ALTA, UTAH

Monthly Total Heating Degree Days

(420072)

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 z 0.00 z 0.00 z 0.00 z 590.50 q 1406.00 1406.00
1949 1596.50 1305.50 1183.00 644.50 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 524.00 i 1357.36 c 5442.36
1950 1499.00 1097.00 1267.50 483.50 o 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 962.68 b 1063.50 5889.68
1951 1405.00 1108.50 1282.00 564.50 l 0.00 z 0.00 z 94.50 i 240.50 188.50 n 0.00 z 1104.50 1423.50 6564.00
1952 1369.68 a 1261.00 1393.50 0.00 z 0.00 z 0.00 z 63.00 q 125.50 g 0.00 z 0.00 z 1218.33 c 1273.00 6515.52
1953 1167.00 1234.59 a 1141.50 747.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 734.50 958.50 1412.50 6648.59
1954 1240.50 955.50 1271.00 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 411.00 o 939.00 1299.00 5705.00
1955 1534.00 1441.50 1450.50 1134.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1296.50 1299.50 8156.00
1956 1261.50 1431.00 1319.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1154.48 a 1247.75 a 6414.23
1957 1465.78 a 1039.50 1221.00 1056.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1257.50 1234.50 7274.28
1958 1253.00 1052.00 1322.50 914.00 f 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 372.50 s 1097.00 4724.50
1959 1296.50 1237.00 1248.50 743.00 f 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1323.21 b 1153.00 6258.21
1960 1430.50 1419.50 1119.00 393.50 p 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 464.00 r 1241.00 5210.00
1961 1167.31 b 1152.00 1213.00 1012.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 458.00 r 1444.08 a 5988.39
1962 1370.50 1161.50 0.00 z 330.00 s 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1114.50 3646.50
1963 1482.50 1002.00 1251.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1242.00 4978.00
1964 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
1965 1301.50 1251.00 1406.00 1024.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4983.00
1966 1435.00 1337.50 1102.50 431.00 o 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 412.50 o 964.50 0.00 z 4839.50
1967 1316.50 1171.33 a 1154.50 1132.00 0.00 z 0.00 z 0.00 z 84.00 398.00 740.50 987.00 1494.41 b 8478.25
1968 1290.50 1119.50 1186.50 1178.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1431.50 6206.00
1969 1356.50 1270.00 1376.00 960.50 494.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1007.00 1254.50 7719.00
1970 1404.00 1113.00 1368.00 0.00 z 0.00 z 75.50 q 171.00 119.50 596.50 937.50 1088.00 1383.50 8181.00
1971 1384.00 1267.50 1344.50 968.50 778.00 416.50 192.50 185.50 608.50 887.00 1163.50 1488.50 10684.50
1972 1424.50 1183.00 1041.50 994.00 683.00 352.50 188.00 206.50 524.00 799.00 0.00 z 1434.50 8830.50
1973 1361.00 1094.50 0.00 z 0.00 z 0.00 z 388.50 207.00 189.10 a 543.00 753.00 1151.50 0.00 z 5687.60
1974 0.00 z 1258.50 1124.50 1044.50 701.00 322.00 168.00 234.00 381.00 714.00 1065.00 1395.50 8408.00
1975 1410.50 1257.00 1243.50 1180.20 e 851.95 c 523.50 102.00 293.00 436.50 390.00 u 1193.50 1263.52 b 9755.16
1976 1412.50 1100.45 a 1357.91 c 0.00 z 614.04 e 477.50 143.50 253.50 442.00 799.50 980.50 1228.00 8809.40
1977 1447.00 1101.50 1318.50 857.59 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4724.59
1978 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
1979 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 388.00 138.00 235.50 267.50 659.50 1257.00 1171.50 4117.00
1980 1315.00 1102.00 1349.00 941.50 835.50 384.50 130.50 273.50 423.50 770.50 938.00 1026.00 9489.50
1981 1094.00 1163.50 1212.50 830.50 808.50 378.50 131.50 107.50 355.00 904.50 961.00 1295.50 9242.50
1982 1494.50 1241.00 1299.50 1153.00 825.50 465.00 244.50 134.50 476.00 981.00 1189.00 1344.00 10847.50
1983 1226.00 1181.00 1234.50 1184.50 954.00 516.50 222.50 178.00 376.50 689.50 1138.45 a 1431.50 10332.95
1984 1370.50 1224.50 1273.00 1100.50 735.00 505.00 187.50 199.50 482.00 1032.00 1151.00 1350.00 10610.50
1985 1374.50 1397.00 1269.00 869.50 616.00 314.00 137.50 196.00 575.50 805.00 1278.00 1232.77 a 10064.77
1986 1101.50 1155.00 1013.50 1010.50 781.00 291.00 e 85.00 v 79.50 o 634.00 826.50 1102.50 1234.00 9149.50
1987 1358.00 1158.00 1218.00 729.50 619.00 295.00 257.00 257.50 376.50 614.50 1073.50 1397.00 9353.50
1988 1413.00 1180.50 1290.00 843.50 699.50 215.50 73.50 163.50 440.50 547.00 1178.50 1317.00 9362.00
1989 1346.00 1268.50 1054.00 801.50 659.50 443.00 93.00 206.00 383.50 783.00 1042.00 1289.50 9369.50
1990 1340.50 1256.50 1118.50 816.00 736.00 331.00 140.00 194.00 276.50 743.50 1041.50 1531.50 9525.50
1991 1393.50 960.50 1248.50 1059.00 799.00 395.50 146.50 168.00 444.50 736.50 1157.50 1192.50 9701.50
1992 1234.50 1074.50 1017.00 721.50 529.50 382.50 265.00 0.00 z 394.00 663.50 1289.00 1408.50 8979.50
1993 1388.50 1239.50 1055.50 1023.00 600.50 512.50 329.50 265.00 442.00 817.00 1212.00 1295.50 10180.50
1994 1287.50 1235.50 1036.00 0.00 z 569.00 235.50 98.00 107.50 316.00 846.00 1267.00 1246.50 8244.50
1995 1307.50 955.50 1168.00 1005.00 833.00 528.00 217.50 120.00 383.50 807.00 923.00 1225.00 9473.00
1996 1348.00 1129.45 a 1128.00 958.50 694.50 265.50 111.00 146.00 480.00 793.50 1059.83 a 1343.00 9457.27
1997 1328.00 1221.00 1053.00 1049.50 621.00 335.50 205.00 158.00 403.50 776.50 1089.50 1337.00 9577.50
1998 1303.55 a 1226.00 1216.00 1004.50 726.50 549.00 88.00 151.50 376.00 814.50 1100.00 1354.50 9910.05
1999 1295.50 1151.50 1082.00 1068.10 a 786.00 390.50 163.00 182.00 476.38 a 670.50 864.00 1358.50 9487.98
2000 1332.50 1113.00 1184.50 798.50 600.50 295.00 88.50 110.50 417.50 789.50 1324.66 a 1271.50 9326.16
2001 1327.50 1188.96 a 1112.90 a 943.50 535.30 c 307.76 a 116.25 a 83.91 b 292.50 0.00 z 988.50 1424.45 a 8321.54
2002 1451.00 1246.50 1349.00 884.00 674.00 292.00 67.00 171.50 466.00 866.50 1191.00 1322.00 9980.50
2003 1172.50 1273.00 1164.00 940.00 648.50 371.50 40.00 114.46 e 434.00 594.00 1023.00 f 1311.00 8062.96
2004 1341.00 1325.50 981.00 879.00 656.50 335.00 175.50 284.50 462.00 826.00 1093.50 0.00 z 8359.50
2005 1210.50 1141.50 1179.00 941.50 686.00 478.00 93.50 201.00 435.00 737.50 1048.50 1365.00 9517.00
2006 1348.00 1251.50 1285.50 855.52 a 152.50 v 69.00 s 27.00 u 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4740.52
Period of Record Statistics
MEAN 1344.18 1190.61 1213.19 972.46 698.49 384.28 155.51 182.79 434.84 778.24 1108.49 1308.97 9785.44
S.D. 102.45 111.47 114.84 124.92 106.89 91.13 64.93 58.67 87.74 103.72 121.27 110.31 490.92
SKEW -0.26 0.04 -0.10 -0.12 0.20 0.19 0.56 0.12 0.34 0.13 0.02 -0.40 0.91
MAX 1596.50 1441.50 1450.50 1184.50 954.00 549.00 329.50 293.00 634.00 1032.00 1324.66 1531.50 10847.50
MIN 1094.00 955.50 981.00 721.50 494.50 215.50 40.00 83.91 267.50 547.00 864.00 1026.00 9242.50
NO YRS 54 55 53 38 32 33 33 34 35 34 44 51 21