COTTONWOOD WEIR, UTAH

Monthly Total Heating Degree Days

(421759)

Base Temperature = 65 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 50.50 303.50 847.00 1088.00 2289.00
1949 1485.50 984.50 670.00 289.00 193.50 70.50 0.00 0.00 26.00 454.00 529.00 995.50 5697.50
1950 1064.50 747.00 723.50 399.50 299.50 53.50 1.50 0.00 103.00 140.50 627.50 934.00 5094.00
1951 1032.50 757.00 805.50 354.83 a 212.00 89.00 0.00 0.00 32.00 403.00 787.00 1089.00 5561.83
1952 1067.00 964.50 918.00 363.50 145.00 30.50 0.00 0.00 14.50 110.50 842.00 951.50 5407.00
1953 729.53 a 764.50 608.50 507.50 359.50 49.50 0.00 0.00 0.00 262.50 522.50 1028.00 4832.03
1954 865.50 761.70 a 752.50 275.50 145.50 96.50 0.00 2.00 41.50 277.50 532.50 1010.00 4760.70
1955 1209.50 1028.00 820.00 518.50 205.00 80.50 1.00 0.00 96.00 263.00 818.00 826.50 5866.00
1956 828.50 1037.50 620.00 403.00 165.00 13.00 0.00 0.00 19.00 268.84 b 834.00 1009.00 5197.84
1957 1096.00 610.50 620.50 456.00 208.50 47.00 0.00 a 0.00 43.27 d 324.97 b 454.00 m 85.00 z 3406.73
1958 1033.00 620.50 794.50 515.50 83.00 0.00 a 0.00 c 0.00 75.52 a 198.52 e 716.00 855.50 4892.04
1959 916.64 b 799.00 694.00 360.54 b 284.50 16.07 b 0.00 a 0.00 a 184.14 a 325.50 b 679.50 1019.50 5279.38
1960 1127.50 1000.50 626.41 b 346.03 a 195.50 6.50 0.00 b 9.50 3.50 296.50 654.31 a 1025.50 5291.76
1961 993.00 733.00 688.50 441.50 182.79 b 15.52 a 0.00 0.00 163.50 368.50 799.00 999.00 5384.31
1962 1230.00 812.00 757.43 a 296.50 211.00 75.50 0.00 7.00 43.50 234.50 559.50 992.50 5219.43
1963 1216.50 633.50 702.50 581.50 69.50 85.00 0.00 6.00 7.00 155.00 690.00 1153.00 5299.50
1964 1179.50 0.00 z 0.00 z 526.50 0.00 z 111.50 0.00 21.50 51.50 0.00 z 767.00 905.00 3562.50
1965 940.00 787.50 0.00 z 0.00 z 0.00 z 45.00 0.00 5.50 0.00 z 175.00 482.00 986.50 3421.50
1966 990.50 881.00 615.50 380.50 105.00 27.50 0.00 z 0.00 37.00 346.00 556.00 1092.50 5031.50
1967 1000.50 753.00 598.00 556.50 302.00 108.50 0.00 0.00 0.00 z 318.00 0.00 z 0.00 z 3636.50
1968 1108.50 743.12 a 615.00 590.69 a 271.77 a 61.00 0.53 b 34.50 131.00 351.33 a 747.41 a 1060.00 5714.86
1969 876.02 b 840.50 821.50 394.50 60.50 76.50 1.00 0.00 10.50 568.50 731.00 988.00 5368.52
1970 935.00 659.00 770.00 631.50 236.00 78.50 0.00 0.00 177.00 523.00 661.50 1076.73 a 5748.23
1971 952.00 848.00 754.50 456.00 238.91 b 65.00 0.00 0.52 a 163.00 509.50 832.00 1121.50 5940.93
1972 1067.95 a 776.79 a 529.87 d 468.50 133.30 a 0.00 0.00 1.00 155.00 406.10 a 830.00 0.00 z 4368.51
1973 1280.09 b 859.50 794.00 555.54 b 161.50 84.50 0.00 0.00 127.24 a 300.00 708.50 954.00 5824.86
1974 1148.15 d 883.50 587.45 a 454.82 b 133.41 c 49.82 b 0.00 b 4.00 66.00 e 288.41 c 627.93 a 1063.41 c 5306.90
1975 900.00 f 840.58 d 752.30 c 692.22 c 321.33 e 75.00 d 0.00 d 4.00 22.50 d 359.27 c 577.50 i 939.62 b 4006.82
1976 1101.69 e 860.87 b 894.57 c 477.78 c 141.00 81.11 c 0.00 e 3.62 a 26.67 c 370.85 d 634.66 a 1047.11 d 5639.92
1977 1136.84 b 795.00 796.38 b 318.00 319.50 0.00 0.00 14.50 59.50 241.28 a 639.50 829.00 5149.51
1978 946.50 734.00 530.50 483.00 290.00 32.50 0.00 15.50 149.50 225.50 817.50 1169.45 b 5393.95
1979 1281.50 852.00 697.50 425.50 200.50 57.50 0.00 b 8.50 12.69 d 246.00 854.50 921.50 5557.69
1980 1003.50 791.00 316.00 q 337.76 a 196.50 k 66.72 a 0.00 1.50 u 26.50 368.50 686.00 977.00 4256.98
1981 1097.00 745.50 670.12 a 333.50 245.50 41.00 0.00 1.00 36.00 443.50 585.50 847.00 5045.62
1982 1055.50 888.00 715.50 534.50 242.50 64.00 10.00 0.00 176.50 505.00 795.50 1066.00 6053.00
1983 933.50 751.50 681.00 616.50 367.87 a 72.00 6.00 0.00 56.50 289.50 719.00 1077.00 5570.37
1984 1349.00 1149.50 840.50 562.00 187.50 111.00 0.00 0.00 115.00 543.50 717.50 1101.50 6677.00
1985 1277.50 1049.50 786.50 293.00 134.50 39.50 0.00 1.00 148.00 359.50 841.50 1278.50 6209.00
1986 1023.50 685.50 486.50 0.00 z 252.50 12.50 0.00 0.00 215.50 357.00 681.00 1059.00 4773.00
1987 1143.00 792.50 711.50 249.00 146.00 10.50 0.00 5.00 29.50 228.50 744.00 1076.00 5135.50
1988 1179.00 840.00 744.50 345.50 224.50 8.00 0.00 0.00 137.50 107.00 717.50 1130.50 5434.00
1989 1245.00 1051.00 560.50 304.00 179.00 47.50 0.00 5.00 39.00 301.00 694.00 1050.50 5476.50
1990 968.00 893.00 599.00 302.50 223.50 50.00 0.00 0.00 25.00 303.50 677.50 1295.50 5337.50
1991 1213.50 691.00 690.50 535.50 292.50 31.50 0.00 0.00 82.50 326.50 812.00 1139.50 5815.00
1992 1159.50 746.50 482.50 200.50 56.00 34.00 12.50 17.00 29.50 203.50 893.00 1050.00 4884.50
1993 1147.00 943.00 633.00 460.00 144.50 90.50 17.00 0.00 54.50 365.50 835.00 1004.00 5694.00
1994 847.50 798.50 533.50 387.50 88.00 14.50 0.00 0.00 12.50 357.50 882.50 913.50 4835.50
1995 904.50 538.00 601.00 462.00 295.50 96.50 1.00 0.00 53.00 320.00 480.00 823.00 4574.50
1996 936.00 824.00 574.50 401.00 187.50 5.00 0.00 0.00 115.50 378.00 610.00 827.00 4858.50
1997 993.50 839.00 527.50 475.00 91.50 21.50 0.00 0.00 69.00 334.00 650.50 1123.00 5124.50
1998 824.50 783.00 676.50 475.50 206.00 108.50 0.00 0.00 57.50 428.00 639.00 1053.00 5251.50
1999 897.00 741.00 552.50 542.50 249.50 54.00 0.00 0.00 65.00 206.00 481.50 1030.00 4819.00
2000 884.00 689.50 659.00 223.00 137.50 3.50 0.00 2.00 74.48 a 359.08 a 982.50 1042.63 a 5057.20
2001 1171.00 837.93 a 594.50 431.50 104.62 c 74.00 0.00 a 0.00 19.00 261.43 a 0.00 z 1144.00 4637.98
2002 1138.00 964.00 801.50 375.00 200.00 33.50 0.00 0.00 76.50 472.50 860.00 977.00 5898.00
2003 823.50 847.50 633.00 0.00 z 223.50 37.00 0.00 z 0.00 65.50 216.00 868.00 954.00 4668.00
2004 1286.50 1046.00 526.00 395.00 193.50 20.50 0.00 10.50 99.00 383.50 806.50 1034.50 5801.50
2005 976.00 814.00 698.00 480.00 245.00 126.00 0.00 2.00 95.00 329.50 698.50 1036.00 5500.00
2006 969.50 882.50 756.00 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 2608.00
Period of Record Statistics
MEAN 1057.65 824.39 678.07 430.42 199.87 51.86 0.90 3.18 72.60 322.16 716.39 1022.55 5401.76
S.D. 153.33 122.99 104.57 109.63 76.08 33.89 3.14 6.43 55.00 104.18 119.65 102.25 424.53
SKEW 0.28 0.37 0.12 0.07 0.11 0.20 3.91 2.89 0.79 0.21 -0.21 0.08 0.47
MAX 1485.50 1149.50 918.00 692.22 367.87 126.00 17.00 34.50 215.50 568.50 982.50 1295.50 6677.00
MIN 729.53 538.00 482.50 200.50 56.00 0.00 0.00 0.00 0.00 107.00 480.00 823.00 4574.50
NO YRS 57 57 55 54 54 57 56 57 56 57 54 55 46