SKWENTNA, ALASKA

Monthly Total Growing Degree Days

(508536)

Base Temperature = 50 F

File last updated on Jun 7, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 37.00 0.00 0.00 0.00 37.00
1950 0.00 0.00 0.00 0.00 15.50 145.00 258.00 264.00 9.50 0.00 0.00 0.00 692.00
1951 0.00 0.00 0.00 0.00 14.50 104.00 335.50 168.00 24.50 0.00 0.00 0.00 646.50
1952 0.00 0.00 0.00 0.00 0.50 124.50 226.00 124.00 0.00 0.00 0.00 0.00 475.00
1953 0.00 0.00 0.00 0.00 10.50 290.50 316.50 141.00 11.50 0.00 0.00 0.00 770.00
1954 0.00 0.00 0.00 0.00 19.00 154.50 187.00 133.00 5.50 1.00 0.00 0.00 500.00
1955 0.00 0.00 0.00 0.00 0.00 75.50 259.00 110.00 0.50 0.00 0.00 0.00 445.00
1956 0.00 0.00 0.00 0.00 0.50 108.00 228.50 154.50 31.00 0.00 0.00 0.00 522.50
1957 0.00 0.00 0.00 0.00 28.50 349.50 294.50 253.00 52.00 0.00 0.00 0.00 977.50
1958 0.00 0.00 0.00 0.00 38.00 163.00 193.00 141.50 10.50 0.00 0.00 0.00 546.00
1959 0.00 0.00 l 0.00 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 0.00 0.00 c 0.00
1971 0.00 n 0.00 0.00 0.00 0.00 e 106.67 c 209.50 237.00 4.20 e 0.00 0.00 a 0.00 b 557.37
1972 0.00 d 0.00 0.00 0.00 15.50 56.00 h 372.52 a 102.00 v 33.50 0.00 0.00 0.00 421.52
1973 0.00 0.00 0.00 0.00 6.50 159.50 225.50 46.50 p 0.00 z 0.00 z 0.00 z 0.00 z 391.50
1974 0.00 z 0.00 z 0.00 z 0.00 c 44.78 d 107.00 j 246.40 b 200.00 g 0.00 z 0.00 z 0.00 c 0.00 h 291.17
1975 0.00 i 0.00 d 0.00 g 0.00 z 1.50 l 71.54 d 261.29 c 99.50 k 5.00 f 0.00 q 0.00 z 0.00 z 332.82
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 g 0.00
1979 0.00 a 0.00 0.00 0.00 43.18 c 93.00 274.23 e 145.50 j 41.90 a 0.00 d 0.00 d 0.00 j 452.31
1980 0.00 i 0.00 c 0.00 b 0.00 c 2.14 b 105.00 225.02 b 79.50 h 7.50 0.00 b 0.00 b 0.00 b 339.66
1981 0.00 c 0.00 e 0.00 c 0.00 f 57.02 c 132.22 c 6.00 y 63.50 u 19.00 0.00 0.00 0.00 208.24
1982 0.00 0.00 0.00 0.00 0.00 105.00 187.00 149.50 3.00 0.00 0.00 0.00 a 444.50
1983 0.00 0.00 a 0.00 0.00 17.50 183.50 273.50 124.00 d 2.22 c 0.00 0.00 0.00 600.72
1984 0.00 0.00 0.00 0.00 0.00 z 163.50 g 0.00 z 0.00 z 0.00 z 0.00 z 0.00 a 0.00 b 0.00
1985 0.00 a 0.00 0.00 0.00 b 24.91 c 67.50 249.60 b 98.68 a 7.76 a 0.00 c 0.00 e 0.00 b 448.46
1986 0.00 b 0.00 a 0.00 d 0.00 c 29.34 c 128.08 d 207.59 c 51.67 a 24.50 0.00 a 0.00 e 0.00 a 441.17
1987 0.00 e 0.00 0.00 b 0.00 b 15.00 f 85.56 c 228.62 c 170.50 c 8.28 a 0.00 c 0.00 0.00 c 492.96
1988 0.00 f 0.00 b 0.00 b 0.00 c 24.91 c 233.08 d 319.19 d 180.66 b 18.10 a 0.00 b 0.00 b 0.00 a 775.93
1989 0.00 e 0.00 0.00 a 0.00 a 5.68 a 162.32 b 310.50 218.50 34.04 d 0.00 a 0.00 a 0.00 a 731.04
1990 0.00 c 0.00 d 0.00 z 0.00 c 47.50 h 252.69 d 303.44 e 178.50 f 3.00 f 0.00 i 0.00 h 0.00 p 556.13
1991 0.00 j 0.00 h 0.00 v 0.00 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
1992 0.00 g 0.00 j 0.00 q 0.00 y 0.00 e 77.00 n 239.06 e 136.50 0.00 0.00 z 0.00 z 0.00 z 375.56
1993 0.00 w 0.00 z 0.00 n 0.00 m 109.50 h 224.48 a 306.50 g 182.00 f 31.11 c 0.00 d 0.00 b 0.00 f 255.59
1994 0.00 f 0.00 b 0.00 f 0.00 b 20.00 g 225.00 d 203.50 l 202.00 g 20.77 d 0.00 a 0.00 d 0.00 e 245.77
1995 0.00 e 0.00 c 0.00 0.00 a 9.50 200.50 307.00 236.12 a 60.00 f 0.00 e 0.00 e 0.00 g 753.12
1996 0.00 b 0.00 e 0.00 e 0.00 b 53.00 215.50 287.50 166.00 20.69 a 0.00 a 0.00 a 0.00 c 742.69
1997 0.00 g 0.00 j 0.00 a 0.00 c 34.32 c 264.00 368.50 235.00 28.50 0.00 f 0.00 0.00 c 930.32
1998 0.00 c 0.00 a 0.00 b 0.00 20.50 159.00 219.67 b 96.10 a 3.00 0.00 0.00 a 0.00 c 498.27
1999 0.00 b 0.00 c 0.00 b 0.00 28.70 d 234.64 b 306.38 a 184.45 a 6.43 b 0.00 b 0.00 c 0.00 c 760.61
2000 0.00 0.00 a 0.00 d 0.00 b 2.07 a 150.00 a 198.83 b 117.50 2.07 a 0.00 0.00 0.00 c 470.46
2001 0.00 0.00 0.00 0.00 17.05 a 297.00 259.07 c 260.50 39.00 0.00 a 0.00 0.00 b 872.62
2002 0.00 0.00 a 0.00 c 0.00 97.81 b 161.25 b 319.00 140.50 f 31.61 b 0.00 0.00 a 0.00 b 609.67
2003 0.00 0.00 a 0.00 0.00 b 9.00 101.50 f 301.00 160.37 e 7.24 a 1.00 0.00 0.00 a 478.61
2004 0.00 a 0.00 0.00 0.00 a 47.50 276.00 365.50 303.00 9.50 0.00 0.00 0.00 1001.50
2005 0.00 a 0.00 a 0.00 3.00 54.00 33.50 v 213.00 j 233.50 12.50 0.00 0.00 0.00 b 303.00
2006 0.00 a 0.00 0.00 0.00 0.00 u 124.00 k 287.02 b 127.62 a 17.07 a 0.50 0.00 0.00 b 432.20
2007 0.00 0.00 0.00 0.00 c 30.00 208.50 247.40 e 222.88 b 27.50 0.00 a 0.00 a 0.00 a 736.28
2008 0.00 0.00 b 0.00 0.00 4.65 a 91.03 a 194.78 a 100.50 j 20.50 0.00 0.00 0.00 a 310.97
2009 0.00 a 0.00 0.00 a 0.00 a 46.50 a 164.50 336.87 a 129.50 35.17 a 0.00 0.00 a 0.00 712.54
2010 0.00 0.00 c 0.00 0.00 z 76.50 127.50 d 180.50 161.50 f 53.50 0.00 a 0.00 a 0.00 438.00
2011 0.00 a 0.00 0.00 b 0.00 h 58.00 130.38 d 213.90 a 124.00 c 9.11 b 0.00 0.00 0.00 e 535.39
2012 0.00 a 0.00 h 0.00 b 0.00 b 21.38 b 166.11 c 141.71 c 114.18 a 0.00 0.00 a 0.00 0.00 443.39
2013 0.00 a 0.00 f 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.07 25.22 167.39 261.09 168.69 18.13 0.06 0.00 0.00 637.97
S.D. 0.00 0.00 0.00 0.47 23.08 69.39 56.26 59.39 14.74 0.23 0.00 0.00 174.37
SKEW 0.00 0.00 0.00 6.17 1.08 0.66 0.16 0.42 0.63 3.70 0.00 0.00 0.57
MAX 0.00 0.00 0.00 3.00 97.81 349.50 372.52 303.00 53.50 1.00 0.00 0.00 1001.50
MIN 0.00 0.00 0.00 0.00 0.00 67.50 141.71 51.67 0.00 0.00 0.00 0.00 441.17
NO YRS 40 42 42 41 40 40 42 33 42 42 45 41 22