SIERRA VISTA, ARIZONA

Monthly Total Heating Degree Days

(027880)

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
1982 0.00 z 0.00 z 317.00 90.00 b 45.00 0.00 0.00 0.00 1.00 73.00 391.00 631.00 1548.00
1983 625.50 455.00 434.50 299.00 51.50 0.00 0.00 0.00 9.00 78.00 399.00 501.50 2853.00
1984 603.50 478.50 300.50 210.50 5.50 0.00 0.00 0.00 0.00 156.00 380.00 594.00 2728.50
1985 664.50 552.00 355.00 147.00 20.50 3.00 0.00 0.00 10.00 118.83 a 370.50 552.00 2793.33
1986 463.50 390.00 240.50 79.00 18.00 0.00 0.00 0.00 22.00 76.50 357.00 593.50 2240.00
1987 599.85 a 480.00 420.50 112.00 20.50 0.00 0.00 0.00 0.00 5.50 364.00 594.34 b 2596.69
1988 593.50 404.00 330.00 160.50 42.50 0.00 0.00 0.00 0.00 15.50 315.50 592.00 2453.50
1989 647.00 345.00 169.00 31.50 30.00 0.00 0.00 0.00 0.00 114.00 311.00 581.50 2229.00
1990 629.50 518.00 277.00 80.00 32.00 0.00 0.00 1.50 1.50 45.00 306.50 602.50 2493.50
1991 596.50 383.50 480.50 148.00 18.50 9.00 0.00 0.00 2.00 98.00 338.00 609.00 2683.00
1992 673.00 449.00 368.50 104.00 28.50 0.00 0.00 0.00 0.00 21.50 429.00 552.00 2625.50
1993 502.50 435.00 279.50 94.00 1.00 1.50 0.00 w 0.00 l 0.00 80.00 358.50 521.50 2273.50
1994 484.00 420.50 307.50 120.50 22.50 0.00 0.00 0.00 0.00 73.50 340.50 494.50 2263.50
1995 550.00 289.50 267.50 172.50 36.00 i 0.00 0.00 0.00 0.00 k 15.50 a 200.50 303.50 k 1495.50
1996 447.50 279.50 306.00 94.50 7.50 0.00 0.00 0.00 0.00 145.00 268.00 445.00 1993.00
1997 556.00 424.50 199.50 187.00 0.00 0.00 0.00 0.00 0.00 120.00 260.00 0.00 z 1747.00
1998 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 45.50 253.50 518.50 817.50
1999 452.00 303.00 246.50 229.50 25.50 1.00 0.00 0.00 0.00 46.50 145.00 564.00 2013.00
2000 412.50 304.00 310.00 56.00 1.00 0.00 0.00 0.00 0.00 155.00 510.00 479.50 2228.00
2001 639.00 437.00 318.00 130.00 12.00 0.00 0.00 0.00 0.00 18.50 247.00 615.00 2416.50
2002 532.50 387.50 302.50 30.00 3.50 0.00 0.00 0.00 0.00 103.50 268.50 617.50 2245.50
2003 373.50 408.00 343.50 130.50 16.00 0.00 0.00 0.00 0.50 26.00 313.00 506.00 2117.00
2004 557.50 540.73 e 166.50 167.50 4.50 0.00 0.00 0.00 2.50 74.00 433.00 550.00 2496.23
2005 477.50 426.50 343.50 96.50 13.00 0.00 z 0.00 0.00 0.00 58.00 0.00 z 466.00 1881.00
2006 464.00 334.00 332.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 593.50 1724.00
2007 675.00 403.50 265.50 118.00 10.00 0.00 0.00 0.00 0.00 34.00 143.50 l 594.50 2100.50
2008 580.50 0.00 z 0.00 z 108.62 a 29.00 0.00 0.00 c 0.00 0.00 51.50 261.50 510.50 1541.62
2009 455.00 352.50 237.00 88.00 h 0.00 0.00 0.00 e 0.00 f 0.00 0.00 z 0.00 z 0.00 z 1044.50
2010 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
2011 403.50 k 388.00 g 144.50 h 88.39 b 50.50 f 0.00 n 0.00 k 0.00 h 0.00 k 50.00 h 281.50 f 422.00 i 88.39
2012 268.00 l 287.00 j 94.50 s 61.00 h 1.00 j 0.00 j 0.00 m 0.00 f 0.00 o 488.77 a 855.50 1083.00 2427.27
2013 880.40 a 776.50 594.68 a 3.00 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 2251.58
Period of Record Statistics
MEAN 560.58 422.20 315.30 126.35 18.32 0.58 0.00 0.06 1.87 86.56 347.04 575.47 2414.93
S.D. 106.70 102.70 91.70 60.52 14.61 1.88 0.00 0.30 4.85 91.52 132.22 115.79 263.13
SKEW 0.71 1.48 1.01 0.88 0.59 3.89 0.00 4.69 3.20 3.25 2.24 3.28 0.04
MAX 880.40 776.50 594.68 299.00 51.50 9.00 0.00 1.50 22.00 488.77 855.50 1083.00 2853.00
MIN 373.50 279.50 166.50 30.00 0.00 0.00 0.00 0.00 0.00 5.50 145.00 445.00 1993.00
NO YRS 27 26 27 26 25 25 26 25 26 27 25 26 18