DOUGLAS FAA AP, ARIZONA

Monthly Total Heating Degree Days

(022664)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 a 0.00 0.00 93.00 548.50 583.32 a 1224.82
1949 845.50 551.50 377.50 172.00 17.50 0.00 0.00 0.00 0.00 178.00 273.62 a 634.00 3049.62
1950 592.50 404.00 300.50 66.50 39.00 0.00 0.00 0.00 0.00 2.50 299.00 482.50 2186.50
1951 665.00 488.50 404.50 211.00 54.50 0.00 0.00 0.00 0.00 55.50 399.00 575.00 2853.00
1952 528.50 549.00 522.50 180.00 20.00 3.50 0.00 0.00 0.00 17.50 474.00 669.50 2964.50
1953 532.00 541.00 311.50 166.50 116.00 0.00 0.00 0.00 0.00 85.00 332.50 774.00 2858.50
1954 562.50 362.50 339.00 53.50 18.50 0.00 0.00 0.00 0.00 47.00 294.50 560.50 2238.00
1955 738.50 615.50 355.50 181.50 49.50 1.50 0.00 0.00 0.00 41.50 387.00 516.50 2887.00
1956 506.00 610.00 331.50 199.50 11.50 0.00 0.00 0.00 0.00 106.50 476.00 662.00 2903.00
1957 498.00 258.00 371.00 149.50 60.00 0.00 0.00 0.00 0.00 148.50 528.00 573.00 2586.00
1958 678.00 459.00 497.00 190.00 17.00 0.00 0.00 0.00 3.50 100.00 410.50 549.00 2904.00
1959 553.00 484.00 382.00 89.50 24.50 0.00 0.00 0.00 0.00 83.50 412.00 609.50 2638.00
1960 729.50 621.00 275.50 143.50 31.50 0.00 0.00 0.00 0.00 120.00 355.50 684.00 2960.50
1961 605.50 483.00 377.50 117.50 32.00 0.00 0.00 0.00 0.00 100.50 469.00 581.50 2766.50
1962 661.50 409.00 518.00 89.50 36.50 0.00 0.00 0.00 0.00 42.00 283.50 538.50 2578.50
1963 651.00 404.00 355.00 155.50 2.50 0.00 0.00 0.00 0.00 44.00 404.50 630.50 2647.00
1964 758.00 705.50 488.00 219.50 54.00 0.00 0.00 0.00 5.00 76.50 439.50 587.00 3333.00
1965 549.00 554.00 449.00 167.50 58.00 2.00 0.00 0.00 21.00 108.50 275.00 598.50 2782.50
1966 768.50 651.00 375.00 148.50 13.00 0.00 0.00 0.00 2.00 128.50 335.50 666.00 3088.00
1967 645.00 439.50 256.50 168.00 55.00 0.00 0.00 0.00 0.00 84.00 319.50 699.00 2666.50
1968 619.00 382.00 397.50 250.00 41.00 2.00 0.00 1.00 0.00 75.50 424.50 695.50 2888.00
1969 531.50 517.50 518.50 125.50 65.50 0.00 0.00 0.00 0.00 136.00 404.50 567.00 2866.00
1970 668.00 436.50 438.00 255.50 27.00 0.00 0.00 0.00 20.50 176.50 358.00 538.50 2918.50
1971 611.00 527.50 313.00 203.50 45.00 1.00 0.00 0.00 4.50 180.00 388.50 653.00 2927.00
1972 618.50 474.50 200.00 142.50 20.50 0.00 0.00 0.00 0.00 140.50 502.00 634.00 2732.50
1973 699.00 495.50 523.50 293.50 39.00 0.00 0.00 0.00 0.00 71.50 359.50 602.00 3083.50
1974 595.00 550.00 280.00 170.00 17.50 0.00 0.00 0.00 2.50 121.50 402.50 714.50 2853.50
1975 630.00 516.50 404.00 293.50 64.00 0.00 0.00 0.00 0.00 106.50 386.50 595.50 2996.50
1976 658.50 377.50 367.50 176.00 17.00 0.00 0.00 0.00 3.00 210.50 425.00 639.50 2874.50
1977 636.00 430.00 475.00 152.00 36.50 1.00 0.00 0.00 0.00 54.50 347.00 467.00 2599.00
1978 557.00 506.50 285.50 156.50 58.00 0.00 0.00 0.00 0.00 87.00 371.00 734.00 2755.50
1979 699.00 472.50 402.00 162.50 60.50 3.00 0.00 0.00 11.00 75.50 484.50 581.50 2952.00
1980 543.50 419.50 417.50 212.00 36.50 0.00 0.00 0.00 0.00 183.00 395.00 469.50 2676.50
1981 542.50 392.50 396.00 85.50 2.00 0.00 0.00 0.00 0.00 h 45.50 i 197.00 i 378.50 h 1418.50
1982 569.50 404.00 323.00 90.50 42.00 0.00 0.00 0.00 0.00 95.00 373.50 659.50 2557.00
1983 632.50 461.50 415.00 322.50 63.50 0.00 0.00 0.00 8.50 77.00 433.00 561.00 2974.50
1984 606.00 539.50 335.50 203.00 5.50 0.00 0.00 0.00 0.00 147.00 400.50 534.50 2771.50
1985 648.50 515.00 327.00 129.00 14.50 3.50 0.00 0.00 14.00 93.50 371.50 571.00 2687.50
1986 488.50 385.50 269.50 85.00 28.50 0.00 0.00 0.00 15.00 116.50 389.50 623.50 2401.50
1987 672.00 510.00 454.00 132.00 29.00 0.00 0.00 0.00 0.00 12.00 397.00 649.50 2855.50
1988 616.50 445.50 389.00 187.00 52.00 0.00 0.00 0.00 0.50 19.50 356.50 652.50 2719.00
1989 628.50 344.00 209.00 43.00 27.00 0.00 0.00 0.00 0.00 93.50 314.50 583.00 2242.50
1990 645.00 533.00 318.00 92.50 26.50 0.00 0.00 0.00 2.50 74.50 331.00 613.00 2636.00
1991 624.00 387.00 427.50 153.50 18.50 7.50 0.00 0.00 0.00 92.50 400.00 593.00 2703.50
1992 695.00 452.50 353.50 111.00 18.00 0.00 0.00 0.50 0.00 23.50 496.00 570.50 2720.50
1993 497.50 448.50 321.50 123.50 2.50 0.00 0.00 0.00 0.00 123.50 394.00 568.50 2479.50
1994 597.00 480.00 294.00 126.50 27.50 0.00 0.00 0.00 0.00 110.50 405.50 556.00 2597.00
1995 579.50 323.00 297.50 215.50 52.00 0.00 0.00 0.00 0.00 35.50 256.00 548.50 2307.50
1996 536.00 313.50 325.00 115.50 1.50 0.00 0.00 0.00 0.00 158.00 322.00 520.00 2291.50
1997 579.00 465.00 218.00 190.00 0.00 0.00 0.00 0.00 0.00 137.00 329.00 700.00 2618.00
1998 565.50 537.50 375.00 241.50 22.00 0.00 0.00 0.00 0.00 42.00 306.00 551.00 2640.50
1999 510.00 369.50 281.00 208.50 18.00 0.50 0.00 0.00 0.00 88.00 244.00 630.50 2350.00
2000 491.00 371.50 337.50 63.00 0.00 0.00 0.00 0.00 0.00 77.50 468.00 458.00 g 1808.50
2001 717.00 502.00 384.00 166.00 17.00 0.00 0.00 0.00 0.00 22.50 306.50 690.50 2805.50
2002 602.50 449.50 348.00 47.00 10.50 0.00 0.00 0.00 0.00 117.50 345.00 657.00 2577.00
2003 481.50 430.00 360.50 148.50 8.50 0.00 0.00 0.00 0.00 33.00 331.50 617.50 2411.00
2004 551.00 562.50 184.00 163.00 5.50 0.00 0.00 0.00 1.50 68.00 467.00 582.50 2585.00
2005 519.00 407.00 361.50 155.50 17.50 0.00 0.00 0.00 0.00 88.50 335.00 551.50 2435.50
2006 573.50 396.00 357.50 74.00 2.50 0.00 0.00 0.00 0.00 152.00 326.00 695.50 2577.00
2007 744.00 480.50 293.50 120.50 10.00 0.00 0.00 0.00 0.00 72.50 225.50 624.00 2570.50
2008 615.50 436.50 338.50 122.50 20.50 0.00 0.00 0.00 0.00 46.50 304.50 528.50 2413.00
2009 500.50 387.00 260.50 140.00 1.50 0.00 0.00 0.00 0.00 130.00 291.00 616.00 2326.50
2010 599.50 470.00 374.00 160.50 47.00 0.00 0.00 0.00 0.00 70.00 451.00 504.50 2676.50
2011 665.00 561.50 221.50 78.00 33.00 0.00 0.00 0.00 0.00 45.00 296.50 578.50 2479.00
2012 431.00 374.00 345.50 96.50 2.00 0.00 0.00 0.00 1.50 48.00 243.00 585.50 2127.00
2013 717.00 589.50 242.00 3.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 26.50 z 1548.50
Period of Record Statistics
MEAN 608.84 468.01 354.56 153.95 29.13 0.40 0.00 0.02 1.82 90.48 373.05 602.89 2686.29
S.D. 81.81 85.76 80.32 60.15 22.20 1.21 0.00 0.14 4.63 46.92 72.98 64.79 249.11
SKEW 0.35 0.25 0.18 0.46 1.06 4.00 0.00 6.26 2.98 0.35 0.21 0.22 -0.14
MAX 845.50 705.50 523.50 322.50 116.00 7.50 0.00 1.00 21.00 210.50 548.50 774.00 3333.00
MIN 431.00 258.00 184.00 43.00 0.00 0.00 0.00 0.00 0.00 2.50 225.50 467.00 2127.00
NO YRS 65 65 65 64 64 64 65 65 64 64 64 63 62