TUCSON U OF A #1, ARIZONA

Monthly Total Heating Degree Days

(028817)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201209
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 7.00 0.00 0.00 0.00 0.00 39.50 199.50 453.50 699.50
1983 400.00 332.50 242.00 164.00 11.50 0.00 0.00 0.00 0.00 2.50 250.00 353.50 1756.00
1984 414.50 354.50 156.50 90.50 1.50 0.00 c 0.00 b 0.00 0.00 48.50 224.00 429.19 b 1719.19
1985 454.50 353.00 184.00 21.50 1.50 0.00 0.00 0.00 0.00 13.00 239.50 408.50 1675.50
1986 224.00 235.00 111.00 22.50 4.50 0.00 0.00 0.00 0.00 18.50 180.00 421.50 1217.00
1987 436.00 301.50 135.50 17.00 0.00 0.00 0.00 0.00 0.00 0.00 202.00 470.00 1562.00
1988 453.50 245.00 201.00 58.50 20.00 0.00 0.00 0.00 0.00 0.00 237.00 429.00 1644.00
1989 470.00 224.50 83.50 9.50 1.00 0.00 0.00 0.00 0.00 34.00 168.50 446.00 1437.00
1990 461.50 364.50 165.00 17.50 1.50 0.00 0.00 0.00 0.00 6.00 164.50 474.50 1655.00
1991 437.00 168.00 298.00 53.00 7.00 1.50 0.00 0.00 0.00 50.00 231.00 350.00 1595.50
1992 420.50 233.50 187.00 32.00 0.00 0.00 0.00 0.00 0.00 0.00 282.50 400.00 1555.50
1993 276.50 301.50 156.50 38.00 0.00 0.00 0.00 0.00 0.00 17.00 244.00 398.50 1432.00
1994 413.00 321.50 110.50 50.00 1.00 0.00 0.00 0.00 0.00 29.50 272.00 386.00 1583.50
1995 417.00 150.50 171.00 98.50 19.50 0.00 0.00 0.00 0.00 8.00 71.00 358.50 1294.00
1996 355.00 172.00 147.50 26.00 0.00 0.00 0.00 0.00 0.00 92.00 134.50 351.50 1278.50
1997 385.00 295.00 71.00 72.00 0.00 0.00 0.00 0.00 0.00 57.50 146.50 521.00 1548.00
1998 349.50 383.50 208.00 155.50 1.00 0.00 z 0.00 0.00 0.00 16.00 114.50 383.50 1611.50
1999 330.00 209.00 108.00 131.00 5.00 0.00 0.00 0.00 0.00 1.50 90.50 421.00 1296.00
2000 307.00 193.00 165.50 22.50 0.00 0.00 0.00 0.00 0.00 43.50 367.00 350.00 1448.50
2001 447.50 317.00 150.50 70.00 0.00 0.00 0.00 0.00 0.00 0.00 120.00 450.00 1555.00
2002 383.00 221.00 179.50 0.00 2.50 0.00 0.00 0.00 0.00 16.00 103.00 415.50 1320.50
2003 203.00 267.00 159.50 60.00 2.00 0.00 0.00 0.00 0.00 1.00 167.00 347.00 1206.50
2004 358.50 394.00 79.00 46.50 0.00 0.00 0.00 0.00 0.00 37.00 242.00 384.50 1541.50
2005 316.50 254.50 176.00 24.00 0.00 0.00 z 0.00 0.00 0.00 0.00 0.00 z 332.00 1103.00
2006 317.50 216.50 186.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 406.00 1126.50
2007 462.00 226.50 119.00 22.50 0.00 0.00 0.00 0.00 0.00 3.00 64.66 a 467.50 1365.16
2008 406.50 283.00 0.00 z 17.50 5.00 0.00 0.00 0.00 0.00 26.00 111.50 351.00 1200.50
2009 312.00 227.00 106.00 49.00 0.00 0.00 0.00 z 0.00 0.00 33.00 0.00 z 0.00 z 727.00
2010 102.50 x 12.00 z 224.50 64.50 12.00 0.00 0.00 0.00 0.00 10.00 251.00 298.00 860.00
2011 465.50 391.50 84.00 34.00 8.00 0.00 0.00 0.00 0.00 b 14.50 197.59 a 520.50 1715.59
2012 336.87 a 291.04 a 194.86 c 51.92 d 0.00 0.00 0.00 0.00 0.00 u 0.00 z 0.00 z 0.00 z 874.68
Period of Record Statistics
MEAN 379.77 273.35 157.27 52.39 3.72 0.05 0.00 0.00 0.00 21.29 187.97 406.13 1495.71
S.D. 72.64 69.72 52.39 41.49 5.55 0.28 0.00 0.00 0.00 22.22 72.87 55.32 168.72
SKEW -0.73 0.15 0.41 1.33 1.79 5.00 0.00 0.00 0.00 1.27 0.20 0.27 -0.24
MAX 470.00 394.00 298.00 164.00 20.00 1.50 0.00 0.00 0.00 92.00 367.00 521.00 1756.00
MIN 203.00 150.50 71.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 64.66 298.00 1206.50
NO YRS 29 29 29 29 30 28 29 30 29 29 27 29 23