LITCHFIELD PARK, ARIZONA

Monthly Total Heating Degree Days

(024977)

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
1917 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 d 0.00 9.50 173.00 124.00 u 182.50
1918 428.50 h 279.50 115.22 a 24.50 4.50 0.00 a 0.00 0.00 0.00 z 0.00 z 225.50 h 507.22 b 930.94
1919 494.00 412.50 258.00 24.00 0.00 0.00 0.00 0.00 b 0.00 38.50 259.50 365.00 1851.50
1920 404.55 a 108.50 r 0.00 z 78.00 0.00 d 0.00 0.00 0.00 0.00 86.50 213.00 519.50 1301.55
1921 594.00 339.00 12.63 d 38.00 27.00 f 0.00 a 0.00 0.00 0.00 18.08 a 168.75 b 317.20 c 1487.66
1922 534.00 325.00 280.00 135.52 a 16.02 a 0.00 0.00 0.00 0.00 a 30.00 319.66 a 332.00 1972.19
1923 340.48 a 298.00 215.97 a 47.78 c 0.00 b 0.00 c 0.00 0.00 d 0.00 b 40.00 178.00 419.50 1539.73
1924 496.00 264.62 a 332.73 a 72.93 a 0.00 0.00 0.00 0.00 j 0.00 l 24.28 a 195.50 420.05 a 1806.12
1925 432.00 216.22 a 125.03 a 59.44 c 0.00 0.00 u 0.00 g 0.00 g 0.00 f 117.00 329.00 428.83 a 1707.53
1926 555.33 b 262.64 c 122.21 e 50.89 b 3.32 c 0.00 b 0.00 0.00 d 0.00 b 0.00 168.75 b 359.50 f 1163.14
1927 349.50 244.00 261.84 c 97.50 10.69 b 0.00 a 0.00 t 0.00 f 0.00 14.43 b 104.46 b 477.00 1559.42
1928 437.62 a 341.02 b 113.15 a 36.96 b 0.00 b 0.00 0.00 b 0.00 0.60 e 29.40 b 193.45 a 391.67 e 1543.87
1929 484.00 376.92 b 214.50 69.00 0.00 h 0.00 c 0.00 0.00 0.00 71.30 a 282.41 a 360.00 1858.14
1930 451.57 a 170.15 b 163.00 16.07 b 60.81 e 0.00 a 0.00 b 0.00 b 0.00 c 9.50 192.78 c 445.50 1509.38
1931 422.24 b 224.56 c 142.50 1.50 0.00 d 0.00 g 0.00 c 0.00 d 0.00 a 24.36 c 306.96 b 510.95 c 1633.07
1932 630.16 b 307.72 b 188.14 b 62.14 b 8.35 e 0.50 0.00 c 0.00 e 0.00 a 26.23 e 115.34 a 512.00 1850.58
1933 544.05 a 445.93 a 150.35 a 69.31 a 32.07 b 0.00 a 0.00 b 0.00 b 0.00 c 0.00 a 124.66 a 375.21 b 1741.57
1934 352.00 152.44 a 4.00 n 9.11 b 0.00 c 0.00 b 0.00 a 0.00 0.00 z 4.77 e 118.00 l 270.39 d 788.71
1935 382.33 d 205.69 b 199.00 k 25.34 a 6.20 a 0.00 b 0.00 0.00 l 0.00 15.50 a 268.97 a 352.37 a 1256.40
1936 412.30 a 284.63 b 92.47 b 32.68 b 0.00 d 0.00 b 0.00 b 0.00 a 0.00 c 6.00 135.00 d 384.18 c 1347.25
1937 678.90 a 290.50 166.88 a 28.39 b 0.00 a 0.00 b 0.00 a 0.00 b 0.00 b 12.40 a 0.00 z 0.00 z 1177.08
1938 342.60 b 259.28 c 192.41 b 33.50 f 3.10 a 0.00 c 0.00 e 0.00 0.00 b 6.72 a 306.50 372.00 a 1482.61
1939 0.00 z 0.00 z 159.50 12.22 c 0.00 b 0.00 a 0.00 b 0.00 0.00 a 13.29 c 87.50 286.50 559.01
1940 356.50 b 276.50 95.00 g 14.48 a 0.00 0.00 a 0.00 a 0.00 0.00 a 25.50 243.50 312.58 a 1229.07
1941 349.50 194.50 174.93 c 128.00 4.65 a 0.00 0.00 0.00 a 0.00 47.03 b 161.25 b 372.50 1432.36
1942 384.50 374.50 208.50 49.50 0.50 0.00 a 0.00 0.00 0.00 15.00 110.17 a 333.50 1476.17
1943 385.50 177.00 75.95 a 41.50 0.50 0.00 0.00 a 0.00 a 0.00 31.00 142.50 354.00 1207.95
1944 451.50 387.00 236.00 60.56 c 0.00 b 0.00 0.00 b 0.00 b 0.00 0.00 245.00 404.50 1784.56
1945 452.00 292.38 b 266.00 88.00 0.00 b 0.00 0.00 0.00 0.00 0.00 a 235.50 475.00 1808.88
1946 453.50 352.07 a 140.61 c 10.50 0.00 0.00 a 0.00 0.00 0.00 35.00 304.50 333.50 1629.68
1947 492.50 186.50 113.67 a 31.07 b 0.50 0.00 0.00 0.00 0.00 7.50 297.50 510.50 1639.74
1948 437.50 376.50 257.00 17.07 a 4.13 a 0.00 0.00 0.00 a 0.00 13.50 304.00 444.33 a 1854.04
1949 646.00 369.19 a 185.00 41.00 0.00 0.00 0.00 0.00 0.00 49.50 67.50 422.50 1780.69
1950 469.50 189.00 119.00 10.00 5.00 0.00 0.00 0.00 0.00 0.00 112.00 289.00 1193.50
1951 460.00 286.00 164.82 a 41.90 a 17.00 q 0.00 z 0.00 z 0.00 z 0.00 v 19.00 71.00 v 472.00 1443.71
1952 494.50 364.50 326.50 44.46 b 0.00 0.00 b 0.00 0.00 0.00 a 0.00 a 293.50 502.09 c 2025.55
1953 308.40 b 314.74 a 139.00 56.38 a 17.50 0.00 0.00 0.00 0.00 22.00 183.75 b 517.50 1559.27
1954 431.00 145.19 a 123.50 m 5.00 3.10 a 0.00 0.00 0.00 0.00 25.00 96.00 397.00 1102.29
1955 509.50 397.00 163.50 64.50 11.00 0.00 0.00 0.00 0.00 2.00 184.00 323.00 1654.50
1956 321.50 448.50 133.50 57.00 0.00 0.00 0.00 0.00 i 0.00 33.58 a 228.50 407.00 1629.58
1957 360.50 130.00 104.00 41.67 c 3.00 0.00 0.00 0.00 0.00 14.50 270.50 330.50 1254.67
1958 400.00 196.00 236.00 65.00 0.00 0.00 0.00 0.00 0.00 6.00 152.50 290.00 1345.50
1959 347.20 a 324.00 99.50 0.00 5.50 0.00 0.00 0.00 0.00 18.00 113.00 351.50 1258.70
1960 504.50 384.50 71.50 21.00 0.00 0.00 0.00 0.00 0.00 a 6.50 147.50 410.50 1546.00
1961 303.00 202.50 140.50 14.00 0.00 0.00 0.00 0.00 0.00 47.50 243.50 416.00 1367.00
1962 416.00 255.50 295.50 2.00 1.50 0.00 0.00 0.00 0.00 1.00 98.00 274.35 a 1343.85
1963 479.00 135.00 160.50 71.50 0.00 0.00 0.00 0.00 0.00 0.00 118.00 379.00 1343.00
1964 499.00 414.00 252.00 68.50 25.00 0.00 0.00 0.00 0.00 0.50 270.00 377.50 1906.50
1965 335.00 278.00 227.50 107.50 6.50 0.00 0.00 0.00 1.50 6.00 109.00 345.00 1416.00
1966 488.50 413.00 126.50 10.50 0.00 0.00 0.00 0.00 0.00 5.50 131.00 429.50 1604.50
1967 425.00 213.00 97.50 89.00 9.50 0.00 0.00 0.00 0.00 7.00 67.00 519.00 1427.00
1968 365.00 131.00 141.50 30.00 0.00 0.00 0.00 0.00 0.00 0.00 174.00 488.50 1330.00
1969 283.50 303.00 249.50 9.00 11.00 0.00 0.00 0.00 0.00 25.00 125.00 330.00 1336.00
1970 423.00 149.50 168.50 86.50 0.00 0.00 0.00 0.00 0.00 30.50 150.00 418.50 1426.50
1971 435.50 277.00 142.50 50.00 4.00 0.00 0.00 0.00 0.00 96.00 179.00 419.00 1603.00
1972 440.50 204.50 32.00 19.50 0.00 0.00 0.00 0.00 0.00 43.00 262.00 455.50 1457.00
1973 468.50 264.50 305.00 52.50 0.50 0.00 0.00 0.00 0.00 12.50 189.00 356.50 a 1649.00
1974 390.50 279.00 97.00 15.00 1.50 0.00 0.00 0.00 f 0.00 b 28.93 a 170.50 511.50 1493.93
1975 439.50 332.00 197.00 112.00 14.50 0.00 0.00 0.00 0.00 32.00 203.50 397.50 1728.00
1976 399.00 190.00 183.00 67.50 0.00 0.00 0.00 0.00 0.00 44.00 180.52 a 406.50 1470.52
1977 397.00 198.50 232.00 42.00 1.50 0.00 0.00 0.00 0.00 0.00 99.50 272.00 1242.50
1978 352.00 251.00 102.00 36.00 1.03 a 0.00 0.00 0.00 0.00 5.00 202.00 477.50 1426.53
1979 521.50 295.50 189.50 41.50 7.50 0.00 0.00 0.00 0.00 13.95 a 216.00 317.23 a 1602.68
1980 270.00 148.50 151.00 51.00 2.50 0.00 0.00 0.00 a 0.00 23.50 137.00 185.00 968.50
1981 220.50 173.50 124.50 14.50 0.00 0.00 0.00 0.00 0.00 16.50 93.50 290.50 933.50
1982 397.50 182.50 154.50 19.50 0.00 0.00 0.00 0.00 0.00 7.00 162.00 408.50 1331.50
1983 354.50 244.50 156.00 75.50 3.50 0.00 0.00 0.00 0.00 0.00 191.00 337.50 1362.50
1984 331.00 259.50 71.00 46.50 0.00 0.00 0.00 0.00 0.00 21.50 182.50 405.50 1317.50
1985 414.50 284.50 141.50 5.50 0.00 0.00 0.00 0.00 0.00 2.00 225.50 395.50 1469.00
1986 230.50 232.00 99.50 g 21.50 6.00 0.00 0.00 0.00 5.50 16.53 a 144.50 399.50 1056.03
1987 455.00 259.50 173.00 13.00 0.00 0.00 0.00 0.00 0.00 0.00 191.00 518.00 1609.50
1988 451.50 228.50 126.50 49.00 13.00 0.00 0.00 0.00 0.00 2.50 0.00 z 410.00 1281.00
1989 452.00 214.00 67.54 c 2.50 0.00 0.00 0.00 m 0.00 0.00 22.00 98.50 0.00 z 856.54
1990 0.00 z 324.50 145.46 e 0.00 z 0.00 b 0.00 c 0.00 0.00 0.00 0.00 139.00 469.50 1078.46
1991 415.00 100.50 257.00 0.00 z 0.00 v 0.00 z 0.00 0.00 0.00 42.50 168.50 338.50 1322.00
1992 391.50 167.50 132.00 9.50 0.50 0.00 0.00 c 0.00 0.00 0.00 237.00 479.50 1417.50
1993 320.00 265.00 110.50 0.00 z 0.00 b 0.00 0.00 0.00 0.00 5.50 223.00 396.50 1320.50
1994 380.00 279.00 82.00 26.00 0.00 0.00 0.00 0.00 0.00 19.00 282.50 375.00 1443.50
1995 403.00 113.00 105.50 67.50 12.00 0.00 0.00 0.00 0.00 1.50 37.00 337.00 1076.50
1996 380.50 143.00 96.50 0.00 0.00 c 0.00 0.00 0.00 0.00 a 69.00 112.50 364.50 1166.00
1997 357.50 176.50 i 44.43 a 39.50 0.00 0.00 0.00 d 0.00 0.00 29.50 155.50 294.00 i 626.43
1998 377.50 360.50 171.50 107.50 2.50 n 0.00 z 0.00 0.00 0.00 5.00 m 178.50 446.00 1641.50
1999 351.73 e 130.50 n 53.50 i 98.50 o 0.00 r 0.00 c 0.00 c 0.00 a 0.00 0.00 113.50 j 238.50 o 351.73
2000 80.00 w 214.50 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 214.50
2001 0.00 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
2002 0.00 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
2003 0.00 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
2004 0.00 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 216.50 372.00 588.50
2005 298.50 208.50 115.00 5.00 0.00 0.00 0.00 0.00 0.00 0.00 88.00 359.50 1074.50
2006 315.00 171.50 171.50 8.00 0.00 0.00 0.00 0.00 0.00 2.50 98.00 420.00 1186.50
2007 422.50 195.00 76.50 11.00 0.00 0.00 0.00 0.00 0.00 0.00 62.50 461.50 1229.00
2008 398.00 273.50 80.50 0.50 6.50 0.00 0.00 0.00 0.00 10.00 70.00 368.50 1207.50
2009 271.50 206.00 55.50 20.00 0.00 0.00 0.00 0.00 0.00 27.00 103.50 435.00 1118.50
2010 308.00 205.50 132.50 25.00 0.00 0.00 0.00 0.00 0.00 0.00 204.00 267.00 1142.00
2011 374.50 314.00 56.00 24.00 0.00 0.00 0.00 0.00 0.00 0.50 143.50 432.50 1345.00
2012 273.00 213.00 97.00 9.50 0.00 0.00 0.00 0.00 0.00 0.00 a 57.00 354.50 1004.00
2013 419.50 277.50 59.13 d 0.00 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 756.13
Period of Record Statistics
MEAN 411.91 260.36 154.94 40.66 3.91 0.01 0.00 0.00 0.09 18.94 176.81 394.39 1449.84
S.D. 86.50 82.36 69.68 31.61 8.56 0.05 0.00 0.00 0.62 22.25 71.19 71.64 253.31
SKEW 0.51 0.28 0.52 0.88 4.27 9.06 0.00 0.00 8.19 2.01 0.28 -0.12 0.20
MAX 678.90 448.50 332.73 135.52 60.81 0.50 0.00 0.00 5.50 117.00 329.00 519.50 2025.55
MIN 220.50 100.50 12.63 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37.00 185.00 933.50
NO YRS 88 88 84 85 84 85 86 84 86 89 86 86 62