SILVER LAKE BRIGHTON, UTAH

Monthly Total Heating Degree Days

(427846)

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 237.50 261.00 410.50 793.00 1317.00 1464.00 4483.00
1949 1708.50 1408.00 1218.50 873.00 725.92 a 507.50 243.50 271.50 442.00 924.00 886.00 1389.50 10597.92
1950 1528.00 1184.00 1278.00 971.00 874.00 508.50 323.00 336.00 565.34 a 634.50 1024.50 1194.50 10421.34
1951 1480.00 1223.50 1375.00 955.00 753.00 573.00 228.50 335.00 494.00 886.50 1199.00 1473.00 10975.50
1952 1441.50 1367.00 1443.00 933.00 708.00 468.00 285.00 250.00 420.00 656.00 1300.00 1379.50 10651.00
1953 1231.00 1288.00 1191.00 1077.00 927.00 433.00 168.50 274.00 406.50 793.50 1016.50 1432.50 10238.50
1954 1296.50 1070.50 1314.50 865.50 624.50 478.50 146.50 316.20 a 453.00 737.50 997.50 1347.50 9648.20
1955 1556.50 1421.50 1371.00 1066.50 777.00 488.00 243.50 239.50 447.50 743.00 1235.50 1266.87 a 10856.37
1956 1296.00 1449.50 1269.00 975.50 679.00 368.00 245.00 334.50 387.00 799.50 1267.00 1371.50 10441.50
1957 1561.00 1070.00 1221.00 1042.50 778.50 470.50 240.00 239.00 526.00 871.00 1343.00 1304.00 10666.50
1958 1380.50 1099.00 1371.00 1109.50 602.50 380.50 270.00 182.50 456.00 744.00 1094.00 1198.50 9888.00
1959 1382.50 1290.50 1286.00 900.50 802.00 332.00 213.50 280.00 593.00 864.00 1122.50 1264.00 10330.50
1960 1503.00 1452.50 1141.00 929.50 706.00 364.50 169.00 292.00 387.50 858.50 1095.50 1350.00 10249.00
1961 1319.00 1178.00 1235.50 983.00 696.00 284.00 179.50 210.00 659.00 862.00 1210.00 1518.50 10334.50
1962 1475.50 1190.50 1343.00 860.36 b 754.00 447.50 281.00 263.50 413.50 680.50 992.00 1258.00 9959.36
1963 1562.50 1106.52 a 1320.00 1073.50 655.00 507.41 a 195.00 211.50 392.50 659.50 1069.00 1366.00 10118.43
1964 1528.30 a 1507.50 1452.00 1019.50 775.00 525.54 b 158.50 304.00 491.00 683.00 1174.66 a 1379.00 10997.99
1965 1319.00 1276.50 1391.00 916.50 829.00 524.00 258.50 350.00 684.00 665.00 1001.50 1296.00 10511.00
1966 1484.50 1384.50 1133.50 977.50 621.50 423.00 149.50 271.50 438.00 854.00 1033.00 0.00 z 8770.50
1967 1345.92 a 1211.50 1170.50 1084.00 858.00 555.50 194.50 223.00 442.00 772.00 1014.50 1532.00 10403.42
1968 1333.50 1143.00 1149.50 1092.50 812.50 475.50 200.00 411.00 582.50 772.50 1210.00 1455.45 a 10637.95
1969 1333.00 1262.00 1341.50 935.00 594.00 557.00 212.00 174.00 390.50 1029.50 1116.00 1298.50 10243.00
1970 1410.00 1122.00 1345.50 1174.50 756.00 472.00 236.00 183.50 595.00 1021.50 1136.50 1414.00 10866.50
1971 1401.50 1304.00 1228.50 970.50 756.63 d 0.00 z 141.00 0.00 z 242.50 u 910.88 a 1201.00 1580.50 9494.51
1972 1455.00 1214.50 1101.00 977.00 716.50 0.00 z 220.10 a 275.50 582.41 a 848.37 a 1284.50 1517.00 10191.88
1973 1467.50 1191.00 1305.50 0.00 z 720.50 456.50 259.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5400.50
1974 1525.50 1278.50 1126.50 1024.14 a 695.50 339.00 230.00 307.00 476.90 a 791.03 b 1165.18 b 1478.70 a 10437.95
1975 1479.98 b 1281.50 1302.00 1215.50 875.00 582.93 a 224.00 345.00 500.50 880.00 1205.50 1303.00 11194.91
1976 1417.00 1153.50 1335.00 966.50 665.00 493.00 188.50 295.00 471.50 834.93 a 1037.50 1348.50 10205.93
1977 1467.50 1196.00 1339.00 908.50 862.00 319.50 237.00 287.02 b 501.00 766.50 1078.00 1275.50 10237.52
1978 1348.50 1187.50 1048.50 952.00 821.00 448.50 217.00 346.50 548.28 a 704.00 1168.00 1582.00 10371.78
1979 1638.50 1252.50 1220.50 996.50 772.50 418.39 b 220.62 a 316.00 356.00 775.00 1336.55 a 1251.50 10554.56
1980 1364.00 1152.00 1330.00 971.50 812.00 437.50 176.00 286.50 487.76 a 835.50 1050.00 1162.00 10064.76
1981 1185.00 1173.00 1185.50 814.50 791.00 402.00 172.00 196.85 a 389.00 921.73 a 1022.00 1314.92 a 9567.50
1982 1182.00 1257.00 1272.00 1153.00 823.00 521.00 278.50 214.00 548.00 984.50 1235.00 1366.00 10834.00
1983 1261.00 1194.50 1206.00 1160.00 893.50 532.00 282.00 259.50 440.00 751.00 1176.50 1452.50 10608.50
1984 1482.50 1290.50 1292.50 1100.00 722.50 536.50 240.00 284.00 527.50 1068.00 1204.14 a 1415.00 11163.14
1985 1487.00 1378.50 1251.37 a 870.00 670.50 393.00 185.00 264.00 610.00 856.50 1274.00 1331.00 10570.87
1986 1187.50 1179.00 1021.00 966.50 773.50 356.50 295.00 193.50 652.50 897.50 1139.00 1323.50 9985.00
1987 1451.00 1196.50 1279.00 824.50 659.50 354.50 310.00 310.00 435.00 689.50 1151.50 1470.50 10131.50
1988 1467.50 1270.50 1288.00 891.00 724.00 269.50 116.50 223.50 530.00 632.00 1193.00 1408.00 10013.50
1989 1505.50 1286.00 1092.50 844.50 713.50 477.00 136.00 278.00 473.50 805.00 1107.00 1391.50 10110.00
1990 1378.50 1324.50 1129.50 844.00 796.50 0.00 z 191.00 267.00 352.00 817.50 1110.00 1632.00 9842.50
1991 1457.00 1069.50 1303.50 1074.50 834.00 445.00 198.00 236.00 494.00 806.00 1192.50 1326.00 10436.00
1992 1337.00 1134.00 1085.00 788.00 570.00 429.50 309.00 210.50 454.50 712.00 1344.00 1474.50 9848.00
1993 1398.50 1243.00 1064.00 1044.00 695.50 574.50 391.50 334.00 517.00 903.50 1293.00 1392.00 10850.50
1994 1345.00 1332.50 1136.50 938.50 640.50 292.00 135.50 142.50 372.50 908.00 1317.50 1333.50 9894.50
1995 1381.50 1027.00 1233.00 1044.00 879.00 587.00 294.50 186.00 398.50 860.00 978.50 1277.00 10146.00
1996 1400.50 1196.50 1210.50 990.00 736.25 a 331.00 171.50 191.50 553.00 835.00 1110.00 1376.50 10102.25
1997 1396.60 b 1296.00 1143.50 1055.00 684.00 406.50 266.00 204.50 462.50 842.50 1149.00 1389.00 10295.10
1998 1324.00 1225.00 1256.00 1049.00 776.00 592.00 125.00 197.50 419.00 884.50 1141.50 1426.00 10415.50
1999 1326.00 1196.22 a 1128.50 1102.00 844.23 a 460.50 201.50 234.50 532.50 734.91 b 907.50 b 1370.00 10038.37
2000 1341.00 1127.00 1207.50 832.00 634.00 361.50 125.00 152.00 476.38 a 840.32 c 1350.00 c 1325.50 9772.20
2001 1411.50 1269.00 1133.50 994.14 a 629.82 a 386.79 b 142.50 146.00 346.55 a 767.00 1047.32 b 1480.52 b 9754.63
2002 1494.50 1310.50 1360.50 925.50 744.00 314.50 92.00 223.72 a 504.50 908.50 1221.50 1380.50 10480.22
2003 1154.50 1323.50 1211.00 953.50 699.00 0.00 z 70.50 140.00 484.00 626.00 0.00 z 1344.50 8006.50
2004 0.00 z 1379.50 1060.50 908.00 699.00 402.50 218.50 320.50 508.97 a 859.50 1168.00 1324.45 b 8849.41
2005 1256.50 1240.50 1222.00 988.80 e 815.00 501.60 e 159.65 a 252.00 475.50 789.00 1070.00 1398.10 a 10168.65
2006 1391.56 d 1329.42 d 1366.87 d 922.50 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5010.34
Period of Record Statistics
MEAN 1404.29 1244.24 1238.57 980.25 744.79 444.64 212.04 255.95 481.39 813.17 1147.93 1378.12 10345.80
S.D. 112.86 104.53 103.83 97.34 83.60 85.49 62.25 60.73 79.27 100.68 113.95 97.51 382.62
SKEW -0.01 0.27 -0.11 0.23 0.04 -0.16 0.19 0.05 0.50 0.17 -0.08 0.29 0.23
MAX 1708.50 1507.50 1452.00 1215.50 927.00 592.00 391.50 411.00 684.00 1068.00 1350.00 1632.00 11194.91
MIN 1154.50 1027.00 1021.00 788.00 570.00 269.50 70.50 140.00 346.55 626.00 886.00 1162.00 9567.50
NO YRS 57 58 58 57 57 53 58 56 56 57 56 56 50