YUMA CITRUS STN, ARIZONA

Monthly Total Heating Degree Days

(029652)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 200603
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
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 37.72 a 147.00 404.50 589.22
1921 386.98 a 177.50 40.00 64.50 7.00 0.00 0.00 0.00 0.00 9.50 102.41 a 240.77 a 1028.66
1922 460.00 0.00 z 206.15 a 94.00 11.00 0.00 0.00 a 0.00 a 0.00 23.25 a 200.00 248.50 1242.90
1923 250.00 237.00 160.00 33.50 0.00 0.00 0.00 0.00 b 0.00 a 5.00 68.50 313.00 1067.00
1924 353.50 91.00 159.00 27.41 a 0.00 a 0.00 0.00 0.00 0.00 21.50 110.50 372.50 1135.41
1925 350.00 115.11 a 86.50 48.50 0.00 0.00 0.00 0.00 0.00 6.72 a 134.00 239.00 979.83
1926 385.50 135.50 44.00 0.50 0.00 0.00 0.00 0.00 0.00 0.00 60.00 a 388.00 1013.50
1927 300.50 138.50 114.50 47.50 2.50 0.00 0.00 0.00 0.00 0.00 53.00 361.50 1018.00
1928 289.33 a 196.27 a 39.50 8.79 a 0.00 0.00 0.00 0.00 0.00 15.00 106.50 306.00 961.39
1929 404.03 a 267.50 102.30 a 46.00 0.00 0.00 0.00 0.00 0.00 21.50 170.00 0.00 z 1011.33
1930 135.50 q 97.00 98.00 7.00 28.00 0.00 0.00 z 0.00 0.00 3.50 134.48 a 440.00 807.98
1931 335.32 a 177.00 83.00 0.00 0.00 0.00 0.00 0.00 a 0.00 10.50 258.00 383.00 1246.82
1932 465.50 236.50 63.00 38.50 4.00 0.00 0.00 0.00 0.00 c 14.50 26.50 461.00 1309.50
1933 456.50 383.00 66.50 53.00 23.00 0.00 0.00 0.00 0.00 0.00 63.50 275.00 1320.50
1934 276.00 94.37 a 1.50 8.50 0.00 0.00 0.00 0.00 0.00 1.50 121.50 248.50 751.87
1935 323.00 152.50 179.50 19.00 10.50 0.00 0.00 0.00 0.00 15.00 187.50 279.00 1166.00
1936 321.00 187.00 63.50 27.50 0.00 0.00 0.00 0.00 0.00 1.55 a 93.50 301.00 995.05
1937 655.50 248.50 134.50 29.50 0.00 0.00 0.00 0.00 a 0.00 0.00 57.50 151.90 a 1277.40
1938 230.50 218.50 138.50 29.48 a 3.50 0.00 0.00 0.00 0.00 10.00 226.00 253.50 1109.98
1939 332.00 396.00 143.50 0.00 z 0.00 a 0.00 0.00 0.00 0.00 9.00 41.50 176.00 1098.00
1940 214.50 211.50 65.32 c 19.00 0.00 0.00 0.00 0.00 0.00 9.50 152.00 216.00 887.82
1941 320.50 114.50 75.50 58.50 0.00 0.00 0.00 0.00 a 0.00 21.50 120.50 281.58 a 992.58
1942 273.50 281.00 147.00 32.00 3.50 0.00 0.00 0.00 0.00 14.00 71.00 235.00 1057.00
1943 289.50 137.00 43.50 35.50 0.00 0.00 0.00 0.00 0.00 12.50 84.00 307.00 909.00
1944 363.50 336.00 125.50 25.00 3.00 0.00 0.00 a 0.00 0.00 0.00 182.00 271.00 1306.00
1945 375.50 211.00 205.50 75.50 0.00 a 0.00 0.00 b 0.00 a 0.00 0.00 150.00 357.00 1374.50
1946 347.50 297.50 115.50 25.00 0.00 0.00 0.00 0.00 0.00 23.00 223.45 a 262.50 1294.45
1947 412.00 130.00 69.00 34.50 0.00 0.00 0.00 0.00 0.00 1.00 212.00 372.00 1230.50
1948 297.50 278.50 240.50 25.50 3.00 0.00 0.00 0.00 0.00 11.00 202.50 434.00 1492.50
1949 622.50 357.50 142.50 25.00 0.00 a 0.00 0.00 0.00 0.00 54.00 22.50 378.50 1602.50
1950 444.50 157.00 77.50 14.50 6.50 0.00 0.00 0.00 a 0.00 0.00 62.50 168.50 931.00
1951 362.00 334.50 147.50 30.50 13.43 a 0.00 0.00 0.00 0.00 11.50 121.50 365.00 1385.93
1952 448.50 256.50 253.50 7.50 0.00 0.00 0.00 0.00 a 0.00 0.00 222.00 377.50 1565.50
1953 231.00 252.52 a 131.50 46.00 13.00 0.00 0.00 0.00 0.00 17.50 98.50 358.50 1148.52
1954 353.00 77.00 176.91 b 0.00 z 5.00 r 0.00 0.00 0.00 0.00 16.03 b 39.00 334.00 995.95
1955 465.50 337.50 141.00 61.00 11.50 0.00 0.00 0.00 b 0.00 0.00 132.00 258.00 1406.50
1956 267.78 b 380.50 116.50 55.00 0.00 0.00 d 0.00 l 0.00 e 0.00 e 32.55 a 169.00 311.03 a 1332.36
1957 336.00 123.50 89.00 32.07 a 1.07 b 0.00 d 0.00 b 0.00 b 0.00 a 8.50 202.20 e 264.65 d 1056.99
1958 316.89 d 118.00 g 184.40 b 51.60 e 0.00 k 0.00 f 0.00 j 0.00 e 0.00 d 1.15 d 160.96 d 134.50 h 715.00
1959 277.81 e 233.00 f 55.50 0.00 6.50 0.00 0.00 0.00 c 0.00 14.50 109.50 338.00 801.81
1960 495.00 323.00 53.50 23.28 a 0.00 0.00 0.00 0.00 0.00 9.50 176.50 404.00 1484.78
1961 314.00 207.50 139.50 a 21.50 5.50 0.00 0.00 0.00 0.00 42.88 a 230.00 391.00 1351.88
1962 394.39 d 239.00 260.50 3.50 14.00 0.00 0.00 0.00 a 0.00 1.03 a 90.50 306.00 1308.92
1963 489.00 94.50 0.00 z 109.50 0.00 0.00 0.00 0.00 0.00 1.50 135.50 360.00 1190.00
1964 508.00 396.50 261.00 82.50 41.16 b 0.00 0.00 a 0.00 0.00 0.00 a 263.00 350.00 1902.16
1965 360.50 274.50 195.00 92.00 12.00 0.00 0.00 0.00 0.00 7.00 106.00 380.50 1427.50
1966 476.37 a 353.36 c 124.50 15.00 0.00 0.00 0.00 0.00 0.00 10.50 100.50 314.50 1394.73
1967 393.00 200.50 93.00 131.00 12.50 0.00 a 0.00 0.00 0.00 3.00 43.97 a 0.00 z 876.97
1968 396.00 120.00 105.50 55.00 3.50 0.00 a 0.00 0.00 0.00 2.07 a 140.00 492.50 1314.57
1969 231.00 273.00 202.00 14.00 9.50 0.00 0.00 b 0.00 0.00 a 23.50 89.00 301.50 1143.50
1970 368.50 173.50 147.00 103.00 6.00 0.00 0.00 0.00 0.00 22.00 118.00 373.00 1311.00
1971 371.00 228.50 152.50 50.50 16.53 a 0.00 b 0.00 0.00 a 0.00 94.00 198.00 439.50 1550.53
1972 426.77 a 202.00 34.50 29.50 0.00 0.00 0.00 0.00 0.00 24.50 232.00 390.50 1339.77
1973 431.50 225.50 211.50 65.00 c 8.50 0.00 c 0.00 0.00 0.00 7.50 164.50 317.50 1431.50
1974 360.00 269.50 100.50 10.00 0.00 0.00 0.00 b 0.00 f 0.00 a 14.50 183.50 437.50 1375.50
1975 393.70 a 282.80 c 177.45 b 118.50 14.00 0.00 b 0.00 0.00 b 0.00 d 33.00 132.50 h 346.50 1365.95
1976 360.00 195.50 163.78 a 77.50 9.50 0.00 0.00 0.00 0.00 6.50 89.00 354.50 1256.28
1977 374.00 193.00 226.00 42.50 4.50 0.00 0.00 0.00 0.00 0.00 80.50 225.00 1145.50
1978 333.50 229.00 72.00 32.50 1.00 0.00 0.00 0.00 0.00 0.00 191.00 490.50 1349.50
1979 506.00 310.50 166.50 33.50 5.50 0.00 0.00 0.00 a 0.00 20.50 219.00 297.00 1558.50
1980 255.00 145.50 144.00 54.31 a 8.50 0.00 0.00 0.00 0.00 25.50 152.00 214.50 999.31
1981 218.50 195.00 123.00 17.00 0.00 0.00 0.00 a 0.00 0.00 21.00 88.00 261.00 923.50
1982 395.00 186.00 158.00 33.50 4.50 0.00 0.00 0.00 0.00 9.00 181.50 373.00 1340.50
1983 314.00 233.50 113.00 74.00 5.00 0.00 0.00 0.00 0.00 0.00 154.00 286.50 1180.00
1984 289.50 242.50 70.00 58.00 0.00 0.00 0.00 0.00 0.00 23.00 190.50 377.50 1251.00
1985 371.00 284.50 0.00 z 0.00 z 0.00 0.00 0.00 0.00 0.00 5.50 201.00 322.50 1184.50
1986 174.00 198.50 72.00 19.00 2.50 0.00 0.00 0.00 3.50 7.00 97.50 334.50 908.50
1987 400.50 221.50 154.50 11.50 1.00 0.00 0.00 0.00 0.00 0.00 156.00 447.50 1392.50
1988 373.50 174.00 112.50 44.00 19.00 0.00 0.00 0.00 0.00 0.00 157.00 370.00 1250.00
1989 403.50 251.50 48.50 8.50 1.50 0.00 0.00 0.00 0.00 22.00 77.00 323.50 1136.00
1990 383.50 321.50 105.50 6.00 2.00 0.00 0.00 0.00 0.00 0.50 126.00 436.50 1381.50
1991 354.50 96.50 214.50 21.50 6.50 0.00 0.00 0.00 0.00 31.50 129.50 320.00 1174.50
1992 318.50 137.50 87.00 9.00 0.00 0.00 0.00 0.00 0.00 0.00 133.00 339.50 1024.50
1993 283.50 230.50 66.00 3.50 0.00 0.00 0.00 0.00 0.00 1.50 165.00 330.50 1080.50
1994 294.50 266.50 49.50 25.00 0.00 0.00 0.00 0.00 0.00 7.50 246.50 354.00 1243.50
1995 315.50 54.00 66.00 47.50 10.50 0.00 0.00 0.00 0.00 2.50 17.50 261.00 774.50
1996 262.00 121.00 84.50 1.00 0.00 0.00 0.00 0.00 0.00 54.50 66.50 268.50 858.00
1997 266.50 188.00 59.00 49.00 0.00 0.00 0.00 0.00 0.00 a 13.50 74.00 396.00 1046.00
1998 274.50 230.50 132.00 89.00 1.00 0.00 z 0.00 0.00 0.00 0.50 43.50 o 101.00 w 727.50
1999 0.00 z 0.00 z 0.00 z 41.00 r 0.00 z 0.00 k 0.00 s 0.00 l 0.00 n 0.00 s 0.00 u 75.50 w 0.00
2000 86.50 q 36.50 u 23.00 v 0.00 u 0.00 q 0.00 m 0.00 z 0.00 o 0.00 z 0.00 z 43.00 w 54.00 v 0.00
2001 62.50 x 93.50 t 0.00 z 28.50 v 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 f 83.08 d 296.50 i 83.08
2002 138.50 p 80.00 t 31.50 y 7.00 g 0.00 i 0.00 k 0.00 l 0.00 n 0.00 m 1.50 j 21.50 p 272.00 h 0.00
2003 85.00 l 119.00 j 63.50 l 9.00 t 0.00 m 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 49.00 h 2.50 l 0.00 m 0.00 q 0.00 j 0.00 l 0.00 u 9.50 p 77.00 p 195.00 k 0.00
2005 139.50 n 137.50 f 57.50 i 6.50 j 0.00 l 0.00 q 0.00 m 0.00 l 0.00 n 0.00 y 28.50 q 32.50 w 0.00
2006 48.00 v 11.50 v 0.00 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 357.46 218.57 122.00 38.91 4.96 0.00 0.00 0.00 0.04 12.69 133.91 329.61 1207.14
S.D. 87.71 82.47 59.57 29.73 7.34 0.00 0.00 0.00 0.39 15.47 60.93 73.93 222.17
SKEW 0.76 0.22 0.44 1.02 2.37 0.00 0.00 0.00 8.72 2.46 0.13 -0.08 0.30
MAX 655.50 396.50 261.00 131.00 41.16 0.00 0.00 0.00 3.50 94.00 263.00 492.50 1902.16
MIN 174.00 54.00 1.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17.50 151.90 751.87
NO YRS 77 75 76 75 76 76 75 77 79 79 78 75 64