TOMBSTONE, ARIZONA

Monthly Total Cooling 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 440.00 351.00 0.00 z 0.00 z 0.00 z 0.00 z 791.00
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 0.00 r 0.00 g 47.00 242.00 381.50 395.50 326.50 212.50 51.50 0.00 0.00 1656.50
1898 0.00 0.00 0.00 64.50 113.50 370.00 375.50 331.50 246.50 93.00 1.00 0.00 1595.50
1899 0.00 0.00 0.00 c 34.50 110.50 328.00 378.50 368.00 354.00 0.00 z 0.00 z 0.00 z 1573.50
1900 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 518.50 415.50 218.50 60.50 0.00 0.00 1213.00
1901 0.00 0.00 0.00 36.00 153.00 372.50 499.00 364.50 297.00 73.00 0.00 0.00 1795.00
1902 0.00 0.00 0.00 48.50 168.50 457.50 403.50 332.00 242.50 95.50 0.00 z 0.00 z 1748.00
1903 0.00 z 0.00 z 0.00 z 23.00 m 106.00 345.00 439.00 411.02 b 225.00 38.50 2.00 0.00 k 1566.52
1904 0.00 0.00 z 0.00 z 40.50 j 169.00 396.00 408.50 254.50 152.00 48.50 0.00 0.00 1428.50
1905 0.00 0.00 0.00 4.00 78.50 354.00 402.00 322.50 189.50 43.50 0.00 0.00 1394.00
1906 0.00 0.00 0.00 5.50 99.00 394.00 384.50 220.00 195.00 47.00 0.50 0.00 1345.50
1907 0.00 0.00 11.50 34.00 64.00 276.00 400.00 252.50 184.00 18.50 0.00 0.00 1240.50
1908 0.00 1.00 15.50 34.50 85.50 346.50 377.50 358.00 268.50 83.00 1.50 0.00 1571.50
1909 0.00 0.00 0.00 21.00 71.00 373.50 418.00 307.00 188.50 60.00 9.50 0.00 1448.50
1910 0.00 0.00 15.00 65.50 209.50 368.00 397.50 389.00 295.00 52.50 0.00 0.00 1792.00
1911 0.00 0.00 3.00 13.50 173.00 382.50 366.00 438.50 298.00 28.50 0.00 0.00 1703.00
1912 0.00 0.00 0.00 14.50 170.50 409.00 345.50 324.50 260.00 20.00 0.50 0.00 1544.50
1913 0.00 0.00 5.00 33.50 196.50 351.50 415.00 392.00 258.00 42.50 0.00 0.00 1694.00
1914 0.00 0.00 4.00 44.50 235.00 398.00 346.00 422.50 308.50 21.00 0.00 0.00 1779.50
1915 0.00 0.00 0.00 17.00 129.50 403.00 445.00 441.00 271.00 135.00 19.00 0.00 1860.50
1916 0.00 0.00 34.00 72.50 149.50 440.50 437.50 359.50 273.00 66.50 15.50 0.00 1848.50
1917 0.00 0.00 4.50 25.50 59.50 453.00 497.00 498.67 b 351.00 230.36 b 0.00 z 0.00 z 2119.53
1918 0.00 z 0.00 z 2.00 5.00 100.00 453.50 442.50 392.00 352.00 153.50 10.50 0.00 1911.00
1919 0.00 0.00 0.00 63.00 149.50 404.50 334.50 375.50 202.00 7.50 0.00 4.00 1540.50
1920 0.00 0.00 0.00 3.00 165.00 350.50 524.00 0.00 z 250.50 74.50 0.00 0.00 1367.50
1921 0.00 0.00 1.00 23.50 148.00 405.00 389.00 329.00 287.50 144.50 0.00 0.00 1727.50
1922 0.00 0.00 0.50 26.50 200.00 453.00 439.00 414.50 291.50 128.50 0.00 0.00 1953.50
1923 0.00 0.00 0.00 2.00 248.00 412.00 448.00 234.00 99.50 17.00 0.00 0.00 1460.50
1924 0.00 0.00 0.00 2.50 144.50 479.50 437.00 448.50 332.00 77.50 13.00 0.00 1934.50
1925 0.00 0.00 5.00 62.50 211.50 300.00 401.50 280.50 241.00 72.00 0.00 0.00 1574.00
1926 0.00 0.00 0.00 18.50 127.00 420.50 446.00 401.50 289.50 59.00 0.00 z 0.00 1762.00
1927 0.00 0.00 0.00 59.00 226.00 374.50 445.00 315.00 223.00 54.00 7.00 0.00 1703.50
1928 0.00 0.00 0.50 41.00 193.50 389.50 498.00 355.00 310.50 102.50 0.00 0.00 1890.50
1929 0.00 0.00 0.00 4.50 144.50 440.50 460.00 340.00 296.00 122.50 0.00 0.00 1808.00
1930 0.00 0.00 0.00 51.00 113.50 381.00 364.50 380.00 223.00 44.00 0.00 0.00 1557.00
1931 0.00 0.00 2.00 10.50 164.00 377.00 462.50 298.00 234.00 83.00 7.50 0.00 1638.50
1932 0.00 0.00 0.00 28.50 140.50 371.00 424.00 397.50 285.00 e 62.50 0.00 0.00 1709.00
1933 0.00 0.00 a 0.00 0.50 113.00 369.50 457.00 389.50 300.50 49.00 0.00 0.00 1679.00
1934 0.00 0.00 6.50 f 67.00 282.00 337.00 477.00 319.00 233.00 f 154.00 18.50 0.00 1654.50
1935 0.00 0.00 0.00 a 26.00 89.50 422.00 493.50 331.00 203.50 115.00 0.00 0.00 1680.50
1936 0.00 0.00 0.00 84.00 246.50 459.50 486.00 407.00 165.50 f 76.00 0.00 0.00 1759.00
1937 0.00 0.00 0.00 35.50 201.00 370.50 470.50 420.50 309.50 98.50 0.00 0.00 1906.00
1938 0.00 0.00 0.00 50.50 153.50 420.00 333.00 f 394.50 251.00 100.00 0.00 0.00 1369.50
1939 0.00 0.00 4.00 37.50 171.00 421.50 429.50 335.50 211.00 17.50 4.00 0.00 z 1631.50
1940 0.00 0.00 2.00 20.50 135.50 323.00 413.00 0.00 z 265.50 97.50 0.00 0.00 1257.00
1941 0.00 0.00 1.00 7.00 230.00 362.00 441.00 394.98 b 278.00 49.50 0.00 0.00 1763.48
1942 0.00 b 0.00 0.00 17.50 240.00 428.50 547.00 420.00 321.43 b 77.00 2.50 h 0.00 2051.43
1943 0.00 0.00 5.00 122.00 231.50 401.00 475.50 383.50 307.50 59.50 0.00 0.00 1985.50
1944 0.00 0.00 h 0.00 5.00 150.50 357.50 452.50 424.00 228.50 106.00 3.00 0.00 1727.00
1945 0.00 0.00 0.00 46.00 185.50 339.00 456.50 426.50 294.00 86.00 8.00 0.00 1841.50
1946 0.00 0.00 6.00 91.50 143.00 504.50 446.00 387.00 315.00 30.50 0.00 0.00 1923.50
1947 0.00 z 0.00 z 3.00 k 17.50 219.00 324.50 485.00 407.00 365.36 b 115.00 0.00 0.00 1933.36
1948 0.00 0.00 0.00 89.00 222.50 462.00 519.50 383.00 288.00 86.50 0.00 0.00 a 2050.50
1949 0.00 0.00 0.00 z 0.00 z 218.00 349.50 410.00 484.50 348.50 0.00 z 0.00 0.00 1810.50
1950 0.00 0.50 12.00 72.50 141.50 366.50 342.50 0.00 z 283.50 326.00 81.50 0.00 c 1626.50
1951 0.00 0.00 z 0.00 z 0.00 0.00 z 333.00 485.00 0.00 z 0.00 z 140.00 0.00 0.00 958.00
1952 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1953 0.00 z 0.00 z 25.00 28.50 107.00 462.00 465.50 404.00 361.50 139.00 2.00 0.00 1994.50
1954 0.00 b 0.00 0.00 110.00 c 225.61 d 397.00 362.50 h 289.50 346.00 149.50 0.50 2.50 1520.61
1955 0.00 r 0.00 0.00 6.50 135.37 a 375.50 402.50 317.00 318.50 151.50 0.00 0.00 1706.87
1956 0.00 0.00 4.50 12.50 237.50 461.50 402.00 350.50 388.50 141.00 0.00 0.00 1998.00
1957 0.00 8.50 0.00 10.00 81.00 425.50 479.00 359.50 283.50 48.50 0.00 0.00 1695.50
1958 0.00 0.00 0.00 32.50 288.00 453.50 459.00 358.00 254.00 42.50 0.00 0.00 1887.50
1959 0.00 0.00 0.00 70.50 146.00 465.50 428.50 313.00 293.00 91.00 0.00 0.00 1807.50
1960 0.00 0.00 6.50 50.00 165.00 448.50 439.50 411.00 323.00 42.00 4.00 0.00 1889.50
1961 0.00 0.00 1.00 60.00 213.50 457.76 a 466.00 354.00 240.50 68.00 0.00 0.00 1860.76
1962 0.00 1.50 1.00 101.50 128.00 341.00 372.00 491.50 306.00 111.50 11.00 0.00 1865.00
1963 0.00 8.00 3.00 2.50 244.50 344.50 492.00 347.00 310.50 134.50 3.00 0.00 j 1889.50
1964 0.00 0.00 3.00 19.00 191.50 358.00 428.00 347.50 260.69 a 130.00 3.62 a 0.00 1741.31
1965 0.00 0.00 0.50 66.50 132.50 258.00 416.50 399.00 251.00 116.00 1.50 0.00 1641.50
1966 0.00 0.00 1.50 19.50 188.50 379.50 440.50 340.00 208.50 53.50 1.50 0.00 1633.00
1967 0.00 0.00 18.00 5.00 101.50 296.00 412.19 d 354.00 208.00 50.50 1.00 0.00 1446.19
1968 0.00 0.00 0.00 0.50 117.50 421.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 539.00
1969 0.00 z 0.00 z 4.00 25.00 215.00 361.00 433.50 464.50 303.50 67.00 0.00 0.00 1873.50
1970 0.00 0.00 0.00 2.00 192.50 417.50 512.00 436.00 270.50 25.00 0.00 0.00 1855.50
1971 2.00 0.00 a 23.00 30.00 117.00 410.00 561.50 379.00 323.00 36.50 7.00 0.00 1889.00
1972 0.00 4.00 32.50 46.50 132.50 368.00 514.00 405.50 283.00 112.50 0.50 0.00 1899.00
1973 0.00 0.00 0.00 18.00 176.00 401.50 466.00 456.00 342.50 120.50 23.50 0.00 2004.00
1974 0.00 0.00 5.50 41.38 a 219.50 534.00 423.50 368.00 219.00 75.50 0.00 0.00 1886.38
1975 0.00 0.00 0.00 4.50 100.00 365.00 388.50 480.50 244.50 84.00 4.00 0.00 1671.00
1976 0.00 0.00 0.00 3.50 101.00 355.50 364.00 368.00 171.50 14.00 0.00 0.00 a 1377.50
1977 0.00 0.00 0.00 47.00 122.50 446.50 436.00 416.50 279.50 53.50 0.00 0.00 1801.50
1978 0.00 a 0.00 10.00 18.00 175.50 499.50 540.50 407.50 266.00 146.00 1.00 0.00 2064.00
1979 0.00 0.00 0.00 31.00 99.50 340.50 497.50 359.50 333.00 160.00 0.00 0.00 1821.00
1980 0.00 0.00 0.00 44.50 96.00 515.50 536.50 402.00 322.00 111.50 5.50 0.00 2033.50
1981 0.00 0.00 0.00 43.00 102.50 458.00 421.00 394.50 276.00 28.00 2.00 0.00 1725.00
1982 0.00 0.50 1.00 23.00 133.00 372.00 437.00 393.50 333.00 89.50 0.00 0.00 1782.50
1983 0.00 0.00 0.00 7.00 160.00 324.50 442.50 427.50 373.50 11.00 0.00 0.00 1746.00
1984 0.00 0.00 0.00 24.50 296.50 347.50 400.50 342.50 288.50 14.98 a 4.00 0.00 1718.98
1985 0.00 a 0.00 1.50 46.00 175.50 436.50 479.50 412.50 212.00 41.85 a 0.00 0.00 1805.35
1986 0.00 4.00 21.00 67.50 237.00 428.00 398.00 423.00 239.00 23.50 2.00 0.00 1843.00
1987 0.00 0.00 0.00 35.00 89.50 419.00 494.00 344.50 226.50 149.00 0.50 0.00 a 1758.00
1988 0.00 0.00 18.00 17.00 226.00 426.50 465.00 340.00 195.00 80.00 7.50 0.00 1775.00
1989 0.00 1.50 33.00 180.00 300.50 452.00 505.50 388.50 318.50 76.00 0.00 0.00 2255.50
1990 0.00 0.00 4.50 39.50 127.00 531.50 380.00 273.50 266.00 48.00 0.00 0.00 1670.00
1991 0.00 0.00 0.00 7.50 145.00 272.50 424.00 427.50 263.00 163.00 0.50 0.00 1703.00
1992 0.00 0.00 0.00 81.00 121.00 344.00 397.50 327.50 298.00 90.50 0.00 0.00 1659.50
1993 0.00 0.00 0.00 51.50 228.50 448.50 456.00 422.50 317.00 112.50 0.00 0.00 2036.50
1994 0.00 0.00 1.00 72.00 202.00 504.50 468.00 404.50 246.00 47.00 0.00 0.00 1945.00
1995 0.00 0.00 0.00 9.00 93.50 349.00 507.50 473.00 305.50 148.00 5.00 0.00 1890.50
1996 0.00 0.00 0.00 73.50 305.00 509.00 512.50 421.50 238.50 159.00 10.00 0.00 2229.00
1997 0.00 0.00 12.50 35.00 279.50 423.00 538.50 447.50 399.00 116.50 10.50 0.00 2262.00
1998 0.00 0.00 9.82 a 24.00 171.50 368.50 498.50 450.50 365.00 110.00 0.00 0.00 1997.82
1999 0.50 0.00 9.00 51.00 208.00 387.00 384.50 350.50 282.50 128.00 21.00 0.00 b 1822.00
2000 0.00 0.00 0.52 a 101.00 331.00 424.50 510.50 404.50 391.00 96.00 0.00 0.00 a 2259.02
2001 0.00 0.00 4.50 46.00 i 284.50 487.78 c 434.60 e 430.68 c 369.50 119.50 11.25 b 0.00 2142.30
2002 0.00 0.00 1.50 90.50 173.50 510.50 465.50 392.00 314.50 47.00 0.00 0.00 1995.00
2003 0.00 0.00 0.00 20.50 226.50 426.00 545.00 423.00 312.60 e 169.90 e 1.00 0.00 2124.50
2004 0.00 0.00 22.00 16.00 178.00 381.00 426.00 375.00 252.00 46.00 0.00 0.00 1696.00
2005 0.00 0.00 0.00 31.00 213.00 0.00 z 540.00 320.00 318.00 88.50 0.00 z 0.00 1510.50
2006 0.00 0.00 2.50 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 2.50
2007 0.00 0.00 14.50 20.50 185.50 460.50 442.00 373.00 284.00 104.00 19.50 0.00 1903.50
2008 0.00 0.00 0.00 z 52.24 a 118.50 442.00 380.78 a 379.50 269.00 120.50 9.50 0.00 1772.02
2009 0.00 10.00 17.50 40.00 266.50 345.50 508.50 485.50 313.50 87.50 0.00 z 0.00 z 2074.50
2010 0.00 0.00 4.00 33.50 172.50 470.00 487.00 428.50 378.50 119.00 1.00 0.00 2094.00
2011 0.00 0.00 8.27 a 77.00 143.24 b 503.00 458.80 a 462.50 371.38 a 111.50 5.00 0.00 a 2140.69
2012 0.00 0.00 23.00 152.00 293.00 540.00 446.92 a 478.00 293.00 151.38 a 19.00 0.00 2396.30
2013 0.00 a 0.00 25.32 a 1.00 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 25.32
Period of Record Statistics
MEAN 0.02 0.37 4.74 38.85 172.05 402.81 445.75 381.31 279.97 87.09 3.79 0.06 1806.52
S.D. 0.20 1.57 8.09 32.69 61.08 59.18 51.00 56.06 55.66 50.09 9.36 0.45 218.43
SKEW 9.53 4.84 2.02 1.47 0.39 0.15 0.09 -0.35 -0.25 1.14 5.81 7.66 0.08
MAX 2.00 10.00 34.00 180.00 331.00 540.00 561.50 498.67 399.00 326.00 81.50 4.00 2396.30
MIN 0.00 0.00 0.00 0.00 59.50 258.00 334.50 220.00 99.50 7.50 0.00 0.00 1240.50
NO YRS 109 106 107 109 112 112 112 110 110 111 106 107 83