NINETY NINE ISLANDS, SOUTH CAROLINA

Monthly Average Minimum 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 48.58 33.40 20.65 34.21
1961 21.97 31.75 37.77 38.00 50.42 59.47 63.61 65.06 59.27 38.90 40.60 28.32 44.60
1962 28.03 32.19 a 34.39 39.97 56.29 62.70 63.39 62.26 55.67 45.52 36.13 24.55 45.09
1963 23.61 23.00 36.87 43.24 a 51.97 61.33 63.71 62.33 a 54.57 40.87 34.80 21.84 43.18
1964 26.00 24.93 34.29 45.93 52.39 62.93 65.90 64.48 56.40 40.29 36.40 ----- z 46.36
1965 26.23 30.89 34.03 46.63 55.74 60.33 65.87 65.06 59.97 42.84 33.83 25.65 45.59
1966 24.19 31.54 30.77 43.07 53.57 a 56.37 64.03 64.60 a 55.87 41.74 34.83 27.61 44.02
1967 28.94 27.50 36.06 46.47 49.13 59.83 64.45 63.00 50.10 42.35 29.77 32.42 44.17
1968 24.68 19.31 32.06 44.23 50.48 60.60 65.35 65.16 54.87 46.00 34.50 23.90 43.43
1969 24.68 28.00 27.71 44.77 ----- z 62.77 67.23 62.77 58.40 45.94 30.13 24.84 43.38
1970 20.48 25.32 34.61 45.60 51.94 60.30 65.94 65.52 60.80 49.55 32.93 29.65 45.22
1971 29.03 a 26.50 31.39 37.73 48.16 62.63 65.81 65.13 61.50 53.87 34.47 38.81 46.25
1972 32.77 27.38 35.06 42.10 52.68 55.53 64.35 64.29 57.73 43.20 a 35.83 36.23 45.60
1973 27.42 26.07 42.71 42.80 49.84 63.40 66.35 65.29 61.67 46.77 36.13 30.23 46.56
1974 40.71 29.71 39.16 42.87 54.94 58.37 64.55 65.68 56.87 38.74 32.50 30.26 46.20
1975 30.71 33.79 34.81 43.13 57.68 60.93 65.32 64.84 60.13 47.74 37.07 27.65 46.98
1976 23.32 31.69 38.84 39.70 50.61 59.97 62.87 61.65 55.03 41.68 28.43 24.71 43.21
1977 17.23 21.54 38.23 46.20 54.16 60.97 65.58 65.81 61.57 44.00 41.23 27.74 45.35
1978 23.00 22.04 32.16 43.03 51.84 60.90 65.06 66.39 60.90 40.48 39.13 27.52 44.37
1979 23.55 25.39 36.77 43.13 52.97 59.13 64.52 63.68 62.03 43.32 37.07 28.23 44.98
1980 30.74 23.48 33.81 42.13 52.52 59.20 65.87 64.58 62.17 43.48 31.78 c 26.19 44.66
1981 18.06 26.39 30.55 44.27 47.87 65.10 67.23 65.19 53.80 41.10 31.63 26.77 43.16
1982 22.71 33.11 37.61 41.53 53.68 61.57 67.16 65.13 56.63 46.55 38.60 35.65 46.66
1983 26.52 28.25 35.97 38.97 51.06 58.93 64.52 65.06 55.90 46.97 33.57 25.55 44.27
1984 24.71 29.24 34.81 41.63 48.06 60.73 65.32 65.45 53.57 53.68 30.50 34.35 45.17
1985 21.84 29.39 35.71 42.37 53.10 59.67 65.65 64.68 55.93 53.55 47.97 24.68 46.21
1986 22.71 33.89 34.32 41.93 54.48 64.63 67.19 66.00 61.40 49.45 44.27 30.23 47.54
1987 27.23 30.07 35.32 42.40 56.06 63.23 66.52 67.32 59.83 35.68 35.90 31.55 45.93
1988 22.61 26.52 33.81 41.97 48.42 56.40 65.55 66.61 59.87 38.58 35.10 24.61 43.34
1989 30.84 31.54 38.42 43.87 49.29 63.67 66.58 65.55 60.60 45.42 35.50 24.06 46.28
1990 32.74 35.54 40.65 42.90 54.00 60.97 66.00 66.52 58.13 48.39 34.20 35.10 47.93
1991 31.73 a 31.93 39.16 49.17 60.58 63.47 69.03 66.19 57.83 44.35 34.13 30.52 48.18
1992 28.61 32.03 33.84 43.77 51.65 61.93 67.58 64.52 60.80 42.32 39.13 30.42 46.38
1993 33.48 29.25 35.81 39.30 54.29 61.73 68.00 65.61 59.23 45.35 35.40 28.06 46.29
1994 24.81 29.61 35.55 44.67 49.84 65.60 67.97 64.52 56.60 46.58 37.30 34.87 46.49
1995 29.61 29.29 37.42 43.80 54.94 61.93 67.32 69.10 59.03 47.68 33.30 25.16 46.55
1996 26.84 31.14 33.77 43.87 54.84 60.90 64.71 63.81 56.83 44.35 32.60 28.13 45.15
1997 28.03 31.00 39.81 40.23 48.19 59.83 64.58 61.06 56.93 44.90 30.87 29.61 44.59
1998 33.10 36.39 36.90 45.77 57.52 64.40 67.87 65.94 60.77 47.32 40.23 35.55 49.31
1999 29.87 32.04 32.81 48.52 a 51.00 a 61.76 a 67.81 66.94 53.53 47.55 38.20 29.45 46.62
2000 29.00 29.48 39.45 44.17 56.03 62.53 65.48 65.61 58.69 a 42.42 34.77 22.19 45.82
2001 25.90 34.64 35.68 46.83 53.26 62.50 66.00 66.97 56.80 38.81 37.57 33.06 46.50
2002 26.90 28.96 37.71 50.53 52.19 61.97 67.45 65.74 62.87 52.48 33.43 26.77 47.25
2003 23.90 29.07 41.19 44.00 55.77 60.50 65.74 66.58 57.73 45.48 39.03 24.06 46.09
2004 23.87 27.07 35.94 40.27 56.87 64.60 66.45 63.97 60.00 52.29 39.10 25.90 46.36
2005 30.19 30.46 32.42 42.23 49.65 62.90 68.81 68.06 60.57 49.06 34.20 25.48 46.17
2006 31.35 26.64 34.23 45.60 49.77 60.00 65.39 66.58 58.47 42.65 33.60 29.97 45.35
2007 30.52 22.64 38.19 40.73 50.10 61.53 64.26 68.03 58.83 49.74 30.37 33.48 45.70
2008 24.81 29.59 33.00 43.30 50.13 62.33 63.35 64.90 60.87 43.71 30.87 33.00 44.99
2009 26.48 25.14 36.84 40.63 57.03 63.40 64.03 66.19 60.60 46.00 38.97 26.42 45.98
2010 20.10 26.57 32.71 43.23 57.97 66.37 68.10 69.74 58.67 43.00 32.60 22.23 45.11
2011 22.13 29.50 36.81 44.83 53.58 64.41 a 68.45 65.68 59.87 42.13 35.07 33.13 46.30
2012 29.61 30.10 43.90 45.23 56.18 t ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.21
Period of Record Statistics
MEAN 26.69 28.82 35.80 43.33 52.77 61.51 65.88 65.31 58.37 45.07 35.36 28.57 45.66
S.D. 4.38 3.67 3.13 2.66 3.05 2.28 1.54 1.69 2.72 4.15 3.72 4.24 1.33
SKEW 0.39 -0.36 0.17 0.25 0.30 -0.37 0.18 -0.05 -0.66 0.23 0.85 0.36 0.12
MAX 40.71 36.39 43.90 50.53 60.58 66.37 69.03 69.74 62.87 53.87 47.97 38.81 49.31
MIN 17.23 19.31 27.71 37.73 47.87 55.53 62.87 61.06 50.10 35.68 28.43 20.65 43.16
NO YRS 52 52 52 52 50 51 51 51 51 52 52 51 49