NINETY NINE ISLANDS, SOUTH CAROLINA

Monthly Average Temperature (Degrees Fahrenheit)

(386293)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 201205
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
1940 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1942 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1943 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1945 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1949 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1950 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1951 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1952 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1953 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1954 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1955 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1956 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1957 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1958 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1959 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1960 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 62.15 49.18 36.11 49.15
1961 36.56 44.93 52.11 52.58 63.52 72.13 76.34 75.65 72.73 57.90 54.35 40.84 58.30
1962 39.00 45.81 a 46.74 55.33 72.11 c 73.38 f 76.68 75.98 68.98 61.08 48.60 37.81 57.10
1963 36.87 37.20 52.03 59.31 a 65.76 72.90 75.98 76.23 a 68.62 59.40 49.97 34.81 57.42
1964 39.95 38.17 49.32 59.10 67.29 76.00 76.68 75.11 70.00 55.16 53.08 ----- z 59.99
1965 40.76 43.79 46.16 60.03 71.24 71.83 76.95 77.08 71.78 58.08 49.72 42.10 59.13
1966 35.47 42.46 47.13 57.43 65.92 a 71.17 77.65 76.42 a 69.35 57.02 50.17 40.85 57.59
1967 43.19 39.77 52.48 61.50 63.35 71.75 75.31 74.31 64.02 57.92 45.60 45.11 57.86
1968 36.92 36.03 50.23 58.95 64.50 73.72 77.10 78.82 69.75 60.35 48.80 39.05 57.85
1969 37.76 40.29 43.87 59.35 ----- z 75.88 80.32 74.47 69.10 60.02 46.92 38.48 56.95
1970 34.39 41.41 49.02 60.32 67.21 73.60 78.90 76.87 74.13 62.69 48.23 43.71 59.21
1971 39.50 a 41.12 45.16 55.70 63.16 75.78 76.15 75.94 73.05 65.11 48.83 50.53 59.17
1972 44.65 40.16 49.16 57.78 64.76 69.77 76.39 76.06 71.72 57.47 a 48.38 46.92 58.60
1973 40.34 40.29 54.73 56.63 63.90 74.63 77.85 76.61 74.43 61.58 51.93 42.35 59.61
1974 50.97 44.09 54.50 58.53 68.16 71.13 76.34 76.35 68.28 57.19 48.38 41.66 59.63
1975 43.84 45.93 47.50 57.80 70.03 73.85 76.37 77.98 70.57 62.42 52.22 41.24 59.98
1976 37.35 48.97 53.55 58.12 63.58 71.80 75.50 74.56 68.13 55.06 43.07 38.26 57.33
1977 29.40 39.34 53.26 61.48 68.50 74.68 79.77 77.61 73.12 57.24 52.25 40.27 58.91
1978 34.29 35.02 47.40 59.12 65.19 74.55 77.77 78.03 72.65 57.61 52.82 41.81 58.02
1979 36.60 37.86 51.89 58.05 65.94 70.83 75.35 76.52 71.05 58.47 51.82 42.56 58.08
1980 41.03 38.12 46.71 57.57 66.40 72.20 79.45 79.56 74.00 57.35 45.85 c 41.11 58.28
1981 34.68 41.98 47.16 61.15 63.39 77.82 79.03 75.66 68.90 56.23 48.57 37.97 57.71
1982 35.55 44.73 51.85 55.50 69.44 73.83 78.06 75.82 68.83 59.58 51.48 47.34 59.34
1983 38.32 41.86 50.19 53.70 65.32 72.58 79.52 79.44 70.12 60.39 48.63 38.50 58.21
1984 38.16 44.40 49.23 54.97 63.53 74.80 76.10 77.10 68.10 66.94 46.87 49.19 59.11
1985 35.13 42.38 52.32 59.80 67.15 74.53 77.37 75.71 69.27 64.26 57.97 38.47 59.53
1986 37.71 46.09 49.69 59.15 66.73 76.93 80.69 74.92 71.32 61.05 51.87 41.10 59.77
1987 38.45 40.96 48.42 56.08 68.39 73.97 78.79 78.52 70.35 52.19 50.30 43.32 58.31
1988 33.73 40.31 48.82 57.38 a 63.89 71.47 76.65 78.02 69.30 52.52 49.45 39.29 56.73
1989 43.39 43.45 50.77 56.78 62.39 74.08 76.40 75.35 69.53 59.76 48.98 34.95 57.99
1990 45.53 48.62 52.98 57.32 65.77 73.43 77.19 77.34 70.17 60.94 50.93 46.03 60.52
1991 40.87 a 45.25 51.73 60.75 70.26 73.37 78.65 75.26 69.88 59.37 47.20 44.03 59.72
1992 41.42 44.81 47.97 57.53 62.68 70.83 78.06 73.19 69.45 55.84 49.43 39.84 57.59
1993 43.18 40.29 46.45 54.40 66.08 73.97 81.21 76.82 71.25 58.98 48.73 39.65 58.42
1994 35.58 42.88 50.42 59.98 63.15 75.22 76.35 73.76 67.27 58.24 51.33 45.52 58.31
1995 40.65 40.07 51.63 58.98 66.95 71.80 78.13 77.74 68.52 59.71 45.25 38.27 58.14
1996 37.74 43.29 45.63 57.25 67.48 71.93 74.97 73.00 66.98 57.02 43.52 40.69 56.63
1997 38.97 43.12 53.37 53.20 60.69 68.87 75.74 72.89 68.53 57.32 43.12 39.92 56.31
1998 43.84 46.21 48.24 58.30 69.23 76.25 78.76 76.87 72.30 61.34 52.25 46.42 60.83
1999 43.11 45.52 46.52 61.45 a 64.83 a 72.10 a 78.69 79.39 68.60 60.00 53.28 43.08 59.71
2000 39.44 44.78 54.02 56.90 69.47 74.72 76.66 76.27 69.00 a 59.55 47.88 33.66 58.53
2001 39.02 46.66 48.26 60.52 66.68 73.67 75.11 77.79 68.00 55.66 53.92 46.48 59.31
2002 40.95 43.12 50.71 63.20 64.45 74.72 79.29 77.50 71.88 61.26 46.32 38.66 59.34
2003 36.31 41.66 52.26 56.33 65.13 70.92 75.15 75.95 69.58 58.82 53.63 38.26 57.83
2004 37.73 38.97 51.27 56.53 70.10 74.55 77.47 74.16 69.90 62.03 51.90 39.97 58.71
2005 42.65 42.73 46.76 56.30 62.84 72.72 78.40 78.26 74.13 61.58 49.72 38.79 58.74
2006 44.63 40.46 48.94 61.23 63.47 72.80 76.92 77.89 69.40 56.52 49.10 45.26 58.88
2007 42.79 37.46 53.65 56.02 64.89 73.95 75.50 82.05 72.97 63.90 47.43 46.32 59.74
2008 37.79 43.98 48.37 56.12 64.03 76.53 76.21 76.10 70.72 57.48 45.48 44.18 58.08
2009 38.50 40.71 48.97 56.17 67.19 75.00 75.13 76.98 70.88 57.37 51.13 38.02 58.00
2010 34.06 37.12 47.35 59.58 68.98 77.48 79.84 79.18 72.75 59.26 48.33 33.60 58.13
2011 35.15 43.77 49.90 59.45 66.33 a 76.86 a 80.23 77.92 70.87 56.98 49.90 45.81 59.43
2012 42.08 44.36 58.11 59.07 68.50 t ----- z ----- z ----- z ----- z ----- z ----- z ----- z 50.91
Period of Record Statistics
MEAN 39.15 42.17 49.90 58.00 66.03 73.60 77.43 76.61 70.28 59.10 49.50 41.34 58.60
S.D. 3.81 3.16 2.91 2.30 2.58 2.03 1.65 1.83 2.10 2.91 2.99 3.91 0.98
SKEW 0.34 -0.12 0.32 -0.15 0.36 0.00 0.49 0.22 -0.06 0.18 0.04 0.19 0.03
MAX 50.97 48.97 58.11 63.20 72.11 77.82 81.21 82.05 74.43 66.94 57.97 50.53 60.83
MIN 29.40 35.02 43.87 52.58 60.69 68.87 74.97 72.89 64.02 52.19 43.07 33.60 56.31
NO YRS 52 52 52 52 50 50 51 51 51 52 52 51 48