MAUNA LOA SLOPE OBS, HAWAII

Monthly Average Maximum 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 47.63 d 45.14 45.70 a 52.24 a 54.87 58.83 55.52 56.26 55.97 54.13 51.17 50.68 52.34
1956 48.32 c 45.07 48.23 52.04 c ----- z 57.50 b 53.60 k 54.94 56.83 54.26 53.66 a 51.74 52.26
1957 48.97 44.35 b 52.19 53.00 a 56.52 h 58.79 f 59.72 f 56.71 58.23 57.29 54.63 51.10 b 52.94
1958 54.90 56.04 51.10 57.10 59.90 62.63 58.77 57.77 60.50 57.16 55.93 52.84 57.05
1959 52.45 50.75 56.35 57.60 58.61 m 63.00 l 60.61 57.84 58.07 59.06 54.73 d 51.13 55.86
1960 52.23 51.10 50.06 53.58 d 57.59 d 58.60 57.23 57.32 58.00 53.58 52.50 50.55 54.36
1961 51.58 49.75 52.39 53.27 52.97 58.73 57.19 56.65 55.17 a 51.52 50.47 49.23 53.24
1962 49.45 46.96 47.55 51.93 52.03 56.50 57.61 58.06 o 56.41 c 56.35 52.83 51.33 j 52.76
1963 48.63 a 52.11 47.23 50.10 48.77 54.27 54.71 57.39 56.97 55.16 53.07 53.57 a 52.66
1964 49.17 a 48.79 47.23 50.40 51.94 58.33 55.65 56.00 55.57 54.45 48.97 48.90 52.12
1965 49.39 43.61 48.10 50.77 52.03 56.50 55.48 55.90 55.57 55.13 51.47 49.87 51.98
1966 51.87 47.57 54.03 52.17 55.58 60.97 59.45 57.71 56.27 53.74 50.90 49.13 54.12
1967 47.48 52.32 48.58 49.43 51.84 55.93 56.94 56.39 56.47 53.71 50.07 47.71 52.24
1968 48.97 50.07 50.10 49.13 55.42 56.03 56.16 56.16 53.37 55.03 55.47 49.87 52.98
1969 46.54 c 49.00 48.73 a 52.07 56.13 58.10 57.69 e 55.03 57.77 55.58 53.10 51.84 53.46
1970 49.16 51.64 51.42 48.10 52.61 58.23 55.29 55.94 55.33 53.97 49.77 44.45 52.16
1971 44.00 49.86 51.42 47.27 51.77 56.57 55.90 54.19 53.13 54.97 50.23 46.94 51.35
1972 44.97 46.83 50.94 48.07 50.94 55.87 55.13 55.16 54.77 54.10 53.87 52.23 51.90
1973 54.19 51.11 46.16 54.13 51.87 60.43 56.48 56.45 57.00 54.50 c 49.00 47.29 53.22
1974 46.90 46.68 47.14 c ----- z 50.23 52.80 53.03 55.42 53.37 52.00 48.53 47.53 a 50.33
1975 43.06 45.95 i 49.71 50.73 52.94 56.03 53.39 54.52 55.20 53.10 50.67 46.58 51.45
1976 44.00 43.72 43.00 48.30 50.94 55.13 54.55 54.42 52.23 52.16 ----- z 49.42 49.81
1977 52.55 51.33 a 48.74 49.93 53.15 d 54.70 56.58 56.42 55.10 53.58 53.57 51.94 53.13
1978 51.90 51.57 51.48 50.37 53.55 54.30 53.97 54.23 54.53 52.97 47.43 47.77 52.01
1979 45.29 c 45.48 g 49.00 51.96 b 54.74 55.43 56.13 55.84 55.33 53.30 a 53.19 d 53.68 53.08
1980 50.86 j 53.48 b 47.00 l 53.50 53.81 56.93 56.61 56.87 55.37 56.13 55.63 54.29 55.26
1981 54.06 51.00 52.48 52.60 58.03 58.03 59.06 56.77 55.60 54.81 54.37 53.48 55.03
1982 49.68 49.72 c 46.55 52.33 55.39 56.53 56.32 54.26 53.63 56.68 56.07 54.03 53.43
1983 56.35 55.39 56.52 b 51.63 54.90 56.80 59.06 58.23 55.50 b 54.32 56.44 c 51.10 55.52
1984 49.23 a 49.93 54.21 c 53.14 b 54.48 59.70 55.52 b 57.63 d 54.77 56.42 52.67 50.16 53.99
1985 52.71 48.79 48.13 49.80 52.68 56.17 56.58 57.13 56.73 55.19 54.13 52.84 53.41
1986 56.16 53.81 a 54.45 51.03 56.23 58.70 57.00 58.65 54.97 56.52 54.07 55.90 a 55.62
1987 51.71 ----- z 52.45 54.93 53.48 54.00 56.39 57.94 55.00 56.26 53.27 51.55 54.27
1988 50.97 49.79 50.32 51.80 55.48 58.37 56.45 56.84 57.16 e 54.16 51.77 d 48.71 53.49
1989 45.45 47.68 50.90 46.27 49.58 56.40 56.39 57.55 57.27 54.10 a 54.13 52.43 a 52.35
1990 50.10 47.18 51.32 55.00 b 56.29 59.17 53.74 56.61 54.00 b 53.48 51.47 48.35 53.06
1991 51.66 b 51.04 c 47.68 53.10 55.68 55.00 58.84 55.03 56.43 55.45 55.37 51.35 53.89
1992 52.68 51.28 54.81 54.40 57.13 59.93 56.68 55.48 55.71 i 57.14 i 56.21 k 52.00 i 55.30
1993 50.50 m 52.95 h 52.87 h 57.73 h 55.90 k 61.05 h 56.85 k 57.50 k 54.86 h 55.29 j 54.65 j 53.76 j 9999.00
1994 51.85 k 49.63 i 53.13 h 55.86 i 56.62 j 58.14 h 58.55 k 58.57 h 56.15 j 57.15 k 53.45 j 57.00 j 9999.00
1995 56.70 k 50.68 i 54.90 j 56.00 j 57.18 i 61.14 h 59.20 k 57.78 h 60.25 j 56.95 j 53.15 j 53.95 k 9999.00
1996 50.05 l 49.85 i 50.40 k 56.41 h 59.27 i 56.95 j 57.83 h 58.59 i 58.00 j 56.77 i 53.05 k 52.14 j 9999.00
1997 52.67 j 51.00 j 47.52 j 54.09 h 55.57 j 58.33 i 59.91 i 59.50 m 57.24 i 57.68 i 52.76 m 55.00 j 9999.00
1998 56.85 k 57.32 i 56.18 i 55.73 h 56.65 k 60.95 h 59.18 i 58.05 j 57.67 i 57.33 j 54.30 j 53.32 i 9999.00
1999 51.26 l 49.26 i 52.70 h 50.68 h 56.75 k 60.50 h 60.29 j 60.27 i 56.62 i 58.65 k 54.65 j 51.25 k 9999.00
2000 48.25 k 53.85 i 53.30 h 55.95 j 58.23 i 58.86 h 58.50 k 58.48 h 57.35 j 54.62 j 52.26 k 54.00 k 9999.00
2001 55.71 j 50.11 i 52.50 i 53.24 i 55.36 i 55.71 i 58.52 j 59.17 h 57.95 k 56.23 i 56.05 j 53.95 l 9999.00
2002 52.29 j 52.29 k 49.67 j 56.80 52.91 i 60.55 j 61.23 i 59.68 i 59.20 j 56.59 i 59.84 k 55.43 j 56.80
2003 57.15 k 57.68 i 55.95 j 53.77 h 55.73 i 57.76 i 59.41 i 59.62 j 57.95 i 59.18 i 57.00 l 53.19 j 9999.00
2004 51.84 l 54.32 j 50.00 h 52.36 h 55.20 k 58.71 i 58.35 k 59.82 i 57.19 i 52.85 k 53.00 k 52.76 j 9999.00
2005 51.72 m 49.37 i 54.39 h 56.52 i 57.86 j 59.36 h 59.20 k 58.26 h 58.29 i 57.75 k 54.35 j 53.67 j 9999.00
2006 51.70 k 49.63 i 47.70 h 54.10 j 55.45 i 61.95 i 59.75 k 57.78 h 57.85 j 55.05 i 54.15 j 55.65 k 9999.00
2007 53.90 k 53.12 k 55.38 o 56.18 m 58.27 i 59.71 i 59.76 j 58.29 j 55.72 l 57.65 h 52.75 j 48.15 k 9999.00
2008 49.00 m 48.25 i 52.33 j 51.48 i 55.25 k 57.67 i 56.59 i 58.05 j 58.24 i 57.45 i 52.94 l 52.33 j 9999.00
2009 50.26 l 48.47 i 47.00 i 51.05 h 57.65 k 60.05 h 57.14 i 57.76 j 60.14 i 56.68 i 53.26 k 52.91 i 9999.00
2010 57.00 l 53.89 i 53.22 h 53.64 h 59.70 k 60.33 i 61.25 k 60.32 i 59.14 i 55.33 j 53.00 j 49.86 j 9999.00
2011 49.40 k 49.26 i 53.61 h 52.43 i 51.33 j 56.14 h 58.50 k 58.91 h 56.95 i 57.24 j 49.05 j 48.14 j 9999.00
2012 51.60 k 50.00 i 50.24 j 52.67 i 54.27 i 56.61 l 58.47 l 57.19 j 56.89 k 57.74 h 53.47 k 52.44 m 9999.00
2013 50.67 j 48.95 i 49.12 n 45.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
Period of Record Statistics
MEAN 49.85 49.56 50.17 51.84 53.86 57.17 56.45 56.31 55.77 54.71 52.63 50.56 53.34
S.D. 3.40 3.08 3.06 2.62 2.51 2.15 1.72 1.22 1.66 1.59 2.35 2.54 1.32
SKEW -0.11 -0.13 0.12 0.13 0.16 0.30 0.26 -0.19 0.33 0.40 -0.34 -0.19 0.93
MAX 56.35 56.04 56.52 57.60 59.90 62.63 60.61 58.65 60.50 59.06 56.44 55.90 57.05
MIN 43.06 43.61 43.00 46.27 48.77 52.80 53.03 54.19 52.23 51.52 47.43 44.45 51.35
NO YRS 37 35 37 38 35 36 36 37 37 37 36 36 27