.00 0.00 31.00 304.00 757.00 886.00 5631.50
2011 1041.50 1025.50 668.50 455.00 404.50 22.50 0.00 0.00 a 103.50 381.50 659.50 1073.50 5835.50
2012 846.82 a 991.00 469.00 311.00 148.80 a 11.00 0.00 2.14 b 9.00 z 482.00 606.50 976.00 4844.25
2013 1041.00 912.00 841.65 a 33.00 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 2794.65
Period of Record Statistics
MEAN 995.86 866.99 709.20 481.98 240.98 49.66 7.29 10.14 130.81 423.29 747.73 1029.36 5735.09
S.D. 137.67 115.70 110.91 87.86 87.25 37.55 8.65 13.26 65.48 84.72 137.57 116.28 487.41
SKEW 0.23 -0.30 -0.14 -0.20 1.52 1.74 1.49 1.64 0.29 0.42 0.51 0.31 0.74
MAX 1245.50 1066.07 927.50 663.00 535.50 184.00 37.00 47.00 261.00 635.00 1088.00 1242.50 6875.29
MIN 735.50 646.50 469.00 311.00 137.00 1.50 0.00 0.00 31.00 242.00 506.00 866.00 5002.50
NO YRS 28 27 26 26 28 28 28 28 28 27 29 29 22