GRANITE REEF DAM, ARIZONA

Monthly Total Heating Degree Days

(023621)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 197909
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 302.50 185.00 0.00 z 0.00 z 0.00 z 0.00 n 0.00 0.00 f 0.00 0.00 111.50 190.50 f 599.00
1894 430.00 358.00 160.00 10.50 0.00 0.00 0.00 z 0.00 0.00 9.62 b 0.00 z 0.00 z 968.12
1895 0.00 z 233.00 123.50 5.00 0.00 z 0.00 0.00 z 0.00 c 0.00 0.00 0.00 z 0.00 z 361.50
1896 0.00 z 0.00 z 0.00 z 40.50 5.00 0.00 0.00 a 0.00 0.00 e 0.00 a 0.00 z 0.00 z 45.50
1897 0.00 z 0.00 z 262.00 f 27.50 0.00 a 0.00 0.00 0.00 j 0.00 0.00 41.54 d 374.14 b 443.18
1898 507.50 157.00 156.00 24.50 6.00 0.00 a 0.00 0.00 z 0.00 z 0.00 b 192.00 419.50 1462.50
1899 436.00 344.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 d 0.00 0.00 24.00 11.50 233.05 c 1048.55
1900 277.21 e 269.50 72.00 11.50 0.00 0.00 0.00 0.00 0.00 17.50 121.00 334.50 1103.21
1901 378.00 278.50 202.50 100.86 a 6.50 0.00 0.00 0.00 0.00 17.00 48.00 413.33 a 1444.70
1902 355.00 259.00 224.00 1.00 m 2.50 0.00 0.00 0.00 c 0.00 0.00 101.50 272.50 1214.50
1903 330.50 375.00 192.50 36.50 7.50 0.00 a 0.00 0.00 0.00 a 1.03 a 64.14 a 291.50 1298.67
1904 403.55 c 139.00 71.00 33.50 0.52 a 0.00 t 0.00 o 0.00 0.00 3.00 21.00 f 302.00 952.57
1905 263.50 213.50 134.50 44.00 30.50 0.00 0.00 0.00 0.00 1.00 124.00 447.50 1258.50
1906 366.50 162.50 129.50 83.00 2.00 0.00 0.00 0.00 0.00 26.50 222.50 0.00 z 992.50
1907 0.00 z 0.00 z 0.00 z 0.00 w 3.00 0.00 0.00 0.00 0.00 3.50 147.50 351.50 505.50
1908 334.00 293.00 134.50 33.50 10.00 0.50 0.00 0.00 0.00 74.00 148.50 342.00 1370.00
1909 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 u 0.00 0.00 10.00 162.00 472.50 644.50
1910 393.00 295.50 44.00 13.00 0.00 0.00 0.00 0.00 0.00 2.00 127.50 303.00 1178.00
1911 278.50 331.50 72.00 19.50 0.00 0.00 0.00 0.00 0.00 21.00 210.00 553.50 1486.00
1912 382.00 268.50 200.98 a 92.00 5.68 a 0.00 0.00 0.00 0.00 42.00 131.50 464.00 1586.67
1913 527.50 344.00 249.50 32.00 13.50 0.00 0.00 0.00 0.00 4.50 114.00 416.50 1701.50
1914 307.00 279.50 100.23 a 15.50 6.00 0.00 0.00 0.00 0.00 2.50 66.00 443.00 1219.73
1915 469.00 312.00 224.00 49.00 42.50 0.00 0.00 0.00 0.00 3.00 158.04 b 377.50 1635.04
1916 416.50 159.50 100.50 38.00 1.50 0.00 0.00 0.00 0.00 11.88 a 213.00 511.50 1452.38
1917 454.50 313.00 282.50 76.00 10.50 0.00 0.00 0.00 0.00 0.00 104.50 283.50 1524.50
1918 462.00 237.50 95.00 37.50 0.50 0.00 s 0.00 0.00 j 0.00 h 12.50 204.00 448.50 1497.50
1919 422.50 405.00 257.50 31.50 3.00 0.00 0.00 0.00 0.00 29.00 177.00 286.00 1611.50
1920 310.00 221.50 203.50 83.50 0.00 0.00 0.00 0.00 0.00 72.50 161.00 449.00 1501.00
1921 374.50 137.00 g 63.00 62.14 b 27.50 0.00 0.00 0.00 0.00 16.50 99.50 250.00 893.14
1922 463.00 291.50 286.50 133.50 15.50 0.00 0.00 0.00 0.00 g 23.50 256.50 287.00 1757.00
1923 260.00 241.00 205.00 37.50 0.00 0.00 0.00 0.00 0.00 13.00 137.00 398.00 1291.50
1924 449.00 208.00 286.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 430.79 b 1374.29
1925 444.50 176.75 d 72.00 54.50 0.00 a 0.00 j 0.00 j 0.00 0.00 16.02 a 188.28 a 425.00 1377.04
1926 528.00 287.50 94.50 f 54.83 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 328.17 b 1198.50
1927 252.13 a 203.00 162.50 84.00 2.00 0.00 0.00 0.00 0.00 9.50 o 56.90 a 407.00 1167.53
1928 361.67 a 280.50 85.50 58.00 0.00 0.00 0.00 0.00 0.00 0.00 z 154.66 a 482.00 1422.32
1929 583.50 436.50 284.00 102.00 n 1.55 a 2.00 0.00 a 0.00 c 0.00 a 0.00 z 0.00 z 272.36 c 1579.91
1930 436.50 101.00 f 163.50 18.50 57.50 0.00 0.00 a 0.00 m 0.00 p 13.00 1.50 x 222.50 i 689.00
1931 323.12 e 201.83 d 172.57 a 9.50 0.00 0.00 0.00 0.00 a 0.00 17.00 153.50 m 301.00 j 724.02
1932 282.50 p 355.50 160.00 h 78.50 18.08 a 0.00 g 0.00 c 0.00 a 0.00 44.95 a 56.50 p 419.50 j 497.03
1933 507.50 454.00 236.38 c 128.00 70.27 a 0.00 k 0.00 b 0.00 0.00 0.00 z 158.57 b 432.00 1986.71
1934 64.50 w 139.50 11.88 a 17.00 0.00 0.00 0.00 0.00 z 0.00 z 1.00 n 184.00 261.00 613.38
1935 307.00 180.50 246.00 30.50 21.00 0.00 0.00 0.00 0.00 30.00 48.00 y 0.00 z 815.00
1936 174.00 k 0.00 z 50.00 g 19.00 g 0.00 a 0.00 0.00 0.00 0.00 a 0.00 z 0.00 z 131.00 u 0.00
1937 485.00 f 251.50 129.00 41.00 0.00 0.00 f 0.00 h 0.00 z 0.00 z 1.55 a 77.50 n 215.34 c 638.39
1938 292.00 207.00 187.50 32.00 7.00 0.00 0.00 0.00 0.00 12.00 l 266.25 b 279.50 1271.25
1939 377.17 a 484.08 b 138.50 f 8.00 0.00 0.00 0.00 0.00 e 0.00 4.50 10.50 o 202.53 a 1076.28
1940 287.00 278.50 96.50 25.50 0.00 0.00 0.00 0.00 0.00 28.50 125.50 m 267.50 983.50
1941 327.00 216.74 a 207.50 140.00 7.50 0.00 0.00 0.00 0.00 43.50 76.50 n 349.00 1291.24
1942 335.00 354.00 210.50 26.00 n 0.00 z 0.00 z 0.00 0.00 0.00 26.50 51.50 j 313.50 1239.50
1943 389.50 184.00 126.00 34.50 2.00 0.00 l 0.00 0.00 0.00 31.00 103.27 d 342.50 1212.77
1944 425.50 353.00 251.50 89.46 b 2.00 0.00 0.00 0.00 0.00 0.00 242.50 323.00 1686.96
1945 374.50 254.50 236.50 102.50 0.00 0.00 0.00 0.00 0.00 0.50 201.00 259.00 m 1169.50
1946 445.00 308.00 137.50 12.50 0.00 0.00 0.00 a 0.00 0.00 14.00 217.50 263.50 1398.00
1947 445.50 147.00 98.50 29.00 0.00 0.00 0.00 0.00 0.00 2.50 247.00 391.00 1360.50
1948 315.96 e 275.50 187.55 a 34.00 0.00 f 0.00 s 0.00 e 0.00 0.00 15.50 274.50 423.00 1526.01
1949 618.50 358.00 231.00 58.97 a 0.00 a 0.00 i 0.00 t 0.00 0.00 65.50 42.00 391.12 a 1765.08
1950 389.57 a 212.50 155.00 16.50 14.00 0.00 0.00 0.00 0.00 z 0.00 64.50 202.00 1054.07
1951 435.50 284.50 178.50 39.50 24.00 0.00 a 0.00 b 0.00 f 0.00 s 8.50 154.66 a 398.00 1523.16
1952 446.00 356.00 292.00 f 54.00 0.00 a 0.00 c 0.00 a 0.00 0.00 0.00 b 41.00 u 422.00 1278.00
1953 323.78 d 334.50 177.22 a 71.00 39.27 a 0.00 n 0.00 f 0.00 f 0.00 e 37.41 b 134.00 f 466.00 1449.17
1954 380.04 d 105.78 a 196.33 a 9.00 e 7.75 c 0.00 0.00 0.00 c 0.00 d 0.00 f 25.00 s 180.00 f 698.90
1955 501.96 e 403.50 176.00 82.80 e 12.50 f 0.00 f 0.00 e 0.00 e 0.00 l 0.00 f 133.50 j 217.50 g 1164.26
1956 257.00 431.38 e 145.50 g 56.50 f 0.00 g 0.00 f 0.00 g 0.00 m 0.00 j 18.00 i 124.00 h 299.87 e 988.24
1957 240.00 h 117.83 d 106.12 e 29.40 e 0.00 w 0.00 f 0.00 h 0.00 i 0.00 f 9.00 h 183.00 l 322.40 a 575.75
1958 239.50 m 179.50 i 203.00 j 75.00 f 0.00 i 0.00 n 0.00 e 0.00 g 0.00 i 6.50 f 43.00 j 181.50 g 0.00
1959 267.00 h 183.00 l 105.00 h 1.50 h 7.50 g 0.00 e 0.00 l 0.00 e 0.00 e 28.50 f 66.00 r 281.50 g 0.00
1960 421.00 g 320.00 j 73.50 f 28.50 f 2.50 j 0.00 h 0.00 k 0.00 e 0.00 e 0.00 p 88.00 j 312.00 f 0.00
1961 206.00 f 249.57 e 149.63 e 37.00 i 0.00 z 0.00 z 0.00 f 0.00 l 0.00 g 43.50 f 115.50 l 241.00 m 399.20
1962 361.50 f 205.50 f 242.50 g 2.50 l 0.00 z 0.00 z 0.00 z 0.00 j 0.00 m 1.19 e 154.00 g 293.00 f 1.19
1963 548.50 179.00 252.00 123.50 0.00 d 0.00 g 0.00 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1103.00
1964 643.00 490.00 395.50 0.00 z 24.50 0.00 0.00 h 0.00 h 0.00 g 0.50 f 157.50 i 387.50 d 1940.50
1965 394.96 d 349.50 224.50 g 131.50 f 7.00 j 0.00 d 0.00 b 0.00 j 0.00 d 0.00 136.15 d 454.27 e 1334.89
1966 517.00 500.00 179.50 20.50 0.00 0.00 0.00 0.00 0.00 3.00 130.96 d 410.50 1761.46
1967 444.00 294.00 0.00 z 0.00 z 37.50 0.00 0.00 0.00 t 0.00 7.50 f 69.11 b 520.50 1365.11
1968 448.50 385.46 e 225.50 0.00 z 5.50 0.00 0.00 d 0.00 0.00 0.00 z 61.50 i 444.00 1508.96
1969 367.00 286.50 328.82 c 25.00 12.50 0.00 0.00 0.00 0.00 18.94 d 155.77 d 382.50 1577.04
1970 434.00 246.50 254.95 b 152.22 c 1.50 0.00 a 0.00 b 0.00 a 0.00 35.28 b 148.20 e 375.50 1648.15
1971 412.00 315.00 168.50 59.00 6.00 0.00 0.00 c 0.00 0.00 91.00 211.50 479.00 1742.00
1972 425.00 228.50 54.00 34.50 0.00 0.00 0.00 0.00 b 0.00 61.00 276.50 453.50 1533.00
1973 469.00 270.00 348.00 102.86 b 1.50 0.00 0.00 0.00 0.00 14.50 215.00 352.50 1773.36
1974 409.00 334.44 a 152.50 42.00 2.00 0.00 0.00 0.00 0.00 29.50 158.50 519.50 1647.44
1975 421.50 324.00 263.00 143.50 15.00 0.00 0.00 0.00 0.00 28.00 185.50 355.50 1736.00
1976 336.35 a 182.50 137.00 h 24.00 n 0.00 m 0.00 k 0.00 n 0.00 e 0.00 a 30.50 143.50 332.00 1024.85
1977 404.00 223.46 b 278.00 53.50 7.23 a 0.00 0.00 0.00 0.00 0.00 b 116.00 281.14 b 1363.33
1978 392.84 b 303.00 87.50 j 29.50 g 4.00 0.00 z 0.00 y 0.00 e 0.00 b 0.00 z 179.42 d 142.50 r 879.27
1979 0.00 z 0.00 z 0.00 z 0.00 z 18.00 h 0.00 f 0.00 b 0.00 b 0.00 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 401.84 279.60 179.45 51.86 8.69 0.04 0.00 0.00 0.00 18.04 151.58 369.44 1496.08
S.D. 85.05 89.81 78.45 37.47 14.08 0.27 0.00 0.00 0.00 20.71 63.70 84.34 190.02
SKEW 0.44 0.37 0.23 1.04 2.42 6.98 0.00 0.00 0.00 1.55 -0.03 -0.03 -0.30
MAX 643.00 500.00 395.50 152.22 70.27 2.00 0.00 0.00 0.00 91.00 276.50 553.50 1773.36
MIN 252.13 105.78 11.88 5.00 0.00 0.00 0.00 0.00 0.00 0.00 11.50 202.00 1103.21
NO YRS 71 75 66 65 68 60 68 67 69 64 55 66 28