ALTON, UTAH

Monthly Total Growing Degree Days

(420086)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1915 0.00 z 0.00 z 0.00 z 0.00 z 54.77 a 123.46 d 356.00 365.28 a 137.50 30.00 0.00 a 0.00 b 1067.01
1916 0.00 d 0.00 0.00 17.00 39.50 295.00 396.50 254.50 128.00 2.50 0.00 0.00 1133.00
1917 0.00 0.00 0.00 5.50 12.00 194.00 514.50 379.00 177.50 89.00 0.00 b 0.00 1371.50
1918 0.00 0.00 a 0.00 0.00 18.50 428.00 315.00 256.04 d 225.00 63.00 0.00 0.00 1305.54
1919 0.00 0.00 0.00 29.50 92.50 p 318.62 a 459.00 470.00 222.41 a 0.00 a 0.00 d 0.00 a 1499.53
1920 0.00 0.00 0.00 0.00 b 76.50 189.00 399.00 367.87 a 146.50 37.50 0.00 a 0.00 a 1216.37
1921 0.00 0.00 0.00 a 1.50 55.00 278.50 438.50 355.00 159.00 97.50 0.00 c 0.00 1385.00
1922 0.00 a 0.00 a 0.00 a 1.50 100.00 370.18 b 503.50 413.00 283.97 a 27.00 0.00 d 0.00 h 1699.14
1923 0.00 0.00 0.00 0.00 115.50 208.00 280.50 m 355.00 204.00 5.68 a 0.00 0.00 888.18
1924 0.00 a 0.00 0.00 6.50 182.90 a 365.50 433.00 416.50 280.50 3.50 7.50 0.00 1695.90
1925 0.00 0.00 2.50 19.50 146.00 176.50 455.50 313.50 105.00 4.00 0.00 c 0.00 1222.50
1926 0.00 a 0.00 m 6.20 a 48.62 a 148.80 a 393.62 a 484.24 b 437.00 198.10 a 82.31 b 14.50 0.00 1813.40
1927 0.00 0.00 0.00 33.50 136.92 a 283.45 a 516.67 a 353.40 a 155.00 41.00 0.00 a 0.00 1519.93
1928 0.00 a 0.00 0.00 13.50 123.00 237.00 462.50 460.19 b 261.00 e 46.50 b 0.00 b 0.00 1603.69
1929 0.00 0.00 0.00 3.10 a 81.63 a 262.00 500.50 416.43 a 145.50 60.00 1.50 0.00 1470.67
1930 0.00 0.00 0.00 35.50 7.75 a 272.50 422.63 a 350.00 156.00 6.50 0.00 0.00 1250.88
1931 0.00 0.00 0.00 0.50 95.00 275.50 554.50 483.60 a 214.50 21.00 6.50 0.00 1651.10
1932 0.00 0.00 a 0.00 8.00 60.50 286.50 452.00 431.50 246.50 33.00 0.00 0.00 1518.00
1933 0.00 a 0.00 c 0.00 0.54 b 62.00 290.50 514.00 399.68 c 269.00 68.00 0.52 a 0.00 a 1604.23
1934 0.00 0.00 2.50 29.50 191.50 197.07 a 514.00 483.00 258.50 86.00 5.50 0.00 1767.57
1935 0.00 0.00 c 0.00 9.50 41.50 337.50 434.00 444.00 238.00 40.30 a 0.00 0.00 1544.80
1936 0.00 0.00 0.00 42.78 c 142.08 a 368.28 a 477.73 c 416.95 a 197.07 a 35.50 0.00 0.00 a 1680.39
1937 0.00 0.00 0.00 0.00 164.00 262.50 450.61 c 477.50 272.50 28.50 0.00 0.00 c 1655.61
1938 0.00 0.00 0.00 a 30.00 109.00 257.50 386.50 408.00 236.50 10.00 0.00 0.00 1437.50
1939 0.00 0.00 0.00 18.00 77.50 243.62 a 470.00 474.96 c 172.76 a 10.00 0.00 0.00 a 1466.84
1940 0.00 0.00 0.00 5.69 a 125.00 402.50 469.00 474.50 173.00 34.62 a 0.00 a 0.00 1684.31
1941 0.00 a 0.00 0.00 0.00 75.50 173.50 464.50 362.00 114.50 8.50 0.00 0.00 1198.50
1942 0.00 0.00 0.00 1.00 61.00 226.50 525.00 428.66 b 221.00 49.00 0.00 0.00 1512.16
1943 0.00 0.00 0.00 22.50 91.00 153.50 446.50 394.50 271.50 41.00 0.00 0.00 j 1420.50
1944 0.00 0.00 0.00 0.00 49.00 164.50 427.00 458.50 276.00 40.00 0.00 0.00 1415.00
1945 0.00 0.00 0.00 a 9.50 55.50 179.00 461.00 405.00 242.00 42.50 0.00 0.00 1394.50
1946 0.00 0.00 0.00 43.00 53.00 310.50 466.50 422.00 266.00 9.00 0.00 0.00 1570.00
1947 0.00 0.00 0.00 7.50 175.00 197.00 491.50 418.00 345.50 69.00 0.00 0.00 1703.50
1948 0.00 0.00 0.00 8.00 105.50 235.50 459.00 438.00 286.50 25.00 0.00 0.00 1557.50
1949 0.00 0.00 0.00 37.76 a 61.50 235.50 445.00 407.00 274.66 a 33.00 0.50 0.00 1494.91
1950 0.00 0.00 a 0.00 20.00 108.00 267.50 469.50 434.00 196.00 133.50 2.00 0.00 1630.50
1951 0.00 0.00 0.00 11.50 100.00 260.00 558.00 399.90 a 265.00 25.50 0.00 0.00 1619.90
1952 0.00 0.00 0.00 2.00 99.50 211.50 465.50 503.00 307.00 148.00 0.00 0.00 1736.50
1953 0.00 0.00 0.50 25.50 10.00 291.50 556.00 400.50 310.00 53.00 0.00 0.00 1647.00
1954 0.00 0.00 0.00 44.00 161.00 263.50 567.50 414.50 255.00 104.00 7.00 0.00 a 1816.50
1955 0.00 0.00 a 0.00 2.00 0.00 z 262.00 478.00 525.50 295.00 103.00 0.00 0.00 1665.50
1956 0.00 a 0.00 1.50 12.00 110.05 a 385.00 495.50 415.00 363.00 45.00 0.00 a 0.00 1827.05
1957 0.00 b 0.00 0.00 0.00 36.50 351.00 490.00 465.50 274.50 29.50 0.00 0.00 1647.00
1958 0.00 0.00 0.00 20.00 193.50 326.50 474.00 594.00 264.00 110.00 0.00 0.00 1982.00
1959 0.00 0.00 0.00 a 26.50 55.00 368.79 a 608.50 436.50 191.00 63.50 0.00 0.00 1749.79
1960 0.00 0.00 0.00 31.00 120.50 399.00 578.50 528.00 340.00 34.50 0.00 0.00 2031.50
1961 0.00 0.00 0.00 12.50 76.00 424.00 610.00 479.00 111.50 39.00 0.00 0.00 1752.00
1962 0.00 0.00 0.00 40.00 71.00 267.00 441.50 484.00 305.50 31.00 3.50 0.00 1643.50
1963 0.00 0.00 0.00 0.00 115.50 205.00 529.50 459.83 a 251.00 71.00 0.00 0.00 1631.83
1964 0.00 0.00 0.00 0.00 78.50 231.00 563.00 464.50 193.00 124.50 0.00 0.00 1654.50
1965 0.00 0.00 0.00 13.50 54.50 131.50 442.00 421.00 131.00 110.50 0.00 0.00 1304.00
1966 0.00 0.00 7.00 17.50 143.50 295.00 511.00 496.00 260.50 14.50 0.00 0.00 1745.00
1967 0.00 0.00 0.00 0.00 103.00 157.50 537.00 500.50 215.50 65.00 2.50 0.00 1581.00
1968 0.00 0.00 0.00 0.50 78.00 316.00 462.42 a 309.00 181.50 23.50 0.00 0.00 1370.92
1969 0.00 0.00 0.00 9.50 145.50 222.00 490.32 a 527.00 282.50 13.00 0.00 0.00 1689.82
1970 0.00 0.00 0.00 0.00 109.00 317.00 526.00 519.50 143.00 23.00 0.00 a 0.00 1637.50
1971 0.00 0.00 0.00 8.00 28.00 289.00 550.00 501.00 202.00 67.00 0.00 0.00 1645.00
1972 0.00 0.00 4.00 6.50 113.50 326.90 a 581.50 453.00 169.00 38.00 0.00 0.00 1692.40
1973 0.00 0.00 0.00 1.50 130.00 278.50 489.50 443.00 205.00 44.50 0.50 0.00 1592.50
1974 0.00 0.00 0.50 0.00 151.90 a 289.00 i 505.50 470.00 255.50 52.70 a 0.00 0.00 1436.10
1975 0.00 0.00 0.00 0.00 44.00 225.50 477.50 388.00 245.00 50.00 0.50 0.00 1430.50
1976 0.00 0.00 0.00 0.00 131.00 258.50 525.00 379.50 206.38 a 36.17 a 1.00 0.00 1537.55
1977 0.00 0.00 0.00 38.50 31.00 386.50 508.50 476.00 242.00 57.50 0.00 0.00 1740.00
1978 0.00 0.00 0.00 0.50 89.00 317.50 530.00 442.50 242.50 128.50 0.00 0.00 1750.50
1979 0.00 0.00 0.00 8.50 127.50 300.50 504.78 a 398.00 358.50 122.00 0.00 0.00 1819.78
1980 0.00 0.00 0.00 17.50 47.50 273.00 506.00 401.00 241.50 123.50 4.00 0.00 1614.00
1981 0.00 b 0.00 0.00 51.00 79.57 a 403.50 563.00 451.50 254.50 13.00 0.50 0.00 1816.57
1982 0.00 0.00 0.00 11.50 77.00 241.00 441.50 440.50 229.00 0.50 0.00 0.00 1441.00
1983 0.00 0.00 0.00 0.00 119.50 265.00 454.50 441.50 301.00 18.50 0.00 0.00 1600.00
1984 0.00 0.00 0.00 z 3.00 241.00 267.00 521.00 472.00 288.50 26.50 0.00 0.00 1819.00
1985 0.00 0.00 0.00 38.00 88.50 378.50 550.50 472.50 117.00 28.00 0.00 0.00 1673.00
1986 0.00 0.00 8.00 16.50 146.50 374.50 424.00 520.50 151.50 6.00 0.00 0.00 1647.50
1987 0.00 0.00 0.00 42.50 69.50 358.00 417.00 403.00 242.00 95.50 0.00 0.00 1627.50
1988 0.00 0.00 0.00 7.00 114.00 364.00 541.50 445.50 208.00 124.50 0.50 0.00 1805.00
1989 0.00 0.00 1.00 72.00 100.50 301.50 578.50 364.00 214.50 31.50 0.00 0.00 1663.50
1990 0.00 0.00 0.00 14.00 39.00 337.00 497.00 372.50 288.00 56.00 0.00 0.00 1603.50
1991 0.00 0.00 0.00 3.00 48.50 232.00 528.00 484.00 272.50 160.50 0.00 0.00 1728.50
1992 0.00 0.00 0.00 50.00 115.00 254.50 433.00 451.00 171.50 27.00 0.00 0.00 1502.00
1993 0.00 0.00 0.00 1.50 53.50 166.00 319.00 121.50 w 42.00 v 43.00 0.00 0.00 583.00
1994 0.00 0.00 0.00 42.50 109.00 426.50 571.00 581.00 288.50 4.50 0.00 0.00 z 2023.00
1995 0.00 0.00 0.00 0.50 21.00 210.00 446.50 528.00 319.00 65.50 1.50 0.00 1592.00
1996 0.00 0.00 0.00 46.00 144.50 395.00 616.50 550.50 229.50 105.50 0.00 0.00 2087.50
1997 0.00 0.00 2.50 12.00 180.00 289.50 482.50 472.50 280.00 42.50 0.50 0.00 1762.00
1998 0.00 0.00 0.00 8.00 24.50 168.00 531.00 520.00 236.50 13.00 0.00 0.00 1501.00
1999 0.00 0.00 0.00 3.00 56.83 a 284.00 483.60 a 417.50 243.50 83.50 0.50 0.00 a 1572.43
2000 0.00 0.00 0.00 38.00 218.50 399.31 a 406.50 i 547.50 303.50 76.50 0.00 0.00 1583.31
2001 0.00 0.00 a 0.00 27.41 a 233.00 371.00 501.00 503.50 352.00 97.00 5.17 a 0.00 2090.09
2002 0.00 0.00 2.00 48.00 147.50 442.50 663.00 523.00 264.00 19.50 0.00 0.00 2109.50
2003 0.00 0.00 0.00 1.00 209.00 360.50 672.00 540.50 336.00 164.50 0.00 0.00 2283.50
2004 0.00 0.00 20.00 6.00 108.50 361.50 532.00 474.50 241.00 31.50 0.00 0.00 1775.00
2005 0.00 0.00 0.00 0.50 147.00 237.00 609.50 425.00 226.00 42.50 3.00 0.00 1690.50
2006 0.00 0.00 0.00 8.00 184.50 442.50 597.00 499.50 182.50 32.50 5.00 0.00 1951.50
2007 0.00 0.00 11.50 47.00 174.00 412.50 684.50 558.00 293.00 38.00 1.50 0.00 2220.00
2008 0.00 a 0.00 0.00 21.00 75.00 329.50 582.00 550.00 293.00 78.50 0.00 z 0.00 1929.00
2009 0.00 0.00 0.00 18.00 203.00 245.50 584.00 506.50 335.50 32.00 2.50 0.00 1927.00
2010 0.00 z 0.00 0.00 6.50 42.00 355.50 604.00 493.00 360.00 78.00 12.50 0.00 1951.50
2011 0.00 0.00 0.00 10.50 38.50 275.50 523.90 a 576.50 287.50 69.00 0.00 0.00 1781.40
2012 0.00 0.00 0.00 50.00 180.50 440.00 553.00 534.75 a 300.50 77.50 5.50 0.00 2141.75
2013 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
Period of Record Statistics
MEAN 0.00 0.00 0.73 16.10 101.51 290.61 501.07 447.83 238.90 52.51 0.99 0.00 1644.58
S.D. 0.00 0.00 2.67 16.99 54.43 79.14 68.59 66.43 62.19 38.93 2.49 0.00 225.93
SKEW 0.00 0.00 5.15 1.00 0.45 0.06 0.10 -0.32 -0.19 0.92 3.37 0.00 0.40
MAX 0.00 0.00 20.00 72.00 241.00 442.50 684.50 594.00 363.00 164.50 14.50 0.00 2283.50
MIN 0.00 0.00 0.00 0.00 7.75 123.46 315.00 254.50 105.00 0.00 0.00 0.00 1133.00
NO YRS 97 97 96 97 96 97 96 97 97 98 97 95 84