DILLINGHAM AP, ALASKA

Monthly Total Heating Degree Days

(502457)

Base Temperature = 65 F

File last updated on Jun 7, 2013
*** Note *** Provisional Data *** After Year/Month 200505
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 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 1487.45 c 1487.45
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 88.00 w 465.00 b 369.02 e 605.56 c 833.00 1026.67 c 1663.67 a 4962.91
1953 1705.50 1387.00 1461.00 941.79 b 609.67 d 278.28 a 160.00 307.00 548.00 1028.00 1257.50 659.00 s 9683.73
1954 0.00 z 0.00 z 0.00 z 665.50 j 629.50 342.00 305.50 354.00 541.80 e 390.00 m 1089.50 0.00 z 3262.30
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 262.98 a 500.50 592.00 1129.00 1578.00 1892.50 5954.98
1957 1369.50 1429.50 1209.50 891.50 602.50 281.00 220.50 283.50 528.00 781.50 1027.00 1898.00 10522.00
1958 1615.00 1201.00 1180.00 904.50 731.50 466.50 373.50 391.50 582.50 1042.50 1358.00 1493.50 11340.00
1959 1577.00 1160.00 1747.00 1101.50 645.00 374.00 402.50 360.50 584.00 956.00 1145.00 1910.00 11962.50
1960 1432.00 1322.50 1486.00 1263.50 596.00 438.50 253.50 373.50 543.50 919.50 1271.50 1195.00 11095.00
1961 1380.00 1591.00 1586.50 1021.00 613.50 426.50 358.50 387.00 532.00 1112.00 1278.50 1774.00 12060.50
1962 1683.50 1148.50 1426.50 939.50 741.00 351.00 176.00 312.50 567.50 903.50 1186.00 1552.00 10987.50
1963 1286.50 1196.00 1236.00 1125.00 671.00 526.00 364.00 378.50 437.50 1058.50 1657.50 1337.00 11273.50
1964 1626.95 c 1623.46 b 1541.00 1164.50 861.50 374.00 358.50 356.50 483.00 920.00 1309.00 1873.50 12491.91
1965 1692.50 1554.50 1102.50 1023.00 905.00 569.00 333.50 375.00 440.50 1140.50 1204.50 1755.00 12095.50
1966 1471.00 1271.50 1729.00 1046.00 845.27 a 436.00 412.50 381.50 550.50 1071.50 1191.00 1635.00 12040.77
1967 1563.00 1350.00 1194.50 968.00 575.00 368.50 255.50 298.00 481.00 969.00 1113.00 1579.00 10714.50
1968 1472.00 1450.00 1124.55 b 1094.00 613.50 159.00 r 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5754.05
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 1548.50 1015.00 746.50 432.50 366.00 430.50 550.00 971.00 1253.00 1498.50 8811.50
1974 1679.00 1749.00 1326.00 961.50 624.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1749.50 8089.00
1975 1818.00 1629.00 0.00 z 0.00 z 807.50 522.50 317.00 304.50 544.50 881.50 1509.50 1646.50 9980.50
1976 1611.50 1620.00 1599.37 d 1109.46 b 775.00 c 482.50 274.50 262.00 511.00 913.50 1114.00 1384.50 11657.33
1977 979.50 957.00 1419.00 1187.00 770.00 332.00 229.50 210.00 500.00 1046.50 1572.50 1701.50 10904.50
1978 1207.50 1200.50 1290.50 911.50 663.50 519.00 370.97 a 295.50 533.50 961.00 1102.50 1231.00 10286.97
1979 1182.50 1600.00 1196.00 886.00 634.50 456.50 264.00 328.50 473.00 814.50 1070.00 1809.00 10714.50
1980 1635.00 1304.00 1232.50 880.00 713.00 525.00 316.50 395.50 504.00 922.00 1186.00 1791.00 11404.50
1981 1156.50 1262.50 953.00 854.50 549.50 415.50 348.00 359.50 561.00 970.50 1219.50 1613.00 10263.00
1982 1510.00 1400.00 1318.50 1210.50 796.50 494.50 411.50 373.50 563.00 1108.00 1174.00 1323.50 11683.50
1983 1556.50 1265.50 1105.50 923.00 647.50 387.00 314.50 372.50 608.50 1095.50 1142.00 1203.50 10621.50
1984 1531.50 1915.50 1050.50 1128.50 726.50 399.00 319.50 348.50 510.50 1025.00 1299.50 1325.00 11579.50
1985 1058.50 1503.00 1371.50 1436.50 853.02 a 523.00 328.50 416.00 531.50 1093.00 1169.50 1023.00 11307.02
1986 1483.50 1159.00 1408.00 1146.00 707.50 499.44 c 321.37 a 420.00 537.00 926.50 1171.03 a 1153.72 a 10933.06
1987 1380.50 1195.50 1200.50 1057.00 743.50 465.50 300.50 254.50 600.50 866.00 1418.00 1763.00 11245.00
1988 1345.00 1296.00 1382.50 1134.50 709.50 415.00 242.50 403.50 570.50 1081.50 1530.00 1503.00 11613.50
1989 2106.00 1107.00 1346.00 934.50 714.50 382.50 280.00 281.00 453.00 914.00 1430.00 1405.85 a 11354.35
1990 1633.00 1824.50 1268.50 870.50 676.00 428.00 316.50 327.00 323.00 o 1044.50 1430.50 1494.50 11313.50
1991 1560.50 1436.50 1319.50 953.00 672.00 439.50 274.50 383.50 477.50 896.50 1334.50 1634.00 11381.50
1992 1506.00 1693.00 1397.00 1028.00 731.50 438.50 315.00 388.00 749.50 1033.50 1264.00 1521.00 12065.00
1993 1645.00 1218.50 1149.50 781.50 550.50 382.00 241.50 334.00 563.50 871.50 1138.50 1347.50 10223.50
1994 1478.50 1419.00 1506.00 960.00 670.00 363.50 336.50 360.00 526.00 1101.00 1348.00 1603.50 11672.00
1995 1460.00 1243.00 1450.28 a 840.00 645.12 b 370.00 290.00 350.00 441.50 948.60 a 1390.50 1358.00 10787.00
1996 1562.00 1497.00 1060.50 967.50 594.50 358.00 325.50 383.50 668.00 1097.00 1180.50 1727.00 11421.00
1997 1579.00 1061.00 1361.50 862.50 537.50 0.00 z 0.00 z 281.00 445.00 1101.05 c 735.00 k 1759.54 d 8988.09
1998 0.00 z 1224.74 a 0.00 z 893.79 a 753.82 a 431.00 0.00 z 447.95 a 544.00 945.50 1136.38 a 1656.50 8033.68
1999 1742.50 1685.19 a 1526.00 1059.11 b 779.00 427.00 349.50 384.50 511.50 1074.00 1446.43 b 1993.41 c 12978.13
2000 1850.59 c 1069.38 e 1176.97 a 973.00 683.07 b 398.04 b 342.50 0.00 z 0.00 z 605.50 j 812.50 g 0.00 z 6493.54
2001 0.00 z 1062.32 c 1212.74 b 872.31 d 715.98 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3863.35
2002 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
2003 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
2004 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
2005 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
Period of Record Statistics
MEAN 1516.22 1372.75 1330.01 1007.82 693.74 423.55 312.46 354.23 537.38 989.19 1268.08 1567.45 11333.75
S.D. 217.98 229.85 185.61 133.84 88.75 68.31 63.36 56.47 62.10 96.37 160.17 233.71 655.50
SKEW -0.20 0.43 0.26 0.90 0.33 0.02 -0.16 -0.18 0.87 -0.22 0.65 -0.31 0.29
MAX 2106.00 1915.50 1747.00 1436.50 905.00 569.00 465.00 500.50 749.50 1140.50 1657.50 1993.41 12978.13
MIN 979.50 957.00 953.00 781.50 537.50 278.28 160.00 210.00 437.50 781.50 1026.67 1023.00 9999.00
NO YRS 39 41 40 41 43 39 40 41 40 40 40 41 32