UTAH LAKE LEHI, UTAH

Monthly Total Growing Degree Days

(428973)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200311
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
1928 0.50 0.00 108.50 185.00 638.00 646.00 972.50 904.50 639.00 321.50 45.00 5.00 4465.50
1929 0.00 0.00 44.50 168.00 447.00 695.50 1059.50 978.00 570.00 323.00 3.50 26.50 4315.50
1930 1.50 16.00 64.50 398.50 417.50 748.00 1012.00 938.50 585.50 211.50 9.50 0.00 4403.00
1931 0.00 0.50 59.00 278.00 494.00 858.00 1093.00 968.00 630.00 399.00 63.50 1.50 4844.50
1932 0.00 6.00 45.00 236.50 536.00 709.00 962.00 933.00 599.50 230.00 37.00 1.50 4295.50
1933 0.00 0.00 41.00 150.00 328.00 868.00 1090.00 876.50 653.00 362.00 7.00 10.50 4386.00
1934 2.50 25.00 175.00 393.50 705.50 717.00 1068.50 1019.00 568.00 347.50 102.41 a 1.50 5125.41
1935 2.50 10.50 36.34 b 221.00 383.50 780.50 1006.00 967.50 669.50 268.00 6.00 1.50 4352.84
1936 1.00 3.00 42.00 346.00 576.50 831.00 1014.50 955.50 551.50 277.00 6.00 1.00 4605.00
1937 0.00 2.00 44.00 140.00 589.00 708.50 1015.00 987.00 696.50 322.00 59.00 9.50 4572.50
1938 2.50 29.00 75.00 279.50 429.50 769.00 917.50 931.50 719.50 344.00 5.00 4.00 4506.00
1939 0.00 0.00 95.00 322.00 603.00 693.50 988.50 924.50 644.00 256.00 52.00 30.00 4608.50
1940 0.00 29.00 107.00 268.50 620.00 802.50 1039.00 1014.00 683.00 351.00 31.50 0.00 4945.50
1941 0.00 38.00 80.00 157.24 a 555.00 671.50 955.50 935.00 478.50 203.00 57.50 14.50 4145.74
1942 2.00 0.00 11.50 265.00 349.00 691.00 1030.00 925.50 613.97 a 324.00 72.50 6.00 4290.47
1943 19.50 17.50 117.00 446.38 a 479.50 671.00 1004.00 985.50 684.00 381.50 67.50 1.50 4874.88
1944 0.00 4.00 19.50 171.92 d 517.18 a 625.00 984.00 654.00 j 600.54 b 280.50 g 61.00 f 1.50 2923.64
1945 0.00 a 12.00 44.50 167.50 515.00 552.00 963.50 963.50 574.50 355.47 a 55.50 1.50 4204.97
1946 0.00 3.50 110.00 361.00 468.50 801.00 1040.05 a 971.00 611.00 171.00 23.00 28.50 4588.55
1947 2.00 11.00 98.50 205.50 603.50 657.41 a 966.00 936.00 667.00 407.50 18.50 3.50 4576.41
1948 2.00 0.50 23.50 259.50 522.00 739.50 977.50 936.50 656.50 277.50 34.00 0.50 4429.50
1949 0.00 0.00 48.00 331.50 540.00 686.00 995.50 909.50 664.00 211.50 49.00 0.00 4435.00
1950 0.50 17.50 42.00 235.00 366.50 674.50 894.00 860.00 600.50 430.50 65.50 4.00 4190.50
1951 0.00 21.50 48.00 264.00 505.00 621.50 982.00 937.50 610.00 267.50 19.50 0.00 a 4276.50
1952 0.00 0.00 8.00 292.00 552.00 763.50 953.00 1021.50 714.50 381.00 25.50 0.00 4711.00
1953 14.50 6.00 109.50 201.50 327.00 728.50 1063.00 961.00 687.50 335.50 121.00 0.00 4555.00
1954 7.00 18.00 58.00 325.50 584.50 684.00 1045.50 885.00 685.50 325.50 82.00 0.00 4700.50
1955 0.00 0.00 22.00 196.00 490.50 708.00 975.50 1000.00 649.50 335.50 17.00 54.00 4448.00
1956 25.00 4.50 117.50 265.00 587.00 824.00 997.50 859.00 671.00 327.00 20.00 4.00 4701.50
1957 6.50 36.00 102.00 204.00 465.00 744.50 995.00 1014.50 595.50 310.00 7.00 4.50 4484.50
1958 0.00 54.00 46.00 90.50 i 650.00 831.00 946.00 1001.00 653.50 341.50 82.00 6.50 4611.50
1959 3.00 10.50 72.50 284.00 442.50 849.50 994.50 923.50 557.50 281.50 18.50 0.00 4437.50
1960 0.00 4.00 133.50 273.00 503.50 793.00 1017.00 879.50 717.00 289.00 82.00 7.00 4698.50
1961 0.00 15.50 55.50 217.24 a 531.00 872.00 1034.00 996.50 493.50 272.50 5.50 3.00 4496.24
1962 1.00 23.00 40.00 319.50 489.00 716.00 968.50 900.50 663.00 362.00 95.00 0.00 4577.50
1963 0.00 44.00 78.50 138.00 613.50 676.50 1028.50 1062.50 764.00 499.50 81.50 0.00 4986.50
1964 0.00 0.00 15.50 168.00 518.73 a 655.50 1039.50 923.50 567.50 354.50 53.00 22.50 4318.23
1965 4.00 10.00 32.50 284.00 431.50 695.00 1020.42 a 872.50 487.00 341.50 182.59 a 12.50 4373.50
1966 0.00 0.00 121.00 262.00 626.00 795.00 1061.00 897.50 712.00 258.50 100.50 11.50 4845.00
1967 3.50 4.00 145.00 188.00 420.00 673.50 1038.00 1012.00 691.50 325.00 115.00 0.00 4615.50
1968 0.00 13.50 111.00 143.00 455.00 761.50 994.00 811.00 543.50 297.00 50.00 1.00 4180.50
1969 14.00 0.00 53.00 252.00 697.00 688.50 1025.00 1031.50 756.50 162.00 45.00 9.00 4733.50
1970 14.50 27.50 32.00 106.00 495.50 752.50 1007.50 1026.00 526.50 175.00 58.50 8.50 4230.00
1971 1.50 2.00 103.50 228.00 467.50 742.50 1019.50 1005.00 525.52 a 228.00 23.50 7.00 4353.52
1972 1.00 39.00 191.50 229.00 523.50 806.50 987.50 918.50 582.00 364.00 18.50 0.00 4661.00
1973 0.00 5.00 21.00 146.50 536.00 713.50 967.00 930.50 447.00 h 295.50 75.52 a 13.95 a 3704.47
1974 1.00 0.50 129.50 201.50 560.07 a 816.00 1019.00 848.50 618.21 b 324.39 c 33.00 1.00 4552.67
1975 0.00 1.00 54.00 104.00 364.50 632.50 1047.00 868.00 642.50 320.69 b 42.00 0.00 4076.19
1976 0.00 11.15 c 36.50 229.50 592.50 725.00 1045.00 638.00 i 649.66 a 227.00 35.50 0.00 3551.81
1977 0.00 1.00 25.83 a 300.50 434.50 884.00 1052.40 b 984.50 414.00 l 369.23 c 70.00 21.00 4142.96
1978 0.50 11.50 129.00 241.00 457.00 708.00 987.50 864.50 554.00 344.50 39.50 0.00 4337.00
1979 0.00 0.00 13.00 209.00 464.00 747.50 979.50 901.00 723.50 380.50 4.50 0.00 4422.50
1980 4.50 11.00 14.50 257.50 421.50 714.50 1035.50 926.50 648.50 273.50 81.50 13.00 4402.00
1981 0.00 29.50 32.00 324.00 463.50 809.00 1035.00 1011.50 759.50 273.00 114.00 19.00 4870.00
1982 1.50 16.00 63.00 171.50 447.50 708.50 935.00 1000.50 623.00 179.50 11.50 2.50 4160.00
1983 0.00 22.50 95.50 118.50 365.00 727.00 921.50 1030.50 719.50 373.00 83.50 4.00 k 4456.50
1984 0.00 0.00 3.50 206.50 552.00 693.50 1003.00 965.00 653.50 205.50 51.00 0.00 4333.50
1985 0.00 0.00 27.00 340.00 591.00 737.50 1056.00 936.00 587.50 265.50 34.00 0.00 4574.50
1986 1.50 63.00 169.50 216.00 460.00 835.50 946.50 993.00 540.00 227.00 34.50 3.00 4489.50
1987 0.00 1.50 60.00 326.00 612.00 828.00 905.00 939.50 621.50 380.00 49.50 2.50 4725.50
1988 0.00 0.00 55.00 324.50 443.50 907.50 1139.50 964.50 618.00 490.50 86.50 0.00 5029.50
1989 0.00 6.50 129.50 327.50 563.00 721.50 1097.50 946.00 622.50 291.00 16.00 0.00 4721.00
1990 3.50 0.00 100.50 303.00 485.00 806.50 1040.00 944.00 781.00 227.50 29.00 0.00 4720.00
1991 0.00 3.00 34.00 155.50 395.50 711.00 1021.50 1013.00 623.50 355.00 55.50 0.00 4367.50
1992 0.00 2.50 34.50 414.50 615.00 711.50 960.50 894.00 610.00 339.00 1.50 0.00 4583.00
1993 0.00 1.00 20.50 207.50 619.50 0.00 z 0.00 z 0.00 z 0.00 z 251.50 0.00 0.50 1100.50
1994 0.00 z 0.00 42.50 273.00 639.00 945.50 1190.50 1112.50 776.50 317.50 5.00 0.00 5302.00
1995 6.00 25.00 46.50 220.56 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 298.06
1996 0.00 0.00 124.50 230.00 494.50 837.50 1045.50 1041.00 535.00 318.50 19.50 18.00 4664.00
1997 4.00 1.50 133.50 231.50 644.00 929.00 1119.50 1039.00 619.00 264.50 31.00 0.00 5016.50
1998 0.00 z 9.50 147.50 183.50 369.00 660.50 1105.00 989.50 763.00 307.00 49.00 18.00 4601.50
1999 0.00 20.50 84.50 183.00 364.50 843.50 1120.50 1010.50 570.00 339.00 109.50 4.50 4650.00
2000 2.00 23.00 21.50 388.00 512.00 796.50 985.50 1041.00 646.00 314.50 1.50 0.00 4731.50
2001 0.00 7.00 54.00 233.50 645.00 771.50 1058.00 1032.00 750.00 362.50 55.00 0.00 z 4968.50
2002 0.00 z 6.50 11.00 311.00 537.50 787.50 1114.50 943.00 622.00 242.00 8.50 0.00 z 4583.50
2003 0.00 z 0.00 z 0.00 z 238.50 479.50 774.50 0.00 z 0.00 z 566.00 0.00 z 11.00 0.00 z 2069.50
Period of Record Statistics
MEAN 2.17 11.17 68.54 245.92 509.15 749.49 1016.07 956.75 634.12 307.76 46.10 5.94 4539.24
S.D. 4.66 13.76 45.19 75.80 90.55 77.61 55.85 58.99 71.50 68.56 36.07 9.52 238.78
SKEW 3.13 1.59 0.69 0.39 -0.01 0.29 0.43 -0.04 0.07 0.10 1.02 2.57 0.33
MAX 25.00 63.00 191.50 446.38 705.50 945.50 1190.50 1112.50 781.00 499.50 182.59 54.00 5125.41
MIN 0.00 0.00 3.50 104.00 327.00 552.00 894.00 811.00 478.50 162.00 0.00 0.00 4076.19
NO YRS 72 75 75 75 75 74 73 71 72 73 74 71 63