TWIN LAKES RSVR, COLORADO

Monthly Total Growing Degree Days

(058501)

Base Temperature = 50 F

File last updated on Apr 4, 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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1950 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 0.00 z 0.00
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1953 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1954 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 1.50 44.00 257.50 134.00 34.80 e 5.00 0.00 0.00 e 476.80
1968 0.00 b 0.00 0.00 0.00 3.50 69.50 194.00 121.50 2.50 0.00 0.00 0.00 f 391.00
1969 0.00 0.00 0.00 k 0.00 9.50 29.00 241.50 252.50 29.50 0.00 0.00 0.00 562.00
1970 0.00 n 0.00 l 0.00 0.00 0.00 75.50 224.50 223.50 16.50 0.00 0.00 a 0.00 540.00
1971 0.00 0.00 0.00 0.00 0.00 50.00 148.50 169.00 26.00 2.50 k 0.00 0.00 393.50
1972 0.00 0.00 k 0.00 0.00 a 0.00 32.50 138.00 112.50 9.00 f 2.21 c 0.00 0.00 285.21
1973 0.00 0.00 0.00 0.00 0.00 42.50 104.50 84.73 a 3.00 0.00 0.00 0.00 g 234.73
1974 0.00 0.00 0.00 c 0.00 1.00 64.50 157.00 55.00 9.50 0.00 0.00 0.00 a 287.00
1975 0.00 f 0.00 j 0.00 c 0.00 0.00 b 46.50 m 176.50 82.00 23.00 0.00 0.00 0.00 281.50
1976 0.00 0.00 0.00 z 0.00 0.00 24.50 167.00 66.50 17.50 0.00 0.00 0.00 275.50
1977 0.00 0.00 0.00 0.00 0.50 95.00 196.00 115.50 26.00 0.00 0.00 0.00 433.00
1978 0.00 0.00 0.00 h 0.00 j 3.00 i 80.50 h 169.50 k 125.00 h 76.50 0.00 n 0.00 j 0.00 k 76.50
1979 0.00 i 0.00 i 0.00 k 0.00 i 3.50 f 83.50 211.83 d 114.50 h 44.00 m 5.00 i 0.00 l 0.00 l 295.33
1980 0.00 k 0.00 k 0.00 l 0.00 i 1.50 j 95.50 i 188.00 m 163.50 j 45.50 i 7.50 j 0.00 h 0.00 k 0.00
1981 0.00 k 0.00 k 0.00 i 0.00 f 4.50 h 190.96 d 191.50 i 138.50 f 47.00 0.00 j 0.00 k 0.00 j 237.96
1982 0.00 k 0.00 j 0.00 i 0.00 a 0.00 a 53.00 200.50 217.00 54.00 0.00 k 0.00 k 0.00 k 524.50
1983 0.00 j 0.00 i 0.00 0.00 a 1.00 58.00 235.00 259.50 92.50 0.00 k 0.00 k 0.00 m 646.00
1984 0.00 j 0.00 k 0.00 i 0.00 i 8.04 d 68.50 227.00 165.33 d 28.50 k 0.00 j 0.00 l 0.00 m 468.87
1985 0.00 i 0.00 i 0.00 j 0.00 h 10.00 135.50 175.50 h 178.00 i 25.50 k 0.00 i 0.00 l 0.00 l 145.50
1986 0.00 l 0.00 i 0.00 j 0.00 3.00 139.50 205.00 163.00 j 13.00 j 0.00 i 0.00 l 0.00 j 347.50
1987 0.00 0.00 j 0.00 j 0.00 3.00 115.00 171.50 j 126.00 k 26.50 j 0.00 j 0.00 k 0.00 j 118.00
1988 0.00 m 0.00 j 0.00 a 0.00 j 11.00 152.00 251.00 243.00 27.50 k 0.00 k 0.00 m 0.00 j 657.00
1989 0.00 k 0.00 i 0.00 a 0.00 j 33.00 76.00 182.50 k 181.00 46.50 j 3.00 l 0.00 j 0.00 l 290.00
1990 0.00 j 0.00 j 0.00 i 0.00 i 6.00 172.50 171.50 j 186.52 a 53.00 l 0.00 i 0.00 j 0.00 p 365.02
1991 0.00 j 0.00 i 0.00 j 0.00 b 2.00 76.50 122.50 i 117.00 i 22.00 j 1.00 i 0.00 l 0.00 k 78.50
1992 0.00 j 0.00 k 0.00 j 0.00 j 3.00 47.50 127.50 95.00 k 25.00 1.00 0.00 0.00 204.00
1993 0.00 0.00 0.00 0.00 1.00 83.50 211.00 189.50 37.50 5.00 0.00 0.00 527.50
1994 0.00 0.00 0.00 0.00 17.00 198.50 267.00 251.00 49.50 0.00 0.00 0.00 783.00
1995 0.00 0.00 0.00 0.00 0.00 48.50 168.50 285.50 33.50 p 0.00 o 0.00 p 0.00 502.50
1996 0.00 i 0.00 l 0.00 n 0.00 l 18.50 115.00 305.50 153.00 j 43.00 10.50 1.00 0.00 493.50
1997 0.00 0.00 0.00 0.00 2.00 110.50 245.00 220.00 113.50 11.00 0.00 0.00 702.00
1998 0.00 0.00 0.00 0.00 5.00 72.50 314.50 237.50 145.00 1.00 0.00 0.00 775.50
1999 0.00 i 0.00 0.00 0.00 3.10 a 67.50 291.06 d 209.25 a 44.00 0.00 0.00 0.00 614.91
2000 0.00 0.00 0.00 0.00 42.50 142.24 a 305.00 300.50 93.00 9.00 0.00 0.00 c 892.24
2001 0.00 a 0.00 a 0.00 0.00 15.00 169.14 a 250.50 198.50 42.41 a 0.00 0.00 0.00 675.55
2002 0.00 0.00 0.00 0.00 14.50 194.50 404.50 304.00 100.00 0.00 0.00 0.00 1017.50
2003 0.00 0.00 0.00 a 0.00 69.50 66.00 365.00 274.00 39.50 11.00 0.00 0.00 825.00
2004 0.00 0.00 0.00 0.00 7.50 86.50 101.50 p 135.00 30.00 g 0.00 0.00 0.00 229.00
2005 0.00 0.00 0.00 0.00 26.50 105.00 379.00 204.50 108.00 7.00 0.00 0.00 830.00
2006 0.00 0.00 0.00 0.00 19.50 154.00 309.50 191.00 0.00 z 4.00 0.00 n 0.00 a 678.00
2007 0.00 0.00 0.00 0.00 2.50 139.50 329.00 271.50 65.00 1.00 0.00 0.00 a 808.50
2008 0.00 b 0.00 0.00 0.00 8.00 115.50 290.00 236.50 35.50 4.00 0.00 0.00 689.50
2009 0.00 0.00 0.00 0.00 12.00 62.50 246.00 142.50 39.50 0.00 0.00 0.00 502.50
2010 0.00 0.00 0.00 0.00 25.00 159.50 283.50 206.00 63.00 0.00 i 0.00 0.00 b 737.00
2011 0.00 0.00 0.00 0.00 15.00 113.00 328.00 257.50 48.50 0.00 0.00 0.00 762.00
2012 0.00 0.00 0.00 1.50 10.00 220.00 280.00 172.50 41.38 a 0.50 0.00 0.00 725.88
2013 0.00 0.00 0.00 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 0.00
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.04 9.77 100.44 244.20 193.22 49.74 2.49 0.03 0.00 702.29
S.D. 0.00 0.00 0.00 0.26 13.61 51.48 71.86 67.17 34.05 3.74 0.18 0.00 184.47
SKEW 0.00 0.00 0.00 5.57 2.52 0.58 0.17 -0.34 1.00 1.32 5.20 0.00 -0.66
MAX 0.00 0.00 0.00 1.50 69.50 220.00 404.50 304.00 145.00 11.00 1.00 0.00 1017.50
MIN 0.00 0.00 0.00 0.00 0.00 24.50 104.50 55.00 2.50 0.00 0.00 0.00 287.00
NO YRS 29 28 31 34 42 43 37 36 32 29 30 30 16