MOUNT SHASTA, CALIFORNIA

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(045983)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201012
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 49.10 46.97 43.20 38.32 28.80 20.42 37.80
1949 14.45 22.00 30.45 36.03 42.39 45.97 49.52 46.68 44.50 34.81 34.97 24.23 35.50
1950 19.52 27.61 28.77 33.40 40.74 45.07 53.13 49.84 45.47 38.52 34.57 32.06 37.39
1951 24.61 28.14 27.65 36.27 40.23 47.53 49.16 49.65 46.73 36.74 31.03 24.03 36.81
1952 23.45 26.07 28.32 35.03 40.48 43.07 54.00 48.77 47.57 41.16 26.93 25.77 36.72
1953 30.77 28.07 29.48 32.90 35.13 42.60 51.03 48.55 47.47 37.10 34.97 29.65 37.31
1954 27.52 30.07 28.39 37.20 40.55 43.20 49.58 46.32 40.40 35.29 32.67 25.87 36.42
1955 22.19 24.57 27.42 28.70 39.94 45.10 46.13 48.13 43.87 37.58 29.47 28.94 35.17
1956 28.97 23.83 28.13 35.13 40.42 44.93 51.84 47.00 42.90 34.42 29.30 24.29 35.93
1957 17.52 30.11 32.32 34.93 40.32 47.93 48.32 44.77 45.07 36.06 27.60 27.32 36.02
1958 28.19 33.86 26.71 33.73 42.00 46.93 52.48 53.55 45.53 40.65 31.70 32.48 38.99
1959 29.74 28.39 31.13 36.00 37.35 47.57 52.26 50.13 44.20 39.90 29.73 25.74 37.68
1960 27.16 27.24 32.65 32.17 37.10 50.63 54.61 49.19 46.23 38.81 31.43 28.42 37.97
1961 27.68 31.50 30.06 34.47 38.39 50.00 51.16 51.35 42.83 39.03 29.63 26.26 37.70
1962 22.55 28.32 28.65 36.10 38.94 45.43 50.06 49.00 45.17 38.68 32.77 29.77 37.12
1963 23.87 35.00 29.58 30.83 43.90 44.97 47.13 48.35 47.40 39.29 31.77 29.23 37.61
1964 25.42 25.52 27.29 31.57 37.10 44.70 49.52 47.58 41.40 40.10 28.83 29.68 35.72
1965 28.26 27.79 30.58 36.47 38.10 44.60 48.61 49.39 40.17 39.71 33.83 24.35 36.82
1966 24.94 26.18 30.65 36.23 41.71 46.90 47.52 50.97 45.03 36.81 34.00 29.61 37.54
1967 27.65 28.07 28.81 28.23 39.68 46.93 51.52 51.90 47.50 36.61 35.10 22.23 37.02
1968 23.65 32.66 31.74 33.03 38.23 46.80 51.23 46.68 43.37 35.74 32.17 24.06 36.61
1969 23.32 26.32 28.65 33.00 43.77 49.73 51.58 50.23 46.63 34.61 30.67 31.06 37.47
1970 31.26 30.04 31.06 30.40 40.23 49.03 51.61 48.52 42.03 36.32 34.87 23.97 37.44
1971 27.26 28.21 27.61 31.50 40.00 45.53 52.84 52.45 42.27 35.39 30.37 22.32 36.31
1972 22.97 29.86 34.23 33.00 40.61 47.87 51.94 51.39 41.43 38.00 31.03 22.10 37.04
1973 24.26 31.00 28.45 34.77 42.32 47.97 53.48 48.71 43.93 37.23 33.23 30.58 37.99
1974 24.26 26.00 31.16 32.33 39.97 48.07 50.13 50.03 46.23 37.35 30.83 27.13 36.96
1975 24.90 27.43 29.58 29.00 40.90 46.30 51.06 47.81 46.33 37.16 27.97 28.61 36.42
1976 25.61 27.07 27.29 32.27 40.74 44.03 52.16 47.77 46.33 36.03 31.47 24.16 36.25
1977 20.42 28.29 28.06 34.23 35.23 51.13 49.68 49.84 42.67 35.48 29.47 27.35 35.99
1978 30.84 29.89 32.77 32.53 36.10 42.57 49.58 48.58 40.43 35.84 24.63 19.52 35.27
1979 20.29 26.64 29.87 30.83 39.26 42.93 50.45 46.74 44.93 38.81 26.87 28.23 35.49
1980 26.77 32.17 28.68 34.07 38.74 42.00 51.35 47.32 42.40 37.39 29.97 28.52 36.61
1981 30.32 29.64 30.10 35.13 40.42 47.33 48.77 49.81 45.37 35.29 33.70 30.61 38.04
1982 23.39 28.46 28.16 29.50 39.26 46.40 47.06 48.68 42.50 36.48 27.87 26.13 35.32
1983 29.97 32.46 33.16 31.33 40.48 44.33 45.65 49.42 45.10 38.94 32.30 29.68 37.74
1984 27.03 29.28 32.03 33.17 39.94 45.10 53.00 49.10 45.08 e 35.32 27.80 21.61 36.54
1985 22.68 26.18 27.97 36.53 37.42 49.00 52.19 45.65 41.27 33.68 22.77 23.65 34.91
1986 30.94 31.64 33.03 31.93 39.26 50.50 46.71 48.16 40.00 35.81 28.23 25.32 36.79
1987 24.90 27.00 30.71 34.80 41.74 47.17 47.03 46.58 41.60 38.00 29.97 25.74 36.27
1988 23.87 24.93 26.81 35.20 35.87 45.63 52.10 48.06 41.83 39.71 31.17 24.61 35.82
1989 20.68 22.75 31.52 36.07 38.48 46.10 45.68 45.26 42.00 35.16 27.97 23.74 34.62
1990 25.74 22.18 30.71 37.63 37.87 43.00 50.52 49.23 43.53 35.77 26.83 16.71 34.98
1991 23.06 29.79 28.55 32.10 37.00 41.57 51.97 47.48 45.23 38.58 31.97 26.71 36.17
1992 25.58 30.86 32.19 37.93 44.03 49.00 48.94 48.26 43.53 38.32 29.50 25.16 37.78
1993 22.94 26.57 34.52 33.53 42.00 44.30 47.48 46.81 41.20 38.55 25.87 25.03 35.73
1994 27.65 26.75 30.10 35.33 41.74 43.20 51.90 46.23 44.37 35.26 25.53 25.94 36.17
1995 33.16 30.07 30.10 32.37 40.23 44.77 49.68 45.58 43.90 36.32 34.27 30.58 37.58
1996 28.48 31.66 30.13 33.73 38.35 44.73 51.87 48.65 40.80 36.32 31.57 29.84 37.18
1997 26.87 27.14 30.74 33.87 42.32 45.23 49.16 48.48 43.90 36.52 34.43 25.35 37.00
1998 32.55 30.54 31.19 32.20 38.00 44.73 51.10 48.26 46.70 35.90 31.23 22.39 37.07
1999 27.77 26.61 27.87 32.87 37.35 44.53 45.81 48.26 43.20 36.94 34.67 25.35 35.94
2000 29.06 31.69 30.10 36.27 41.39 47.27 47.77 48.77 44.00 36.84 26.57 26.68 37.20
2001 24.97 26.00 32.48 32.10 42.97 45.53 49.97 50.58 44.87 39.77 32.47 28.84 37.55
2002 24.35 28.36 28.13 35.13 39.16 46.17 51.03 48.10 43.40 34.94 29.50 29.03 36.44
2003 32.42 26.46 33.16 32.27 39.45 49.00 52.90 50.10 45.60 40.16 29.77 29.61 38.41
2004 26.35 29.41 33.84 35.23 39.97 47.40 51.77 48.94 42.73 35.87 29.87 27.61 37.42
2005 27.35 28.93 31.16 33.30 41.87 43.63 52.52 49.61 40.40 35.90 28.37 27.74 36.73
2006 27.61 25.14 26.97 34.30 40.55 50.03 53.06 47.03 42.63 33.39 31.50 25.74 36.50
2007 20.68 28.29 31.43 a 33.50 39.90 45.67 52.42 48.06 41.70 35.42 30.20 24.06 35.94
2008 23.74 25.93 27.10 29.33 40.71 44.70 53.77 50.52 43.50 37.71 32.43 21.71 35.93
2009 25.65 28.07 28.77 31.33 41.81 46.87 51.26 48.81 46.83 38.61 30.00 24.45 36.87
2010 32.42 30.57 31.03 31.93 36.32 47.84 k 51.33 s 48.58 s ----- z ----- z 29.77 q 31.23 32.25
2011 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2012 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 39.36 c 34.23 27.70 a 33.76
2013 23.84 28.64 33.42 42.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 12.00 z 28.63
Period of Record Statistics
MEAN 25.81 28.25 30.05 33.49 39.78 46.08 50.43 48.59 43.85 37.14 30.56 26.35 36.69
S.D. 3.75 2.68 2.05 2.26 2.09 2.30 2.25 1.74 2.09 1.82 2.80 3.23 0.92
SKEW -0.29 0.00 0.27 -0.24 -0.21 0.25 -0.46 0.26 0.00 0.21 -0.33 -0.38 -0.05
MAX 33.16 35.00 34.52 37.93 44.03 51.13 54.61 53.55 47.57 41.16 35.10 32.48 38.99
MIN 14.45 22.00 26.71 28.23 35.13 41.57 45.65 44.77 40.00 33.39 22.77 16.71 34.62
NO YRS 63 63 63 62 62 61 62 62 62 63 63 64 61