TUCSON MAGNETIC OBSY, ARIZONA

Monthly Total Heating Degree Days

(028800)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 199403
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
1912 475.50 410.50 282.50 200.50 37.50 0.00 0.00 0.00 0.00 74.00 253.00 602.50 2336.00
1913 616.90 a 411.50 322.00 78.50 24.00 0.00 0.00 0.00 5.00 28.00 185.00 519.00 2189.90
1914 380.00 361.50 162.00 51.50 20.00 0.00 0.00 0.00 0.00 22.50 128.50 511.00 1637.00
1915 541.00 389.50 350.00 127.00 89.00 0.00 0.00 0.00 0.00 9.00 275.50 486.00 2267.00
1916 448.50 228.50 159.50 113.50 15.50 0.00 0.00 0.00 0.00 0.00 v 0.00 z 0.00 z 965.50
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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 u 16.00 265.50 360.00 641.50
1935 378.00 290.50 309.00 79.50 33.00 0.00 0.00 0.00 0.00 74.50 330.00 447.50 1942.00
1936 535.00 384.50 220.00 81.50 7.50 0.00 0.00 0.00 8.00 40.00 210.50 504.00 1991.00
1937 785.50 393.50 334.50 124.00 3.50 0.00 0.00 0.00 0.00 3.50 j 218.50 362.00 2221.50
1938 444.00 333.00 289.50 97.00 27.00 0.00 0.00 0.00 0.00 34.10 a 339.00 410.00 1973.60
1939 494.00 600.50 250.00 46.03 a 0.50 0.00 0.00 0.00 b 0.00 25.00 111.00 296.50 1823.53
1940 403.50 365.00 174.00 58.00 0.50 0.00 0.00 0.00 0.00 41.50 277.00 300.00 1619.50
1941 429.00 271.50 289.00 209.00 32.00 0.00 0.00 0.00 1.00 72.00 185.50 449.50 1938.50
1942 415.00 454.50 355.00 120.00 18.50 0.00 0.00 0.00 0.00 47.50 136.00 392.00 1938.50
1943 402.00 221.00 177.50 57.93 a 3.50 0.00 0.00 0.00 0.00 58.50 173.50 417.50 1511.43
1944 518.00 438.00 333.50 134.00 4.00 0.00 0.00 0.00 0.00 6.00 311.50 444.50 2189.50
1945 487.00 374.00 356.00 145.00 3.50 0.00 0.00 0.00 4.50 15.50 272.50 512.50 2170.50
1946 558.00 415.50 230.50 32.00 1.00 0.00 0.00 0.00 0.00 71.50 345.00 366.00 2019.50
1947 515.50 268.50 212.50 82.50 1.50 0.00 0.00 0.00 0.00 31.00 355.50 545.00 2012.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 22.50 369.50 444.00 836.00
1949 674.00 436.00 263.00 74.50 4.00 0.00 0.00 0.00 0.00 90.00 98.50 467.50 2107.50
1950 511.00 274.00 225.00 36.00 31.50 0.00 0.00 0.00 0.00 0.00 136.00 328.00 1541.50
1951 501.50 374.00 288.00 82.00 32.50 0.00 0.00 0.00 0.00 24.00 258.50 477.50 2038.00
1952 478.00 449.00 444.50 90.00 3.00 0.00 0.00 0.00 0.00 0.00 337.50 527.50 2329.50
1953 452.00 452.50 245.00 117.50 85.50 0.00 0.00 0.00 0.00 53.00 211.50 602.50 2219.50
1954 441.50 194.50 257.00 24.00 10.50 0.00 0.00 0.00 0.00 33.00 177.00 418.00 1555.50
1955 622.50 512.50 269.50 140.50 29.50 1.00 0.00 0.00 0.00 18.50 278.57 b 389.00 2261.57
1956 363.50 549.50 272.00 136.50 10.50 0.00 0.00 0.00 0.00 a 66.00 304.29 b 470.34 b 2172.63
1957 411.00 205.00 275.00 154.29 b 43.00 0.00 0.00 0.00 b 0.00 a 66.00 393.10 a 416.00 1963.39
1958 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
1959 432.50 439.50 282.50 35.00 20.50 0.00 0.00 b 0.00 0.00 42.50 235.50 430.50 1918.50
1960 609.50 550.50 214.00 113.50 22.00 0.00 0.00 0.00 0.00 i 48.50 237.00 545.71 b 2340.71
1961 387.50 336.00 239.00 80.00 16.00 0.00 0.00 0.00 0.00 62.00 324.00 478.00 1922.50
1962 517.00 333.00 422.00 38.50 27.50 0.00 0.00 0.00 0.00 23.50 167.50 380.50 1909.50
1963 558.50 265.50 299.48 c 148.50 0.00 0.00 a 0.00 0.00 0.00 6.00 251.79 b 464.00 1993.77
1964 634.98 a 572.50 411.00 164.00 45.98 a 0.00 a 0.00 b 0.00 0.00 b 7.00 351.00 452.50 2638.97
1965 435.00 399.58 d 372.50 142.50 49.00 0.00 0.00 0.00 13.50 41.00 140.50 422.50 2016.08
1966 576.00 524.00 246.50 74.00 1.50 0.00 0.00 0.00 0.00 46.50 177.00 477.00 2122.50
1967 527.50 328.00 182.00 149.50 54.50 0.00 0.00 0.00 0.00 15.00 145.00 555.00 1956.50
1968 440.00 224.00 253.50 145.50 3.50 0.00 0.00 0.00 0.00 18.50 278.50 531.50 1895.00
1969 355.50 395.00 414.50 63.00 35.50 0.00 0.00 0.00 0.00 80.00 205.50 418.50 1967.50
1970 531.50 282.50 358.50 209.50 19.00 0.00 0.00 0.00 0.00 86.50 205.00 473.50 2166.00
1971 515.50 409.00 255.00 125.00 26.50 0.00 0.00 0.00 0.00 123.50 277.50 547.00 2279.00
1972 502.00 347.50 104.00 96.50 1.50 0.00 0.00 0.00 0.00 77.50 398.50 508.50 2036.00
1973 568.00 337.50 448.50 192.00 28.50 0.00 0.00 0.00 0.00 32.50 249.00 444.00 2300.00
1974 473.50 395.00 183.50 77.50 11.50 0.00 0.00 0.00 0.00 47.50 242.00 583.50 2014.00
1975 497.00 421.50 327.00 220.00 36.50 0.00 0.00 0.00 0.00 58.50 240.00 430.50 2231.00
1976 471.50 245.50 261.50 108.50 6.50 0.00 0.00 0.00 2.00 62.00 207.00 434.00 1798.50
1977 482.00 312.50 355.00 103.50 15.50 0.00 0.00 0.00 0.00 4.00 192.00 320.00 1784.50
1978 419.50 358.00 199.00 104.50 32.50 0.00 0.00 0.00 0.00 22.50 248.50 523.50 1908.00
1979 566.27 a 366.00 329.00 115.00 35.00 0.00 0.00 0.00 0.00 36.00 311.00 366.00 2124.27
1980 393.00 260.00 294.00 136.00 21.50 0.00 0.00 0.00 0.00 75.00 217.50 261.50 1658.50
1981 321.00 251.00 277.50 46.50 0.00 0.00 0.00 0.00 0.00 36.50 126.00 352.50 1411.00
1982 460.50 316.00 270.00 72.50 17.50 0.00 0.00 0.00 0.00 51.00 217.50 488.50 1893.50
1983 435.50 362.00 298.50 215.50 26.00 0.00 0.00 0.00 0.00 10.00 298.00 431.00 2076.50
1984 464.50 397.00 251.50 147.00 2.50 0.00 0.00 0.00 0.00 68.00 273.00 460.00 2063.50
1985 480.50 402.00 260.50 70.50 4.50 0.00 0.00 0.00 1.50 28.00 277.00 456.50 1981.00
1986 288.00 300.50 154.50 54.00 19.00 0.00 0.00 0.00 5.00 44.50 219.50 468.50 1553.50
1987 496.50 343.50 297.50 40.50 1.50 0.00 0.00 0.00 a 0.00 0.00 233.00 507.50 1920.00
1988 480.50 276.00 232.00 90.50 40.00 0.00 0.00 0.00 0.00 0.00 259.50 466.50 1845.00
1989 505.00 234.50 99.00 14.50 5.50 0.00 0.00 0.00 0.00 41.50 185.50 453.50 1539.00
1990 488.00 405.50 194.50 37.50 8.50 0.00 0.00 0.00 0.00 10.50 187.50 477.50 1809.50
1991 460.00 203.50 365.00 105.00 13.00 1.50 0.00 0.00 0.00 56.50 261.00 387.00 1852.50
1992 455.00 285.00 241.50 61.00 3.00 0.00 0.00 0.00 0.00 0.00 340.00 465.50 1851.00
1993 354.50 340.00 216.00 73.00 2.00 0.00 0.00 0.00 0.00 24.50 266.50 442.00 1718.50
1994 455.50 351.00 175.50 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 982.00
Period of Record Statistics
MEAN 481.27 359.18 271.93 102.63 19.77 0.04 0.00 0.00 0.65 39.14 244.17 450.32 1964.47
S.D. 85.50 93.81 77.60 51.06 19.10 0.23 0.00 0.00 2.21 27.28 71.62 72.75 240.44
SKEW 0.70 0.41 0.18 0.52 1.50 5.62 0.00 0.00 4.19 0.54 0.07 -0.28 -0.08
MAX 785.50 600.50 448.50 220.00 89.00 1.50 0.00 0.00 13.50 123.50 398.50 602.50 2638.97
MIN 288.00 194.50 99.00 14.50 0.00 0.00 0.00 0.00 0.00 0.00 98.50 261.50 1411.00
NO YRS 63 63 63 62 62 62 63 63 62 62 63 63 59