PORTAL 4 SW, ARIZONA

Monthly Total Heating Degree Days

(026716)

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
1965 0.00 z 0.00 z 646.00 350.50 202.50 51.50 0.00 0.50 90.50 339.00 491.50 783.00 2955.00
1966 976.50 829.50 570.00 358.00 126.50 10.50 0.00 3.00 57.00 363.50 500.50 878.50 4673.50
1967 852.00 618.50 447.50 325.00 210.00 14.50 0.00 0.00 66.50 304.50 546.50 935.50 4320.50
1968 803.50 599.00 628.00 438.00 187.00 24.50 5.00 14.50 67.00 261.50 589.50 827.50 4445.00
1969 655.50 703.50 683.50 313.50 186.50 17.00 0.00 0.00 37.50 280.50 625.50 766.50 4269.50
1970 863.50 622.00 612.50 424.50 145.50 19.50 0.00 a 0.50 102.00 423.50 562.50 706.00 4482.00
1971 820.50 655.00 520.00 393.50 186.00 34.14 a 0.00 0.00 a 74.50 370.45 a 602.50 838.00 4494.59
1972 792.50 648.50 390.00 323.00 201.50 18.50 0.00 4.00 55.50 259.00 699.00 817.50 4209.00
1973 910.00 692.50 718.00 544.00 206.00 51.50 3.00 4.50 71.50 311.00 572.50 785.00 4869.50
1974 799.50 737.50 481.00 369.00 139.50 11.50 0.00 7.00 95.00 331.00 641.38 a 915.00 4527.38
1975 835.00 738.00 583.00 487.00 248.50 11.50 0.00 0.00 86.50 304.50 621.50 811.50 4727.00
1976 875.50 584.50 585.50 396.50 187.50 16.00 0.00 0.00 84.50 447.50 708.50 904.00 4790.00
1977 863.50 664.50 673.00 388.50 197.00 21.00 0.00 0.00 17.50 245.50 532.50 675.00 4278.00
1978 763.50 700.50 512.00 356.50 189.50 9.00 0.00 1.50 58.00 286.00 525.50 882.50 4284.50
1979 900.00 661.50 595.00 369.00 207.50 54.00 0.50 26.50 66.00 219.50 671.50 797.50 4568.50
1980 738.00 645.50 600.00 391.00 202.00 6.00 0.00 0.50 33.00 387.00 619.50 725.50 4348.00
1981 782.50 618.50 632.00 300.00 152.00 12.00 0.00 1.00 54.50 304.50 535.50 679.50 4072.00
1982 722.50 599.00 512.00 315.00 191.00 8.00 0.00 0.00 42.50 336.00 608.50 884.53 a 4219.03
1983 856.00 645.50 599.00 495.50 214.00 29.00 0.00 0.50 32.00 263.50 577.50 688.00 4400.50
1984 824.50 717.00 541.00 374.50 65.00 4.00 1.50 1.50 46.50 346.00 592.50 740.50 4254.50
1985 840.00 700.00 518.00 330.00 155.00 30.00 0.00 0.00 96.00 318.00 557.00 801.00 4345.00
1986 734.00 591.50 511.00 262.50 147.50 13.00 6.00 0.00 83.00 352.00 609.50 847.50 4157.50
1987 874.00 717.50 654.50 381.50 234.00 17.00 0.00 17.50 93.10 a 210.00 619.50 887.00 4705.60
1988 850.00 655.00 595.00 378.50 174.00 12.00 0.00 5.50 112.50 263.50 603.00 939.50 4588.50
1989 912.50 613.00 492.50 278.50 140.00 32.50 0.00 11.00 69.50 356.00 629.50 921.50 4456.50
1990 901.50 761.00 586.50 315.50 194.00 4.50 0.00 26.50 80.00 374.00 616.50 895.00 4755.00
1991 893.00 656.50 695.00 420.50 218.50 86.50 0.00 3.50 113.00 325.50 682.00 880.50 4974.50
1992 988.50 709.50 619.00 361.00 230.50 40.50 1.50 19.00 55.00 278.50 760.50 843.00 4906.50
1993 775.00 700.00 597.50 393.50 175.50 48.50 0.00 8.00 100.50 361.50 663.00 840.50 4663.50
1994 859.00 698.00 572.50 375.00 169.50 0.00 0.00 0.00 32.00 314.65 a 564.50 775.50 4360.65
1995 795.50 547.50 531.00 430.00 201.00 30.00 0.00 0.00 42.50 273.00 499.00 748.50 4098.00
1996 725.00 515.50 542.50 311.50 57.00 2.00 0.00 7.50 101.50 300.50 558.50 779.00 3900.50
1997 814.50 665.00 514.00 404.50 85.50 21.00 1.50 0.00 20.50 362.00 587.50 417.50 q 3476.00
1998 775.50 717.50 637.00 462.00 181.50 28.50 1.00 0.00 3.00 249.00 542.50 796.00 4393.50
1999 733.00 600.00 532.17 a 391.00 137.50 36.50 0.00 3.00 29.50 308.50 495.00 837.50 4103.67
2000 706.50 563.43 a 560.50 266.00 60.00 2.50 0.00 b 8.50 0.00 z 328.08 a 736.50 790.50 4022.51
2001 908.00 655.00 580.50 318.50 97.50 2.50 g 0.00 m 0.00 39.50 238.04 c 512.00 880.50 4229.54
2002 806.00 671.50 538.50 238.97 a 150.50 6.00 0.00 0.00 40.00 342.00 578.00 867.00 4238.47
2003 721.00 614.00 610.50 376.50 118.50 8.00 0.00 0.00 9.50 186.00 550.50 836.00 4030.50
2004 787.00 755.00 470.00 397.00 114.00 g 9.50 k 0.00 e 19.00 104.00 324.35 d 687.50 850.36 b 4394.21
2005 745.50 621.00 603.47 a 361.50 144.50 0.00 z 0.00 0.50 18.50 299.00 0.00 z 636.50 g 2793.97
2006 751.00 571.00 540.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 708.50 f 1862.00
2007 928.89 c 643.00 560.14 b 215.00 j 108.00 7.50 0.00 0.00 20.50 234.00 454.14 a 830.00 3786.17
2008 0.00 z 614.50 0.00 z 348.50 186.50 3.00 0.00 1.50 80.50 297.50 416.50 g 715.00 2247.00
2009 730.00 556.50 495.00 373.00 75.00 18.00 f 0.00 n 0.00 30.00 f 267.00 301.50 h 554.00 i 2496.50
2010 832.00 636.00 584.50 349.00 171.50 10.50 0.00 0.50 12.50 216.50 588.00 537.50 f 3401.00
2011 798.50 675.00 430.38 a 213.50 157.77 c 3.50 0.00 0.00 b 12.93 a 198.92 a 508.50 793.08 a 3792.08
2012 707.50 611.50 540.50 245.69 a 96.10 a 0.00 b 0.00 a 0.00 36.96 b 1678.81 b 832.76 a 711.50 5461.32
2013 890.00 725.50 454.15 a 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 2069.65
Period of Record Statistics
MEAN 817.39 655.02 564.49 362.96 163.30 20.17 0.44 4.19 58.77 332.78 596.81 816.44 4436.87
S.D. 75.31 62.68 70.23 66.75 48.32 18.13 1.25 7.05 31.34 208.56 77.71 71.52 328.43
SKEW 0.14 0.22 -0.13 0.17 -0.62 1.50 3.31 1.93 0.02 5.87 0.76 -0.27 0.70
MAX 988.50 829.50 718.00 544.00 248.50 86.50 6.00 26.50 113.00 1678.81 832.76 939.50 5461.32
MIN 655.50 515.50 390.00 213.50 57.00 0.00 0.00 0.00 3.00 186.00 454.14 675.00 3792.08
NO YRS 47 48 48 46 46 43 45 47 45 47 44 43 37