UTAH LAKE LEHI, UTAH

Monthly Total Heating Degree Days

(428973)

Base Temperature = 65 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 1264.50 960.50 697.00 605.50 165.50 132.50 8.00 21.50 131.50 459.50 827.50 1213.50 6487.00
1929 1297.00 1149.50 854.50 629.50 329.50 123.00 9.50 0.00 203.50 468.50 934.50 1028.00 7027.00
1930 1350.00 822.50 767.00 351.50 360.00 66.50 0.00 0.00 173.50 574.00 1058.50 1503.00 7026.50
1931 1403.50 887.50 839.00 480.00 285.00 5.00 2.00 5.00 169.00 381.00 972.00 1326.00 6755.00
1932 1455.00 991.00 831.50 519.00 248.50 125.00 8.00 34.00 155.00 572.50 797.50 1462.50 7199.50
1933 1314.50 1372.00 869.50 651.00 461.50 25.00 0.00 39.00 126.00 413.00 841.00 986.00 7098.50
1934 1052.00 716.50 604.50 366.00 97.50 69.50 1.00 0.00 212.00 428.50 760.86 a 1146.50 5454.86
1935 1004.00 841.00 885.64 b 532.00 391.50 61.00 0.00 4.50 102.50 557.00 936.50 1161.50 6477.14
1936 1231.00 945.00 835.50 445.50 205.50 78.00 7.50 5.00 221.00 503.50 914.50 1069.50 6461.50
1937 1695.50 1021.50 783.50 633.00 189.50 123.00 0.00 0.00 101.00 455.00 752.00 979.00 6733.00
1938 1021.50 819.00 795.50 488.50 353.00 43.50 27.50 16.50 58.00 433.00 1050.00 1027.00 6133.00
1939 1175.00 1246.00 808.50 429.50 183.50 124.00 0.00 6.50 132.50 521.00 772.50 975.50 6374.50
1940 1134.00 849.50 720.50 481.50 158.50 61.00 0.00 0.00 104.50 424.00 936.50 1079.50 5949.50
1941 1069.00 773.50 796.50 609.83 a 231.00 132.00 3.50 5.50 284.00 580.00 820.00 973.00 6277.83
1942 1291.50 1098.00 957.00 494.50 429.00 90.50 0.00 8.50 169.66 a 460.50 792.50 1029.50 6821.16
1943 1075.00 873.00 766.50 305.69 a 303.00 139.00 3.50 14.00 87.00 403.50 782.50 1049.50 5802.19
1944 1426.00 1044.50 921.00 586.15 d 265.05 a 140.50 0.00 0.00 j 158.57 b 322.00 g 682.00 f 1113.00 5654.77
1945 1106.70 a 839.00 848.00 653.00 260.00 209.50 5.50 2.50 229.00 427.80 a 819.50 1150.50 6551.00
1946 1270.50 959.50 735.00 389.50 313.00 43.50 0.00 a 0.00 178.00 624.00 843.50 932.00 6288.50
1947 1331.00 844.50 718.00 552.50 183.00 113.79 a 1.50 3.50 131.50 369.50 931.50 1087.00 6267.29
1948 1136.00 984.50 969.00 498.00 273.50 66.00 7.50 6.50 144.50 501.00 959.50 1266.50 6812.50
1949 1672.00 1232.50 779.00 421.00 245.50 102.00 0.00 4.00 106.50 585.50 728.50 1194.50 7071.00
1950 1322.00 905.50 834.00 526.50 411.00 116.00 9.00 6.00 183.00 344.50 756.50 947.50 6361.50
1951 1173.50 861.50 881.00 491.00 282.00 141.50 4.00 5.50 146.50 515.50 921.00 1281.85 a 6704.85
1952 1281.00 1126.50 1007.00 462.50 224.50 54.50 3.50 4.50 91.50 394.00 949.50 1098.00 6697.00
1953 884.50 893.00 730.50 587.50 449.00 78.00 0.00 5.50 81.00 446.00 705.00 1220.00 6080.00
1954 1028.50 852.50 859.00 425.50 210.50 135.50 3.00 20.50 126.50 457.50 720.50 1115.50 5955.00
1955 1435.00 1255.50 967.00 603.50 286.50 103.00 2.00 0.00 151.00 447.00 942.00 936.50 7129.00
1956 917.00 1176.50 786.00 496.00 204.50 35.00 0.00 21.50 115.00 466.50 1028.50 1169.00 6415.50
1957 1216.50 797.50 730.50 548.50 310.00 71.00 0.00 1.00 160.00 470.50 963.00 1030.00 6298.50
1958 1147.00 733.00 843.00 448.00 i 166.50 19.50 1.00 0.00 148.00 440.00 889.50 981.50 5369.00
1959 1041.50 861.00 786.50 482.00 339.50 46.50 7.00 6.50 209.50 495.00 865.50 1157.50 6298.00
1960 1246.50 1100.50 727.00 482.50 278.00 30.00 0.00 48.00 83.00 496.50 764.50 1157.50 6414.00
1961 1186.50 843.00 799.00 546.21 a 258.00 31.00 0.00 2.00 266.00 529.00 955.00 1203.00 6618.71
1962 1353.50 922.00 907.50 435.00 297.00 116.50 6.50 29.00 106.00 413.00 712.00 1145.00 6443.00
1963 1374.50 764.50 825.00 646.50 169.00 106.50 0.50 0.00 37.00 279.50 776.50 1247.50 6227.00
1964 1370.00 1248.00 1086.50 587.50 282.62 a 134.00 0.50 41.50 193.00 420.50 872.00 1030.00 7266.12
1965 1043.00 933.50 907.00 471.00 355.00 79.50 0.00 a 22.00 271.00 433.50 612.93 a 1009.50 6137.93
1966 1135.50 1043.50 781.00 508.00 169.50 45.50 0.00 10.50 76.50 526.00 717.50 1130.00 6143.50
1967 1198.50 910.00 678.50 581.00 369.00 117.50 0.00 0.00 101.00 463.00 709.00 1300.50 6428.00
1968 1315.50 836.00 692.50 634.00 329.00 76.50 7.00 64.50 225.50 479.50 825.50 1206.00 6691.50
1969 1020.00 910.00 897.50 502.00 103.00 96.50 2.00 0.00 55.50 621.00 853.00 1015.00 6075.50
1970 1086.50 765.00 843.00 693.50 286.00 88.50 3.50 0.00 246.50 636.50 758.00 1148.50 6555.50
1971 1117.00 927.00 832.50 529.00 308.00 91.00 0.00 0.00 249.31 a 604.50 892.00 1258.00 6808.31
1972 1167.00 880.00 641.50 526.00 257.00 10.00 0.00 6.00 182.50 436.00 877.00 1350.00 6333.00
1973 1489.00 965.00 836.00 627.50 239.50 128.00 1.00 3.00 116.50 h 483.00 861.72 a 1042.63 a 6676.36
1974 1285.50 1025.50 701.50 567.00 224.75 a 63.50 1.50 17.50 154.82 b 450.61 c 800.00 1183.00 6475.18
1975 1394.00 960.00 843.00 701.50 415.50 134.00 0.00 16.50 136.50 481.03 b 890.50 1109.00 7081.53
1976 1313.00 946.96 c 909.00 530.50 187.00 98.50 0.00 4.50 i 114.83 a 558.00 843.00 1188.00 6688.79
1977 1321.00 1002.50 932.07 a 470.50 340.50 3.50 0.53 b 11.00 81.50 l 405.77 c 759.50 940.00 6186.87
1978 995.50 820.00 675.00 512.00 322.50 82.50 4.50 44.00 226.00 431.00 908.50 1336.00 6357.50
1979 1475.00 1070.50 848.00 569.50 319.50 90.00 0.00 3.50 70.00 402.00 1020.50 1100.00 6968.50
1980 1099.00 1017.50 872.00 520.50 356.50 97.50 0.00 18.00 136.50 513.50 870.50 1015.50 6517.00
1981 1073.50 863.50 788.50 435.00 311.50 62.50 0.00 0.00 38.50 509.50 710.50 996.00 5789.00
1982 1319.00 1042.50 798.00 630.00 339.50 94.50 18.00 0.00 163.00 603.50 877.00 1132.00 7017.00
1983 1002.50 780.00 714.00 669.00 418.50 88.50 23.00 0.00 67.50 402.00 811.50 670.00 k 4976.50
1984 1443.00 1230.00 927.50 555.00 232.50 128.50 0.00 0.00 125.50 636.00 780.50 1188.00 7246.50
1985 1354.00 1252.50 873.50 413.50 187.00 56.50 0.00 2.50 187.50 509.50 903.00 1249.50 6989.00
1986 1135.00 772.50 618.50 534.00 318.50 22.00 6.50 0.00 218.00 549.00 803.50 1105.50 6083.00
1987 1245.00 842.50 809.50 429.50 170.50 18.50 8.50 7.50 144.50 395.00 830.50 1204.00 6105.50
1988 1402.50 1069.00 871.00 425.50 336.50 6.00 0.00 0.00 156.50 284.50 787.50 1265.50 6604.50
1989 1354.00 1204.50 728.50 426.00 218.00 87.50 0.00 9.00 144.00 486.50 873.00 1067.00 6598.00
1990 1047.00 1127.50 743.50 448.50 292.50 55.00 0.00 0.00 51.00 550.50 793.00 1456.00 6564.50
1991 1382.00 898.00 812.50 622.50 379.50 70.00 0.50 0.00 151.50 458.50 883.00 1168.50 6826.50
1992 1238.50 875.50 765.00 338.00 161.00 67.00 21.00 46.00 143.00 438.50 974.00 1363.00 6430.50
1993 1186.50 1030.00 993.00 543.00 181.00 0.00 z 0.00 z 0.00 z 0.00 z 532.00 972.00 1080.50 6518.00
1994 0.00 z 1025.50 820.50 496.50 158.50 9.00 1.50 0.00 40.50 459.50 1078.00 991.50 5081.00
1995 998.00 754.50 772.50 532.78 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 3057.78
1996 1157.00 1056.50 691.50 520.00 281.50 7.00 0.00 0.00 220.50 509.50 810.00 1004.00 6257.50
1997 1163.50 957.50 725.00 556.00 158.00 8.50 0.00 0.00 152.00 523.50 771.50 1189.00 6204.50
1998 0.00 z 847.50 712.00 569.50 406.00 108.00 0.00 0.00 81.00 468.00 784.00 1141.00 5117.00
1999 984.50 808.50 735.00 607.00 413.00 59.50 0.00 0.50 185.50 439.50 704.00 1069.00 6006.00
2000 1014.50 759.00 798.00 362.00 289.50 39.50 0.00 0.00 132.00 460.50 1058.00 1081.00 5994.00
2001 1253.00 898.50 785.50 523.50 154.50 54.00 0.00 0.00 39.00 412.50 808.00 0.00 z 4928.50
2002 0.00 z 1008.00 1001.50 443.50 274.00 68.00 0.00 0.00 147.50 540.00 879.00 0.00 z 4361.50
2003 0.00 z 0.00 z 0.00 z 540.50 341.50 51.00 0.00 z 0.00 z 202.00 0.00 z 929.50 0.00 z 2064.50
Period of Record Statistics
MEAN 1221.68 956.37 812.35 520.10 276.08 77.78 3.03 9.15 146.01 477.40 852.33 1134.59 6496.28
S.D. 167.96 149.39 94.92 86.69 86.08 42.87 5.52 14.09 59.85 74.93 98.83 129.32 398.46
SKEW 0.36 0.68 0.32 -0.14 0.08 0.19 2.66 2.00 0.16 0.03 0.24 0.70 0.01
MAX 1695.50 1372.00 1086.50 701.50 461.50 209.50 27.50 64.50 284.00 636.50 1078.00 1503.00 7266.12
MIN 884.50 716.50 604.50 305.69 97.50 3.50 0.00 0.00 37.00 279.50 612.93 932.00 5454.86
NO YRS 72 75 75 75 75 74 73 71 72 73 74 71 63