MONTEBELLO, CALIFORNIA

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(045790)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201102
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
1979 45.52 44.79 50.17 a 54.10 a 55.45 61.24 a 62.81 63.77 a 65.10 a 56.74 49.80 49.07 b 54.88
1980 50.90 52.07 48.39 51.07 a 52.55 b 58.00 a 62.81 63.77 a 58.69 a 56.23 48.59 a 46.84 54.16
1981 47.00 46.60 c 46.70 a 51.90 a 55.68 61.97 61.90 61.90 59.43 53.35 51.90 47.32 53.80
1982 45.48 50.89 49.68 51.37 58.26 57.53 62.84 65.81 65.20 58.13 50.23 45.45 55.07
1983 49.42 49.75 51.61 51.07 56.90 61.87 64.81 69.45 68.83 62.35 53.07 50.65 57.48
1984 48.03 a ----- z 51.52 53.53 59.13 61.83 67.32 68.32 70.10 57.68 50.17 47.97 57.78
1985 45.29 47.93 46.00 54.27 55.45 59.77 67.29 63.65 61.77 57.29 49.90 48.94 54.79
1986 54.13 49.89 52.19 54.17 56.84 61.87 62.90 64.42 59.40 57.74 52.93 47.26 56.15
1987 45.94 47.79 49.26 54.70 58.87 61.13 61.29 62.81 63.87 62.16 53.37 43.74 55.41
1988 46.61 48.48 52.68 53.47 ----- z 58.07 65.45 64.26 63.30 59.45 51.00 45.29 55.28
1989 45.84 46.25 51.23 56.97 56.10 61.20 63.97 63.00 62.80 56.77 51.47 47.00 55.22
1990 45.45 45.14 49.48 55.90 56.48 62.40 67.81 66.68 64.73 60.19 51.07 44.58 55.83
1991 47.00 50.43 46.77 52.93 55.48 ----- z ----- z 63.94 63.27 60.84 53.73 49.42 54.38
1992 47.77 51.07 53.42 57.93 60.48 59.87 66.39 68.48 63.20 ----- z 52.73 46.03 57.03
1993 47.29 49.93 52.07 a 54.30 58.65 62.27 64.93 a 64.68 62.80 59.71 53.10 47.39 56.43
1994 ----- z 46.79 53.52 53.43 56.35 62.53 63.55 67.97 63.53 58.00 47.73 47.55 56.45
1995 49.53 a 54.11 52.23 52.70 55.65 58.20 63.26 64.10 64.10 57.42 ----- z 49.48 56.43
1996 ----- z 51.66 51.55 54.57 59.19 61.57 64.35 65.39 63.07 56.74 52.97 48.65 57.24
1997 50.16 48.93 53.52 ----- z 62.84 63.90 64.45 66.58 67.77 59.48 54.63 46.63 a 58.08
1998 49.32 47.61 51.48 50.67 54.84 58.90 65.03 67.03 64.23 55.70 a 49.00 44.81 54.89
1999 46.77 i 47.91 f 47.78 d 50.53 55.28 f 58.42 d 63.18 c 62.14 c 61.14 b 59.47 a 51.88 f 46.41 d 56.13
2000 49.90 b 49.74 b 50.00 c 53.00 h 58.60 f ----- z 62.54 g 66.04 e 63.00 d 57.14 i 47.77 h 50.93 q 55.74
2001 45.00 f 46.30 e 51.59 i 51.38 i 58.40 f 62.81 d 64.80 p 63.38 o 61.56 l 58.17 m 50.13 o ----- z 54.56
2002 45.71 48.89 49.16 53.10 j ----- z ----- z 63.55 k 62.68 i 61.50 n 56.18 n 52.58 r 46.18 t 47.92
2003 50.05 j 49.00 l 50.14 j 48.72 e 56.50 m 60.29 m 67.39 m 64.61 h 62.85 j 59.11 m 47.40 y 44.43 x 48.72
2004 46.88 w 45.75 m 53.71 g 55.07 59.11 c 62.10 63.87 64.32 67.71 p 55.90 u 46.92 q 44.08 s 60.89
2005 47.12 n 47.55 q 51.08 e 53.28 l 56.80 k 59.50 l 65.15 k 64.70 k 57.56 n 57.20 k 51.38 v 47.63 l 51.08
2006 45.87 h 46.57 n 44.53 n 51.11 k 57.35 k 63.92 q 70.38 w 64.50 o 63.11 u 73.00 z ----- z 41.33 z 9999.00
2007 41.07 q 44.80 r 49.71 q 47.00 y 53.25 w 58.45 s 62.81 o 62.31 o 64.33 x 54.60 u 47.83 x ----- z 9999.00
2008 43.50 w 42.00 z 49.20 z 46.00 z 58.25 z ----- z 62.00 z ----- z ----- z ----- z ----- z ----- z 9999.00
2009 ----- z 45.85 h 47.86 i 50.90 i 57.16 l 52.31 q 62.00 q 62.38 r 64.53 m ----- z ----- z 47.32 47.32
2010 49.23 i 49.90 r 49.35 51.13 54.08 g 55.26 g 62.35 e 59.58 l 59.74 g 58.00 v ----- z ----- z 54.28
2011 34.00 u 42.90 r ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
Period of Record Statistics
MEAN 47.82 48.86 50.43 53.24 57.22 60.79 64.21 65.15 63.61 58.27 51.44 47.17 55.34
S.D. 2.35 2.37 2.16 2.22 2.33 1.86 1.79 2.10 2.80 2.21 1.93 1.76 1.01
SKEW 0.98 0.16 -0.43 0.10 0.44 -0.41 0.52 0.44 0.46 0.01 -0.25 -0.01 0.55
MAX 54.13 54.11 53.52 57.93 62.84 63.90 67.81 69.45 70.10 62.35 54.63 50.65 57.48
MIN 45.29 44.79 46.00 48.72 52.55 57.53 61.29 61.90 58.69 53.35 47.73 43.74 53.80
NO YRS 20 22 25 23 20 22 22 23 22 20 19 22 12