CLIFTON, ARIZONA

Monthly Total Heating Degree Days

(021849)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201211
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 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
1898 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
1899 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
1900 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
1901 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
1902 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
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 0.00 z 0.00
1904 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
1905 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
1906 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
1907 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
1908 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 304.50 551.00 855.50
1909 410.00 411.50 358.50 65.50 0.50 0.00 0.00 0.00 0.00 20.00 297.50 685.00 2248.50
1910 564.00 413.50 66.00 40.00 0.00 0.00 0.00 0.00 0.00 28.50 269.50 572.50 1954.00
1911 493.00 389.50 106.00 36.00 2.00 0.00 0.00 0.00 0.00 49.00 396.00 761.50 2233.00
1912 649.00 453.00 269.00 128.00 4.50 0.00 0.00 0.00 0.00 51.00 387.00 730.00 2671.50
1913 765.00 447.00 312.50 66.00 6.00 0.00 0.00 0.00 1.50 29.00 222.50 672.00 2521.50
1914 535.50 387.00 198.00 11.50 5.00 0.00 0.00 0.00 0.00 35.50 238.50 616.50 2027.50
1915 697.00 444.50 339.00 75.50 51.50 0.00 0.00 0.00 0.00 0.00 z 366.00 666.00 2639.50
1916 568.00 265.50 142.00 71.00 12.00 0.00 0.00 0.00 0.00 36.50 388.50 669.00 2152.50
1917 612.50 385.00 322.00 155.19 d 17.16 c 0.00 0.00 0.00 0.00 29.50 207.50 497.50 2226.35
1918 628.00 303.00 167.50 53.00 1.00 0.00 0.00 0.00 0.00 21.50 337.00 682.50 2193.50
1919 639.00 466.50 247.00 29.50 0.00 0.00 0.00 0.00 0.00 46.50 362.00 543.50 2334.00
1920 625.50 275.50 282.00 134.50 0.00 0.00 0.00 0.00 0.00 127.00 338.50 691.50 2474.50
1921 542.00 308.50 109.00 136.50 14.00 0.00 0.00 0.00 0.00 43.00 317.50 480.50 1951.00
1922 643.00 373.50 311.00 137.00 12.50 0.00 0.00 0.00 0.00 67.50 438.00 526.00 2508.50
1923 522.00 440.50 315.00 40.00 2.00 0.00 0.00 0.00 0.00 80.00 367.50 696.50 2463.50
1924 692.00 374.50 390.50 95.00 0.00 0.00 0.00 0.00 0.00 16.00 262.00 661.00 2491.00
1925 685.50 286.50 142.00 47.50 0.00 0.00 0.00 0.00 0.00 58.00 402.50 710.50 2332.50
1926 763.50 359.50 241.50 121.50 4.00 0.00 0.00 0.00 2.50 23.50 349.00 635.00 2500.00
1927 544.50 328.50 274.50 113.50 22.00 1.00 0.00 0.00 0.00 27.00 220.50 670.50 2202.00
1928 611.00 467.50 176.50 102.50 6.00 0.00 0.00 0.00 0.00 30.00 394.00 641.00 2428.50
1929 667.50 510.50 283.00 83.50 0.00 0.00 0.00 0.00 0.00 102.50 508.00 599.50 2754.50
1930 627.00 287.00 268.00 18.50 49.00 0.00 0.00 0.00 0.00 39.00 367.50 659.00 2315.00
1931 638.50 387.50 258.50 45.00 0.00 0.00 0.00 0.00 0.00 30.50 397.50 697.50 2455.00
1932 793.00 355.50 273.00 63.50 9.00 0.00 0.00 0.00 1.50 70.00 327.50 690.00 2583.00
1933 716.00 543.00 188.50 142.50 64.00 0.00 0.00 0.00 0.00 3.50 162.00 422.50 2242.00
1934 482.00 185.00 57.00 15.00 0.00 0.00 0.00 0.00 0.00 3.00 222.00 386.50 1350.50
1935 412.50 297.00 199.00 23.50 39.50 0.00 z 0.00 z 0.00 0.00 31.00 270.00 474.00 1746.50
1936 498.50 360.50 150.00 66.50 0.00 0.00 0.00 e 0.00 1.50 28.50 240.00 440.50 1786.00
1937 712.00 360.00 221.50 32.50 2.00 0.00 0.00 0.00 0.00 1.50 166.00 442.50 1938.00
1938 429.50 291.50 150.50 63.50 3.50 0.00 0.00 0.00 0.00 2.00 358.00 448.50 1747.00
1939 519.00 569.50 156.50 23.50 0.00 0.00 a 0.00 h 0.00 0.00 9.50 190.00 357.00 1825.00
1940 498.00 340.50 101.50 32.00 2.50 0.00 0.00 0.00 0.00 14.50 327.00 363.50 1679.50
1941 474.00 159.50 j 231.00 108.00 13.00 0.00 0.00 0.00 0.00 14.00 257.00 399.00 1496.00
1942 446.00 419.00 249.50 55.00 2.50 0.00 0.00 0.00 0.00 22.50 144.00 e 448.00 g 1338.50
1943 556.50 284.00 199.50 49.00 26.35 a 0.00 0.00 0.00 18.50 7.50 120.00 523.00 1784.35
1944 605.50 391.50 230.00 98.50 4.00 0.00 0.00 0.00 0.00 8.00 u 359.00 602.43 a 2290.93
1945 591.50 369.50 290.50 150.00 0.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 545.50 1947.00
1946 640.50 382.00 208.50 7.50 0.00 0.00 0.00 0.00 0.00 24.50 337.50 423.50 2024.00
1947 682.50 267.50 186.00 55.50 1.00 0.00 0.00 0.00 0.00 5.00 377.00 577.50 2152.00
1948 567.50 426.00 235.00 0.00 z 0.00 z 0.00 0.00 0.00 0.00 e 9.50 406.50 551.00 2195.50
1949 782.50 423.50 193.50 98.50 0.00 0.00 0.00 0.00 0.00 86.00 150.50 625.50 2360.00
1950 600.00 329.00 227.00 12.00 18.00 0.00 0.00 0.00 0.00 0.00 253.00 501.50 1940.50
1951 660.50 422.00 341.00 96.00 30.00 0.00 0.00 0.00 0.00 23.50 291.00 585.00 2449.00
1952 451.00 469.50 384.50 61.00 13.00 0.00 0.00 0.00 0.00 0.00 355.00 565.50 2299.50
1953 460.00 393.50 231.50 67.50 38.50 0.00 0.00 0.00 0.00 16.50 220.50 620.50 2048.50
1954 496.50 208.50 275.50 10.50 14.00 0.00 0.00 0.00 0.00 2.00 113.00 360.00 1480.00
1955 622.00 546.00 212.50 69.00 3.00 0.00 0.00 0.00 0.00 0.50 237.50 472.50 2163.00
1956 0.00 z 0.00 z 0.00 z 62.00 0.00 0.00 0.00 0.00 0.00 35.50 344.00 550.50 992.00
1957 508.00 180.00 226.00 92.00 24.50 0.00 0.00 0.00 0.00 59.86 b 393.00 474.00 1957.36
1958 551.00 318.50 391.00 107.00 0.00 0.00 0.00 0.00 0.00 45.00 244.50 479.00 2136.00
1959 474.50 390.50 226.00 11.50 6.50 0.00 0.00 0.00 0.00 16.50 337.00 544.00 2006.50
1960 704.50 555.50 160.50 35.00 11.00 0.00 0.00 0.00 0.00 48.00 203.00 629.00 2346.50
1961 563.50 392.50 246.00 46.50 1.50 0.00 0.00 0.00 0.00 37.50 438.50 564.50 2290.50
1962 660.00 298.00 393.00 8.00 1.00 0.00 0.00 0.00 0.00 6.00 194.50 498.00 2058.50
1963 661.00 303.00 251.50 76.50 0.00 0.00 0.00 0.00 0.00 5.50 285.50 643.50 2226.50
1964 722.50 633.00 410.50 164.50 22.50 0.00 0.00 0.00 0.00 5.00 373.50 628.00 2959.50
1965 507.50 371.00 348.00 103.50 12.50 0.00 0.00 0.00 0.00 17.50 178.50 545.00 2083.50
1966 663.50 557.50 209.50 42.00 0.00 0.00 0.00 0.00 0.00 54.00 227.00 643.00 2396.50
1967 652.00 392.00 158.00 82.00 19.50 0.00 0.00 0.00 0.00 29.50 236.50 703.00 2272.50
1968 553.00 280.00 279.50 115.50 0.00 0.00 0.00 0.00 0.00 5.50 286.00 668.00 2187.50
1969 457.00 421.00 352.50 17.50 38.50 0.00 0.00 0.00 0.00 53.00 333.50 525.00 2198.00
1970 603.50 301.00 328.00 137.50 12.00 0.00 0.00 0.00 1.00 92.00 304.00 475.50 2254.50
1971 531.50 347.50 196.50 60.50 1.00 0.00 0.00 0.00 0.00 95.00 272.50 590.00 2094.50
1972 515.00 321.50 57.00 6.50 n 0.00 0.00 0.00 0.00 0.00 81.24 b 428.50 622.50 2025.74
1973 629.82 a 455.00 431.00 198.50 23.00 0.00 0.00 b 0.00 e 0.00 40.50 312.00 517.00 2606.82
1974 559.00 481.50 196.00 78.50 3.50 0.00 0.00 0.00 0.00 63.50 284.50 651.00 2317.50
1975 626.00 437.00 343.50 207.00 40.00 0.00 0.00 0.00 0.00 26.00 340.50 591.00 2611.00
1976 594.50 333.50 266.50 105.50 23.00 0.00 0.00 0.00 0.00 130.50 342.50 597.00 2393.00
1977 604.50 347.50 384.00 92.00 7.00 0.00 0.00 0.00 0.00 19.50 261.00 444.00 2159.50
1978 578.50 431.50 238.00 84.50 44.50 0.00 a 0.00 0.00 0.00 65.00 343.00 725.50 2510.50
1979 742.50 444.50 356.00 145.50 0.00 z 0.00 z 0.00 s 0.00 r 0.00 z 0.00 z 0.00 z 0.00 z 1688.50
1980 303.50 j 388.50 372.50 54.50 x 4.50 m 0.00 0.00 x 0.00 z 0.00 z 139.00 355.50 496.00 1751.50
1981 522.35 a 350.00 321.50 50.00 0.00 0.00 a 0.00 0.00 0.00 52.50 255.50 516.00 2067.85
1982 619.50 407.00 308.50 80.50 23.00 0.00 0.00 0.00 1.00 53.00 394.50 644.00 2531.00
1983 635.50 461.50 366.00 243.00 18.50 0.00 0.00 0.00 0.00 0.00 z 289.50 i 540.50 2265.00
1984 555.50 438.00 229.00 86.00 8.50 0.00 0.00 0.00 2.00 102.00 298.50 538.00 2257.50
1985 152.00 w 483.00 257.50 67.50 4.00 0.50 0.00 0.00 0.50 35.13 a 331.50 536.50 1716.13
1986 437.00 325.50 181.87 a 54.50 17.00 0.00 0.00 0.00 9.00 36.50 326.00 574.00 1961.37
1987 605.50 472.50 168.00 j 66.00 1.50 0.00 0.00 0.00 0.00 2.00 393.00 668.00 2208.50
1988 642.00 378.50 266.50 105.56 c 35.00 0.00 0.00 0.00 0.00 5.00 375.00 664.50 2472.06
1989 621.50 364.00 181.50 20.50 5.00 0.00 0.00 0.00 0.00 74.50 270.00 653.00 2190.00
1990 627.50 559.50 312.50 65.50 43.50 p 2.00 0.00 0.00 0.00 28.50 274.50 641.50 2511.50
1991 555.50 296.50 389.50 80.50 8.50 0.00 0.00 0.00 0.00 76.50 380.00 540.00 2327.00
1992 624.00 345.50 247.50 47.50 5.00 0.00 0.00 0.00 0.00 9.00 432.50 598.50 2309.50
1993 487.70 c 406.50 232.00 51.00 0.00 0.00 0.00 0.00 0.00 91.00 384.50 562.50 2215.20
1994 552.00 404.50 188.00 72.50 0.00 0.00 0.00 0.00 0.00 44.00 386.00 496.00 2143.00
1995 572.50 257.50 227.00 116.50 27.50 0.00 0.00 0.00 0.00 9.00 192.50 531.50 1934.00
1996 516.00 237.00 232.50 55.00 0.00 0.00 0.00 0.00 0.00 135.50 306.50 0.00 z 1482.50
1997 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
1998 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 248.00 544.50 792.50
1999 485.15 a 303.33 a 157.21 c 103.89 c 14.50 0.00 0.00 c 0.00 d 0.00 27.00 140.00 419.00 i 1231.09
2000 0.00 z 176.00 l 137.00 k 26.50 f 0.00 0.00 0.00 a 0.00 0.00 122.97 a 508.00 557.50 1188.47
2001 650.50 446.50 257.50 113.04 b 3.50 0.00 a 0.00 k 0.00 0.00 0.00 201.72 a 622.00 2294.76
2002 563.50 370.50 242.00 9.50 4.50 0.00 0.00 0.00 0.00 48.00 263.50 568.50 2070.00
2003 339.00 367.50 214.50 75.00 0.50 0.00 0.00 0.00 0.00 b 105.52 e 276.96 b 560.14 b 1939.12
2004 332.50 i 446.15 c 138.00 73.00 0.00 0.00 0.00 i 0.00 0.00 48.50 g 379.00 619.00 1655.15
2005 488.00 409.50 264.00 131.38 a 39.00 0.00 z 0.00 0.00 b 0.00 h 10.00 0.00 z 493.00 1834.88
2006 469.00 280.00 251.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 618.50 1619.00
2007 680.50 393.50 172.50 27.00 0.00 a 0.00 0.00 g 0.00 e 0.00 15.50 150.50 571.00 2010.50
2008 560.07 a 360.50 0.00 z 28.45 a 6.72 a 0.00 0.00 0.00 b 0.00 z 0.00 z 85.50 u 525.00 1480.73
2009 444.00 282.50 137.50 54.00 0.00 0.00 0.00 f 0.00 0.00 0.00 z 0.00 z 0.00 z 918.00
2010 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
2011 394.00 h 165.50 o 97.43 c 30.58 d 18.27 c 0.00 b 0.00 0.00 0.00 c 35.17 e 331.67 c 634.90 e 1148.02
2012 505.09 b 378.61 b 258.33 d 54.00 1.15 d 0.00 c 0.00 0.00 0.00 14.50 h 754.00 0.00 z 1951.18
2013 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
Period of Record Statistics
MEAN 581.49 381.51 244.59 75.43 10.69 0.04 0.00 0.00 0.41 40.16 308.29 572.32 2218.49
S.D. 91.85 85.68 83.90 46.51 14.09 0.23 0.00 0.00 2.13 35.02 96.68 90.33 278.36
SKEW 0.01 0.27 0.04 0.93 1.61 7.27 0.00 0.00 7.26 1.10 0.82 -0.33 -0.39
MAX 793.00 633.00 431.00 243.00 64.00 2.00 0.00 0.00 18.50 139.00 754.00 761.50 2959.50
MIN 339.00 180.00 57.00 7.50 0.00 0.00 0.00 0.00 0.00 0.00 113.00 357.00 1350.50
NO YRS 95 97 97 96 96 97 92 98 95 91 96 97 73