DOUGLAS SMELTER, ARIZONA

Monthly Total Heating Degree Days

(022669)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 197303
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
1903 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 639.00 639.00
1904 782.00 391.00 220.00 104.50 21.00 0.00 0.00 0.00 3.00 114.50 385.71 b 593.00 2614.71
1905 506.50 416.00 306.00 206.00 32.50 0.00 0.00 d 0.00 0.00 59.00 337.00 681.00 2544.00
1906 692.50 344.50 318.50 103.50 16.00 0.00 0.00 0.00 0.00 119.00 317.00 477.00 2388.00
1907 492.00 331.50 260.50 117.00 68.00 0.00 0.00 0.00 4.00 60.50 433.00 560.50 2327.00
1908 571.00 456.00 239.00 74.50 39.50 1.50 0.00 0.00 3.50 184.50 387.50 548.00 2505.00
1909 428.50 476.00 417.00 128.00 29.00 0.00 0.00 0.00 0.00 80.00 341.00 626.50 2526.00
1910 530.00 437.00 140.00 106.50 1.00 0.00 0.00 0.00 0.00 65.00 329.00 539.00 2147.50
1911 452.00 419.00 154.50 122.00 14.00 0.00 0.00 0.00 0.00 a 92.50 341.00 723.00 2318.00
1912 532.50 476.50 327.50 248.00 56.00 0.00 0.00 0.00 2.00 85.50 460.00 755.50 2943.50
1913 685.00 501.50 382.00 126.00 37.20 a 0.00 0.00 0.00 b 0.00 z 0.00 z 266.38 a 607.50 2605.58
1914 470.00 405.50 267.00 104.50 42.00 0.00 a 9.00 0.00 0.00 85.50 246.00 605.00 2234.50
1915 639.00 432.00 390.50 153.00 81.00 0.00 0.00 0.00 3.00 35.00 320.00 573.50 2627.00
1916 481.50 274.50 193.00 129.00 26.50 0.00 0.00 0.00 0.00 83.50 424.50 648.50 2261.00
1917 585.50 472.00 392.50 201.50 64.50 0.00 0.00 0.00 0.00 69.50 281.50 498.50 2565.50
1918 647.50 385.00 240.00 82.50 60.97 a 1.03 a 0.00 0.00 0.00 94.50 433.45 a 707.66 b 2652.60
1919 802.00 580.50 396.00 0.00 z 15.00 0.00 0.00 0.00 8.50 120.50 403.00 562.50 2888.00
1920 597.50 379.00 401.50 291.00 34.00 0.00 0.00 0.00 0.00 186.00 415.50 722.00 3026.50
1921 582.00 479.50 243.50 205.86 a 45.00 0.00 0.00 0.00 0.00 91.00 367.50 489.50 2503.86
1922 663.00 446.50 468.10 a 224.00 41.00 0.00 0.00 0.00 0.00 118.00 462.00 497.00 2919.60
1923 514.50 476.50 382.00 120.50 6.50 0.00 0.00 0.00 0.50 136.92 a 351.50 646.50 2635.42
1924 697.00 500.00 473.00 211.50 6.00 0.00 0.00 0.00 0.50 79.50 313.50 649.00 2930.00
1925 738.50 365.00 266.00 110.00 3.50 0.00 0.00 0.00 0.00 98.00 432.50 671.00 2684.50
1926 774.50 429.00 372.50 216.50 38.00 0.00 0.00 0.00 6.00 40.50 321.00 593.50 2791.50
1927 461.00 333.50 313.00 148.50 15.00 1.00 0.00 0.00 0.00 70.50 225.50 631.00 2199.00
1928 593.00 498.50 279.00 147.00 18.50 0.00 0.00 0.00 0.00 76.50 378.00 621.50 2612.00
1929 658.50 536.00 402.00 160.50 8.50 0.00 0.00 0.00 0.00 162.00 516.50 595.50 3039.50
1930 597.50 396.50 359.00 60.50 80.50 0.00 0.00 0.00 0.00 90.50 420.00 671.00 2675.50
1931 693.00 471.50 346.50 108.00 7.00 0.00 0.00 0.00 0.00 77.50 438.00 659.50 2801.00
1932 764.00 417.00 384.00 167.00 45.50 2.00 0.00 0.00 5.00 121.50 405.50 693.00 3004.50
1933 677.00 600.00 324.00 228.50 89.00 0.00 0.00 0.00 0.00 31.00 341.00 538.50 2829.00
1934 670.00 363.00 252.50 82.50 10.50 0.00 0.00 0.00 0.00 52.50 372.50 541.00 2344.50
1935 553.50 459.00 352.88 a 114.50 93.00 0.00 0.00 0.00 1.50 85.50 383.50 563.50 2606.88
1936 598.50 449.00 289.00 106.50 14.50 0.00 0.00 0.00 10.50 80.50 369.00 578.50 2496.00
1937 745.50 437.00 387.00 136.50 0.53 b 0.00 a 0.00 0.00 0.00 19.00 309.50 502.00 2537.03
1938 521.50 291.00 h 292.00 151.00 35.50 0.00 0.00 0.00 0.00 43.00 435.00 529.50 2007.50
1939 613.00 647.00 315.50 111.50 2.50 0.00 0.00 0.00 0.00 81.08 e 305.50 438.50 2514.58
1940 556.50 452.00 265.00 109.50 13.50 0.00 0.00 0.00 0.00 76.00 386.00 424.50 2283.00
1941 538.00 356.22 a 336.50 206.38 a 52.50 2.00 0.00 0.00 0.00 88.00 308.00 509.50 2397.10
1942 515.50 490.00 372.50 133.00 18.50 0.00 0.00 0.00 0.00 104.50 253.50 518.50 2406.00
1943 542.50 322.50 253.00 75.50 6.00 0.00 0.00 0.00 0.00 65.00 329.50 579.00 2173.00
1944 707.50 478.00 370.50 168.00 13.50 0.00 0.00 0.00 0.00 38.50 383.50 572.00 2731.50
1945 554.00 418.50 426.50 174.50 4.50 0.00 0.00 0.00 9.00 31.00 315.00 561.00 2494.00
1946 699.00 507.50 342.00 31.50 7.00 0.00 0.00 0.00 0.00 94.00 436.00 494.00 2611.00
1947 718.00 348.50 322.00 149.50 9.00 0.00 0.00 0.00 0.00 44.50 420.00 665.50 2677.00
1948 605.00 483.00 425.50 84.50 4.00 0.00 0.00 0.00 0.00 54.00 479.50 512.50 2648.00
1949 774.00 522.50 340.50 180.50 19.50 0.00 0.00 0.00 0.00 129.50 235.50 591.00 2793.00
1950 548.50 374.50 278.00 64.50 31.50 0.00 0.00 0.00 0.00 1.00 252.50 477.00 2027.50
1951 646.00 480.50 370.00 157.50 60.50 0.00 0.00 0.00 0.00 34.00 350.50 541.00 2640.00
1952 525.00 542.00 481.00 138.00 10.50 4.00 0.00 0.00 0.00 13.00 431.50 644.50 2789.50
1953 521.50 509.00 290.50 129.00 99.50 0.00 0.00 0.00 0.00 82.00 302.00 744.00 2677.50
1954 545.00 336.50 313.00 52.50 20.00 0.00 0.00 0.00 0.00 50.00 283.50 518.50 2119.00
1955 703.50 593.00 332.50 168.50 50.50 1.00 0.00 0.00 0.00 39.00 353.50 525.50 2767.00
1956 504.00 578.50 342.00 195.50 17.00 0.00 0.00 0.00 0.00 93.00 443.00 626.50 2799.50
1957 457.00 255.00 316.00 138.50 52.00 0.00 0.00 0.00 0.50 101.50 453.50 544.50 2318.50
1958 652.00 406.50 444.00 165.50 6.50 0.00 0.00 0.00 0.00 62.00 363.50 519.50 2619.50
1959 536.00 463.50 369.50 84.50 29.50 0.00 0.00 0.00 0.00 62.00 a 355.50 557.50 2458.00
1960 690.50 581.00 246.50 126.00 24.00 0.00 0.00 0.00 0.00 99.50 293.00 636.50 2697.00
1961 569.50 452.50 302.50 86.00 14.00 0.00 0.00 0.00 0.00 69.50 414.50 541.00 2449.50
1962 619.00 348.50 463.50 49.00 16.50 0.00 0.00 0.00 0.00 28.00 238.00 483.00 2245.50
1963 592.50 348.50 285.00 94.00 0.00 0.00 0.00 0.00 0.00 21.00 336.00 574.00 2251.00
1964 710.50 643.00 401.00 168.00 35.00 0.00 0.00 e 0.00 1.00 51.50 410.00 529.50 2949.50
1965 473.00 502.50 391.50 126.00 38.50 0.00 0.00 0.00 10.50 49.00 j 116.50 s 563.50 2105.50
1966 715.50 612.00 336.50 124.50 0.00 z 0.00 0.00 0.00 0.00 a 94.00 299.50 627.48 b 2809.48
1967 622.00 419.00 226.00 147.50 36.50 0.00 0.00 b 0.00 b 0.00 72.50 297.86 b 635.50 2456.86
1968 587.50 334.04 b 340.45 c 183.00 21.38 b 0.00 0.00 a 0.00 c 0.00 e 51.50 365.17 a 642.50 2525.54
1969 485.87 e 466.50 455.18 a 85.56 c 56.32 a 0.00 0.00 0.00 a 0.00 a 101.00 379.50 527.00 a 2556.92
1970 633.00 393.04 a 392.15 a 241.50 24.50 0.00 0.00 0.00 12.00 137.00 304.50 475.00 2612.69
1971 546.00 463.00 284.00 191.00 23.50 4.00 0.00 0.00 0.50 138.00 332.50 578.50 2561.00
1972 581.50 448.50 150.50 128.50 12.40 a 0.00 0.00 0.00 0.00 100.23 a 462.50 561.00 2445.13
1973 662.00 468.50 286.50 k 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 1130.50
Period of Record Statistics
MEAN 604.96 447.54 330.61 139.20 29.81 0.24 0.13 0.00 1.20 79.35 360.85 581.11 2562.27
S.D. 93.11 84.23 77.58 52.53 24.31 0.78 1.08 0.00 2.83 38.15 66.69 74.01 236.17
SKEW 0.19 0.22 -0.28 0.45 1.05 3.74 8.12 0.00 2.57 0.52 -0.02 0.29 -0.03
MAX 802.00 647.00 481.00 291.00 99.50 4.00 9.00 0.00 12.00 186.00 516.50 755.50 3039.50
MIN 428.50 255.00 140.00 31.50 0.00 0.00 0.00 0.00 0.00 1.00 225.50 424.50 2027.50
NO YRS 70 69 69 68 68 69 69 69 68 67 68 70 64