WILLCOX, ARIZONA

Monthly Total Cooling Degree Days

(029334)

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
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 r 0.00 0.00 z 100.50 308.45 a 282.50 206.90 a 4.00 0.00 0.00 902.35
1904 0.00 0.00 0.00 1.50 95.50 238.00 392.50 345.50 167.00 33.00 0.00 0.00 1273.00
1905 0.00 0.00 0.00 0.00 36.50 304.50 401.50 440.00 239.00 24.50 0.00 0.00 1446.00
1906 0.00 0.00 0.00 3.00 54.50 257.50 446.50 279.50 153.00 3.00 0.00 0.00 1197.00
1907 0.00 0.00 5.00 0.00 20.00 165.50 394.00 352.00 211.50 2.50 0.00 z 0.00 1150.50
1908 0.00 0.00 0.00 0.00 8.00 244.50 408.00 363.50 169.00 2.00 0.00 z 0.00 1195.00
1909 0.00 0.00 0.00 0.00 3.50 254.50 462.50 360.00 159.00 10.00 0.00 0.00 z 1249.50
1910 0.00 z 0.00 0.00 9.00 101.50 339.00 389.50 275.50 266.00 9.50 0.00 0.00 1390.00
1911 0.00 0.00 z 0.00 z 0.00 33.00 0.00 z 0.00 z 291.00 125.50 4.00 0.00 0.00 453.50
1912 0.00 0.00 0.00 0.00 58.00 319.50 322.50 281.50 118.50 0.50 0.00 0.00 1100.50
1913 0.00 0.00 0.00 0.00 41.50 159.50 298.50 307.00 160.00 6.50 0.00 0.00 973.00
1914 0.00 0.00 0.00 3.50 78.53 a 327.00 371.00 410.50 217.50 5.50 0.00 0.00 1413.53
1915 0.00 0.00 0.00 0.00 14.00 210.00 381.00 392.50 199.00 11.50 0.00 0.00 1208.00
1916 0.00 0.00 0.00 6.00 37.50 249.50 372.00 357.50 251.50 26.50 0.00 a 0.00 1300.50
1917 0.00 0.00 0.00 0.00 3.00 217.50 399.00 274.00 145.50 27.00 0.00 0.00 1066.00
1918 0.00 0.00 0.00 0.00 13.50 315.00 350.50 228.00 143.28 a 23.00 0.00 0.00 1073.28
1919 0.00 0.00 0.00 5.17 a 17.00 217.00 301.50 283.50 109.00 0.00 0.00 0.00 933.17
1920 0.00 0.00 0.00 0.00 21.50 118.50 237.50 k 231.00 118.50 12.00 0.00 0.00 q 501.50
1921 0.00 0.00 0.00 2.50 38.50 224.50 341.50 249.55 a 142.00 21.00 0.00 0.00 c 1019.55
1922 0.00 0.00 a 0.00 0.00 k 23.25 a 275.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 23.25
1923 0.00 k 0.00 0.00 0.50 46.50 150.50 347.50 242.00 111.00 1.50 0.00 0.00 899.50
1924 0.00 a 0.00 0.00 b 0.00 29.00 311.00 381.00 369.50 246.50 1.72 d 0.00 i 0.00 1338.72
1925 0.00 0.00 a 0.00 9.00 72.00 232.50 411.50 266.00 128.00 35.50 0.00 0.00 1154.50
1926 0.00 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
1927 0.00 z 0.00 z 0.00 1.00 31.50 157.50 316.00 265.57 a 149.00 6.00 0.00 0.00 926.57
1928 0.00 0.00 0.00 1.50 46.50 172.50 340.00 228.50 115.50 j 16.00 0.00 0.00 805.00
1929 0.00 0.00 0.00 0.50 25.50 173.50 336.50 223.20 a 129.50 31.00 0.00 0.00 919.70
1930 0.00 0.00 d 0.00 2.50 3.50 182.00 259.50 231.00 61.50 0.00 0.00 i 0.00 740.00
1931 0.00 0.00 0.00 0.00 19.50 157.50 277.00 h 269.50 196.00 15.50 0.00 b 0.00 d 658.00
1932 0.00 0.00 0.00 1.50 19.50 183.00 372.00 330.00 163.50 11.00 0.00 0.00 1080.50
1933 0.00 0.00 0.00 0.00 26.50 232.50 409.00 354.00 208.00 35.50 0.00 0.00 1265.50
1934 0.00 0.00 0.00 14.44 c 145.59 c 178.00 404.50 267.00 72.00 10.00 1.03 a 0.00 1092.57
1935 0.00 0.00 0.00 2.00 9.00 209.50 364.50 314.13 a 121.50 29.00 0.00 0.00 1049.63
1936 0.00 0.00 0.00 27.50 72.00 313.00 431.00 337.00 140.50 0.00 0.00 0.00 1321.00
1937 0.00 0.00 0.00 2.50 61.50 158.28 a 399.38 a 253.50 h 178.50 15.50 d 0.00 n 0.00 m 815.66
1938 0.00 0.00 z 0.00 7.00 62.00 282.50 349.00 330.50 158.50 7.00 f 0.00 b 0.00 g 1189.50
1939 0.00 0.00 0.00 2.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 v 0.00 0.00 b 2.00
1940 0.00 0.00 0.00 2.07 a 94.50 325.50 482.10 b 375.00 248.00 40.50 0.00 z 0.00 a 1567.67
1941 0.00 a 0.00 a 0.00 a 0.00 82.67 a 211.00 406.00 339.00 142.50 g 20.00 0.00 d 0.00 e 1058.67
1942 0.00 0.00 a 0.00 0.00 j 0.00 z 242.50 454.50 337.50 174.60 e 16.02 a 0.00 h 0.00 1225.12
1943 0.00 0.00 a 0.00 a 17.50 87.50 260.40 e 427.50 379.00 199.50 9.00 0.00 d 0.00 d 1380.40
1944 0.00 0.00 0.00 a 0.00 c 53.73 a 223.00 407.65 a 404.00 193.00 33.00 0.00 0.00 h 1314.38
1945 0.00 0.00 0.00 k 0.00 c 31.55 c 160.50 328.00 i 412.82 a 245.00 31.52 a 0.00 0.00 881.39
1946 0.00 a 0.00 0.00 29.50 21.00 347.50 481.00 397.00 243.50 10.50 0.00 0.00 f 1530.00
1947 0.00 0.00 c 0.00 c 0.00 d 151.26 b 242.22 c 492.38 a 393.00 263.89 c 42.07 c 0.00 b 0.00 1584.82
1948 0.00 b 0.00 0.00 e 16.00 h 117.69 d 330.00 455.00 404.60 b 229.29 b 9.50 0.00 0.00 1546.07
1949 0.00 0.00 0.00 19.50 48.50 270.50 390.50 359.00 272.50 22.00 0.00 0.00 1382.50
1950 0.00 0.00 0.00 4.00 45.00 g 272.50 365.00 355.00 141.00 83.00 0.00 0.00 1220.50
1951 0.00 0.00 0.00 1.50 106.50 186.00 536.00 403.50 261.50 37.50 0.00 0.00 1532.50
1952 0.00 0.00 0.00 1.50 110.50 310.50 466.50 432.00 264.00 19.00 0.00 0.00 1604.00
1953 0.00 0.00 c 0.00 5.89 b 45.93 d 343.85 d 463.45 a 294.50 h 228.50 19.52 d 0.00 a 0.00 b 1107.13
1954 0.00 a 0.00 e 0.00 15.00 g 51.00 k 269.50 483.50 326.02 a 293.50 65.74 b 0.00 a 0.00 a 1438.26
1955 0.00 0.00 0.00 4.00 59.50 269.50 398.87 a 390.71 b 204.81 d 44.00 0.00 c 0.00 d 1371.38
1956 0.00 b 0.00 b 0.00 0.00 125.50 436.50 461.50 373.03 a 293.79 a 39.50 0.00 a 0.00 1729.83
1957 0.00 0.00 d 0.00 e 0.00 a 24.69 d 300.50 427.50 335.50 143.00 11.00 0.00 b 0.00 b 1242.19
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 0.00 b 0.00 d 0.00 a 16.61 b 50.00 379.50 440.00 302.00 140.00 3.50 0.00 0.00 1331.61
1960 0.00 0.00 0.00 1.50 64.50 316.00 264.50 l 399.50 234.50 5.50 0.00 0.00 1021.50
1961 0.00 0.00 0.00 0.00 27.38 a 325.00 434.00 327.00 99.00 6.50 0.00 0.00 1218.88
1962 0.00 0.00 0.00 9.00 43.00 159.83 a 349.00 350.50 210.00 11.00 0.00 0.00 1132.33
1963 0.00 0.00 0.00 2.00 73.50 160.00 457.00 318.00 229.50 2.50 0.00 0.00 1242.50
1964 0.00 0.00 0.00 0.50 86.50 209.00 423.50 333.00 149.50 16.00 0.00 0.00 1218.00
1965 0.00 0.00 0.00 13.00 20.50 116.50 423.00 361.00 152.00 15.00 0.00 0.00 1101.00
1966 0.00 0.00 0.00 0.00 a 54.25 a 225.50 460.00 305.50 137.00 4.00 0.00 0.00 1186.25
1967 0.00 0.00 0.00 0.50 52.50 207.00 401.50 304.00 138.00 18.00 0.00 0.00 1121.50
1968 0.00 0.00 0.00 0.00 18.00 238.50 334.00 226.50 129.50 8.00 0.00 0.00 954.50
1969 0.00 0.00 0.00 0.00 61.50 186.50 441.00 436.00 209.50 22.50 0.00 a 0.00 1357.00
1970 0.00 0.00 0.00 0.00 61.00 295.00 452.50 329.50 150.00 2.50 0.00 0.00 e 1290.50
1971 0.00 0.00 0.00 e 0.00 h 2.50 258.00 346.50 j 234.50 k 134.00 f 26.00 0.00 0.00 286.50
1972 0.00 0.00 0.00 12.00 44.00 296.00 496.00 393.50 207.50 61.00 0.00 0.00 j 1510.00
1973 0.00 0.00 0.00 0.00 67.00 262.50 426.25 c 407.50 234.00 13.00 0.00 0.00 1410.25
1974 0.00 0.00 a 0.00 c 10.00 111.50 430.50 401.50 348.00 183.00 38.00 0.00 0.00 1522.50
1975 0.00 0.00 0.00 0.50 44.00 239.50 416.00 433.00 161.50 4.00 0.00 0.00 1298.50
1976 0.00 0.00 0.00 5.50 69.00 285.50 385.00 370.50 156.50 8.50 0.00 0.00 1280.50
1977 0.00 0.00 0.00 11.50 48.50 319.50 448.00 428.50 261.00 48.50 0.00 0.00 1565.50
1978 0.00 0.00 0.00 0.50 72.50 332.50 484.63 a 360.00 188.50 56.00 0.00 0.00 1494.63
1979 0.00 0.00 0.00 1.50 81.50 282.50 464.50 322.00 265.00 50.00 0.00 0.00 1467.00
1980 0.00 0.00 0.00 17.50 36.00 356.00 540.50 376.50 214.00 42.50 0.00 0.00 1583.00
1981 0.00 0.00 0.00 29.00 68.00 391.50 466.00 377.50 222.00 18.50 0.00 0.00 1572.50
1982 0.00 0.00 0.00 6.50 60.50 218.50 423.50 414.50 240.00 0.50 0.00 0.00 1364.00
1983 0.00 0.00 0.00 0.00 93.50 209.50 425.50 400.50 322.00 7.50 0.00 0.00 1458.50
1984 0.00 0.00 0.00 2.50 210.50 316.50 408.50 364.50 210.50 3.00 0.00 0.00 1516.00
1985 0.00 0.00 2.50 12.00 111.50 340.00 456.50 393.50 149.00 17.00 0.00 0.00 1482.00
1986 0.00 0.00 0.00 16.00 115.50 339.50 370.50 421.00 157.50 5.00 0.00 0.00 1425.00
1987 0.00 0.00 0.00 14.00 48.00 296.50 361.00 341.00 148.50 51.00 0.00 0.00 1260.00
1988 0.00 0.00 0.00 4.00 128.00 326.50 467.50 363.50 151.50 31.50 0.00 0.00 1472.50
1989 0.00 0.00 0.00 36.00 141.00 317.50 497.00 391.50 228.00 19.00 0.00 0.00 1630.00
1990 0.00 0.00 0.00 8.50 73.00 452.00 432.00 303.00 246.50 10.50 1.50 0.00 1527.00
1991 0.00 0.00 0.00 0.00 47.00 210.00 429.50 392.50 179.50 37.50 0.00 0.00 1296.00
1992 0.00 0.00 0.00 30.00 88.50 247.50 399.50 365.00 224.50 8.50 0.00 0.00 1363.50
1993 0.00 0.00 0.00 5.00 116.50 309.50 425.50 408.50 198.00 38.00 0.00 0.00 1501.00
1994 0.00 0.00 0.00 24.00 101.50 457.00 510.50 497.50 264.50 29.00 0.00 0.00 1884.00
1995 0.00 0.00 0.00 6.00 51.50 256.50 427.00 480.00 269.00 9.50 0.00 0.00 1499.50
1996 0.00 0.00 0.00 33.50 171.50 398.00 508.00 416.50 183.00 70.50 0.00 0.00 1781.00
1997 0.00 0.00 0.00 16.00 172.50 280.00 452.50 429.50 354.50 67.50 0.00 z 0.00 1772.50
1998 0.00 0.00 0.00 5.50 77.00 254.00 496.50 463.00 318.50 29.50 0.00 0.00 1644.00
1999 0.00 0.00 0.00 16.50 95.00 319.00 387.50 390.50 264.50 32.00 0.00 0.00 1505.00
2000 0.00 0.00 0.00 34.00 221.50 387.50 513.00 423.00 324.50 58.00 0.00 0.00 1961.50
2001 0.00 0.00 0.00 32.00 181.00 396.50 448.00 414.00 259.50 33.50 6.50 0.00 1771.00
2002 0.00 0.00 0.00 41.50 120.50 444.50 516.50 412.50 276.00 11.00 0.00 0.00 a 1822.50
2003 0.00 0.00 0.00 12.00 193.50 403.00 590.50 497.15 d 339.00 116.50 0.00 0.00 2151.65
2004 0.00 0.00 10.50 6.50 176.50 349.50 464.50 357.50 192.50 23.00 0.00 0.00 1580.50
2005 0.00 0.00 h 0.00 m 1.50 126.00 f 0.00 z 559.50 393.50 290.50 60.50 0.00 z 0.00 y 1305.50
2006 0.00 n 0.00 h 0.00 e 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 0.00
2007 0.00 a 0.00 0.50 5.00 192.50 394.00 537.00 472.00 323.50 74.00 0.00 0.00 1998.50
2008 0.00 0.00 z 0.00 z 7.80 e 92.50 322.00 f 464.47 b 440.50 261.50 42.50 0.00 0.00 1309.27
2009 0.00 0.00 1.00 9.00 195.00 294.50 547.31 b 303.50 k 295.00 61.00 0.00 0.00 1402.81
2010 0.00 0.00 0.00 4.50 84.50 393.50 550.50 486.50 344.50 90.00 0.00 0.00 1954.00
2011 0.00 0.00 a 0.00 g 39.00 79.50 393.00 528.50 520.50 312.00 58.90 a 0.00 b 0.00 a 1931.40
2012 0.00 0.00 0.00 55.50 163.50 448.50 375.50 f 488.50 255.00 38.00 g 0.00 0.00 a 1411.00
2013 0.00 a 0.00 0.00 h 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 0.00 0.00 0.19 7.88 73.17 275.32 426.56 360.40 205.09 24.90 0.09 0.00 1393.12
S.D. 0.00 0.00 1.17 11.26 51.77 83.16 64.22 67.95 64.51 22.70 0.68 0.00 268.61
SKEW 0.00 0.00 7.51 1.91 0.97 0.20 0.05 -0.08 0.22 1.36 8.78 0.00 0.53
MAX 0.00 0.00 10.50 55.50 221.50 457.00 590.50 520.50 354.50 116.50 6.50 0.00 2151.65
MIN 0.00 0.00 0.00 0.00 2.50 100.50 259.50 223.20 61.50 0.00 0.00 0.00 919.70
NO YRS 105 103 102 102 101 102 98 101 102 103 97 99 71