FORT ROSS, CALIFORNIA

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(043191)

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
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
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1949 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1950 ----- z ----- z 35.00 38.00 38.00 41.00 46.00 44.00 40.00 40.00 40.00 39.00 e 35.00
1951 34.00 33.00 31.00 37.00 42.00 41.00 44.00 46.00 a 44.00 42.00 39.00 32.00 31.00
1952 34.00 35.00 33.00 36.00 36.00 42.00 41.00 44.00 44.00 42.00 37.00 39.00 33.00
1953 35.00 34.00 32.00 32.00 39.00 42.00 42.00 43.00 45.00 40.00 37.00 37.00 32.00
1954 31.00 36.00 35.00 38.00 38.00 40.00 41.00 42.00 42.00 40.00 37.00 31.00 31.00
1955 34.00 33.00 34.00 34.00 37.00 40.00 42.00 41.00 38.00 36.00 33.00 34.00 33.00
1956 34.00 30.00 31.00 e 36.00 40.00 42.00 40.00 43.00 43.00 38.00 36.00 30.00 30.00
1957 30.00 32.00 36.00 38.00 43.00 43.00 42.00 43.00 44.00 45.00 40.00 36.00 30.00
1958 38.00 38.00 34.00 38.00 40.00 46.00 45.00 46.00 43.00 44.00 30.00 40.00 30.00
1959 30.00 35.00 36.00 39.00 39.00 42.00 43.00 45.00 45.00 44.00 40.00 34.00 30.00
1960 31.00 37.00 37.00 37.00 39.00 44.00 42.00 43.00 41.00 40.00 39.00 36.00 31.00
1961 36.00 37.00 38.00 36.00 40.00 43.00 43.00 43.00 43.00 40.00 36.00 36.00 36.00
1962 29.00 28.00 37.00 38.00 39.00 39.00 42.00 42.00 43.00 43.00 38.00 36.00 28.00
1963 30.00 41.00 34.00 37.00 41.00 43.00 41.00 42.00 46.00 40.00 39.00 38.00 30.00
1964 35.00 35.00 33.00 35.00 35.00 40.00 40.00 44.00 42.00 41.00 35.00 34.00 33.00
1965 33.00 36.00 38.00 36.00 39.00 42.00 43.00 45.00 41.00 41.00 41.00 35.00 33.00
1966 33.00 35.00 31.00 37.00 39.00 39.00 43.00 44.00 45.00 41.00 40.00 34.00 31.00
1967 35.00 35.00 34.00 37.00 39.00 42.00 43.00 45.00 46.00 42.00 39.00 29.00 29.00
1968 33.00 40.00 38.00 36.00 36.00 42.00 44.00 45.00 42.00 41.00 38.00 28.00 28.00
1969 32.00 34.00 36.00 37.00 41.00 43.00 44.00 42.00 43.00 43.00 38.00 39.00 32.00
1970 35.00 38.00 37.00 29.00 40.00 41.00 42.00 a 43.00 38.00 41.00 41.00 35.00 29.00
1971 35.00 31.00 33.00 34.00 39.00 39.00 41.00 43.00 44.00 36.00 36.00 30.00 30.00
1972 31.00 31.00 32.00 37.00 a 41.00 42.00 43.00 45.00 45.00 40.00 33.00 b 20.00 a 20.00
1973 30.00 39.00 a 32.00 36.00 c 35.00 a 44.00 a ----- z 42.00 d 43.00 a 36.00 c 39.00 a 36.00 30.00
1974 30.00 33.00 31.00 a 39.00 d 39.00 41.00 i 45.00 f 47.00 46.00 a 42.00 a 39.00 c 30.00 30.00
1975 30.00 33.00 a 39.00 34.00 38.00 a 42.00 42.00 45.00 42.00 39.00 a 35.00 b 32.00 c 30.00
1976 28.00 c 33.00 c 31.00 a 34.00 b 33.00 36.00 c 44.00 46.00 41.00 41.00 d 36.00 a 37.00 a 28.00
1977 36.00 a 39.00 26.00 37.00 c 36.00 42.00 43.00 45.00 44.00 41.00 33.00 35.00 a 26.00
1978 39.00 38.00 41.00 39.00 40.00 42.00 a 45.00 40.00 48.00 k 40.00 d 35.00 a 30.00 30.00
1979 32.00 b 31.00 37.00 38.00 42.00 41.00 a 42.00 44.00 44.00 44.00 38.00 36.00 31.00
1980 29.00 40.00 34.00 34.00 40.00 41.00 42.00 b 30.00 41.00 b 35.00 38.00 35.00 29.00
1981 38.00 39.00 38.00 37.00 b 35.00 41.00 a 41.00 41.00 42.00 40.00 39.00 39.00 35.00
1982 34.00 35.00 37.00 32.00 30.00 41.00 44.00 44.00 46.00 42.00 41.00 35.00 30.00
1983 36.00 40.00 40.00 34.00 43.00 44.00 44.00 47.00 44.00 41.00 38.00 37.00 34.00
1984 36.00 37.00 a 39.00 36.00 39.00 41.00 44.00 44.00 41.00 38.00 36.00 32.00 32.00
1985 32.00 31.00 31.00 35.00 31.00 38.00 40.00 40.00 39.00 35.00 27.00 26.00 26.00
1986 31.00 30.00 31.00 30.00 31.00 38.00 36.00 37.00 35.00 35.00 35.00 29.00 29.00
1987 22.00 25.00 ----- z 29.00 32.00 ----- z ----- z ----- z ----- z ----- z 28.00 20.00 20.00
1988 23.00 ----- z ----- z 37.00 ----- z ----- z 40.00 j 42.00 41.00 41.00 34.00 31.00 23.00
1989 ----- z 25.00 33.00 30.00 39.00 41.00 42.00 43.00 43.00 39.00 38.00 d 32.00 25.00
1990 34.00 28.00 34.00 38.00 33.00 39.00 40.00 40.00 40.00 39.00 a 35.00 21.00 21.00
1991 28.00 a 34.00 34.00 32.00 33.00 37.00 35.00 40.00 41.00 35.00 35.00 35.00 28.00
1992 35.00 37.00 39.00 32.00 39.00 41.00 44.00 37.00 40.00 41.00 34.00 32.00 32.00
1993 30.00 29.00 a 38.00 37.00 38.00 41.00 39.00 40.00 j 36.00 38.00 32.00 30.00 29.00
1994 34.00 32.00 34.00 26.00 b 34.00 38.00 39.00 40.00 40.00 36.00 33.00 32.00 26.00
1995 34.00 34.00 37.00 36.00 43.00 44.00 46.00 j 44.00 45.00 43.00 40.00 41.00 34.00
1996 37.00 33.00 36.00 39.00 38.00 42.00 42.00 41.00 44.00 40.00 i 39.00 37.00 33.00
1997 32.00 36.00 35.00 38.00 39.00 44.00 46.00 45.00 48.00 43.00 43.00 35.00 32.00
1998 39.00 38.00 36.00 37.00 41.00 46.00 42.00 ----- z 45.00 i 41.00 j 38.00 i 27.00 27.00
1999 ----- z ----- z 36.00 b 30.00 j 39.00 f 38.00 h ----- z ----- z 46.00 x ----- z 38.00 l 34.00 d 30.00
2000 37.00 f 36.00 j ----- z 39.00 d ----- z ----- z 37.00 l ----- z 42.00 k 42.00 g 36.00 f 37.00 h 36.00
2001 33.00 c 33.00 d 35.00 d 34.00 h 41.00 f 41.00 c 41.00 i 45.00 d 44.00 i 40.00 k 39.00 h 36.00 j 33.00
2002 30.00 k 36.00 m 35.00 33.00 38.00 i 34.00 43.00 k 42.00 34.00 h 30.00 j 39.00 a 37.00 p 30.00
2003 40.00 e 25.00 g 31.00 h 37.00 m 40.00 i 40.00 l 40.00 l 46.00 m 42.00 m 41.00 l ----- z 36.00 r 25.00
2004 34.00 f 38.00 p 40.00 g 39.00 h 39.00 42.00 j 45.00 e 38.00 k 41.00 k 33.00 36.00 e 36.00 p 33.00
2005 36.00 e 38.00 f 39.00 34.00 40.00 e 42.00 l 44.00 l 47.00 p 41.00 f 42.00 k 36.00 p 26.00 o 26.00
2006 28.00 n 32.00 k 30.00 h 34.00 38.00 c ----- z ----- z ----- z ----- z ----- z ----- z ----- z 28.00
Period of Record Statistics
MEAN 32.92 34.29 34.96 35.43 38.00 41.19 42.18 42.79 42.46 39.94 36.74 33.16 30.03
S.D. 3.64 3.83 2.98 2.94 3.21 2.34 2.24 2.94 2.68 2.82 3.31 4.77 3.31
SKEW -0.64 -0.43 -0.35 -1.14 -0.78 -0.61 -1.00 -1.91 -0.61 -0.57 -0.87 -1.01 -1.14
MAX 40.00 41.00 41.00 39.00 43.00 46.00 46.00 47.00 48.00 45.00 43.00 41.00 36.00
MIN 22.00 25.00 26.00 26.00 30.00 34.00 35.00 30.00 35.00 33.00 27.00 20.00 20.00
NO YRS 50 48 51 53 51 48 45 48 46 47 50 50 36