MAUNA LOA SLOPE OBS, HAWAII

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(516198)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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 30.11 d 29.36 28.33 a 33.28 a 33.87 37.52 a 34.37 a 35.60 a 36.39 b 35.19 31.97 32.13 33.18
1956 32.00 c 27.93 30.61 32.63 c ----- z 35.31 a 32.80 k 35.06 35.07 35.06 33.90 33.32 33.09
1957 29.83 a 26.96 c 31.26 33.79 a 35.70 h 37.08 f 38.17 h 37.13 a 37.03 36.39 35.53 32.93 a 33.43
1958 31.16 35.71 32.81 35.53 37.06 38.87 36.52 37.52 37.13 37.26 35.70 31.61 35.57
1959 34.10 31.82 33.74 36.27 36.45 k 38.63 k 38.57 a 36.52 36.57 36.68 34.77 d 32.10 35.11
1960 32.00 30.21 29.23 31.08 d 35.29 c 36.07 37.29 39.68 39.87 36.74 34.77 32.26 34.54
1961 33.16 34.41 a 33.97 35.63 34.48 39.53 38.87 39.58 37.87 36.81 33.27 32.06 35.80
1962 32.42 29.82 29.84 34.10 33.61 37.13 38.81 38.47 n 37.63 c 37.45 35.30 34.18 i 34.61
1963 32.31 b 33.96 32.39 33.97 33.42 35.67 35.32 37.87 38.20 36.94 33.97 35.83 a 34.99
1964 33.00 a 30.10 30.84 33.17 35.45 39.27 37.19 38.61 37.60 36.03 33.40 34.52 34.93
1965 33.74 27.54 30.90 33.10 35.48 38.07 36.58 37.03 36.33 36.35 36.53 33.48 34.60
1966 32.71 33.71 34.35 33.83 37.06 42.47 40.61 39.87 38.93 38.03 35.20 32.48 36.61
1967 30.90 34.39 34.10 32.83 35.03 37.60 38.65 37.94 38.77 37.13 34.00 33.00 35.36
1968 33.87 34.14 36.06 33.77 37.74 39.20 38.87 38.71 36.93 37.39 38.13 34.32 36.59
1969 31.90 b 34.04 30.93 a 34.73 38.03 40.77 38.88 f 37.68 39.73 38.19 36.27 35.06 36.12
1970 33.29 32.61 32.71 31.27 35.06 39.87 37.00 38.32 37.77 37.19 34.43 31.29 35.07
1971 29.13 31.61 33.55 33.20 33.16 37.77 37.94 35.74 36.47 37.58 34.07 31.23 34.29
1972 30.71 30.62 34.16 33.23 33.81 38.63 38.55 38.58 38.10 37.35 37.23 35.58 35.55
1973 35.71 33.68 31.16 35.97 36.23 42.57 39.42 40.00 40.13 39.36 c 35.43 33.65 36.94
1974 33.42 31.32 32.50 c ----- z 34.68 37.10 36.81 38.68 37.70 36.68 33.13 33.00 c 35.00
1975 29.39 30.79 i 32.87 34.27 35.84 39.43 36.23 37.26 38.10 37.71 35.07 31.68 35.26
1976 29.42 30.52 30.42 31.37 33.74 39.63 38.65 38.68 36.57 36.81 ----- z 34.00 34.53
1977 36.32 35.63 a 32.90 33.93 36.85 d 38.63 39.45 39.10 39.10 37.97 36.17 34.77 36.74
1978 33.94 33.93 33.97 33.13 37.94 37.13 37.55 38.26 36.77 37.06 33.80 32.03 35.46
1979 29.64 c 30.52 g 30.77 34.61 b 37.39 38.30 38.81 39.19 39.43 38.40 a 36.77 d 36.39 36.34
1980 34.14 j 37.78 b 34.21 l 35.07 37.16 39.37 39.90 38.87 39.10 37.58 38.17 37.65 38.06
1981 36.45 33.67 a 33.55 34.37 39.81 40.53 41.26 39.58 39.00 37.58 38.03 36.23 37.50
1982 34.42 33.52 c 33.61 35.53 37.16 41.53 40.19 39.58 37.67 39.10 40.20 35.65 37.35
1983 38.61 35.86 38.17 b 35.03 38.42 39.07 42.26 40.84 39.32 b 37.74 39.22 c 35.87 38.37
1984 33.37 a 33.03 37.00 c 36.18 b 37.35 42.87 39.37 a 41.89 d 39.20 39.52 38.30 35.39 37.79
1985 36.03 35.25 33.23 35.00 37.74 40.63 41.06 40.35 40.90 40.00 38.17 37.74 38.01
1986 39.39 38.57 38.03 36.57 39.68 41.73 41.23 42.71 41.90 39.94 39.33 38.42 39.79
1987 35.32 ----- z 35.26 38.27 37.97 38.77 39.94 41.81 41.20 41.13 37.67 37.39 38.61
1988 35.39 33.03 35.23 a 35.13 38.84 41.67 39.23 41.19 41.44 e 38.16 36.62 d 33.65 37.46
1989 31.16 31.71 34.19 32.73 35.06 39.57 38.68 39.55 40.00 38.53 a 37.73 34.39 36.11
1990 35.23 33.41 a 34.77 37.96 b 39.19 42.43 38.17 a 41.10 38.90 39.03 39.83 35.74 37.98
1991 36.17 b 37.04 c 34.23 37.00 39.13 39.93 42.87 39.71 40.53 40.74 40.30 36.90 38.71
1992 36.81 35.69 35.61 39.90 40.58 43.30 40.39 40.42 40.09 h 39.50 i 37.42 k 35.64 i 39.09
1993 32.50 m 33.70 h 32.96 h 37.77 h 36.75 k 42.68 h 39.90 k 41.11 l 37.91 h 38.19 j 35.45 j 36.24 j 9999.00
1994 33.45 k 33.53 i 35.13 h 36.38 i 38.14 j 39.55 h 40.30 k 39.61 h 38.80 j 38.80 k 36.45 j 37.10 j 9999.00
1995 37.65 k 33.53 i 36.57 j 37.55 j 38.64 i 42.86 h 40.45 k 39.35 h 42.10 j 39.90 j 36.90 j 37.20 k 9999.00
1996 34.26 l 33.95 i 32.45 k 37.68 h 40.55 i 39.20 j 38.87 h 40.18 i 40.65 j 39.09 i 38.11 k 35.14 j 9999.00
1997 35.10 j 32.61 j 33.19 j 34.95 h 37.14 j 39.29 i 39.95 i 39.11 m 37.71 i 38.14 i 35.82 m 35.05 j 9999.00
1998 37.50 k 36.74 i 36.23 i 35.64 h 37.45 k 41.91 h 38.86 i 38.33 j 38.24 i 38.00 j 37.15 j 35.91 i 9999.00
1999 32.42 l 31.74 i 32.35 h 30.95 h 37.70 k 39.59 h 38.76 j 39.77 i 38.14 i 38.70 k 35.50 j 33.60 k 9999.00
2000 30.10 k 34.20 i 33.09 h 35.50 j 38.50 i 40.14 h 39.55 k 40.17 h 39.50 j 37.33 j 34.21 k 34.60 k 9999.00
2001 35.48 j 32.79 i 32.77 i 34.33 i 37.00 i 37.81 i 39.00 j 39.22 h 39.68 k 38.45 i 39.10 j 36.05 l 9999.00
2002 35.24 j 32.06 k 31.29 j 37.27 37.27 i 39.60 j 40.45 i 40.05 i 39.55 j 38.50 i 39.74 k 35.95 j 37.27
2003 36.85 k 34.68 i 36.33 j 34.50 h 35.14 i 39.19 i 39.45 i 39.33 j 39.19 i 39.68 i 38.44 l 36.10 j 9999.00
2004 35.84 l 36.26 j 33.17 h 32.82 h 36.30 k 39.67 i 39.15 k 40.23 i 37.29 i 36.80 k 35.84 k 34.62 j 9999.00
2005 34.72 m 31.37 i 35.26 h 35.38 i 37.05 j 38.27 h 38.45 k 39.48 h 39.33 i 38.00 k 36.05 j 35.10 j 9999.00
2006 33.50 k 30.68 i 34.35 h 33.95 j 37.18 i 40.52 i 39.05 k 38.52 h 40.10 j 38.45 i 36.45 j 36.95 k 9999.00
2007 37.70 k 32.67 j 34.44 o 35.12 m 37.59 i 38.90 i 38.86 j 38.14 j 36.94 l 38.22 h 34.60 j 31.85 k 9999.00
2008 30.33 m 30.80 i 33.38 j 32.62 i 35.65 k 38.24 i 34.05 i 37.24 j 37.19 i 38.59 i 34.89 l 34.71 j 9999.00
2009 31.47 l 30.79 i 30.27 i 33.91 h 37.55 k 39.00 h 38.14 i 39.00 j 40.38 i 37.82 i 33.95 k 34.05 i 9999.00
2010 36.68 l 34.00 i 33.22 h 33.68 h 38.75 k 40.05 i 41.65 k 40.55 i 39.48 i 35.48 j 35.10 j 34.05 j 9999.00
2011 31.80 k 33.21 i 33.74 h 34.71 i 34.19 j 36.77 h 38.45 k 38.43 h 38.38 i 38.05 j 33.35 j 32.24 j 9999.00
2012 32.70 k 32.15 i 31.29 j 32.57 i 34.77 i 36.44 l 39.05 l 37.48 j 37.37 k 39.65 h 35.79 k 34.44 m 9999.00
2013 32.10 j 30.63 i 33.42 s 32.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
Period of Record Statistics
MEAN 33.31 32.93 33.17 34.60 36.55 39.39 38.76 38.92 38.47 37.75 36.18 34.27 36.36
S.D. 2.61 2.80 2.30 1.95 2.05 2.06 1.88 1.77 1.63 1.38 2.21 2.03 1.58
SKEW 0.28 -0.24 0.12 0.51 0.04 0.07 -0.05 -0.11 0.19 0.52 0.19 0.28 0.15
MAX 39.39 38.57 38.17 39.90 40.58 43.30 42.87 42.71 41.90 41.13 40.30 38.42 39.79
MIN 29.13 26.96 28.33 31.08 33.16 35.31 34.37 35.06 35.07 35.06 31.97 31.23 33.18
NO YRS 37 35 37 38 35 36 35 37 37 37 36 36 26