FORT YUKON, ALASKA

Monthly Total Heating Degree Days

(503175)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 199003
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
1938 2903.50 2482.00 1911.00 1245.52 a 615.00 221.00 95.00 280.00 511.50 1048.50 1907.00 2276.00 15496.02
1939 2532.00 2292.50 2066.00 1114.00 656.00 132.00 79.00 327.00 751.00 1441.00 2270.00 2076.50 15737.00
1940 2234.00 2158.50 1897.50 898.50 569.00 178.00 94.00 224.00 612.00 1259.50 2057.00 2395.27 a 14577.27
1941 2634.48 a 1953.50 1928.50 1245.00 616.50 133.00 155.00 231.50 715.50 1499.00 2109.83 a 2680.00 15901.81
1942 2194.80 a 1873.00 1987.00 1205.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 7259.80
1943 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 97.00 m 320.00 703.50 1246.50 1769.50 1531.00 k 4039.50
1944 2460.00 2102.00 1930.50 1258.00 592.00 131.50 77.00 349.00 745.00 1188.00 2011.50 2379.00 15223.50
1945 2366.33 a 1950.00 2010.00 1385.50 786.50 252.50 128.50 332.50 751.00 1279.50 2395.00 2484.00 16121.33
1946 2499.00 2058.50 2084.50 1293.10 a 588.50 85.50 101.00 328.00 812.00 1257.00 2302.00 3122.00 16531.10
1947 3036.45 a 2180.00 1666.50 1353.00 604.00 284.00 98.50 436.50 773.50 1401.50 1964.00 2281.00 16078.95
1948 2490.00 2371.50 2158.00 1363.50 719.00 202.50 197.50 460.50 861.50 1483.50 2317.50 2969.00 17594.00
1949 2660.50 2405.50 1686.00 1458.00 830.50 366.00 136.00 264.00 568.00 1275.00 1775.00 2718.50 16143.00
1950 2396.50 2743.00 1703.00 1288.50 573.00 181.00 83.00 270.00 687.50 1006.00 i 2258.50 2261.00 14445.00
1951 3058.00 2503.50 2280.50 1274.00 592.00 332.00 136.50 231.50 695.00 1528.00 1365.50 f 0.00 z 12631.00
1952 3013.00 2285.50 1966.00 1294.50 848.00 172.50 118.50 378.00 589.00 j 1319.00 1690.00 2409.50 15494.50
1953 3156.00 2048.00 2049.00 1073.00 623.62 a 131.50 132.50 344.00 725.50 1461.00 2190.00 2538.50 16472.62
1954 2806.50 1646.00 h 1843.50 1477.50 629.50 213.00 177.50 233.50 745.50 1337.00 1795.34 a 2999.50 14258.34
1955 2573.00 2514.00 2046.50 1514.50 723.00 240.00 89.00 395.00 717.00 1346.00 2518.50 2642.00 17318.50
1956 2909.00 2448.50 1976.50 1236.00 655.00 245.00 111.00 365.50 779.50 1663.50 2256.50 3154.00 17800.00
1957 2345.00 2199.50 1805.50 1179.00 713.00 167.50 122.50 134.00 639.00 1275.00 1896.50 2723.00 15199.50
1958 2495.00 2215.50 1863.00 1251.00 612.00 85.50 98.00 188.00 703.00 1736.50 2152.50 2473.00 15873.00
1959 3119.00 1947.00 2377.50 1387.00 795.50 175.50 297.50 356.50 795.00 1454.50 2073.00 2483.50 17261.50
1960 2538.50 2068.00 2132.00 1486.00 580.50 232.50 133.50 331.50 778.00 1399.50 2454.00 2194.50 16328.50
1961 2188.00 2287.00 2259.00 1562.00 589.50 164.50 151.00 357.00 642.50 1527.50 2360.00 3078.50 17166.50
1962 2364.50 1921.50 2056.85 a 1309.00 791.50 219.00 91.00 212.50 744.50 0.00 z 2036.50 2348.00 14094.85
1963 2502.00 2057.50 2081.00 1270.00 569.50 274.50 177.00 291.50 559.50 f 1368.00 2318.50 0.00 z 12909.50
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 3124.50 3124.50
1966 3124.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3124.50
1967 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 196.15 d 88.00 l 242.50 j 697.76 a 1432.56 e 1900.20 e 0.00 z 4226.67
1968 2147.50 f 1485.50 k 1248.00 i 776.00 l 265.50 s 79.50 k 55.00 k 61.00 s 396.50 p 727.00 p 1269.50 k 2015.00 g 0.00
1969 979.50 t 2235.92 d 1826.00 1067.00 547.50 113.00 89.00 0.00 z 230.00 v 0.00 z 2226.35 d 0.00 z 8104.76
1970 0.00 z 0.00 z 0.00 z 463.00 r 122.50 y 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 1384.50 j 1440.50 653.50 197.14 b 72.50 h 371.40 e 754.29 b 1488.52 a 2164.14 a 1245.00 o 7069.49
1972 1721.00 k 1207.50 n 368.00 x 881.00 k 334.00 m 84.00 q 19.00 s 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 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
1983 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
1984 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 290.00 r 1428.58 a 2365.00 2645.85 a 6439.43
1985 1981.50 2347.00 1759.00 1512.50 645.00 161.38 a 86.50 269.00 678.50 1529.00 2262.41 a 2078.00 15309.79
1986 2376.50 2026.50 2086.50 1513.50 690.78 a 95.00 99.00 352.76 b 652.00 1434.00 2408.28 a 2146.00 15880.82
1987 2320.00 2241.00 1985.00 1246.50 571.00 151.50 95.50 275.38 a 729.00 1231.00 1899.83 a 2430.40 a 15176.11
1988 2488.27 a 2083.00 1712.00 1182.86 b 556.00 56.38 a 51.67 a 191.34 b 687.50 1642.00 2228.79 a 2137.45 a 15017.26
1989 3085.50 1912.50 2051.50 1016.00 554.50 143.00 63.03 a 138.00 608.89 c 1443.00 2421.11 c 2147.30 c 15584.34
1990 2840.50 2768.00 1688.95 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 0.00 z 7297.45
Period of Record Statistics
MEAN 2615.37 2215.47 1964.82 1293.75 648.09 185.42 118.82 298.04 708.81 1400.75 2144.07 2530.89 16077.93
S.D. 322.54 234.71 180.03 158.15 86.99 70.66 48.28 80.81 73.94 147.13 224.66 338.27 876.78
SKEW 0.23 0.62 0.14 -0.34 0.94 0.52 1.82 -0.20 -0.57 0.05 -0.35 0.53 0.42
MAX 3156.00 2768.00 2377.50 1562.00 848.00 366.00 297.50 460.50 861.50 1736.50 2518.50 3154.00 17800.00
MIN 1981.50 1873.00 1666.50 898.50 547.50 56.38 51.67 134.00 511.50 1048.50 1690.00 2076.50 9999.00
NO YRS 32 31 32 32 31 32 30 31 30 31 33 29 23