OROVILLE, CALIFORNIA

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(046521)

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
1953 ----- z ----- z ----- z 41.00 u 41.00 49.00 54.00 51.00 48.00 38.00 32.00 29.00 29.00
1954 28.00 31.00 30.00 39.00 41.00 45.00 54.00 52.00 45.00 37.00 27.00 27.00 27.00
1955 25.00 23.00 30.00 29.00 42.00 b 46.00 52.00 49.00 41.00 35.00 31.00 29.00 c 23.00
1956 26.00 27.00 j 26.00 35.00 45.00 51.00 52.00 53.00 49.00 35.00 29.00 25.00 25.00
1957 25.00 22.00 31.00 36.00 41.00 47.00 54.00 i 48.00 c 47.00 g 42.00 31.00 27.00 22.00
1958 29.00 33.00 30.00 34.00 44.00 50.00 55.00 60.00 42.00 41.00 27.00 34.00 a 27.00
1959 24.00 33.00 35.00 38.00 40.00 48.00 54.00 50.00 43.00 43.00 d 32.00 26.00 24.00
1960 22.00 30.00 34.00 39.00 39.00 51.00 51.00 53.00 52.00 39.00 34.00 b 29.00 22.00
1961 27.00 a 31.00 30.00 37.00 43.00 52.00 54.00 55.00 48.00 38.00 28.00 24.00 24.00
1962 23.00 24.00 33.00 42.00 42.00 49.00 56.00 54.00 d 53.00 44.00 32.00 26.00 23.00
1963 24.00 a 39.00 33.00 35.00 45.00 52.00 52.00 53.00 54.00 40.00 31.00 25.00 24.00
1964 30.00 30.00 29.00 35.00 38.00 49.00 ----- z ----- z 50.00 45.00 29.00 30.00 29.00
1965 28.00 30.00 37.00 38.00 40.00 50.00 56.00 59.00 46.00 39.00 31.00 a 24.00 24.00
1966 29.00 30.00 32.00 44.00 51.00 48.00 55.00 51.00 53.00 42.00 a 31.00 27.00 27.00
1967 27.00 34.00 34.00 36.00 43.00 48.00 57.00 61.00 55.00 45.00 35.00 26.00 26.00
1968 25.00 34.00 35.00 38.00 43.00 54.00 56.00 53.00 46.00 41.00 35.00 26.00 25.00
1969 26.00 30.00 32.00 38.00 47.00 56.00 60.00 57.00 51.00 43.00 32.00 32.00 26.00
1970 26.00 34.00 33.00 38.00 44.00 52.00 57.00 54.00 47.00 35.00 37.00 29.00 26.00
1971 28.00 28.00 28.00 36.00 42.00 47.00 58.00 55.00 44.00 31.00 34.00 28.00 28.00
1972 26.00 33.00 32.00 33.00 43.00 49.00 57.00 56.00 45.00 37.00 33.00 ----- z 26.00
1973 25.00 34.00 33.00 36.00 45.00 45.00 56.00 52.00 51.00 43.00 32.00 35.00 25.00
1974 28.00 31.00 35.00 37.00 a 40.00 55.00 54.00 56.00 54.00 44.00 35.00 a 27.00 27.00
1975 24.00 29.00 33.00 34.00 36.00 51.00 52.00 56.00 ----- z ----- z ----- z ----- z 24.00
1976 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1977 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1978 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1979 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1980 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1981 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1982 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 34.00 30.00 a 30.00
1983 26.00 b 38.00 40.00 38.00 38.00 52.00 b 54.00 48.00 51.00 44.00 35.00 33.00 26.00
1984 30.00 32.00 39.00 35.00 b 37.00 50.00 d 58.00 52.00 45.00 32.00 ----- z 28.00 28.00
1985 28.00 26.00 31.00 35.00 41.00 c 48.00 49.00 51.00 46.00 38.00 25.00 22.00 22.00
1986 25.00 29.00 34.00 36.00 40.00 49.00 52.00 51.00 41.00 41.00 30.00 29.00 b 25.00
1987 25.00 33.00 36.00 42.00 43.00 51.00 50.00 48.00 40.00 46.00 ----- z 25.00 25.00
1988 25.00 ----- z ----- z 39.00 38.00 ----- z ----- z 44.00 40.00 38.00 33.00 25.00 25.00
1989 25.00 r 22.00 33.00 41.00 36.00 ----- z 51.00 49.00 44.00 33.00 32.00 27.00 22.00
1990 25.00 25.00 31.00 41.00 ----- z 43.00 53.00 47.00 41.00 41.00 28.00 12.00 12.00
1991 23.00 33.00 31.00 29.00 39.00 48.00 54.00 46.00 49.00 39.00 30.00 28.00 23.00
1992 27.00 34.00 37.00 40.00 48.00 42.00 51.00 50.00 49.00 48.00 33.00 29.00 27.00
1993 27.00 34.00 41.00 37.00 45.00 49.00 57.00 51.00 49.00 45.00 26.00 27.00 26.00
1994 31.00 29.00 34.00 36.00 46.00 49.00 53.00 50.00 46.00 36.00 26.00 24.00 24.00
1995 26.00 26.00 30.00 30.00 37.00 35.00 g 49.00 42.00 42.00 38.00 35.00 33.00 26.00
1996 31.00 32.00 33.00 40.00 44.00 ----- z 55.00 51.00 47.00 34.00 31.00 24.00 24.00
1997 23.00 27.00 32.00 34.00 44.00 45.00 56.00 46.00 51.00 44.00 e 45.00 32.00 a 23.00
1998 32.00 37.00 34.00 36.00 45.00 51.00 56.00 b 51.00 46.00 43.00 37.00 23.00 23.00
1999 30.00 x 30.00 j 34.00 e 35.00 g 30.00 m 41.00 d 53.00 k 52.00 f 51.00 j 41.00 c 31.00 h 31.00 i 30.00
2000 26.00 j 32.00 l 34.00 o 34.00 l 42.00 r 52.00 n 52.00 j 55.00 f 50.00 r 40.00 s 32.00 b 32.00 e 26.00
2001 29.00 a 31.00 c 38.00 a 35.00 51.00 a 48.00 e 49.00 f 48.00 d 53.00 a 44.00 k 34.00 i 35.00 g 29.00
2002 22.00 a 31.00 a 32.00 36.00 a 43.00 50.00 55.00 52.00 46.00 39.00 37.00 34.00 22.00
2003 35.00 ----- z 40.00 w 39.00 e 42.00 d 55.00 53.00 i 52.00 52.00 42.00 k 31.00 32.00 31.00
2004 32.00 34.00 38.00 38.00 48.00 51.00 g 55.00 51.00 48.00 40.00 c 32.00 30.00 30.00
2005 30.00 g 35.00 39.00 38.00 42.00 ----- z 54.00 f 55.00 48.00 44.00 35.00 31.00 e 30.00
2006 33.00 31.00 36.00 a 39.00 a 50.00 c ----- z ----- z ----- z ----- z ----- z ----- z ----- z 31.00
Period of Record Statistics
MEAN 26.90 30.78 33.44 36.84 42.55 49.10 54.21 51.70 47.40 40.02 32.02 27.79 24.85
S.D. 3.04 4.03 3.28 3.15 3.74 3.35 2.58 3.98 4.17 4.03 3.66 4.08 1.80
SKEW 0.62 -0.43 0.30 -0.40 0.36 -0.28 -0.14 0.07 -0.06 -0.31 0.75 -1.09 -0.06
MAX 35.00 39.00 41.00 44.00 51.00 56.00 60.00 61.00 55.00 48.00 45.00 35.00 28.00
MIN 22.00 22.00 26.00 29.00 36.00 41.00 49.00 42.00 40.00 31.00 25.00 12.00 22.00
NO YRS 42 41 43 44 44 39 38 43 42 42 42 43 26