MOUNTAIN DELL DAM, UTAH

Monthly Total Heating Degree Days

(425892)

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 12.50 14.50 179.50 497.00 1004.50 1256.50 2964.50
1949 1622.50 1177.50 856.00 454.50 353.00 169.00 5.50 13.50 156.50 668.50 653.50 1174.00 7304.00
1950 1254.50 938.50 922.00 612.50 447.50 155.50 23.50 26.00 272.00 348.50 710.50 995.50 6706.50
1951 1231.00 930.50 992.50 584.50 368.00 253.00 18.50 35.00 197.50 580.50 932.50 1277.00 7400.50
1952 1258.00 1200.50 1110.00 559.00 361.00 173.50 38.50 14.00 113.00 348.00 1002.50 1136.50 7314.50
1953 974.50 972.00 859.50 715.00 538.50 197.50 6.50 14.50 122.00 478.50 704.00 1228.00 6810.50
1954 1047.00 929.50 952.00 486.00 307.50 229.00 16.50 40.50 162.00 488.00 709.50 1179.50 6547.00
1955 1390.50 1215.00 1039.50 681.00 380.00 184.00 43.00 0.00 205.50 448.50 937.00 1026.10 a 7550.10
1956 978.00 1212.50 850.50 576.50 276.00 105.00 13.50 48.50 140.00 456.50 967.00 1148.00 6772.00
1957 1289.00 794.50 820.50 629.00 402.00 153.00 5.50 16.50 189.50 501.00 1005.00 1038.50 6844.00
1958 1182.50 811.50 985.50 674.00 215.00 67.50 9.50 7.00 177.00 404.50 830.50 958.00 6322.50
1959 1097.00 951.00 876.00 520.50 410.00 92.00 23.50 15.00 265.50 518.00 828.50 1089.81 b 6686.81
1960 1233.00 1188.00 825.00 547.00 362.00 77.50 0.00 64.50 76.50 476.50 793.00 1128.00 6771.00
1961 1146.50 905.00 876.00 630.00 312.00 59.50 1.00 2.00 314.00 538.50 924.00 1191.00 6899.50
1962 1344.00 927.50 1005.50 504.50 328.00 167.00 17.50 67.50 166.00 436.00 788.50 1125.50 6877.50
1963 1371.50 840.50 920.00 721.00 242.00 204.00 4.00 7.00 85.50 368.50 848.50 1242.00 6854.50
1964 1367.50 1249.00 1160.00 680.00 0.00 z 0.00 z 0.50 88.50 234.50 453.00 951.00 1155.50 7339.50
1965 1116.00 1055.00 1010.50 580.00 490.00 181.00 21.70 a 81.00 364.50 0.00 z 704.00 1087.50 6691.20
1966 1240.00 1107.50 828.00 627.50 281.50 159.50 3.00 31.00 149.00 633.50 822.00 1279.50 7162.00
1967 1191.50 1029.00 836.00 736.50 460.00 215.17 a 0.00 3.50 155.50 495.00 762.50 1283.00 7167.67
1968 1203.50 872.00 798.50 724.00 439.00 145.50 7.50 102.50 285.50 528.55 a 909.50 1192.00 7208.05
1969 1047.50 989.00 1019.50 575.50 204.50 222.00 27.50 4.50 102.50 699.05 a 930.00 1110.12 b 6931.67
1970 1104.00 845.00 927.23 c 787.50 415.73 c 165.00 13.50 0.00 333.50 695.50 801.00 1199.00 7286.96
1971 1117.00 998.00 941.50 610.50 392.50 147.50 3.00 h 4.50 324.50 651.50 958.00 1308.50 7454.00
1972 1221.00 980.50 722.00 648.00 337.50 78.00 14.00 41.33 a 247.24 a 503.50 953.00 1336.00 7082.07
1973 1366.50 1012.00 936.50 715.00 0.00 z 160.50 9.00 10.00 233.50 468.50 872.50 1113.00 6897.00
1974 1253.50 1059.85 a 758.00 659.50 319.00 101.00 8.50 31.50 170.50 482.05 a 832.00 1211.00 6886.40
1975 1267.50 990.50 937.50 807.50 502.00 223.50 0.00 41.50 195.50 449.50 f 941.79 b 1124.50 7031.79
1976 1264.50 1001.00 1085.50 627.00 265.00 183.50 1.50 28.50 146.00 608.50 842.50 1231.00 7284.50
1977 1296.50 999.50 1038.50 530.50 469.00 25.00 2.50 38.00 173.00 464.00 803.00 998.50 6838.00
1978 1080.00 933.00 751.00 612.50 426.00 123.00 12.00 61.00 246.50 403.00 948.00 1294.50 6890.50
1979 1429.50 1016.00 895.00 624.00 0.00 z 131.50 0.00 18.00 81.00 438.00 841.50 f 1060.00 5693.00
1980 1127.50 938.50 953.00 567.50 433.50 139.00 0.50 39.00 165.50 540.50 850.50 1024.00 6779.00
1981 1152.50 921.50 846.00 487.50 396.00 116.50 3.00 4.00 89.00 597.00 753.00 1008.50 6374.50
1982 1254.50 1055.00 907.50 711.50 431.50 141.00 43.00 1.00 202.00 662.00 938.50 1197.50 7545.00
1983 1040.00 926.50 832.50 763.50 480.00 175.00 32.50 3.00 132.50 463.50 863.50 1211.00 6923.50
1984 1420.00 1215.00 986.50 710.50 335.00 200.00 3.00 0.50 180.00 702.50 859.50 1212.00 7824.50
1985 1341.00 1174.50 932.00 488.50 269.00 81.50 2.50 21.50 294.00 527.50 987.50 1368.50 7488.00
1986 1117.00 831.50 664.00 612.50 381.50 36.00 10.00 0.00 301.50 559.50 854.00 1135.50 6503.00
1987 1283.50 916.00 886.00 431.50 288.00 51.00 19.50 35.50 153.00 430.50 859.50 1157.00 6511.00
1988 1275.00 1037.00 908.50 519.50 346.00 40.00 0.00 4.50 214.00 319.50 842.00 1230.50 6736.50
1989 1370.50 1133.50 716.50 439.00 320.50 143.50 0.00 19.50 111.50 509.50 832.50 1188.00 6784.50
1990 1114.00 1054.00 752.50 480.00 367.50 123.00 1.50 3.50 66.00 249.50 o 501.00 k 665.00 n 3962.00
1991 888.50 i 0.00 z 332.00 s 242.50 r 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
1992 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
1993 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
1994 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
1995 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
1996 1110.00 985.00 813.00 591.50 331.50 39.00 0.00 3.50 216.50 508.00 807.00 1036.50 6441.50
1997 1141.00 1013.00 776.50 674.50 259.00 80.00 20.50 0.50 141.00 522.50 826.00 1271.50 6726.00
1998 0.00 z 968.00 921.00 655.00 370.00 245.50 0.00 8.50 121.00 531.50 788.50 1215.00 5824.00
1999 1056.00 897.50 768.50 729.50 426.50 150.00 0.00 8.50 214.00 475.00 664.00 1138.50 6528.00
2000 1052.00 855.50 837.50 458.00 284.00 88.45 a 0.50 2.50 190.50 510.00 1097.00 1148.00 6523.95
2001 1256.00 962.00 763.00 588.50 263.50 125.00 0.00 0.50 72.00 431.00 772.50 1261.00 6495.00
2002 1264.00 1094.50 998.50 558.50 322.50 93.50 1.00 10.00 185.50 619.50 0.00 z 1071.00 6218.50
2003 936.50 981.50 808.00 565.00 337.00 111.00 0.00 6.50 175.00 338.00 962.00 1068.50 6289.00
2004 1389.00 1141.50 705.50 538.20 e 334.50 81.50 1.50 42.50 159.83 a 498.00 850.50 1093.50 6836.03
2005 1037.00 898.00 839.00 572.50 344.00 206.50 0.50 10.50 194.50 480.50 778.00 1141.50 6502.50
2006 1070.50 1024.50 971.13 e 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 3066.13
Period of Record Statistics
MEAN 1207.56 1002.92 889.10 607.37 359.70 137.56 9.61 22.58 185.73 506.13 857.12 1160.67 6888.61
S.D. 138.49 114.88 108.46 93.50 76.88 58.65 11.65 24.66 71.39 94.30 97.66 95.27 366.39
SKEW 0.35 0.42 0.20 0.07 0.17 -0.04 1.38 1.43 0.50 0.31 0.01 -0.06 0.53
MAX 1622.50 1249.00 1160.00 807.50 538.50 253.00 43.00 102.50 364.50 702.50 1097.00 1368.50 7824.50
MIN 936.50 794.50 664.00 431.50 204.50 25.00 0.00 0.00 66.00 319.50 653.50 958.00 6289.00
NO YRS 52 53 53 52 49 51 52 53 53 50 50 52 43