ALTAMONT, UTAH

Monthly Total Growing Degree Days

(420074)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1953 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 466.50 h 902.00 733.00 587.59 a 228.50 38.50 0.00 2489.59
1954 0.00 19.50 27.00 257.00 499.00 619.00 924.00 778.00 563.00 281.50 17.50 0.00 3985.50
1955 0.00 0.00 1.50 116.00 402.50 585.00 876.00 849.50 581.00 279.50 13.00 5.50 3709.50
1956 0.00 0.00 76.00 170.50 481.50 720.00 856.00 759.00 630.50 277.50 4.29 b 0.00 3975.29
1957 0.00 0.00 35.50 114.00 334.00 631.50 847.00 778.10 a 494.00 231.00 1.50 0.00 3466.60
1958 0.00 23.50 7.50 112.50 542.00 527.50 h 812.50 897.97 a 592.00 288.00 62.50 27.00 3365.47
1959 0.00 0.00 12.50 212.50 378.00 765.50 883.50 793.50 460.50 197.00 35.50 0.00 3738.50
1960 0.00 0.00 71.50 202.50 427.00 711.00 906.00 806.50 604.50 221.50 24.00 0.00 3974.50
1961 0.00 1.50 28.50 168.00 424.50 767.50 885.50 870.00 361.00 187.50 2.00 0.00 3696.00
1962 0.50 2.00 6.00 273.50 406.00 634.50 828.50 783.50 555.00 275.00 41.50 0.00 3806.00
1963 0.00 a 18.00 43.50 121.50 495.00 594.50 912.00 824.00 619.00 393.00 24.50 0.00 4045.00
1964 0.00 0.00 11.00 127.50 410.50 579.50 917.00 752.00 509.00 272.00 0.00 z 0.00 z 3578.50
1965 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
1966 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 459.00 i 911.00 812.00 569.00 180.00 23.50 0.00 2495.50
1967 0.00 0.00 17.50 33.00 303.80 a 449.50 883.00 857.00 566.50 259.50 52.50 0.00 3422.30
1968 0.00 0.00 26.98 d 62.50 315.50 622.00 841.00 619.00 417.50 196.50 2.00 0.00 3102.98
1969 0.00 0.00 13.95 a 151.00 502.00 506.00 841.00 912.00 575.00 83.00 3.50 0.00 3587.45
1970 0.00 0.00 2.00 84.50 396.00 588.10 a 827.18 a 868.50 410.17 a 118.00 18.00 0.00 3312.46
1971 3.00 3.50 52.91 b 0.00 z 297.60 a 641.50 870.00 876.00 382.50 163.50 0.00 0.00 3290.51
1972 0.00 8.00 99.72 a 177.32 b 379.75 a 651.72 a 835.00 781.50 479.00 231.00 0.00 0.00 c 3643.01
1973 0.00 0.00 0.00 65.19 d 368.00 566.50 796.00 810.81 b 426.92 d 223.50 26.25 b 0.00 a 3283.18
1974 0.00 0.00 47.50 92.07 a 441.00 686.00 858.00 750.41 b 499.50 259.00 1.00 0.00 3634.48
1975 0.50 0.00 16.50 41.50 260.50 476.38 a 871.00 704.50 509.50 200.50 10.50 l 0.00 k 3080.88
1976 0.00 3.50 17.50 117.50 406.00 537.50 885.50 725.00 526.00 155.50 26.50 0.00 3400.50
1977 0.00 j 0.00 2.00 255.00 266.50 767.00 831.00 774.50 539.00 227.00 28.50 16.53 a 3707.03
1978 0.00 0.00 53.00 127.00 296.00 600.50 848.50 769.50 510.00 248.50 44.00 0.00 3497.00
1979 0.00 0.00 0.00 137.88 d 325.50 g 597.50 861.00 784.00 638.00 291.50 0.00 0.00 3309.88
1980 0.00 0.00 0.00 110.00 f 308.00 619.00 875.00 747.62 a 507.00 197.50 66.00 1.50 3321.62
1981 0.00 5.00 8.00 236.25 b 323.00 695.50 869.50 830.00 608.00 106.00 22.50 0.00 3703.75
1982 0.00 0.00 5.50 107.50 315.50 549.00 840.00 871.50 529.00 85.00 0.00 0.00 3303.00
1983 0.00 0.00 30.00 61.00 270.00 553.50 802.50 913.50 581.00 247.00 53.50 0.00 3512.00
1984 0.00 0.00 0.00 80.50 424.00 549.00 870.50 819.50 499.50 144.00 5.00 0.00 3392.00
1985 0.00 0.00 12.00 257.00 459.50 688.50 921.50 793.00 412.50 183.50 13.50 0.00 3741.00
1986 0.00 28.00 124.00 109.00 336.00 765.00 791.50 852.00 418.50 142.00 4.50 0.00 3570.50
1987 0.00 0.00 5.50 245.50 406.50 670.00 768.50 729.50 532.00 263.00 38.50 0.00 3659.00
1988 0.00 0.00 12.00 140.00 377.50 750.50 934.00 831.00 447.00 376.50 31.50 0.00 3900.00
1989 0.00 0.00 57.00 250.50 416.00 596.00 945.00 734.00 515.00 228.50 22.50 0.00 3764.50
1990 0.50 0.00 51.50 247.50 341.00 702.00 848.00 792.00 651.50 199.00 6.00 0.00 3839.00
1991 0.00 0.00 2.50 99.00 334.50 582.50 873.00 829.00 506.00 314.00 4.00 0.00 3544.50
1992 0.00 0.00 54.50 305.00 521.00 602.50 742.00 818.00 529.00 275.00 0.00 0.00 3847.00
1993 0.00 0.00 53.00 103.50 408.50 519.50 682.50 690.50 456.50 166.50 0.00 0.00 3080.50
1994 0.00 0.00 47.50 191.00 466.50 748.50 890.00 914.50 0.00 z 160.00 2.50 0.00 3420.50
1995 0.00 8.50 50.00 74.50 212.00 461.50 766.00 843.00 553.00 170.00 22.50 0.00 3161.00
1996 0.00 0.00 33.00 112.00 403.00 674.50 903.00 840.50 453.00 251.00 7.50 0.00 3677.50
1997 0.00 0.00 41.50 97.00 391.00 624.50 755.50 791.00 518.00 185.50 5.00 0.00 3409.00
1998 0.00 0.00 61.00 85.50 320.00 448.00 909.50 826.50 604.00 176.50 9.00 0.00 3440.00
1999 0.00 0.00 64.50 81.00 293.50 554.00 848.00 784.00 495.00 0.00 z 0.00 z 0.00 z 3120.00
2000 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
2001 0.00 z 0.00 z 0.00 z 182.00 452.60 a 668.00 894.00 860.50 656.50 261.50 42.50 0.00 4017.60
2002 0.00 0.00 23.50 225.50 399.00 765.00 1024.00 850.50 552.00 151.00 0.00 0.00 3990.50
2003 0.00 0.00 38.00 158.00 436.50 620.00 1041.50 924.00 511.00 384.00 0.00 0.00 4113.00
2004 0.00 0.00 155.00 191.00 401.50 629.50 843.50 747.50 469.50 206.50 3.00 0.00 3647.00
2005 0.00 0.00 32.00 113.50 366.50 523.50 950.50 790.50 487.50 219.50 30.00 0.00 3513.50
2006 0.00 3.00 8.00 180.00 490.00 754.00 986.50 770.00 427.50 139.50 16.50 0.00 3775.00
2007 0.00 0.00 109.50 170.00 446.50 743.50 1024.00 904.00 537.93 a 168.00 40.00 0.00 a 4143.43
2008 0.00 0.00 7.00 87.86 b 303.00 590.00 947.00 865.50 504.50 237.00 33.00 0.00 a 3574.86
2009 0.00 1.50 56.50 127.50 450.00 510.50 873.00 787.00 615.50 108.50 33.50 0.00 a 3563.50
2010 0.00 0.00 14.50 137.50 223.00 658.00 880.00 765.00 579.00 145.50 g 29.00 0.00 3286.00
2011 0.00 0.00 0.00 82.50 208.73 a 543.62 a 805.50 862.32 a 605.00 225.50 1.55 a 0.00 e 3334.72
2012 2.50 0.00 101.78 a 227.40 e 491.23 e 783.50 950.31 b 930.00 662.40 e 250.00 54.50 2.00 4455.62
2013 0.00 0.00 53.98 b 14.00 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 53.98
Period of Record Statistics
MEAN 0.13 2.24 35.41 147.89 382.33 626.20 871.80 809.95 526.83 217.69 19.78 0.96 3643.01
S.D. 0.53 5.97 34.38 67.29 81.02 90.33 67.33 63.35 72.45 68.01 18.55 4.28 288.38
SKEW 4.69 3.08 1.34 0.47 -0.21 -0.01 0.06 -0.24 -0.16 0.35 0.68 5.13 0.34
MAX 3.00 28.00 155.00 305.00 542.00 783.50 1041.50 930.00 662.40 393.00 66.00 27.00 4455.62
MIN 0.00 0.00 0.00 33.00 208.73 448.00 682.50 619.00 361.00 83.00 0.00 0.00 3080.50
NO YRS 55 56 56 54 55 55 58 58 57 56 55 55 45