TOMBSTONE, ARIZONA

Monthly Total Heating Degree Days

(028619)

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
1893 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 35.50 0.00 0.00 z 0.00 z 0.00 z 0.00 z 35.50
1894 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
1895 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
1896 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
1897 0.00 z 164.00 r 341.50 g 84.00 13.50 0.00 0.00 0.00 0.00 163.50 231.00 628.00 1120.00
1898 743.00 341.00 422.50 104.00 37.50 0.00 0.00 0.00 0.00 39.50 365.50 706.00 2759.00
1899 636.00 513.00 322.73 c 98.50 49.00 27.50 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 1646.73
1900 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 12.00 63.50 270.50 514.50 860.50
1901 524.00 499.50 358.00 198.50 28.50 0.00 0.00 0.00 0.00 86.50 252.50 538.00 2485.50
1902 540.00 419.00 451.50 53.50 29.50 0.00 0.00 0.00 2.00 14.00 0.00 z 0.00 z 1509.50
1903 0.00 z 0.00 z 0.00 z 70.00 m 28.00 2.00 0.00 0.00 b 3.50 43.00 163.00 337.50 k 239.50
1904 374.00 0.00 z 0.00 z 49.00 j 33.50 0.00 0.00 0.00 3.50 170.50 342.00 587.00 1510.50
1905 521.00 499.00 428.50 253.00 71.00 0.00 0.00 0.00 9.00 95.50 434.50 762.00 3073.50
1906 668.50 456.00 343.00 160.50 33.50 0.50 0.00 0.00 0.00 130.50 358.50 556.00 2707.00
1907 579.50 371.00 265.00 137.50 77.50 2.00 0.00 0.00 7.50 94.00 453.50 504.50 2492.00
1908 581.00 420.00 198.50 84.50 53.00 0.50 0.00 0.00 3.50 126.00 314.50 571.00 2352.50
1909 372.50 439.00 426.50 120.00 35.50 0.00 0.00 0.00 0.00 45.50 295.50 613.50 2348.00
1910 522.00 464.00 175.00 120.50 0.00 0.00 0.00 0.00 0.00 86.00 284.50 481.50 2133.50
1911 418.50 490.00 172.00 86.50 4.50 0.00 0.00 0.00 0.00 110.00 424.00 777.50 2483.00
1912 535.00 471.00 400.50 249.00 56.00 0.00 0.00 0.00 0.00 140.50 346.50 689.00 2887.50
1913 673.00 509.00 387.00 95.50 21.00 0.00 0.00 0.00 0.00 34.00 284.00 645.00 2648.50
1914 453.00 405.00 272.00 74.00 22.00 0.00 0.00 0.00 0.00 119.00 279.00 659.50 2283.50
1915 644.50 480.50 414.50 156.50 103.00 0.50 0.00 0.00 1.00 13.00 301.00 582.00 2696.50
1916 535.50 271.50 211.50 133.50 24.00 0.00 0.00 0.00 0.00 90.50 321.50 636.00 2224.00
1917 611.50 453.00 381.00 162.00 95.00 0.50 0.00 0.00 b 0.00 17.10 b 0.00 z 0.00 z 1720.10
1918 0.00 z 0.00 z 236.00 122.50 51.50 0.00 0.00 0.00 0.00 89.50 422.00 632.00 1553.50
1919 655.50 557.00 380.50 125.00 28.50 2.00 0.00 0.00 7.00 110.00 366.50 442.50 2674.50
1920 568.50 385.00 370.00 244.50 9.00 0.00 0.00 0.00 z 0.00 165.50 297.50 562.50 2602.50
1921 480.00 381.50 201.50 162.00 30.00 0.00 0.00 0.00 0.00 58.00 218.00 419.50 1950.50
1922 609.00 383.50 379.00 217.00 30.00 0.00 0.00 0.00 0.00 90.50 415.00 395.50 2519.50
1923 363.50 476.50 393.00 132.50 5.00 0.00 0.00 0.00 12.00 165.50 357.00 653.50 2558.50
1924 623.00 379.00 465.50 203.00 0.00 0.00 0.00 0.00 0.00 39.50 212.00 604.00 2526.00
1925 600.00 303.50 200.50 94.00 0.00 0.00 0.00 0.00 0.00 111.00 380.00 608.50 2297.50
1926 712.00 360.00 360.50 236.00 52.50 0.00 0.00 0.00 6.50 45.00 0.00 z 647.00 2419.50
1927 362.00 315.50 323.00 159.00 27.50 2.50 0.00 0.00 0.00 48.00 152.00 667.50 2057.00
1928 489.00 457.00 231.00 141.50 24.50 0.50 0.00 0.00 0.00 70.00 381.50 562.50 2357.50
1929 617.00 532.50 399.50 151.00 8.00 0.00 0.00 0.00 0.00 130.50 398.00 400.50 2637.00
1930 595.00 302.00 375.00 70.50 117.00 0.00 0.00 0.00 0.00 67.00 403.50 623.50 2553.50
1931 598.50 459.00 331.00 98.00 3.00 0.00 0.00 0.00 0.00 50.50 434.50 601.00 2575.50
1932 726.00 397.50 356.50 128.00 34.50 5.00 0.00 0.00 5.40 e 77.00 222.00 630.50 2582.40
1933 612.00 555.85 a 279.50 204.50 110.50 0.00 0.00 0.00 0.00 21.50 244.50 411.50 2439.85
1934 568.50 315.00 129.50 f 72.00 8.50 0.00 0.00 0.00 0.00 f 23.50 307.00 437.50 1732.00
1935 459.50 448.00 324.47 a 107.00 90.00 0.00 0.00 0.00 3.50 68.00 320.50 539.50 2360.47
1936 534.00 469.50 281.50 108.00 11.50 0.00 0.00 0.00 7.50 f 39.50 316.50 529.00 2289.50
1937 781.50 420.50 363.00 135.00 7.50 0.00 0.00 0.00 0.00 30.00 237.50 480.00 2455.00
1938 473.00 397.00 348.00 148.00 49.00 0.00 0.00 f 0.00 0.00 32.00 342.50 430.50 2220.00
1939 568.00 630.50 290.00 87.00 3.50 0.00 0.00 0.00 0.00 104.00 320.50 0.00 z 2003.50
1940 541.50 505.50 252.00 136.00 12.00 0.00 0.00 0.00 z 0.00 71.50 355.50 417.50 2291.50
1941 569.50 391.50 336.00 228.50 59.00 0.00 0.00 0.00 b 2.00 97.50 263.50 516.00 2463.50
1942 481.03 b 482.50 365.00 150.00 16.50 0.00 0.00 0.00 0.00 b 91.50 98.50 h 460.00 2046.53
1943 479.50 315.00 254.50 88.50 4.00 0.00 0.00 0.00 0.00 78.00 280.00 571.50 2071.00
1944 628.50 382.00 h 426.50 187.00 11.50 0.00 0.00 0.00 0.00 57.00 421.50 544.00 2276.00
1945 574.50 407.50 449.50 193.50 1.00 0.00 0.00 0.00 17.50 24.00 260.00 593.50 2521.00
1946 710.50 469.00 317.50 29.00 2.50 0.00 0.00 0.00 0.00 97.00 401.00 437.00 2463.50
1947 0.00 z 0.00 z 138.00 k 139.50 10.00 0.00 0.00 0.00 0.00 b 35.50 408.50 689.00 1282.50
1948 527.00 485.00 450.00 59.50 2.00 0.00 0.00 0.00 0.00 77.50 330.00 556.97 a 2487.97
1949 863.50 498.00 0.00 z 0.00 z 0.50 0.00 0.00 0.00 0.00 0.00 z 148.50 569.50 2080.00
1950 448.00 236.00 203.50 19.50 8.50 0.00 0.00 0.00 z 0.00 0.00 171.50 260.18 c 1347.18
1951 456.50 0.00 z 0.00 z 219.00 0.00 z 0.00 0.00 0.00 z 0.00 z 45.00 296.50 537.50 1554.50
1952 445.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 445.50
1953 0.00 z 0.00 z 282.00 149.00 111.50 0.00 0.00 0.00 0.00 21.00 221.00 578.50 1363.00
1954 437.21 b 273.50 333.00 25.56 c 0.00 d 0.00 0.00 h 0.00 0.00 20.50 193.50 464.00 1747.26
1955 245.00 r 542.00 298.00 157.00 51.67 a 0.00 0.00 0.00 0.00 18.00 257.50 353.50 1677.67
1956 391.50 548.50 238.00 152.00 3.00 0.00 0.00 0.00 0.00 60.00 367.00 504.50 2264.50
1957 457.50 205.50 310.00 150.00 59.50 0.00 0.00 0.00 0.00 104.50 444.50 419.00 2150.50
1958 592.50 376.00 480.00 180.00 4.00 0.00 0.00 0.00 0.00 71.00 312.50 358.00 2374.00
1959 421.50 437.00 305.00 68.00 24.00 0.00 0.00 0.00 0.00 74.00 350.00 533.50 2213.00
1960 671.50 568.00 204.50 116.50 25.50 0.00 0.00 0.00 0.00 83.50 219.50 557.50 2446.50
1961 517.50 392.50 325.00 93.00 27.50 0.00 a 0.00 0.00 0.00 74.00 396.00 534.50 2360.00
1962 615.50 344.00 447.50 51.50 29.50 0.00 0.00 0.00 0.00 30.00 173.00 441.00 2132.00
1963 509.00 310.50 343.50 164.50 0.00 0.00 0.00 0.00 0.00 6.00 307.00 326.50 j 1640.50
1964 594.00 583.50 439.00 208.50 72.50 0.00 0.00 0.00 0.52 a 15.00 359.48 a 488.00 2760.50
1965 444.50 475.00 412.00 164.00 44.00 1.50 0.00 0.00 3.00 24.50 133.50 481.50 2183.50
1966 621.50 566.50 275.50 78.50 6.00 0.00 0.00 0.00 0.00 41.50 200.50 504.50 2294.50
1967 476.50 347.00 145.00 188.00 44.50 3.50 0.00 d 0.00 2.00 33.50 218.50 631.50 2090.00
1968 521.00 312.50 373.50 237.50 36.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1480.50
1969 0.00 z 0.00 z 488.00 89.00 54.50 0.00 0.00 0.00 0.00 91.50 358.00 480.50 1561.50
1970 585.00 369.50 433.00 233.50 37.00 0.00 0.00 0.00 16.50 99.00 219.00 424.00 2416.50
1971 468.50 416.37 a 234.00 146.00 29.00 0.00 0.00 0.00 1.50 128.00 254.50 600.50 2278.37
1972 494.50 325.00 105.50 86.50 0.00 0.00 0.00 0.00 0.00 116.50 410.00 531.00 2069.00
1973 621.50 417.00 468.00 244.00 33.00 0.00 0.00 0.00 0.00 36.50 247.00 458.00 2525.00
1974 504.50 451.00 214.00 92.07 a 8.50 0.00 0.00 0.00 7.50 124.50 306.00 658.50 2366.57
1975 536.00 470.50 396.00 263.50 54.50 0.00 0.00 0.00 0.00 56.50 291.50 517.50 2586.00
1976 557.50 369.00 363.50 171.00 31.50 0.00 0.00 0.00 1.50 182.00 392.50 603.47 a 2671.97
1977 618.00 396.00 429.00 133.00 24.00 0.00 0.00 0.00 0.00 35.00 239.00 389.50 2263.50
1978 534.23 a 489.50 267.00 117.50 43.00 0.00 0.00 0.00 0.00 70.00 295.50 640.50 2457.23
1979 710.00 426.00 389.00 145.50 64.00 0.50 0.00 0.00 11.50 56.00 400.00 499.50 2702.00
1980 490.00 344.00 382.50 154.50 29.00 0.00 0.00 0.00 0.00 155.00 305.00 393.00 2253.00
1981 568.50 427.50 460.00 87.00 10.50 0.00 0.00 0.00 0.00 81.00 195.50 381.50 2211.50
1982 525.50 367.00 270.50 96.00 25.50 0.00 0.00 0.00 0.50 49.50 322.50 571.00 2228.00
1983 544.00 402.50 387.00 262.50 41.00 0.00 0.00 0.00 3.50 71.00 357.50 454.50 2523.50
1984 548.50 454.00 264.00 176.50 9.00 0.00 0.00 0.00 0.00 129.68 a 318.50 494.00 2394.18
1985 652.55 a 473.50 310.50 94.50 12.50 2.00 0.00 0.00 13.00 67.68 a 326.50 470.00 2422.73
1986 390.50 323.50 218.50 50.50 15.00 0.00 0.00 0.00 9.50 67.50 300.50 549.50 1925.00
1987 574.00 468.00 404.50 84.50 22.50 0.00 0.00 0.00 0.00 4.00 324.50 548.18 a 2430.18
1988 559.00 332.50 300.50 131.00 38.00 0.00 0.00 0.00 0.00 22.00 323.50 583.00 2289.50
1989 593.00 312.50 162.50 12.50 17.50 0.00 0.00 0.00 0.00 82.00 271.50 533.50 1985.00
1990 549.50 502.00 290.50 92.00 31.50 0.00 0.00 1.00 0.00 33.00 281.50 593.50 2374.50
1991 557.50 369.00 427.50 127.00 16.50 6.50 0.00 0.00 1.00 85.00 318.50 558.00 2466.50
1992 645.50 390.00 348.00 105.00 20.50 0.00 0.00 0.00 0.00 20.00 444.00 577.50 2550.50
1993 506.50 463.50 269.50 83.50 1.00 0.00 0.00 0.00 0.00 74.50 304.50 450.50 2153.50
1994 427.00 392.00 226.00 90.50 12.50 0.00 0.00 0.00 0.00 75.50 403.50 535.00 2162.00
1995 587.50 290.50 291.50 214.50 69.50 0.00 0.00 0.00 0.00 13.00 126.00 449.50 2042.00
1996 441.00 302.50 288.50 101.00 8.00 0.00 0.00 0.00 0.00 138.00 221.50 423.50 1924.00
1997 546.00 407.50 161.00 175.00 0.00 0.00 0.00 0.00 0.00 105.00 193.50 637.00 2225.00
1998 451.00 503.50 334.80 a 230.50 18.50 3.00 0.00 0.00 0.00 51.00 229.00 513.50 2334.80
1999 440.50 274.50 182.00 179.50 17.50 0.00 0.00 0.00 0.00 53.00 129.50 531.28 b 1807.78
2000 383.50 316.50 275.38 a 63.00 0.00 0.00 0.00 0.00 0.00 135.00 484.50 426.25 a 2084.13
2001 635.50 423.50 308.00 88.50 i 9.00 0.00 c 0.00 e 0.00 c 0.00 11.00 238.93 b 568.00 2193.93
2002 491.50 388.00 325.00 48.00 9.00 0.00 0.00 0.00 0.00 103.50 256.50 597.50 2219.00
2003 355.50 421.50 383.00 160.50 22.00 0.00 0.00 0.00 2.40 e 29.81 e 318.00 516.50 2209.21
2004 558.00 563.50 199.00 175.50 9.00 0.00 0.00 0.00 5.00 72.00 462.50 603.00 2647.50
2005 523.50 469.00 365.50 125.00 12.50 0.00 z 0.00 0.00 0.00 60.50 0.00 z 429.00 1985.00
2006 472.00 330.50 339.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 589.50 1731.00
2007 699.00 432.00 304.50 125.50 13.00 3.00 0.00 0.00 0.00 48.00 153.50 601.00 2379.50
2008 574.00 411.50 0.00 z 74.48 a 46.00 0.00 0.00 a 0.00 0.00 30.50 267.00 454.50 1857.98
2009 391.00 307.00 203.50 130.00 4.50 0.50 0.00 0.00 0.00 118.00 0.00 z 0.00 z 1154.50
2010 539.50 456.00 406.50 137.00 52.50 0.00 0.00 0.00 0.00 38.50 298.00 339.00 2267.00
2011 529.50 465.50 171.53 a 71.00 22.98 b 0.00 0.00 a 0.00 0.00 a 58.50 307.00 596.23 a 2222.25
2012 374.00 342.00 240.00 70.00 4.50 0.00 0.00 a 0.00 0.50 11.37 a 233.00 472.50 1747.87
2013 645.32 a 559.00 150.35 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 21.00 z 1354.67
Period of Record Statistics
MEAN 544.26 418.06 319.84 133.95 28.43 0.57 0.32 0.01 1.59 69.90 302.73 532.48 2363.98
S.D. 97.39 84.03 89.35 58.29 26.51 2.76 3.35 0.10 3.60 42.37 82.87 93.77 241.79
SKEW 0.29 -0.01 -0.21 0.32 1.37 8.59 10.44 10.34 2.66 0.55 -0.06 -0.09 0.00
MAX 863.50 630.50 488.00 263.50 117.00 27.50 35.50 1.00 17.50 182.00 484.50 777.50 3073.50
MIN 355.50 205.50 105.50 12.50 0.00 0.00 0.00 0.00 0.00 0.00 126.00 260.18 1747.87
NO YRS 109 106 107 109 112 112 112 110 110 111 106 107 83