TRACY PUMPING PLANT, CALIFORNIA

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(049001)

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
1955 ----- z 28.00 30.00 36.00 a 42.00 t 39.00 48.00 c ----- z ----- z 41.00 a 30.00 33.00 28.00
1956 32.00 27.00 31.00 c 34.00 42.00 i 50.00 a 51.00 42.00 46.00 39.00 27.00 22.00 22.00
1957 25.00 25.00 37.00 34.00 g 40.00 c 43.00 54.00 45.00 53.00 40.00 j 31.00 28.00 25.00
1958 28.00 b 37.00 32.00 36.00 44.00 50.00 55.00 a 57.00 47.00 45.00 26.00 30.00 26.00
1959 23.00 33.00 36.00 43.00 45.00 42.00 54.00 51.00 46.00 46.00 32.00 24.00 23.00
1960 23.00 30.00 37.00 38.00 44.00 54.00 51.00 50.00 47.00 41.00 33.00 22.00 22.00
1961 18.00 34.00 33.00 31.00 42.00 o 46.00 e 54.00 51.00 47.00 38.00 30.00 27.00 18.00
1962 20.00 25.00 32.00 40.00 43.00 p 48.00 e 46.00 c 53.00 50.00 41.00 31.00 b 22.00 20.00
1963 18.00 37.00 36.00 37.00 41.00 g 47.00 47.00 48.00 52.00 b 44.00 33.00 24.00 18.00
1964 26.00 30.00 31.00 b 35.00 e 36.00 b 43.00 a 48.00 c 53.00 50.00 45.00 26.00 26.00 26.00
1965 27.00 30.00 36.00 35.00 42.00 49.00 52.00 57.00 42.00 a 43.00 33.00 22.00 22.00
1966 23.00 25.00 25.00 a 42.00 43.00 47.00 44.00 54.00 48.00 39.00 32.00 27.00 23.00
1967 27.00 31.00 33.00 31.00 43.00 43.00 54.00 55.00 52.00 43.00 28.00 24.00 24.00
1968 23.00 34.00 36.00 40.00 34.00 a 45.00 46.00 b 50.00 a 40.00 a 43.00 32.00 24.00 23.00
1969 27.00 a 30.00 34.00 35.00 37.00 a 50.00 d 55.00 55.00 50.00 40.00 25.00 28.00 25.00
1970 26.00 34.00 34.00 37.00 a 46.00 a 53.00 55.00 53.00 50.00 36.00 36.00 29.00 26.00
1971 25.00 29.00 25.00 38.00 44.00 48.00 52.00 56.00 a 49.00 30.00 32.00 25.00 25.00
1972 25.00 27.00 36.00 39.00 47.00 49.00 55.00 a 53.00 45.00 39.00 29.00 21.00 21.00
1973 21.00 34.00 36.00 40.00 47.00 48.00 51.00 53.00 b 52.00 42.00 33.00 35.00 21.00
1974 27.00 31.00 30.00 38.00 41.00 b 47.00 b 47.00 55.00 50.00 46.00 32.00 25.00 25.00
1975 25.00 30.00 35.00 36.00 41.00 42.00 52.00 56.00 e 48.00 35.00 29.00 25.00 a 25.00
1976 23.00 31.00 31.00 a 36.00 48.00 49.00 52.00 55.00 50.00 42.00 29.00 27.00 23.00
1977 28.00 33.00 b 33.00 43.00 42.00 49.00 50.00 52.00 50.00 48.00 a 36.00 32.00 a 28.00
1978 33.00 37.00 40.00 39.00 48.00 52.00 54.00 55.00 48.00 40.00 28.00 18.00 18.00
1979 21.00 27.00 41.00 42.00 45.00 48.00 54.00 52.00 50.00 43.00 b 28.00 26.00 21.00
1980 31.00 32.00 38.00 39.00 a 45.00 49.00 54.00 53.00 a 52.00 b 41.00 30.00 26.00 26.00
1981 34.00 33.00 38.00 a 39.00 46.00 53.00 c 51.00 56.00 53.00 42.00 37.00 33.00 33.00
1982 27.00 30.00 35.00 35.00 47.00 47.00 54.00 53.00 50.00 43.00 33.00 28.00 27.00
1983 29.00 34.00 36.00 39.00 43.00 53.00 52.00 54.00 56.00 47.00 34.00 34.00 29.00
1984 29.00 31.00 41.00 38.00 49.00 51.00 49.00 52.00 57.00 43.00 34.00 25.00 25.00
1985 27.00 27.00 32.00 44.00 46.00 49.00 55.00 53.00 50.00 42.00 ----- z 25.00 25.00
1986 34.00 30.00 40.00 38.00 41.00 53.00 53.00 53.00 49.00 42.00 31.00 25.00 25.00
1987 22.00 29.00 30.00 41.00 40.00 b 45.00 a 52.00 51.00 46.00 45.00 l 35.00 k 29.00 n 22.00
1988 30.00 n 26.00 k 34.00 38.00 i 38.00 k 37.00 i 54.00 l 56.00 i 48.00 k 46.00 k 33.00 l 25.00 i 25.00
1989 27.00 l 23.00 j 33.00 42.00 47.00 b 49.00 54.00 k 49.00 51.00 m 37.00 j 32.00 24.00 m 23.00
1990 27.00 m 25.00 i 34.00 43.00 i 47.00 k 51.00 j 54.00 53.00 55.00 43.00 29.00 i 17.00 i 17.00
1991 24.00 j 30.00 i 35.00 39.00 41.00 48.00 k 50.00 53.00 i 48.00 j 37.00 34.00 m 26.00 n 24.00
1992 24.00 n 34.00 40.00 39.00 o 52.00 53.00 55.00 55.00 i 53.00 a 47.00 31.00 m 29.00 k 24.00
1993 22.00 32.00 40.00 42.00 37.00 l 47.00 o 55.00 55.00 50.00 j 44.00 24.00 25.00 22.00
1994 26.00 28.00 33.00 43.00 47.00 50.00 54.00 52.00 52.00 43.00 31.00 30.00 26.00
1995 30.00 35.00 37.00 39.00 46.00 49.00 47.00 48.00 45.00 46.00 41.00 35.00 30.00
1996 36.00 34.00 38.00 42.00 50.00 53.00 58.00 55.00 44.00 38.00 38.00 31.00 31.00
1997 24.00 34.00 33.00 45.00 50.00 46.00 52.00 51.00 k 56.00 44.00 42.00 29.00 24.00
1998 34.00 37.00 37.00 37.00 45.00 54.00 56.00 52.00 52.00 43.00 39.00 20.00 20.00
1999 28.00 33.00 39.00 a 39.00 47.00 49.00 53.00 56.00 55.00 45.00 38.00 31.00 28.00
2000 32.00 38.00 39.00 40.00 46.00 52.00 55.00 57.00 52.00 46.00 32.00 29.00 29.00
2001 26.00 31.00 35.00 40.00 52.00 54.00 55.00 56.00 54.00 49.00 37.00 33.00 26.00
2002 27.00 32.00 33.00 43.00 44.00 52.00 57.00 54.00 53.00 44.00 36.00 34.00 27.00
2003 36.00 32.00 39.00 39.00 45.00 52.00 55.00 56.00 56.00 49.00 36.00 31.00 31.00
2004 30.00 35.00 43.00 45.00 50.00 52.00 58.00 59.00 52.00 44.00 31.00 26.00 26.00
2005 35.00 37.00 42.00 41.00 50.00 50.00 58.00 56.00 53.00 47.00 36.00 29.00 29.00
2006 34.00 32.00 33.00 41.00 50.00 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z 32.00
Period of Record Statistics
MEAN 27.11 31.65 35.13 38.98 44.91 48.85 52.51 53.13 50.15 42.51 32.29 27.22 25.42
S.D. 4.70 3.39 3.88 3.24 4.03 3.61 3.33 3.21 3.77 3.74 4.11 4.20 3.50
SKEW 0.16 -0.13 -0.31 -0.34 -0.53 -0.64 -0.64 -1.20 -0.45 -0.83 0.24 0.09 0.07
MAX 36.00 38.00 43.00 45.00 52.00 54.00 58.00 59.00 57.00 49.00 42.00 35.00 33.00
MIN 18.00 25.00 25.00 31.00 34.00 39.00 44.00 42.00 40.00 30.00 24.00 18.00 18.00
NO YRS 46 48 52 48 44 47 49 46 46 47 45 45 33