EMMONAK, ALASKA

Monthly Total Heating Degree Days

(502825)

Base Temperature = 65 F

File last updated on Jun 7, 2013
*** Note *** Provisional Data *** After Year/Month 199401
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
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 622.76 a 1158.00 1691.50 1725.00 5197.26
1978 1434.50 1479.33 a 1662.50 1112.50 0.00 z 190.50 v 369.62 e 382.00 628.00 1190.00 1295.17 a 1558.50 11112.12
1979 1490.50 2001.42 d 1052.50 g 1248.21 b 648.50 g 0.00 z 331.00 357.57 b 610.00 952.00 1207.76 a 2152.00 10350.46
1980 2097.50 1648.17 b 1407.73 c 1271.50 436.00 q 0.00 z 0.00 z 0.00 z 440.00 i 1008.00 1308.00 2030.00 10770.90
1981 1497.00 1590.50 1334.00 1169.50 705.50 436.67 c 426.85 e 441.15 e 192.50 r 773.50 h 1489.29 b 1295.50 j 9090.45
1982 1798.57 d 1535.33 a 1596.50 a 1506.72 a 968.50 402.00 349.50 360.50 594.00 1193.50 a 0.00 z 1711.72 a 12016.85
1983 2014.00 1571.50 1527.50 1215.00 700.50 441.00 328.50 519.50 714.50 1163.50 1296.00 1323.70 a 12815.20
1984 1884.00 2269.00 1483.35 a 1507.00 997.00 404.50 381.00 529.00 573.50 1046.00 1426.00 1509.00 14009.35
1985 1306.00 1702.50 1739.10 a 1872.60 e 1012.15 a 609.50 283.00 401.00 666.50 1155.50 1280.17 a 1219.33 a 13247.35
1986 1891.50 1403.50 1729.36 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1423.23 c 6447.59
1987 1300.00 h 1547.58 d 1512.11 d 1092.50 g 712.00 g 422.00 g 0.00 z 181.50 j 681.60 e 522.50 n 1228.00 g 1536.00 g 3741.29
1988 1576.23 e 1605.27 e 1867.75 e 904.50 g 167.50 w 0.00 z 0.00 z 377.00 591.00 1151.28 b 1660.00 1744.00 10572.53
1989 2339.50 1137.23 b 1453.56 d 475.00 r 967.00 453.10 a 423.00 395.00 354.50 i 893.50 f 0.00 z 1642.50 8810.89
1990 1945.50 2223.93 a 1593.50 798.50 h 756.50 448.45 a 158.00 i 239.65 e 595.80 e 1018.00 993.50 g 1372.50 g 8821.33
1991 1849.00 902.50 k 1628.50 1221.00 800.00 347.00 178.50 g 0.00 z 69.00 z 903.13 a 1004.00 h 1946.44 e 8695.08
1992 888.00 r 1823.00 1763.68 c 840.00 k 1106.38 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4693.06
1993 0.00 z 1378.22 a 0.00 z 676.00 l 774.45 c 165.50 q 240.77 a 418.50 e 534.00 h 985.69 d 1012.00 f 684.00 s 3797.62
1994 1139.50 n 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 1778.75 1661.10 1592.80 1347.12 878.80 442.78 348.14 401.90 627.77 1077.05 1405.99 1665.45 13357.30
S.D. 299.14 308.09 150.48 240.47 146.53 75.85 61.03 79.29 45.61 102.45 174.10 281.45 604.58
SKEW 0.09 0.64 0.08 1.23 0.11 1.27 -0.34 -0.15 0.72 -0.31 0.67 0.16 0.33
MAX 2339.50 2269.00 1867.75 1872.60 1106.38 609.50 426.85 529.00 714.50 1193.50 1691.50 2152.00 14009.35
MIN 1306.00 1137.23 1334.00 1112.50 700.50 347.00 240.77 239.65 573.50 903.13 1207.76 1219.33 9999.00
NO YRS 13 15 14 9 10 8 9 11 10 12 9 12 3