ALYESKA, ALASKA

Monthly Total Heating Degree Days

(500243)

Base Temperature = 65 F

File last updated on Jul 24, 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
1963 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 1219.00 f 1050.50 1050.50
1964 1288.10 b 1202.00 1284.90 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 0.00 z 3775.00
1965 1470.50 1296.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 428.00 0.00 z 0.00 z 1593.00 4787.50
1966 1578.50 1302.50 1458.00 897.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5236.50
1967 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 176.00 l 268.00 447.00 734.00 986.50 1183.50 1448.50 5067.50
1968 1633.00 1234.50 1032.00 956.50 454.50 h 333.50 309.00 317.23 a 612.00 1095.00 0.00 z 0.00 z 7522.73
1969 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 1173.00 1021.00 2194.00
1970 1611.50 901.50 937.50 941.90 a 617.00 302.50 g 176.50 389.50 616.00 1039.50 1050.00 a 1546.50 9827.40
1971 1986.58 a 1197.50 1486.50 981.00 591.00 i 536.00 363.50 365.80 a 203.00 s 1005.84 c 1232.78 c 1439.20 d 10594.70
1972 1748.40 a 1426.22 d 1525.64 c 909.00 f 500.00 j 404.50 f 200.39 c 316.56 e 598.33 c 458.00 p 777.50 i 1453.68 c 7269.23
1973 1280.50 i 0.00 z 0.00 z 272.00 u 0.00 z 244.50 m 0.00 z 321.50 g 354.00 m 780.00 g 1052.50 h 962.00 h 0.00
1974 1258.50 g 0.00 z 937.00 h 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
1975 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 263.00 h 0.00 z 0.00 z 0.00 z 358.50 u 0.00
1976 1391.26 b 1430.67 b 1232.52 b 902.14 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1170.85 e 6127.43
1977 383.00 r 842.15 b 944.00 g 749.50 f 0.00 z 208.00 o 142.00 o 323.71 e 0.00 z 0.00 z 374.50 v 0.00 z 1165.87
1978 1239.48 a 1035.00 1080.00 853.00 95.50 z 433.33 c 264.50 h 246.50 0.00 z 838.00 1141.50 1248.00 8114.82
1979 1190.00 1630.00 1055.00 854.00 633.50 0.00 z 208.00 262.00 406.50 183.00 v 939.00 1598.00 8776.00
1980 1592.50 1045.50 1135.50 819.31 a 666.50 e 132.00 t 102.00 r 206.50 o 253.50 q 461.00 n 601.50 l 1926.00 7185.31
1981 935.00 1053.00 937.00 883.00 0.00 z 287.00 h 348.50 416.50 617.59 a 945.50 1250.50 1339.00 8725.59
1982 1639.00 1394.50 1194.50 992.00 728.00 407.50 339.50 272.00 h 577.00 1134.00 1163.28 a 1119.50 10688.78
1983 1393.00 1073.50 1017.00 857.50 726.00 453.00 359.00 355.50 607.50 889.00 1011.50 1297.72 b 10040.22
1984 1305.62 a 1233.00 934.00 887.50 661.50 427.50 325.00 337.00 522.00 874.50 1192.50 1265.00 9965.12
1985 943.50 1363.00 1135.00 1098.00 700.50 486.50 271.00 387.50 565.50 1054.50 1464.50 1004.50 10474.00
1986 1091.00 1125.50 1258.50 1053.00 621.50 375.00 252.00 384.40 a 511.50 783.50 1118.50 1027.00 9601.40
1987 1134.00 990.00 1165.00 863.00 611.00 472.50 266.50 277.50 593.00 831.50 1071.50 1331.50 9607.00
1988 1261.00 1069.00 988.00 897.50 668.00 353.00 270.50 337.50 569.00 910.50 1204.00 1265.00 9793.00
1989 1825.00 1338.50 1307.00 822.50 0.00 z 393.50 181.00 253.50 476.50 950.00 1272.00 1077.50 9897.00
1990 1437.50 1556.50 1112.00 786.50 562.00 300.00 210.50 294.00 517.50 967.00 1535.50 1409.00 10688.00
1991 1419.50 1133.50 1200.00 833.00 668.00 347.50 311.00 373.50 500.00 948.50 1065.50 1290.50 10090.50
1992 1194.00 1381.00 1189.00 934.50 724.92 e 324.50 251.50 351.00 779.00 982.00 1088.00 1443.00 10642.42
1993 1412.05 a 1163.50 1057.00 780.50 529.00 318.00 170.00 263.00 527.50 786.00 1098.00 1071.50 9176.05
1994 1169.22 a 1299.00 1192.50 820.50 654.00 334.50 300.00 235.00 538.00 933.50 1411.50 1358.00 10245.72
1995 1284.50 1179.00 1421.50 787.00 630.50 378.00 285.00 321.50 381.00 810.00 1229.00 1232.00 9939.00
1996 1671.00 1269.00 1077.50 864.50 542.00 365.50 256.00 331.50 576.00 1175.50 1170.00 1482.00 10780.50
1997 1396.55 a 850.37 a 1225.00 790.50 499.50 277.50 158.00 226.50 453.00 1020.50 982.50 1345.00 9224.92
1998 1337.00 928.00 1039.00 835.00 675.00 391.50 272.50 383.00 525.50 835.50 1069.00 1432.00 9723.00
1999 1488.00 1546.00 1215.00 894.50 692.50 330.00 234.50 282.00 492.50 903.00 1176.00 1365.50 10619.50
2000 1509.00 990.50 987.00 822.00 648.50 342.00 286.50 347.72 a 556.50 883.50 945.50 1034.50 9353.22
2001 1003.00 1032.50 1030.00 848.00 673.00 285.00 279.50 258.50 483.00 1018.00 1162.00 1503.00 9575.50
2002 1138.50 1063.50 1245.50 990.50 575.50 375.00 221.00 286.50 475.00 674.50 795.50 1095.50 8936.50
2003 1100.00 888.50 1161.50 819.00 582.00 353.50 159.00 278.00 0.00 z 659.00 1216.50 1286.50 8503.50
2004 1611.50 984.50 1170.50 844.50 478.50 224.00 138.00 115.00 581.00 788.50 0.00 z 1169.00 8105.00
2005 1289.50 1123.50 1000.00 758.50 475.50 279.00 164.50 222.50 437.50 821.00 1313.50 1053.00 8938.00
2006 1428.00 1117.50 1246.50 877.50 580.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5249.50
Period of Record Statistics
MEAN 1382.32 1176.05 1159.25 877.82 623.11 366.55 252.77 312.09 541.91 918.13 1157.54 1299.78 9870.68
S.D. 244.26 200.61 152.94 78.42 73.44 70.48 64.04 68.20 87.02 123.83 154.02 205.78 581.03
SKEW 0.23 0.35 0.63 0.96 -0.52 0.40 -0.07 -0.48 0.61 -0.04 0.26 0.61 0.01
MAX 1986.58 1630.00 1525.64 1098.00 728.00 536.00 363.50 447.00 779.00 1175.50 1535.50 1926.00 10780.50
MIN 935.00 842.15 934.00 758.50 475.50 224.00 138.00 115.00 381.00 659.00 795.50 1004.50 8936.50
NO YRS 37 38 36 34 27 27 31 32 30 30 30 36 20