TROPIC, UTAH

Monthly Total Growing Degree Days

(428847)

Base Temperature = 40 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 22.98 b 0.00 a 61.00 133.00 428.00 683.28 a 817.00 771.50 448.00 213.00 31.50 16.00 3625.26
1894 0.00 0.50 91.50 237.00 572.50 597.50 971.50 879.50 523.50 346.00 0.00 z 0.00 z 4219.50
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 185.00 609.00 616.55 a 0.00 z 0.00 z 314.00 l 216.00 g 0.00 z 0.00 z 1410.55
1898 9.09 b 0.00 z 24.44 e 231.50 312.98 e 690.00 905.50 846.00 536.50 216.50 43.50 f 0.00 a 3772.51
1899 0.00 z 3.50 f 38.75 a 188.28 a 265.05 a 647.59 a 857.00 600.48 d 367.50 l 76.00 f 16.00 0.00 u 2613.14
1900 3.00 0.00 71.00 52.50 409.50 745.50 917.27 c 620.50 292.00 102.41 c 13.39 b 0.00 y 3227.07
1901 0.00 0.00 a 5.68 a 88.50 411.50 553.00 838.00 714.50 377.00 161.00 g 7.80 e 0.00 z 2995.98
1902 0.00 0.00 0.00 z 11.50 t 302.50 663.10 a 688.50 634.50 440.50 33.50 0.00 a 0.00 b 2762.60
1903 0.00 0.00 e 45.00 m 164.50 418.00 697.00 778.10 a 857.00 541.50 391.50 0.00 z 21.00 3868.60
1904 0.00 a 30.12 c 56.00 196.50 476.92 e 651.72 a 827.00 826.00 608.00 336.87 a 93.89 c 4.50 4107.52
1905 2.14 b 3.63 a 66.02 d 193.50 296.50 585.00 830.00 865.86 b 247.50 s 307.50 84.50 0.00 3234.65
1906 0.00 5.00 g 55.44 e 174.50 388.53 a 606.00 890.00 808.00 553.97 a 247.00 m 101.00 9.76 d 3587.20
1907 10.50 h 21.00 q 63.19 e 93.00 r 310.00 a 511.50 812.00 741.86 b 567.50 323.84 c 67.78 c 2.50 h 3397.67
1908 0.00 n 5.50 g 93.00 221.50 261.29 c 543.62 a 607.50 j 774.00 266.50 p 15.50 t 0.00 y 0.00 z 1893.41
1909 0.00 l 0.00 d 12.73 c 149.00 366.00 734.00 909.91 d 867.45 c 535.00 375.00 57.00 0.00 k 4006.09
1910 0.53 b 0.50 i 173.00 193.00 k 540.00 750.00 907.50 856.00 653.50 376.77 e 147.22 c 18.50 h 4404.53
1911 4.00 0.00 h 113.50 m 47.50 x 391.00 653.00 839.58 a 599.00 g 600.60 e 212.00 l 13.00 r 0.00 m 2488.18
1912 7.00 g 8.00 3.00 s 52.00 j 381.50 435.00 k 604.00 f 809.44 d 431.00 121.00 g 27.00 o 0.00 l 1629.94
1913 0.00 b 0.00 c 9.19 d 51.50 412.09 b 572.22 c 799.80 a 801.57 c 476.50 217.52 a 38.08 d 0.00 c 3378.46
1914 0.00 a 0.00 b 39.02 b 163.27 d 325.00 g 610.00 c 725.83 b 781.00 598.50 262.39 c 130.80 e 0.00 a 3310.81
1915 0.00 b 0.00 a 22.00 179.50 f 309.00 459.00 f 782.50 752.55 b 483.50 325.00 49.00 4.50 2728.05
1916 0.00 6.00 157.67 b 266.38 a 405.58 a 681.50 838.07 b 520.00 h 0.00 z 0.00 z 0.00 z 0.00 z 2355.20
1917 0.00 z 0.00 e 0.00 z 0.00 z 0.00 z 300.00 r 818.00 g 892.28 a 692.07 a 467.07 a 131.38 a 48.00 2230.80
1918 30.50 15.50 91.50 176.50 352.50 747.00 0.00 z 0.00 z 0.00 z 0.00 z 31.00 4.00 1448.50
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 48.50 p 548.24 d 0.00 z 17.10 b 0.00 z 0.00 z 0.00 z 15.00 0.00 580.34
1921 0.00 50.00 159.00 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 209.00
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 627.00 g 395.52 b 64.04 d 11.88 a 471.44
1923 2.14 b 22.75 d 48.64 b 223.20 e 506.52 c 568.80 e 665.00 i 578.00 k 384.50 m 19.00 z 26.00 s 1.50 i 1372.04
1924 0.00 g 32.50 j 0.50 h 108.50 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 424.00 o 994.38 e 0.00 z 517.00 210.50 30.00 0.00 1751.88
1926 0.00 a 14.00 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 14.00
1927 0.00 z 0.00 z 0.00 z 267.78 c 464.50 662.50 850.12 e 693.50 364.50 g 300.59 c 60.52 a 4.13 a 3303.63
1928 5.50 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 5.50
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 33.00 0.00 z 397.00 798.10 a 905.50 900.00 667.00 259.37 a 17.50 2.50 3979.97
1936 0.00 2.00 54.50 276.00 523.00 805.50 950.50 891.50 603.00 312.50 50.17 a 0.00 a 4468.67
1937 0.00 0.00 a 8.00 97.00 408.54 c 598.50 704.00 g 920.00 683.00 0.00 z 88.00 0.00 2803.04
1938 0.00 3.50 35.50 251.50 438.50 734.50 868.00 870.00 646.00 315.00 4.50 45.50 4212.50
1939 0.00 0.00 119.00 345.50 547.00 724.00 946.50 907.00 579.50 310.00 114.50 40.00 4633.00
1940 3.50 11.00 137.00 261.00 560.50 857.14 b 890.65 e 686.50 g 564.50 342.50 12.86 b 16.53 a 3657.19
1941 0.00 1.50 41.50 65.50 410.50 529.14 a 709.00 624.00 345.50 116.80 c 47.00 0.00 z 2890.44
1942 1.50 0.00 21.00 191.00 342.03 a 648.50 899.00 802.00 570.50 374.00 77.50 35.00 3962.03
1943 13.95 a 8.00 98.00 324.00 456.00 581.00 886.50 817.50 691.50 307.50 56.50 0.00 4240.45
1944 0.50 0.50 36.00 79.50 409.00 510.00 a 821.50 a 847.33 a 642.00 364.00 37.00 6.00 3753.33
1945 12.00 8.00 20.50 175.00 426.50 587.00 892.50 836.48 a 614.00 339.00 46.50 1.50 3958.98
1946 0.00 11.00 44.00 308.50 406.62 a 697.50 899.52 a 832.00 603.50 158.50 7.50 6.00 3974.63
1947 1.00 28.50 144.50 214.00 581.50 576.50 845.00 790.00 704.50 357.50 14.50 2.50 4260.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 856.00 797.50 647.00 324.50 19.00 0.00 2644.00
1949 0.00 0.00 28.00 309.50 393.00 617.00 899.00 821.00 654.50 298.50 204.00 12.50 4237.00
1950 0.00 34.00 66.00 284.00 426.00 687.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 58.50 1555.50
1951 0.00 a 17.92 c 24.50 h 0.00 z 469.02 d 655.86 a 908.00 788.50 626.50 250.14 b 19.66 a 0.00 l 3735.59
1952 0.00 0.00 14.43 b 250.86 a 519.52 b 603.50 854.71 c 843.20 a 647.50 452.60 a 36.21 a 7.75 a 4230.28
1953 11.50 19.70 a 63.00 208.50 294.00 732.41 a 970.00 785.00 675.00 296.00 103.50 6.50 4165.12
1954 12.00 118.50 44.00 348.50 549.45 b 630.00 947.00 731.08 a 578.57 b 373.50 148.97 a 0.00 4481.57
1955 0.00 0.00 27.50 139.00 385.43 a 612.00 823.50 872.13 a 566.50 370.00 78.33 c 8.50 3882.90
1956 11.00 1.50 78.00 184.50 457.25 a 748.50 854.00 706.50 714.50 332.00 71.50 20.00 4179.25
1957 1.50 67.50 58.38 a 123.00 318.50 695.50 851.00 767.00 592.00 256.00 14.00 6.20 a 3750.58
1958 3.00 38.00 6.00 158.50 543.00 690.00 816.00 926.50 595.50 366.00 89.50 33.50 4265.50
1959 17.00 0.00 66.00 280.50 394.50 753.50 986.50 794.63 a 538.50 391.24 b 83.00 27.00 4332.37
1960 0.00 0.00 b 132.00 247.50 455.50 752.00 996.00 879.00 682.00 268.00 60.50 8.00 4480.50
1961 2.50 10.50 47.50 172.00 412.50 809.50 912.00 825.00 482.50 342.00 0.00 z 0.00 a 4016.00
1962 5.50 44.50 62.00 299.50 292.00 629.00 795.15 a 790.00 567.00 307.00 0.00 z 0.00 z 3791.65
1963 0.00 z 0.00 z 26.50 m 0.00 z 591.00 693.46 d 1130.90 e 683.50 l 620.56 c 408.50 49.00 5.50 3498.92
1964 4.65 a 0.00 a 25.83 a 0.00 z 0.00 z 0.00 z 934.28 b 0.00 z 535.50 439.68 a 18.50 11.50 1969.94
1965 10.50 17.50 8.30 c 160.00 318.55 b 524.44 c 817.00 772.93 a 422.68 b 413.50 66.50 l 0.00 k 3465.41
1966 0.00 0.00 45.00 o 0.00 z 514.00 725.50 907.00 0.00 z 0.00 z 0.00 z 0.00 z 4.65 a 2151.15
1967 3.00 0.00 z 83.00 42.00 421.00 0.00 z 0.00 z 0.00 z 370.00 h 364.00 72.50 0.00 985.50
1968 0.00 21.00 52.50 88.50 384.00 706.00 836.00 637.50 508.50 293.50 35.00 0.00 3562.50
1969 0.50 0.00 42.50 209.00 524.00 616.00 905.50 941.37 a 621.00 159.50 42.50 5.00 4066.87
1970 8.00 18.00 25.00 79.50 448.00 694.50 914.00 941.00 469.00 232.50 43.00 0.53 b 3873.03
1971 49.50 45.50 86.50 h 156.00 283.50 639.50 937.00 901.50 490.50 220.50 12.00 1.00 3736.50
1972 0.50 31.00 169.00 f 79.00 n 443.96 c 696.50 905.50 810.50 509.50 246.50 3.00 0.00 a 3646.96
1973 0.00 0.00 0.00 121.50 431.50 633.00 869.00 799.50 461.00 275.00 69.50 0.00 3660.00
1974 0.00 0.00 95.00 117.50 452.00 812.50 849.50 780.00 561.50 309.00 18.00 0.00 3995.00
1975 6.50 1.00 17.50 45.50 275.50 540.50 847.50 696.00 539.50 242.50 63.50 1.50 3277.00
1976 5.00 4.50 24.50 97.00 445.50 564.00 881.00 670.00 510.00 223.00 119.50 0.00 3544.00
1977 4.50 46.50 4.00 234.50 252.50 728.50 862.50 807.55 a 566.00 321.00 66.50 16.50 3910.55
1978 0.00 1.00 84.00 158.00 294.00 626.00 823.50 744.00 494.00 412.00 66.00 0.00 3702.50
1979 0.00 a 0.00 8.50 173.50 403.50 599.00 851.00 745.00 649.00 406.00 2.50 5.50 3843.50
1980 0.00 3.50 1.00 172.00 285.50 566.00 846.00 746.50 555.50 319.00 98.00 37.50 3630.50
1981 14.50 25.50 28.00 267.50 393.00 763.50 900.00 798.00 588.50 200.50 75.00 0.00 4054.00
1982 0.00 11.00 26.50 125.00 403.00 588.00 819.00 800.00 528.50 135.50 9.00 0.00 3445.50
1983 0.00 0.50 36.00 63.00 357.00 604.00 805.50 794.00 625.00 269.00 59.50 0.00 3613.50
1984 6.00 4.50 32.00 123.50 539.00 603.00 882.00 816.00 581.50 173.00 23.79 a 0.00 3784.29
1985 0.00 3.00 21.50 276.50 400.50 730.50 909.50 790.50 408.50 262.00 52.00 14.50 3869.00
1986 9.50 62.00 161.00 176.50 437.00 715.50 793.00 869.00 381.00 179.00 31.00 0.00 3814.50
1987 0.00 0.50 8.00 261.00 394.50 717.50 763.50 761.50 606.50 400.00 42.00 2.50 3957.50
1988 0.00 19.00 48.00 184.00 415.00 727.00 964.50 814.50 517.00 478.00 82.50 6.00 4255.50
1989 0.00 20.00 139.00 359.50 454.50 686.50 650.00 j 761.50 556.00 275.00 96.50 9.00 3357.50
1990 1.00 8.00 104.50 247.50 365.50 714.00 888.00 770.50 622.00 271.00 43.50 0.00 4035.50
1991 0.00 9.50 11.50 84.00 280.00 542.00 874.00 862.50 653.50 453.00 59.50 0.00 3829.50
1992 0.00 9.00 56.50 370.50 503.50 649.00 825.00 845.50 569.50 410.00 15.00 0.00 4253.50
1993 0.00 0.00 86.00 226.50 455.50 581.50 777.50 782.50 564.00 279.50 20.00 0.00 3773.00
1994 8.50 5.00 113.50 227.00 458.00 775.50 963.00 931.50 634.00 253.00 25.50 0.00 4394.50
1995 0.00 75.00 88.50 144.00 309.50 561.50 0.00 z 880.50 659.00 345.50 148.50 2.00 l 3212.00
1996 3.00 115.50 74.50 255.00 540.50 776.00 1059.50 944.00 579.00 294.50 53.00 6.50 4701.00
1997 3.00 2.50 171.00 189.00 579.00 663.00 876.50 831.00 623.00 250.50 66.00 0.50 4255.00
1998 1.00 0.00 z 94.50 123.00 337.00 522.50 943.00 893.50 608.00 212.50 30.50 9.00 3774.50
1999 10.00 4.67 a 108.50 a 100.00 364.50 563.50 989.00 886.50 0.00 z 0.00 z 0.00 z 0.00 z 3026.67
Period of Record Statistics
MEAN 3.83 14.27 59.55 189.82 417.16 657.45 864.99 807.31 564.71 301.43 55.49 8.07 3993.36
S.D. 7.50 23.69 45.15 80.93 88.54 81.04 119.35 77.68 86.30 88.39 40.94 12.83 328.73
SKEW 3.59 2.60 0.85 0.15 0.15 0.15 -4.27 -0.56 -0.75 -0.41 1.06 2.15 0.00
MAX 49.50 118.50 173.00 370.50 609.00 857.14 1130.90 944.00 714.50 478.00 204.00 58.50 4701.00
MIN 0.00 0.00 0.00 42.00 252.50 510.00 17.10 600.48 292.00 33.50 0.00 0.00 3277.00
NO YRS 85 80 79 77 88 85 82 80 80 79 79 75 48