ECHO DAM, UTAH

Monthly Total Heating Degree Days

(422385)

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 24.50 29.50 184.50 533.00 1053.00 1370.00 3194.50
1949 1777.00 1267.00 910.00 489.00 313.50 183.50 7.00 33.50 200.36 b 646.00 712.50 1215.50 7754.86
1950 1328.50 1054.50 946.50 630.50 499.50 185.50 30.00 34.00 228.50 365.00 767.00 1002.00 7071.50
1951 1299.00 914.87 e 1003.50 623.50 377.50 280.50 15.00 46.50 214.50 554.00 1043.00 1320.50 7692.37
1952 1369.00 1295.00 1231.50 639.00 328.50 144.50 33.50 14.00 150.00 439.00 1057.00 1187.50 7888.50
1953 953.50 991.00 877.82 a 745.00 556.00 198.00 1.00 17.71 c 162.00 508.92 a 742.00 1239.50 6992.45
1954 1097.50 877.33 d 948.08 a 531.00 360.50 250.00 12.00 70.00 211.50 547.00 753.50 1295.50 6953.92
1955 1496.50 1229.50 1063.00 739.50 417.50 223.00 51.50 10.50 217.00 520.50 1025.50 1057.00 8051.00
1956 1121.00 1283.50 925.00 616.50 347.00 124.00 28.00 67.00 200.00 551.50 1058.50 1248.00 7570.00
1957 1447.50 908.50 875.50 695.50 455.00 177.00 11.50 18.00 243.50 570.50 1109.50 1146.00 7658.00
1958 1381.50 909.00 1042.50 759.31 a 267.00 101.00 23.00 8.00 208.50 502.00 944.00 1012.00 7157.81
1959 1168.00 1022.00 914.50 583.00 455.00 92.50 20.50 j 40.09 b 289.50 480.00 f 889.00 1184.00 6637.59
1960 1316.00 1250.00 879.37 a 613.50 419.50 100.00 0.00 69.50 122.50 571.50 853.50 1207.50 7402.87
1961 1211.00 928.00 913.00 640.00 344.00 62.00 1.00 5.00 343.00 590.50 1005.50 1269.00 7312.00
1962 1420.50 959.50 1045.00 546.50 394.50 180.00 28.50 62.50 190.00 467.00 804.50 1105.15 a 7203.65
1963 1430.00 821.00 958.50 747.50 315.00 209.50 4.00 17.00 131.00 394.00 841.00 1259.00 7127.50
1964 1440.50 1363.50 1269.00 732.00 448.00 263.00 8.50 103.50 297.50 502.50 998.00 1175.50 8601.50
1965 1163.50 1109.00 1129.00 645.00 511.50 246.00 24.50 98.50 468.00 526.50 803.00 1216.50 7941.00
1966 1423.50 1245.00 984.50 714.00 357.50 189.50 5.50 52.50 227.50 609.00 770.50 1318.50 7897.50
1967 1170.00 1007.50 791.50 710.50 461.00 202.24 a 1.50 0.50 173.00 525.50 780.00 1406.00 7229.24
1968 1407.00 1028.50 798.00 744.00 448.50 160.50 11.00 114.50 314.50 575.10 b 963.00 1228.50 7793.10
1969 1111.00 1189.00 532.00 m 498.50 219.50 182.50 19.50 6.00 147.00 723.50 904.50 1172.00 6173.00
1970 1191.50 883.50 953.00 789.50 396.00 183.00 12.50 1.00 340.00 757.00 869.00 1303.00 7679.00
1971 1195.50 1057.00 996.00 656.50 443.50 158.00 1.50 6.50 329.50 631.50 964.00 1431.50 7871.00
1972 1307.00 1055.50 738.50 641.50 359.00 79.50 16.50 17.50 254.00 525.00 985.50 1427.00 7406.50
1973 1564.50 1222.50 1015.00 739.00 358.50 183.50 9.00 34.00 283.50 519.50 947.00 1208.50 8084.50
1974 1421.00 1270.00 786.50 654.00 368.50 123.50 8.00 48.00 216.50 495.50 876.00 1260.00 7527.50
1975 1388.00 1073.50 951.00 808.00 512.00 245.00 3.50 79.50 270.50 598.00 999.00 1145.00 8073.00
1976 1250.50 1093.00 1052.50 627.50 317.00 205.00 1.55 a 42.00 175.00 630.50 901.00 1214.50 7510.05
1977 1289.00 1072.50 1027.50 537.00 458.00 25.50 3.00 36.50 194.00 501.50 827.50 1075.00 7047.00
1978 1200.50 964.00 802.50 621.00 452.50 114.50 13.50 75.00 259.50 492.00 1014.00 1401.50 7410.50
1979 1566.50 1116.50 913.00 645.50 363.00 146.50 1.50 23.00 117.50 485.50 1098.50 1201.50 7678.50
1980 1229.00 1072.00 960.00 595.50 430.00 131.00 0.00 45.50 184.50 548.50 889.00 1010.00 7095.00
1981 1024.50 919.00 845.00 490.00 405.50 134.50 3.00 4.00 122.50 628.50 771.00 1055.00 6402.50
1982 1330.00 1184.00 909.50 724.00 443.50 167.00 36.50 1.00 257.50 675.50 1009.00 1268.00 8005.50
1983 1081.00 1000.00 855.50 800.50 501.00 195.00 44.50 4.00 191.00 492.00 938.00 1263.00 7365.50
1984 1541.50 1293.00 986.50 710.50 333.00 213.50 10.50 2.50 234.00 748.50 959.00 1364.00 8396.50
1985 1511.00 1255.00 1049.50 528.50 330.50 121.00 6.50 48.50 343.00 555.00 1021.50 1390.50 8160.50
1986 1250.00 868.00 692.00 619.50 408.00 40.00 22.50 3.50 358.00 573.00 886.00 1146.50 6867.00
1987 1412.50 971.50 922.00 485.50 323.00 90.00 37.50 62.50 218.50 479.50 901.50 1240.00 7144.00
1988 1403.00 1117.50 962.00 541.00 385.00 69.50 0.00 13.50 251.00 404.50 961.50 1411.00 7519.50
1989 1570.00 1343.00 798.00 499.00 362.00 181.00 1.50 45.50 187.00 543.50 874.50 1219.00 7624.00
1990 1238.50 1099.50 800.00 520.00 422.00 144.00 6.50 17.00 95.00 561.00 867.00 1573.00 7343.50
1991 1512.00 1027.50 887.50 698.50 457.00 139.00 10.50 1.50 231.50 551.00 927.50 1279.50 7723.00
1992 1380.50 929.50 731.50 460.50 246.50 125.00 38.50 66.50 180.50 468.50 1072.50 1387.50 7087.50
1993 1470.50 1257.50 915.50 655.50 294.00 238.00 134.00 71.00 274.50 598.00 1118.50 1241.50 8268.50
1994 1162.00 1141.00 802.00 573.50 277.00 88.00 12.00 11.50 163.50 623.50 1098.00 1254.00 7206.00
1995 1258.00 881.00 847.50 662.50 517.00 219.00 62.50 14.50 201.50 617.00 735.00 1022.50 7038.00
1996 1173.50 1157.41 a 891.00 647.50 391.00 94.00 3.50 20.00 300.50 591.50 863.50 1127.50 7260.91
1997 1262.00 1182.00 855.50 734.50 325.50 110.50 48.00 6.50 182.50 565.00 917.50 1333.50 7523.00
1998 1129.00 968.00 959.50 668.00 404.50 292.00 6.50 10.50 143.50 572.50 839.50 1201.00 7194.50
1999 1079.32 a 917.50 782.00 708.00 453.50 175.50 3.50 15.00 284.00 538.00 728.00 1245.50 6929.82
2000 1168.00 921.00 865.00 493.00 309.50 120.00 8.00 2.50 242.50 574.00 1186.00 1431.34 b 7320.84
2001 1483.00 1101.00 831.50 618.00 320.00 138.00 4.00 3.00 133.50 517.00 803.50 1345.92 a 7298.42
2002 1328.00 1268.00 1001.50 576.00 375.00 122.50 2.00 26.50 193.50 661.50 945.00 1120.00 7619.50
2003 1110.00 1097.00 824.50 615.00 391.00 181.50 1.50 7.50 226.50 422.50 1054.50 1133.50 7065.00
2004 1510.00 1219.00 740.50 573.50 382.00 96.50 8.50 72.50 236.00 544.00 897.50 1172.50 7452.50
2005 1070.00 988.50 854.50 578.50 379.50 241.00 17.50 40.00 263.50 533.50 880.50 1338.00 7185.00
2006 1204.50 1141.50 964.00 555.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3865.50
Period of Record Statistics
MEAN 1306.85 1082.43 917.10 632.67 389.31 159.40 16.51 32.72 225.23 551.68 922.49 1239.25 7485.13
S.D. 166.99 142.15 114.72 89.56 72.00 60.59 21.67 29.35 70.44 78.88 113.86 121.85 428.94
SKEW 0.25 0.13 0.65 -0.02 0.03 0.05 3.16 0.89 0.77 0.29 0.09 0.13 0.33
MAX 1777.00 1363.50 1269.00 808.00 556.00 292.00 134.00 114.50 468.00 757.00 1186.00 1573.00 8601.50
MIN 953.50 821.00 692.00 460.50 219.50 25.50 0.00 0.50 95.00 365.00 712.50 1002.00 6402.50
NO YRS 58 58 57 58 57 57 57 58 58 57 58 58 55