TROPIC, UTAH

Monthly Total Growing Degree Days

(428847)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199908
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 0.00 b 0.00 a 16.50 8.00 164.00 383.28 a 507.00 461.50 158.00 10.00 0.00 0.00 1708.28
1894 0.00 0.00 8.00 36.50 272.50 314.00 661.50 569.50 258.00 100.50 0.00 z 0.00 z 2220.50
1895 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
1896 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
1897 0.00 z 0.00 l 0.00 k 22.50 301.50 318.10 a 0.00 z 0.00 z 134.00 l 30.50 g 0.00 z 0.00 z 642.10
1898 0.00 b 0.00 z 0.00 e 46.00 81.08 e 397.50 595.50 536.00 236.50 35.00 1.00 f 0.00 a 1927.58
1899 0.00 z 0.00 f 1.55 a 17.07 a 51.15 a 358.45 a 547.00 290.48 d 187.50 l 7.00 f 0.00 0.00 u 1265.70
1900 0.00 0.00 0.00 1.00 148.00 445.50 607.27 c 310.50 67.00 4.43 c 0.00 b 0.00 y 1583.70
1901 0.00 0.00 a 0.00 a 0.00 135.00 253.00 528.00 404.50 109.50 3.00 g 0.00 e 0.00 z 1430.00
1902 0.00 0.00 0.00 z 0.00 t 74.50 366.21 a 388.00 324.50 185.50 0.00 0.00 a 0.00 b 1338.71
1903 0.00 0.00 e 0.50 m 39.00 162.50 397.00 468.10 a 547.00 248.00 111.00 0.00 z 0.00 1972.60
1904 0.00 a 0.00 c 0.00 41.00 191.37 e 351.72 a 517.00 516.00 310.00 68.20 a 5.56 c 0.00 2000.85
1905 0.00 b 0.00 a 0.00 d 8.00 78.00 285.00 520.00 555.86 b 137.50 s 76.50 0.00 0.00 1523.36
1906 0.00 0.00 g 0.00 e 15.00 99.20 a 306.00 580.00 498.00 258.10 a 90.50 m 6.50 0.00 d 1762.80
1907 0.00 h 0.00 q 3.58 e 4.00 r 69.23 a 218.50 502.00 431.86 b 276.00 61.45 c 1.11 c 0.00 h 1563.73
1908 0.00 n 0.00 g 11.00 27.50 40.41 c 255.52 a 397.50 j 464.00 127.50 p 0.00 t 0.00 y 0.00 z 798.43
1909 0.00 l 0.00 d 0.00 c 13.00 89.50 434.00 599.91 d 557.45 c 236.00 94.00 0.00 0.00 k 2023.85
1910 0.00 b 0.00 i 5.00 55.00 k 251.50 450.00 597.50 546.00 353.50 104.33 e 10.00 c 0.00 h 2317.83
1911 0.00 0.00 h 6.50 m 3.00 x 110.50 353.00 529.58 a 359.00 g 303.60 e 36.00 l 0.00 r 0.00 m 1296.68
1912 0.00 g 0.00 0.00 s 0.00 j 128.50 245.00 k 354.00 f 499.44 d 148.50 17.00 g 0.00 o 0.00 l 776.44
1913 0.00 b 0.00 c 0.00 d 0.00 148.05 b 277.22 c 489.80 a 491.57 c 206.00 23.25 a 0.00 d 0.00 c 1635.90
1914 0.00 a 0.00 b 0.00 b 11.54 d 93.50 g 310.56 c 415.83 b 471.00 298.50 40.41 c 16.20 e 0.00 a 1564.03
1915 0.00 b 0.00 a 0.00 10.50 f 90.50 231.50 f 472.50 442.55 b 201.50 52.50 0.50 0.00 1260.05
1916 0.00 0.00 8.55 b 51.72 a 124.52 a 381.50 528.07 b 290.00 h 0.00 z 0.00 z 0.00 z 0.00 z 1094.36
1917 0.00 z 0.00 e 0.00 z 0.00 z 0.00 z 180.00 r 578.00 g 582.28 a 393.10 a 197.37 a 20.69 a 0.00 1193.44
1918 3.50 0.00 1.50 17.00 94.00 452.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 568.00
1919 0.00 b 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
1920 0.00 z 0.00 z 0.00 z 0.00 p 241.69 d 0.00 z 0.00 b 0.00 z 0.00 z 0.00 z 0.00 0.00 241.69
1921 0.00 2.00 12.00 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 14.00
1922 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 397.00 g 129.34 b 1.15 d 0.00 a 130.50
1923 0.00 b 0.00 d 0.00 b 20.40 e 203.71 c 271.80 e 445.00 i 378.00 k 219.00 m 9.00 z 0.00 s 0.00 i 495.91
1924 0.00 g 0.00 j 0.00 h 11.50 p 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
1925 0.00 0.00 z 0.00 z 0.00 z 0.00 z 274.00 o 684.38 e 0.00 z 228.00 10.00 0.00 0.00 922.38
1926 0.00 a 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 z 73.33 c 170.50 362.50 540.12 e 383.50 153.00 g 48.71 c 0.00 a 0.00 a 1578.66
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 0.00 z 0.00 z 0.00 0.00 z 135.00 498.10 a 595.50 590.00 369.50 65.62 a 0.00 0.00 2253.72
1936 0.00 0.00 0.00 66.50 234.00 510.00 640.50 581.50 313.00 84.00 0.00 a 0.00 a 2429.50
1937 0.00 0.00 a 0.00 13.50 111.82 c 315.50 464.00 g 610.00 383.00 0.00 z 26.00 0.00 1459.82
1938 0.00 0.00 0.00 73.00 189.50 434.50 558.00 560.00 346.00 59.50 0.00 1.50 2222.00
1939 0.00 0.00 6.00 81.50 242.50 424.00 636.50 597.00 279.50 59.00 3.00 0.00 2329.00
1940 0.00 0.00 11.50 43.50 250.50 557.14 b 580.65 e 446.50 g 264.50 84.50 0.00 b 0.00 a 1792.30
1941 0.00 0.00 0.00 2.00 121.00 231.72 a 399.00 314.00 84.50 5.54 c 0.50 0.00 z 1158.26
1942 0.00 0.00 0.00 7.00 95.07 a 348.50 589.00 492.00 271.50 118.50 0.50 0.00 1922.07
1943 0.00 a 0.00 1.00 85.00 174.00 284.00 576.50 507.50 391.50 86.50 0.00 0.00 2106.00
1944 0.00 0.00 0.00 0.00 127.00 218.79 a 511.50 a 537.33 a 342.00 83.50 0.00 0.00 1820.13
1945 0.00 0.00 0.00 32.50 132.50 292.00 582.50 526.48 a 315.00 81.00 4.00 0.00 1965.98
1946 0.00 0.00 0.00 88.50 114.70 a 397.50 589.52 a 522.00 303.50 9.50 0.00 0.00 2025.22
1947 0.00 0.00 8.00 31.00 283.00 278.50 535.00 480.00 404.50 92.00 0.00 0.00 2112.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 546.00 487.50 347.00 72.50 0.00 0.00 1453.00
1949 0.00 0.00 0.00 72.50 109.00 323.50 589.00 511.00 354.50 86.50 4.50 0.00 2050.50
1950 0.00 0.00 0.00 65.50 175.50 387.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 628.00
1951 0.00 a 0.00 c 0.00 h 0.00 z 184.28 d 355.86 a 598.00 478.50 326.50 37.41 b 0.00 a 0.00 l 1980.55
1952 0.00 0.00 0.00 b 39.31 a 226.09 b 303.50 544.71 c 533.20 a 351.50 143.63 a 0.00 a 0.00 a 2141.94
1953 0.00 0.00 a 0.00 43.00 68.00 432.41 a 660.00 475.00 375.00 63.00 0.50 0.00 2116.91
1954 0.00 0.00 0.00 91.50 257.62 b 330.50 637.00 421.08 a 278.57 b 106.50 17.07 a 0.00 2139.84
1955 0.00 0.00 0.00 6.50 112.12 a 320.00 513.50 562.13 a 270.50 103.00 0.00 c 0.00 1887.75
1956 0.00 0.00 1.50 13.00 165.33 a 448.50 544.00 396.50 414.50 83.50 1.00 0.00 2067.83
1957 0.00 0.50 0.00 a 4.50 89.00 396.50 541.00 457.00 293.00 44.00 0.00 0.00 a 1825.50
1958 0.00 0.00 0.00 21.50 250.00 390.00 506.00 616.50 295.50 127.50 0.00 0.00 2207.00
1959 0.00 0.00 0.00 67.50 119.00 453.50 676.50 484.63 a 247.00 135.22 b 0.50 0.00 2183.86
1960 0.00 0.00 b 14.50 60.50 175.00 452.00 686.00 569.00 382.00 55.00 6.50 0.00 2400.50
1961 0.00 0.00 0.50 23.50 144.50 509.50 602.00 515.00 183.50 85.50 0.00 z 0.00 a 2064.00
1962 0.00 0.00 5.00 60.50 76.00 334.00 485.15 a 480.00 268.50 44.00 0.00 z 0.00 z 1753.15
1963 0.00 z 0.00 z 0.00 m 0.00 z 282.50 393.46 d 820.90 e 493.50 l 320.56 c 115.50 1.00 0.00 1933.92
1964 0.00 a 0.00 a 0.00 a 0.00 z 0.00 z 0.00 z 624.28 b 0.00 z 241.00 150.87 a 0.00 0.00 1016.14
1965 0.00 0.00 0.00 c 28.50 91.40 b 225.00 c 507.00 462.93 a 159.11 b 127.50 0.00 l 0.00 k 1601.44
1966 0.00 0.00 0.00 o 0.00 z 215.00 426.00 597.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 a 1238.00
1967 0.00 0.00 z 0.00 0.00 181.00 0.00 z 0.00 z 0.00 z 151.50 h 88.50 2.00 0.00 271.50
1968 0.00 0.00 1.00 3.00 125.50 410.00 526.00 330.00 213.00 53.00 0.00 0.00 1661.50
1969 0.00 0.00 0.00 24.50 216.50 316.00 595.50 631.37 a 321.00 29.50 0.00 0.00 2134.37
1970 0.00 0.00 0.00 4.50 161.50 397.50 604.00 631.00 176.00 41.50 1.50 0.00 b 2017.50
1971 1.50 2.00 6.00 h 18.00 46.50 345.50 627.00 591.50 216.50 76.50 0.00 0.00 1925.00
1972 0.00 0.00 15.50 f 0.00 n 153.34 c 396.50 595.50 500.50 211.50 59.50 0.00 0.00 a 1916.84
1973 0.00 0.00 0.00 7.00 165.50 337.00 559.00 489.50 171.00 39.50 0.00 0.00 1768.50
1974 0.00 0.00 5.50 1.50 172.00 512.50 539.50 470.00 267.50 68.00 0.00 0.00 2036.50
1975 0.00 0.00 0.00 0.50 67.00 247.50 537.50 386.00 245.00 55.00 7.00 0.00 1545.50
1976 0.00 0.00 0.00 0.00 153.00 266.00 571.00 360.00 211.00 34.00 5.00 0.00 1600.00
1977 0.00 0.00 0.00 40.50 48.50 428.50 552.50 497.55 a 268.00 61.50 0.50 0.00 1897.55
1978 0.00 0.00 3.00 15.50 66.00 327.00 513.50 434.00 227.00 151.50 4.00 0.00 1741.50
1979 0.00 a 0.00 0.00 18.00 145.50 304.50 541.00 435.00 349.00 167.50 0.00 0.00 1960.50
1980 0.00 0.00 0.00 26.50 60.50 268.50 536.00 436.50 255.50 152.50 5.50 0.00 1741.50
1981 0.00 0.00 0.00 70.00 129.00 466.00 590.00 488.00 288.50 28.50 0.50 0.00 2060.50
1982 0.00 0.00 0.00 17.00 124.50 288.50 509.00 490.00 248.00 0.50 0.00 0.00 1677.50
1983 0.00 0.00 0.00 0.00 146.00 304.00 495.50 484.00 329.00 23.50 0.00 0.00 1782.00
1984 0.00 0.00 0.00 7.00 259.00 307.00 572.00 506.00 283.00 35.50 0.00 a 0.00 1969.50
1985 0.00 0.00 0.00 62.50 118.50 432.00 599.50 480.50 130.00 36.00 0.00 0.00 1859.00
1986 0.00 10.00 10.00 24.50 184.00 415.50 483.00 559.00 141.50 10.50 0.00 0.00 1838.00
1987 0.00 0.00 0.00 57.50 113.50 417.50 453.50 451.50 307.50 125.50 0.00 0.00 1926.50
1988 0.00 0.00 0.00 16.50 159.50 429.00 654.50 504.50 232.00 170.50 3.50 0.00 2170.00
1989 0.00 0.00 5.00 110.00 168.50 386.50 440.00 j 451.50 257.00 75.50 1.00 0.00 1455.00
1990 0.00 0.00 1.00 32.50 88.50 414.00 578.00 460.50 328.00 44.00 0.00 0.00 1946.50
1991 0.00 0.00 0.00 0.00 56.50 243.50 564.00 552.50 353.50 206.00 0.00 0.00 1976.00
1992 0.00 0.00 0.00 97.50 195.00 349.00 515.00 535.50 269.50 117.50 0.00 0.00 2079.00
1993 0.00 0.00 0.00 41.00 181.50 290.00 467.50 472.50 268.00 64.50 0.00 0.00 1785.00
1994 0.00 0.00 2.00 63.50 164.50 475.50 653.00 621.50 334.00 31.50 0.00 0.00 2345.50
1995 0.00 1.50 1.50 11.50 52.00 278.50 0.00 z 570.50 360.50 87.50 9.50 0.00 l 1373.00
1996 0.00 5.00 0.00 65.50 236.50 476.00 749.50 634.00 292.50 116.00 0.00 0.00 2575.00
1997 0.00 0.00 9.00 41.00 284.00 363.00 566.50 521.00 323.00 53.00 7.50 0.00 2168.00
1998 0.00 0.00 z 12.50 8.50 69.50 226.00 633.00 583.50 308.00 20.00 0.00 0.00 1861.00
1999 0.00 0.00 a 0.00 a 8.00 106.00 275.00 679.00 576.50 0.00 z 0.00 z 0.00 z 0.00 z 1644.50
Period of Record Statistics
MEAN 0.06 0.26 2.10 32.00 148.54 360.09 558.68 497.34 272.96 74.70 2.21 0.02 1990.86
S.D. 0.41 1.28 4.00 28.44 65.74 79.32 95.48 77.61 75.68 46.85 4.84 0.17 227.43
SKEW 7.53 6.28 1.95 0.79 0.44 0.17 -2.18 -0.56 -0.48 0.61 3.04 8.49 0.24
MAX 3.50 10.00 16.50 110.00 301.50 557.14 820.90 634.00 414.50 206.00 26.00 1.50 2575.00
MIN 0.00 0.00 0.00 0.00 40.41 218.50 0.00 290.48 67.00 0.00 0.00 0.00 1545.50
NO YRS 85 80 79 77 88 85 82 80 80 79 79 75 48