DUTCH HARBOR, ALASKA

Monthly Total Heating Degree Days

(502587)

Base Temperature = 65 F

File last updated on Jun 7, 2013
*** Note *** Provisional Data *** After Year/Month 201305
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
1951 1058.50 815.50 978.50 830.50 712.00 554.50 410.50 358.50 524.50 692.85 a 830.00 884.00 8649.85
1952 869.00 980.00 998.00 961.00 767.00 569.50 470.50 362.50 524.00 695.50 846.00 1109.00 9152.00
1953 1063.00 974.00 1032.50 852.50 725.00 504.00 385.00 271.50 485.50 775.00 846.00 995.00 8909.00
1954 1108.00 1106.00 948.50 874.50 742.50 587.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5366.50
1955 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
1956 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
1957 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
1958 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
1959 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
1960 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
1961 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
1962 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
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 0.00 z 0.00 z 0.00
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 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
1966 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
1967 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
1968 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
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 0.00 z 0.00 z 0.00
1970 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
1971 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
1972 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
1973 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
1974 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
1975 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
1976 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
1977 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
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1980 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
1981 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
1982 0.00 z 0.00 z 0.00 z 876.00 759.00 536.00 471.50 417.50 564.83 a 738.26 d 809.00 969.78 a 6141.87
1983 1151.65 a 614.00 j 1006.00 821.50 717.00 524.00 411.00 305.50 477.00 712.50 84.00 z 882.98 a 7009.13
1984 1034.88 a 1210.75 c 990.45 a 479.00 p 801.83 e 513.50 393.50 265.00 434.48 a 708.72 b 825.00 c 788.00 7966.12
1985 877.00 930.50 1117.72 d 956.00 764.00 588.50 457.50 358.00 g 297.00 j 548.50 h 543.50 k 556.50 l 5691.22
1986 897.00 h 1056.42 d 1102.22 d 892.80 e 754.13 e 602.00 358.00 h 331.50 h 462.50 694.50 726.96 b 592.00 i 6291.54
1987 735.00 g 852.25 d 890.06 e 623.00 i 572.00 h 406.00 i 456.00 424.18 a 566.38 a 704.06 e 938.04 b 1021.45 a 5852.41
1988 1023.00 b 939.50 0.00 z 941.90 a 0.00 z 600.00 0.00 z 433.50 545.50 779.00 897.86 b 1027.65 a 7187.90
1989 930.50 f 816.67 d 944.35 d 589.50 j 778.74 b 613.85 d 373.79 e 382.52 c 480.00 d 656.96 e 0.00 z 975.97 b 6022.84
1990 970.50 928.67 a 0.00 z 0.00 z 693.00 541.67 c 0.00 z 349.27 a 493.50 696.43 b 784.00 781.95 b 6238.98
1991 974.00 1085.00 875.75 a 865.50 749.00 572.00 461.00 442.78 a 552.00 721.27 a 979.50 1002.69 b 9280.49
1992 1016.11 d 984.00 1012.00 902.50 744.00 536.50 486.50 455.70 a 558.50 797.50 936.50 934.50 9364.31
1993 1042.93 c 901.50 935.50 843.00 705.50 561.50 415.50 374.07 a 454.14 a 662.00 811.00 972.50 8679.13
1994 977.00 823.00 1135.50 914.00 809.00 544.50 425.50 359.00 530.00 779.13 a 807.41 a 984.50 9088.55
1995 1148.66 c 883.56 a 1014.50 898.00 715.00 565.00 428.50 353.50 456.00 682.00 a 841.50 839.00 8825.22
1996 947.50 920.50 811.50 846.50 660.00 496.50 380.00 345.50 519.00 696.50 770.50 0.00 z 7394.00
1997 968.50 856.50 971.00 870.50 629.00 509.50 385.00 247.50 464.50 665.50 821.00 1080.50 8469.00
1998 1092.00 930.74 a 840.50 829.00 755.00 521.00 445.00 394.00 457.24 a 707.00 813.00 955.50 8739.98
1999 1006.00 991.00 1017.50 826.50 728.00 595.00 392.50 418.00 537.00 742.89 c 841.55 a 0.00 z 8095.94
2000 1101.50 851.60 c 961.50 876.50 789.50 562.50 423.00 375.50 522.41 a 764.50 798.50 878.33 a 8905.34
2001 990.50 839.00 990.00 800.50 823.50 0.00 z 372.50 339.50 510.50 713.50 854.50 988.90 a 8222.90
2002 948.50 994.50 865.50 794.50 618.50 513.50 393.00 355.50 437.50 646.00 773.50 941.50 8282.00
2003 905.00 837.50 976.00 728.00 675.00 503.50 386.50 300.50 450.50 651.50 713.50 0.00 z 7127.50
2004 971.00 863.50 965.50 849.50 599.00 521.00 387.00 300.00 433.50 635.50 805.00 918.50 8249.00
2005 825.00 817.50 882.50 853.50 695.00 504.00 406.50 328.00 383.50 657.00 867.50 854.50 8074.50
2006 1080.00 852.50 854.00 843.50 719.00 524.00 373.50 340.50 493.50 636.00 759.00 995.00 8470.50
2007 1022.00 775.00 1111.35 a 834.00 773.00 537.00 449.00 306.00 402.50 690.00 813.50 972.50 8685.85
2008 1037.00 0.00 z 0.00 z 399.50 p 801.00 541.50 459.50 460.50 477.00 738.00 900.50 894.00 6309.00
2009 1056.50 813.56 a 998.50 850.50 680.00 541.00 448.50 445.50 558.50 694.50 884.00 877.00 8848.06
2010 967.50 938.50 1167.15 a 897.00 759.00 560.50 467.50 385.00 373.00 705.50 800.00 927.00 8947.65
2011 917.37 d 806.30 a 949.00 886.50 702.50 560.00 437.00 327.00 524.00 655.50 792.00 946.00 8503.17
2012 1180.00 913.50 1104.00 910.00 811.50 603.50 466.50 381.50 535.50 675.00 857.00 930.53 b 9368.53
2013 908.50 916.00 952.50 873.50 565.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3650.50
Period of Record Statistics
MEAN 1007.46 915.30 981.24 864.51 731.98 548.73 423.19 362.66 490.56 702.12 830.43 942.37 8774.61
S.D. 85.47 98.33 89.00 48.23 56.08 33.53 35.46 56.35 52.47 43.45 59.27 76.53 367.97
SKEW -0.01 1.05 0.20 -0.28 -0.52 0.29 0.09 -0.07 -0.44 0.49 0.47 -0.12 -0.05
MAX 1180.00 1210.75 1167.15 961.00 823.50 613.85 486.50 460.50 566.38 797.50 979.50 1109.00 9368.53
MIN 825.00 775.00 811.50 728.00 599.00 496.50 372.50 247.50 373.00 635.50 713.50 781.95 8074.50
NO YRS 32 33 32 31 33 33 31 32 33 33 31 29 20