BULLHEAD CITY, ARIZONA

Monthly Total Heating Degree Days

(021050)

Base Temperature = 65 F

File last updated on Apr 3, 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
1977 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 64.00 i 236.50 236.50
1978 375.50 226.50 79.50 42.50 4.50 0.00 0.00 0.00 d 0.00 0.00 225.00 535.50 1489.00
1979 595.50 350.50 156.50 34.66 a 3.50 0.00 0.00 a 0.00 0.00 11.37 a 209.00 330.00 1691.02
1980 292.00 173.00 169.50 49.66 a 0.50 0.00 0.00 a 0.00 b 0.00 19.00 102.00 209.52 b 1015.17
1981 277.97 a 218.00 108.50 8.50 0.00 0.00 0.00 0.00 0.00 13.00 104.00 326.02 a 1055.98
1982 431.50 143.50 d 116.77 a 25.38 d 0.00 0.00 0.00 0.00 0.00 12.50 167.50 453.00 1350.15
1983 328.50 184.00 103.50 37.50 0.00 0.00 0.00 0.00 0.00 0.00 152.00 332.50 1138.00
1984 249.50 193.00 35.50 23.50 0.00 0.00 0.00 0.00 0.00 15.00 180.50 425.50 1122.50
1985 368.00 237.50 125.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 196.00 308.50 1235.00
1986 190.50 162.00 61.50 0.00 0.00 0.00 0.00 0.00 0.50 0.00 61.50 355.50 831.50
1987 385.50 177.50 99.50 7.00 0.00 0.00 0.00 0.00 0.00 0.00 127.50 456.50 1253.50
1988 377.68 a 152.00 73.00 20.00 0.00 0.00 0.00 0.00 0.00 0.00 150.00 320.50 1093.18
1989 374.00 214.00 22.50 0.00 0.00 0.00 0.00 0.00 0.00 10.00 41.00 283.00 944.50
1990 375.00 244.50 72.50 1.50 0.00 0.00 0.00 0.00 0.00 0.00 81.50 474.00 1249.00
1991 382.00 78.50 232.50 9.50 0.00 0.00 0.00 0.00 0.00 30.00 113.00 337.00 1182.50
1992 337.00 143.00 82.50 4.00 0.00 0.00 0.00 0.00 0.00 0.00 145.00 444.00 1155.50
1993 368.50 235.00 75.50 2.50 0.00 0.00 0.00 0.00 0.00 3.00 195.00 357.50 1237.00
1994 285.50 266.50 19.00 7.50 0.00 0.00 0.00 0.00 0.00 9.50 243.00 302.50 1133.50
1995 325.00 75.00 108.00 20.50 1.00 0.00 0.00 0.00 0.00 0.50 13.00 248.00 791.00
1996 257.00 111.50 33.00 0.00 1.50 0.00 0.00 0.00 0.00 25.00 66.00 276.00 770.00
1997 285.00 178.50 41.00 22.00 0.00 0.00 0.00 0.00 0.00 2.50 96.00 357.00 982.00
1998 311.50 259.00 99.50 76.50 0.00 0.00 0.00 0.00 0.00 0.00 101.00 298.50 1146.00
1999 236.00 141.00 34.50 67.00 2.00 0.00 0.00 0.00 a 0.00 0.00 59.00 294.50 834.00
2000 248.00 112.50 63.00 0.00 0.00 0.00 0.00 0.00 0.00 7.50 250.00 269.18 a 950.18
2001 370.50 252.50 84.00 32.00 0.00 0.00 0.00 0.00 0.00 0.00 83.50 398.00 1220.50
2002 335.50 190.00 110.50 0.00 0.00 0.00 0.00 0.00 0.00 5.00 50.00 369.00 1060.00
2003 127.00 202.50 96.00 15.00 0.00 0.00 z 0.00 0.00 0.00 0.00 h 155.00 g 249.50 i 440.50
2004 325.00 235.50 g 1.50 i 5.19 d 0.00 p 0.00 k 0.00 y 0.00 d 0.00 f 33.50 199.04 d 318.04 d 880.77
2005 353.52 e 147.00 f 70.50 q 0.00 0.00 g 0.00 k 0.00 g 0.00 0.00 0.00 44.00 245.50 643.02
2006 260.00 123.50 144.00 6.00 0.00 0.00 0.00 0.00 0.00 0.00 f 58.50 f 317.50 851.00
2007 366.50 169.50 48.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 84.50 246.00 914.50
2008 272.50 224.00 55.91 c 1.00 g 0.50 0.00 0.00 0.00 0.00 6.00 32.59 a 317.00 908.50
2009 168.00 236.00 81.00 11.50 0.00 0.00 0.00 a 0.00 0.00 15.50 76.50 385.00 973.50
2010 296.00 189.50 109.50 39.50 0.00 0.00 0.00 0.00 0.00 0.50 153.50 240.50 1029.00
2011 246.50 h 300.70 e 72.52 c 24.64 b 0.00 c 0.00 a 0.00 c 0.00 f 0.00 c 0.00 j 162.50 395.54 d 955.89
2012 275.26 b 157.35 b 73.07 c 10.34 a 0.00 c 0.00 g 0.00 d 0.00 d 0.00 c 213.38 a 125.00 i 277.50 f 729.41
2013 300.50 g 239.00 i 34.88 c 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 34.88
Period of Record Statistics
MEAN 317.84 191.58 85.93 17.76 0.41 0.00 0.00 0.00 0.01 13.52 123.89 337.14 1101.70
S.D. 83.77 61.03 45.29 19.85 1.04 0.00 0.00 0.00 0.09 37.64 65.55 76.91 206.33
SKEW 0.55 0.27 1.03 1.31 2.86 0.00 0.00 0.00 5.57 4.89 0.26 0.61 0.72
MAX 595.50 350.50 232.50 76.50 4.50 0.00 0.00 0.00 0.50 213.38 250.00 535.50 1691.02
MIN 127.00 75.00 19.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 13.00 209.52 770.00
NO YRS 34 33 34 34 33 31 33 34 34 32 32 34 28