ALTON, UTAH

Monthly Total Growing Degree Days

(420086)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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 1.55 a 0.00 56.50 93.00 393.50 537.00 772.50 770.19 b 559.20 e 279.00 b 16.07 b 1.50 3480.01
1929 0.00 0.00 9.00 72.41 a 345.13 a 553.00 810.50 726.43 a 437.00 282.50 55.50 3.50 3294.98
1930 0.00 7.50 11.00 242.00 129.17 a 561.50 732.63 a 660.00 436.00 176.50 60.50 0.00 3016.80
1931 2.50 0.00 30.50 130.50 361.00 567.50 864.50 793.60 a 505.00 246.00 81.50 0.00 3582.60
1932 0.00 1.55 a 5.00 120.50 293.00 563.50 762.00 741.50 546.00 209.50 40.00 0.00 3282.55
1933 0.00 a 0.00 c 10.00 40.71 b 194.00 586.00 824.00 709.68 c 569.00 344.00 69.31 a 1.03 a 3347.74
1934 0.00 13.50 170.00 241.00 490.50 484.14 a 824.00 793.00 543.50 352.50 112.50 0.00 4024.64
1935 0.00 3.92 c 7.00 146.00 251.50 637.50 744.00 754.00 537.50 225.78 a 3.50 0.00 3310.70
1936 0.00 0.00 9.50 237.78 c 430.90 a 651.72 a 787.73 c 726.95 a 480.00 a 216.50 44.50 0.00 a 3585.58
1937 0.00 0.00 1.50 48.50 458.50 557.50 760.61 c 787.50 572.50 252.50 28.00 0.55 c 3467.66
1938 0.00 0.00 0.00 a 173.50 300.00 556.50 696.50 718.00 536.50 184.50 0.00 9.50 3175.00
1939 0.00 0.00 41.00 192.00 342.50 537.93 a 780.00 784.96 c 472.76 a 183.00 73.00 34.62 a 3441.77
1940 0.00 0.00 54.50 147.93 a 431.00 702.50 779.00 784.50 470.50 262.98 a 1.03 a 8.50 3642.45
1941 0.00 a 0.00 2.50 28.00 349.00 452.00 774.50 672.00 393.00 117.00 85.50 3.50 2877.00
1942 0.00 0.00 0.50 119.00 262.50 526.00 835.00 738.66 b 520.00 252.00 56.50 5.50 3315.66
1943 17.50 0.00 27.50 228.50 338.50 426.00 756.50 704.50 571.50 233.00 30.50 0.00 j 3334.00
1944 0.00 0.00 1.00 25.00 293.50 443.50 737.00 768.50 576.00 285.50 21.50 0.00 3151.50
1945 1.50 1.50 0.00 a 106.50 318.50 459.00 771.00 715.00 511.00 255.00 24.50 2.50 3166.00
1946 0.00 0.00 13.50 231.50 289.50 610.50 776.50 732.00 566.00 116.00 5.50 6.50 3347.50
1947 0.00 8.00 24.00 123.50 455.50 482.50 801.50 728.00 645.50 266.00 9.50 0.00 3544.00
1948 0.00 0.00 0.00 119.50 349.00 533.50 769.00 748.00 586.50 244.00 9.50 0.00 3359.00
1949 0.00 0.00 0.00 212.07 a 286.00 516.00 755.00 717.00 574.66 a 191.50 137.50 3.50 3393.22
1950 0.00 4.15 a 18.50 155.50 329.50 561.00 779.50 744.00 493.50 417.50 137.50 35.00 3675.65
1951 4.00 20.50 16.50 135.00 341.00 541.00 868.00 709.90 a 565.00 195.50 18.00 0.00 3414.40
1952 0.00 0.00 0.00 115.50 376.00 511.50 775.50 813.00 604.00 457.00 54.00 2.50 3709.00
1953 8.00 13.00 39.00 146.00 154.00 587.00 866.00 710.50 610.00 252.00 80.00 3.00 3468.50
1954 8.00 22.50 10.00 257.00 443.00 548.50 877.50 724.50 554.00 356.50 115.00 1.03 a 3917.53
1955 0.00 3.11 a 12.50 85.00 0.00 z 544.00 788.00 835.50 594.00 384.50 57.00 6.50 3310.11
1956 1.55 a 0.00 65.50 127.50 385.43 a 685.00 805.50 725.00 663.00 257.50 56.38 a 2.00 3774.36
1957 0.00 b 36.00 24.00 71.00 215.00 642.00 800.00 775.50 574.50 199.00 16.50 5.00 3358.50
1958 0.50 19.50 0.00 117.50 473.50 626.50 784.00 904.00 555.50 331.50 66.00 48.00 3926.50
1959 8.50 0.00 9.82 a 197.50 296.50 668.79 a 918.50 746.50 453.50 285.00 30.00 4.50 3619.11
1960 0.00 0.00 78.50 194.00 366.50 699.00 888.50 838.00 640.00 213.50 35.00 0.00 3953.00
1961 0.00 4.00 24.00 120.00 327.00 719.50 920.00 789.00 392.00 230.50 13.50 0.00 3539.50
1962 4.00 0.00 8.50 229.50 274.50 551.50 751.50 794.00 605.50 292.50 97.50 9.00 3618.00
1963 0.00 48.50 20.00 58.50 406.00 496.00 839.50 769.83 a 551.00 338.00 43.50 2.00 3572.83
1964 4.00 0.00 12.00 88.00 293.00 521.00 873.00 774.50 487.00 405.00 26.50 0.50 3484.50
1965 4.00 1.50 10.00 112.00 233.00 420.00 752.00 731.00 371.50 385.50 56.50 8.00 3085.00
1966 0.00 0.00 75.50 188.50 421.50 593.00 821.00 806.00 560.00 240.00 72.50 2.00 3780.00
1967 1.00 1.00 45.50 12.50 310.00 445.50 847.00 810.50 515.50 319.50 94.00 0.00 3402.00
1968 0.00 14.50 35.50 63.00 305.50 598.50 772.42 a 618.50 470.00 257.50 31.50 0.00 3166.92
1969 2.00 0.00 15.50 117.50 434.00 518.50 800.32 a 837.00 582.50 126.50 22.50 5.50 3461.82
1970 5.50 16.00 7.00 47.50 376.50 615.50 836.00 829.50 425.00 192.50 28.45 a 0.00 3379.45
1971 21.50 12.00 58.00 128.00 212.50 578.00 860.00 811.00 469.50 207.50 17.50 0.00 3375.50
1972 0.00 23.50 159.50 158.50 386.50 626.90 a 891.50 763.00 468.00 206.00 1.00 0.00 3684.40
1973 0.00 0.00 0.00 59.50 394.00 575.50 799.50 753.00 497.00 263.50 57.50 0.50 3400.00
1974 0.00 0.00 61.00 93.50 436.07 a 499.00 i 815.50 780.00 555.50 302.77 a 21.00 0.00 3065.33
1975 4.00 0.50 5.50 30.00 255.00 517.50 787.50 698.00 545.00 230.00 59.00 6.00 3138.00
1976 8.00 3.00 13.50 83.00 427.50 553.50 835.00 689.50 506.38 a 235.08 a 106.50 0.00 3460.96
1977 1.50 37.00 10.50 230.50 213.50 686.50 818.50 786.00 538.00 327.00 59.50 20.50 3729.00
1978 0.00 0.00 38.50 102.00 327.00 617.50 840.00 752.50 514.00 412.50 60.00 0.00 3664.00
1979 0.00 0.00 1.50 135.00 391.00 597.00 814.78 a 708.00 658.50 362.50 2.00 12.50 3682.78
1980 0.00 0.00 0.00 145.50 257.00 571.50 816.00 711.00 541.50 284.50 107.00 47.50 3481.50
1981 10.16 b 18.50 6.50 237.50 338.93 a 703.50 873.00 761.50 554.50 177.50 82.00 10.00 3773.59
1982 0.00 6.00 5.00 121.00 345.50 538.00 751.50 750.50 498.50 137.00 4.00 0.00 3157.00
1983 0.00 0.00 6.00 37.00 320.50 565.00 764.50 751.50 599.00 287.50 62.00 0.00 3393.00
1984 2.00 0.00 0.00 z 96.00 529.00 566.00 831.00 782.00 588.50 172.00 26.00 0.00 3592.50
1985 0.00 0.00 9.50 238.00 373.50 676.00 860.50 782.50 402.50 247.00 35.50 0.00 3625.00
1986 13.00 35.00 142.50 150.00 399.50 674.50 734.00 830.50 392.00 171.50 39.00 0.00 3581.50
1987 0.00 3.00 6.00 238.00 324.00 658.00 727.00 713.00 542.00 356.00 29.00 0.50 3596.50
1988 0.00 12.50 45.50 153.00 335.00 664.00 851.50 755.50 492.50 431.50 68.50 3.00 3812.50
1989 0.00 11.00 97.00 286.50 356.00 601.50 888.50 674.00 507.50 220.50 57.00 0.00 3699.50
1990 13.50 0.00 58.50 154.00 289.00 629.50 807.00 682.50 588.00 303.50 53.50 0.00 3579.00
1991 0.00 9.50 0.00 90.00 275.00 522.00 838.00 794.00 572.50 389.00 58.00 0.00 3548.00
1992 0.00 0.00 18.00 288.50 418.00 549.50 743.00 761.00 471.50 265.50 0.50 0.00 3515.50
1993 0.00 0.00 1.00 98.50 301.00 436.00 629.00 201.50 w 122.00 v 232.00 5.50 0.00 1703.00
1994 4.00 0.00 54.00 176.50 385.00 726.50 881.00 891.00 588.50 197.50 10.50 0.00 z 3914.50
1995 0.00 22.00 52.50 111.00 235.00 489.00 756.50 838.00 613.00 324.50 119.00 15.00 3575.50
1996 2.00 70.50 50.50 201.50 438.50 695.00 926.50 860.50 513.00 283.00 59.00 0.00 4100.00
1997 0.00 0.00 97.50 144.00 475.50 587.00 792.50 782.50 580.00 238.00 56.50 0.00 3753.50
1998 0.00 0.00 38.50 95.50 245.50 453.00 841.00 830.00 536.00 170.00 19.00 4.00 3232.50
1999 1.50 4.00 62.50 92.50 296.05 a 569.00 793.60 a 727.50 539.00 356.00 134.00 0.00 a 3575.65
2000 12.50 2.50 31.50 273.00 509.00 699.31 a 626.50 i 857.50 596.00 243.00 0.00 1.50 3225.81
2001 0.00 5.19 a 64.00 177.93 a 516.00 670.00 811.00 813.50 652.00 377.00 89.48 a 0.00 4176.10
2002 6.50 10.50 72.50 267.50 415.50 742.50 973.00 833.00 561.00 193.00 24.00 0.50 4099.50
2003 14.00 3.00 59.00 100.50 441.00 660.50 982.00 850.50 636.00 464.00 4.00 0.00 4214.50
2004 0.00 0.00 167.50 162.00 400.00 659.00 842.00 784.50 522.50 213.50 21.00 6.00 3778.00
2005 3.50 0.00 32.00 133.00 408.50 536.00 919.50 735.00 526.00 291.50 67.00 10.00 3662.00
2006 0.00 5.50 4.50 150.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 160.50
Period of Record Statistics
MEAN 2.43 6.77 32.47 141.23 347.98 579.65 812.64 764.34 535.61 267.76 47.86 4.64 3537.71
S.D. 4.51 12.43 39.10 68.13 84.71 79.40 61.40 54.59 65.70 80.16 36.03 9.68 272.53
SKEW 2.27 2.78 1.89 0.31 -0.14 0.03 0.27 0.12 -0.44 0.46 0.67 3.22 0.26
MAX 21.50 70.50 170.00 288.50 529.00 742.50 982.00 904.00 663.00 464.00 137.50 48.00 4214.50
MIN 0.00 0.00 0.00 12.50 129.17 420.00 629.00 618.50 371.50 116.00 0.00 0.00 2877.00
NO YRS 79 79 78 79 77 77 77 77 77 78 78 76 71