ZION NP, UTAH

Monthly Total Heating Degree Days

(429717)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1904 1000.27 a 684.00 344.74 b 208.97 a 27.38 a 2.00 0.00 0.00 13.39 b 110.64 b 0.00 z 612.50 3003.89
1905 688.50 384.00 m 335.12 b 145.50 89.50 0.00 0.00 a 0.00 3.00 0.00 z 489.00 842.00 2592.62
1906 808.00 363.48 a 368.00 225.50 39.00 4.66 a 0.00 0.00 13.50 140.50 562.00 169.50 t 2524.64
1907 0.00 z 42.50 t 273.00 0.00 z 0.00 z 31.50 0.00 0.00 20.00 86.50 483.50 664.00 1558.50
1908 718.00 598.00 453.00 275.00 194.50 17.00 0.00 0.00 36.50 290.00 432.50 0.00 z 3014.50
1909 766.00 565.50 542.50 a 254.00 82.00 0.00 0.00 0.00 7.00 72.33 a 469.00 0.00 z 2758.33
1910 697.50 a 605.00 0.00 z 0.00 z 25.83 a 0.00 0.00 0.00 a 0.00 72.00 252.00 401.00 2053.33
1911 802.50 784.00 519.00 348.00 53.00 0.00 l 0.00 0.00 0.00 125.00 541.55 a 965.00 4138.05
1912 731.50 648.00 525.00 386.50 145.00 0.00 0.00 0.00 z 0.00 z 303.00 0.00 z 0.00 z 2739.00
1913 1340.50 0.00 z 0.00 z 0.00 z 0.00 z 0.50 0.00 0.00 49.00 0.00 z 533.50 885.00 2808.50
1914 673.00 614.50 0.00 z 0.00 z 0.00 z 15.50 0.00 0.00 0.00 0.00 0.00 z 459.00 n 1303.00
1915 803.00 411.00 i 482.00 267.50 217.00 c 51.50 42.00 131.75 c 77.00 o 6.50 z 472.00 758.50 3225.25
1916 846.50 486.50 463.45 a 305.00 206.00 13.00 0.00 0.50 78.00 e 342.50 655.34 a 839.50 4236.29
1917 977.02 a 269.00 s 756.50 504.00 341.00 3.50 u 0.00 0.00 z 8.00 161.00 q 0.00 z 0.00 z 2586.52
1918 443.50 p 382.00 i 398.41 d 275.50 216.00 0.00 e 0.00 0.00 4.50 96.00 f 190.50 l 0.00 z 894.41
1919 514.50 g 624.62 b 504.50 178.45 a 40.00 5.17 a 0.00 0.00 20.50 258.00 i 474.50 726.00 2573.74
1920 479.00 g 553.15 b 390.00 f 85.00 t 125.03 a 0.52 a 0.00 a 0.00 b 84.11 b 8.50 r 338.50 h 737.00 1499.81
1921 709.50 453.00 359.00 499.50 252.65 a 8.50 f 2.87 d 0.00 0.00 183.33 b 570.52 a 819.50 3849.87
1922 1041.60 a 653.85 a 555.86 b 362.22 c 77.50 0.00 b 0.00 b 0.00 0.00 c 147.54 d 278.00 o 513.00 f 2838.57
1923 639.63 a 686.54 b 464.50 f 252.00 g 43.06 d 9.11 b 0.00 a 0.00 b 19.00 k 0.00 z 0.00 z 0.00 z 1378.33
1924 318.00 w 255.50 545.50 0.00 z 0.00 z 9.44 c 0.00 r 0.00 c 32.31 d 178.00 g 365.50 i 978.16 c 1820.91
1925 954.00 495.48 e 400.86 b 0.00 z 0.00 z 0.00 z 0.00 c 0.00 a 14.50 185.00 h 544.66 a 684.50 3094.00
1926 853.50 499.33 a 413.85 a 250.86 a 82.27 e 0.00 b 0.00 0.00 a 8.50 105.29 b 451.11 c 813.00 3477.72
1927 691.96 c 551.50 518.50 276.00 84.00 0.50 0.00 1.00 17.50 j 90.50 f 417.86 b 887.50 3428.82
1928 674.25 a 615.00 368.00 313.00 52.00 6.00 0.00 0.00 2.00 111.00 420.00 826.00 3387.25
1929 871.50 757.00 478.50 326.50 49.50 6.50 0.00 0.00 2.50 155.50 578.00 611.00 3836.50
1930 928.50 479.50 499.00 119.50 209.50 0.00 0.00 0.00 a 4.62 d 197.50 514.66 a 877.00 3829.77
1931 760.50 523.00 476.00 139.50 46.50 0.00 0.00 0.00 5.00 123.00 614.50 893.50 3581.50
1932 1020.50 654.00 479.00 228.00 86.50 35.00 0.00 0.00 0.00 194.00 365.50 951.50 4014.00
1933 943.50 865.00 449.00 317.50 222.34 b 0.50 0.00 0.00 0.00 6.00 302.00 597.50 3703.34
1934 648.00 409.00 155.00 82.50 13.00 12.00 0.00 0.00 18.00 76.50 351.50 645.50 2411.00
1935 675.50 491.00 539.00 208.50 121.00 0.00 0.00 0.00 1.00 146.00 486.00 641.00 3309.00
1936 693.50 646.50 424.00 180.50 24.00 4.00 3.00 0.00 15.00 168.00 412.00 761.00 3331.50
1937 1248.00 655.50 486.00 271.00 14.00 0.00 0.00 0.00 0.00 69.50 343.00 638.00 3725.00
1938 691.50 605.50 545.50 223.50 124.00 0.00 0.00 0.00 0.00 100.00 630.00 693.00 3613.00
1939 777.50 859.50 410.50 135.50 28.42 a 0.00 0.00 0.00 0.00 121.50 285.00 547.50 3165.42
1940 687.00 622.00 334.00 197.50 1.00 0.00 0.00 0.00 0.50 98.50 547.50 671.00 3159.00
1941 693.00 472.00 476.00 422.50 56.00 18.00 0.00 0.00 z 4.50 i 253.00 419.50 686.00 3496.00
1942 747.00 711.41 a 503.00 201.00 111.50 0.00 b 86.00 0.00 2.50 139.00 405.00 652.50 3558.91
1943 752.50 499.85 a 438.00 142.50 56.00 8.00 0.00 0.00 4.00 117.28 a 357.50 700.50 3076.14
1944 838.11 c 508.00 h 496.00 300.00 a 48.00 17.50 0.00 33.00 0.00 23.00 496.00 657.72 a 2909.32
1945 644.00 545.00 589.50 305.00 36.00 6.50 0.00 0.00 a 9.50 78.50 453.50 839.50 3507.00
1946 769.50 547.50 367.00 115.50 32.50 0.00 a 0.00 0.00 0.00 255.00 577.50 635.00 3299.50
1947 838.50 391.50 319.50 193.00 23.50 3.00 0.00 0.00 0.00 120.50 630.50 869.50 3389.50
1948 721.50 715.50 678.50 233.50 55.50 0.00 0.00 0.00 0.00 96.62 a 611.00 849.00 3961.12
1949 1159.50 836.00 533.00 159.00 62.00 20.50 0.00 0.00 0.00 206.00 199.50 785.00 3960.50
1950 833.50 473.00 382.00 101.00 83.00 2.50 0.00 0.00 0.00 10.00 284.48 a 469.50 2638.98
1951 765.50 515.50 474.00 180.50 74.50 7.00 0.00 0.00 0.00 148.00 509.00 864.00 3538.00
1952 832.00 632.50 699.00 177.50 26.50 0.00 0.00 d 0.00 a 4.50 0.00 589.00 805.50 3766.50
1953 573.50 529.00 356.00 231.00 147.00 1.50 0.00 0.00 0.00 129.50 330.00 808.50 3106.00
1954 646.50 373.50 530.50 75.00 30.00 7.50 0.00 0.00 0.00 86.00 304.00 700.50 2753.50
1955 911.00 731.00 472.50 240.50 68.50 16.50 0.00 0.00 1.00 58.00 451.00 562.00 3512.00
1956 590.50 705.50 362.00 210.50 34.50 0.00 0.00 0.00 0.00 96.50 484.50 678.00 3162.00
1957 776.50 388.50 402.50 261.50 140.50 0.50 0.00 0.00 0.00 181.50 636.50 649.50 3437.50
1958 718.00 464.00 627.00 306.50 28.50 0.00 0.00 0.00 11.50 96.50 425.00 533.00 3210.00
1959 687.50 647.00 428.00 119.00 43.00 0.00 0.00 0.00 a 22.00 87.00 413.00 658.50 3105.00
1960 889.50 725.00 356.50 190.50 46.00 0.00 0.00 0.00 0.00 136.50 399.00 770.50 3513.50
1961 644.50 547.50 488.50 214.00 58.00 0.50 0.00 0.00 21.00 172.00 576.50 845.50 3568.00
1962 826.50 572.00 610.50 105.50 104.50 14.50 0.00 0.00 0.00 69.00 291.50 644.00 3238.00
1963 909.50 402.00 535.00 335.00 9.50 1.00 0.00 0.00 0.00 70.50 419.00 766.50 3448.00
1964 878.50 764.00 643.50 325.50 157.50 10.50 0.00 0.00 2.50 60.00 553.00 742.50 4137.50
1965 665.50 587.00 576.50 355.50 159.50 10.50 0.00 0.00 77.00 59.00 370.00 690.50 3551.00
1966 815.50 724.00 356.00 169.50 39.00 0.00 0.00 0.00 0.00 114.50 382.50 753.50 3354.50
1967 790.50 569.50 410.50 424.00 125.50 10.00 0.00 0.00 0.00 67.50 330.00 949.00 3676.50
1968 756.00 438.50 399.50 320.00 78.50 22.50 0.00 0.00 25.00 66.50 497.00 842.50 3446.00
1969 670.50 655.50 546.50 190.50 26.00 0.00 0.00 0.00 0.00 245.50 411.00 639.00 3384.50
1970 735.00 406.00 535.50 361.50 32.50 7.00 0.00 0.00 8.00 193.50 398.50 731.00 3408.50
1971 740.50 595.50 428.50 225.00 128.00 4.00 0.00 0.00 17.50 287.00 517.00 869.50 3812.50
1972 788.00 472.50 220.00 172.50 26.00 0.00 0.00 0.00 0.00 212.50 632.50 867.50 3391.50
1973 983.50 588.00 653.50 318.00 45.00 18.00 0.00 0.00 3.00 131.75 a 491.00 665.00 3896.75
1974 854.50 587.00 354.00 252.50 25.00 0.00 0.00 0.00 0.50 107.50 468.00 868.00 a 3517.00
1975 854.50 649.50 597.50 466.03 a 121.42 a 0.00 0.00 0.00 0.00 144.00 345.50 q 681.50 3514.45
1976 697.50 473.00 543.50 257.07 a 11.00 2.50 0.00 0.00 0.00 152.50 362.50 686.00 3185.57
1977 770.00 466.00 576.50 150.00 148.50 0.00 0.00 0.00 2.00 38.50 410.50 586.50 3148.50
1978 705.00 565.50 359.00 273.50 102.50 0.00 0.00 0.00 33.50 65.44 d 525.00 905.00 3534.44
1979 1000.00 707.00 514.00 232.00 80.50 3.50 0.00 0.00 0.00 84.50 579.00 632.50 3833.00
1980 714.50 497.50 579.70 a 238.00 128.13 a 0.50 0.00 a 0.00 0.00 a 185.50 406.00 491.50 3241.33
1981 581.00 460.00 491.50 136.50 64.00 5.00 0.00 0.00 0.00 190.13 a 298.50 598.50 2825.13
1982 866.50 558.00 500.50 272.00 58.50 0.00 0.00 0.00 40.00 224.50 536.00 781.00 3837.00
1983 688.50 548.50 526.50 396.50 150.50 0.00 0.00 0.00 6.50 60.00 483.50 720.50 3581.00
1984 761.50 625.50 456.50 294.00 29.50 2.50 0.00 0.00 6.00 350.50 517.00 739.00 3782.00
1985 788.50 656.50 505.50 139.00 30.50 0.00 0.00 0.00 12.50 108.50 583.00 688.00 3512.00
1986 475.50 503.50 286.50 208.00 62.00 1.00 0.00 0.00 79.50 145.00 460.00 658.00 2879.00
1987 817.50 579.50 507.00 122.50 34.00 0.00 0.00 0.00 0.00 60.50 473.00 841.00 3435.00
1988 764.00 484.50 446.50 227.00 111.50 0.00 0.00 0.00 13.00 0.00 461.00 727.00 3234.50
1989 820.00 603.50 254.50 78.00 48.00 0.00 0.00 0.00 2.50 113.50 365.50 697.50 2983.00
1990 713.00 616.00 342.50 127.00 47.00 0.00 0.00 0.00 0.00 63.50 411.00 936.00 3256.00
1991 785.50 350.50 594.00 280.50 103.50 13.00 0.00 0.00 0.00 142.50 467.50 701.00 3438.00
1992 746.00 444.50 387.50 73.97 a 8.00 3.00 0.00 0.00 0.00 60.50 632.50 883.50 3239.47
1993 776.50 624.00 363.00 210.00 53.00 25.50 0.00 0.00 4.50 163.50 601.50 756.00 3577.50
1994 695.50 672.00 348.00 284.00 45.00 0.00 0.00 0.00 0.00 152.50 654.00 669.00 3520.00
1995 721.50 311.50 436.00 305.00 101.50 34.00 0.00 0.00 3.50 82.50 300.50 656.00 2952.00
1996 721.00 458.00 416.50 179.00 40.00 0.00 0.00 0.00 23.00 237.00 455.50 778.50 3308.50
1997 784.50 595.00 245.00 263.50 22.00 11.00 0.00 0.00 0.00 148.00 385.00 840.00 3294.00
1998 642.50 644.50 428.32 a 351.50 67.50 5.50 0.00 0.00 1.00 146.00 474.00 706.00 3466.82
1999 632.50 485.50 278.00 374.50 94.00 27.00 0.00 0.00 4.14 a 48.50 226.50 691.00 2861.64
2000 585.50 499.50 399.00 71.00 23.25 a 0.00 0.00 0.00 3.00 193.00 619.50 645.00 3038.75
2001 736.77 a 596.00 341.53 b 246.21 a 41.00 4.50 0.00 0.00 0.00 56.00 359.50 842.54 c 3224.04
2002 788.50 537.00 477.50 79.00 47.00 0.00 0.00 0.00 4.50 144.50 463.00 735.00 3276.00
2003 473.50 619.50 448.00 285.00 78.00 0.00 0.00 0.00 0.00 18.50 513.00 661.50 3097.00
2004 728.00 705.00 199.50 165.00 7.50 0.00 0.00 0.00 12.00 179.50 478.00 681.00 3155.50
2005 604.50 520.50 467.00 229.00 68.00 0.00 0.00 0.00 0.00 80.00 390.50 689.50 3049.00
2006 662.00 523.50 527.50 167.00 10.50 0.00 0.00 0.00 16.50 157.00 393.00 750.50 3207.50
2007 830.50 489.50 268.50 150.50 26.50 6.50 0.00 0.00 16.00 87.00 264.50 772.50 2912.00
2008 0.00 z 599.50 384.00 186.00 65.50 6.00 0.00 0.00 0.00 111.50 362.00 800.00 2514.50
2009 649.50 503.50 371.00 222.50 0.00 0.00 0.00 0.00 0.00 0.00 z 312.50 865.50 2924.50
2010 682.00 553.00 439.00 260.50 116.00 2.50 0.00 0.00 0.00 77.50 i 554.50 614.50 3222.00
2011 767.50 667.00 403.00 273.89 c 136.00 6.72 a 0.00 a 0.00 a 0.00 b 127.32 c 476.38 a 770.50 3628.31
2012 648.93 a 565.50 336.00 155.50 9.82 a 0.00 0.00 c 0.00 b 0.00 68.00 300.00 a 718.00 2801.75
2013 801.50 651.50 277.93 b 5.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 36.00 z 1730.93
Period of Record Statistics
MEAN 772.02 570.16 447.37 236.34 76.36 5.64 1.24 1.57 8.99 126.15 455.22 736.11 3387.92
S.D. 136.90 114.90 110.57 94.42 61.73 9.17 9.18 13.16 17.24 73.36 107.07 113.02 343.83
SKEW 1.28 0.05 0.01 0.49 1.52 2.38 8.22 9.39 2.92 0.80 -0.11 -0.12 -0.09
MAX 1340.50 865.00 756.50 504.00 341.00 51.50 86.00 131.75 84.11 350.50 655.34 978.16 4236.29
MIN 473.50 255.50 155.00 71.00 0.00 0.00 0.00 0.00 0.00 0.00 199.50 401.00 2411.00
NO YRS 104 103 105 101 104 105 108 106 104 96 99 100 81