TUCSON INTL AP, at

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(028820)

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1930 ----- z 30.00 b 30.00 40.00 40.00 43.00 63.00 63.00 51.00 40.00 26.00 d 18.00 18.00
1931 22.00 32.00 28.00 40.00 49.00 53.00 69.00 64.00 50.00 41.00 26.00 22.00 22.00
1932 19.00 26.00 31.00 31.00 44.00 48.00 66.00 61.00 58.00 39.00 35.00 ----- z 19.00
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1934 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1935 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1936 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1937 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1938 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 61.00 ----- z ----- z ----- z 61.00
1939 ----- z ----- z ----- z ----- z ----- z 58.00 ----- z ----- z ----- z ----- z ----- z ----- z 58.00
1940 ----- z ----- z 31.00 42.00 50.00 61.00 62.00 a 64.00 a 61.00 42.00 29.00 33.00 b 29.00
1941 30.00 37.00 36.00 34.00 45.00 53.00 65.00 65.00 48.00 a ----- z ----- z ----- z 30.00
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 65.00 67.00 60.00 43.00 29.00 23.00 23.00
1949 16.00 25.00 31.00 38.00 49.00 54.00 67.00 65.00 66.00 35.00 37.00 22.00 16.00
1950 17.00 32.00 35.00 40.00 38.00 53.00 67.00 67.00 55.00 52.00 37.00 34.00 17.00
1951 28.00 27.00 26.00 39.00 42.00 54.00 70.00 63.00 63.00 43.00 35.00 27.00 26.00
1952 25.00 25.00 32.00 43.00 48.00 57.00 68.00 67.00 52.00 51.00 32.00 28.00 25.00
1953 29.00 23.00 33.00 38.00 42.00 54.00 69.00 68.00 58.00 42.00 25.00 24.00 23.00
1954 31.00 31.00 29.00 45.00 46.00 54.00 69.00 64.00 61.00 42.00 35.00 18.00 18.00
1955 25.00 20.00 26.00 37.00 41.00 47.00 63.00 63.00 58.00 46.00 31.00 33.00 20.00
1956 33.00 25.00 26.00 34.00 47.00 63.00 66.00 61.00 64.00 37.00 28.00 26.00 25.00
1957 29.00 33.00 36.00 42.00 46.00 59.00 69.00 65.00 58.00 44.00 30.00 27.00 27.00
1958 27.00 31.00 33.00 37.00 52.00 60.00 66.00 68.00 54.00 46.00 24.00 28.00 24.00
1959 26.00 27.00 28.00 44.00 43.00 59.00 68.00 68.00 57.00 39.00 34.00 28.00 26.00
1960 24.00 24.00 30.00 34.00 46.00 57.00 63.00 67.00 58.00 45.00 27.00 20.00 20.00
1961 32.00 32.00 34.00 43.00 46.00 52.00 64.00 64.00 56.00 38.00 32.00 32.00 32.00
1962 21.00 29.00 27.00 44.00 46.00 50.00 65.00 65.00 60.00 45.00 32.00 35.00 21.00
1963 21.00 33.00 30.00 37.00 53.00 53.00 70.00 66.00 63.00 51.00 39.00 27.00 21.00
1964 18.00 24.00 29.00 38.00 41.00 58.00 69.00 65.00 56.00 50.00 31.00 32.00 18.00
1965 30.00 22.00 20.00 37.00 40.00 52.00 68.00 66.00 44.00 41.00 37.00 30.00 20.00
1966 27.00 29.00 24.00 43.00 52.00 56.00 66.00 68.00 63.00 43.00 32.00 23.00 23.00
1967 20.00 30.00 32.00 34.00 39.00 55.00 68.00 69.00 63.00 41.00 38.00 26.00 20.00
1968 32.00 30.00 36.00 37.00 47.00 54.00 68.00 63.00 55.00 45.00 33.00 19.00 19.00
1969 27.00 28.00 27.00 43.00 39.00 57.00 69.00 70.00 61.00 41.00 34.00 24.00 24.00
1970 23.00 24.00 36.00 36.00 43.00 57.00 69.00 70.00 55.00 35.00 39.00 29.00 23.00
1971 17.00 27.00 22.00 39.00 46.00 50.00 68.00 67.00 55.00 26.00 35.00 27.00 17.00
1972 23.00 30.00 35.00 37.00 48.00 61.00 66.00 64.00 55.00 38.00 32.00 26.00 23.00
1973 26.00 33.00 33.00 35.00 44.00 56.00 63.00 66.00 55.00 43.00 32.00 28.00 26.00
1974 28.00 26.00 32.00 39.00 44.00 58.00 67.00 67.00 60.00 39.00 35.00 16.00 16.00
1975 25.00 25.00 31.00 34.00 40.00 59.00 67.00 69.00 59.00 40.00 31.00 26.00 25.00
1976 23.00 31.00 30.00 33.00 48.00 54.00 68.00 66.00 59.00 45.00 29.00 27.00 23.00
1977 29.00 28.00 34.00 37.00 47.00 63.00 70.00 70.00 64.00 51.00 38.00 36.00 28.00
1978 29.00 29.00 39.00 37.00 48.00 59.00 67.00 68.00 55.00 49.00 37.00 20.00 20.00
1979 25.00 32.00 35.00 36.00 44.00 56.00 67.00 63.00 62.00 42.00 24.00 31.00 24.00
1980 34.00 38.00 38.00 40.00 43.00 54.00 68.00 66.00 60.00 39.00 32.00 31.00 31.00
1981 35.00 29.00 38.00 38.00 51.00 62.00 68.00 66.00 61.00 35.00 34.00 27.00 27.00
1982 29.00 29.00 31.00 40.00 49.00 57.00 62.00 65.00 53.00 39.00 34.00 27.00 27.00
1983 30.00 33.00 35.00 36.00 47.00 58.00 64.00 65.00 63.00 52.00 30.00 30.00 30.00
1984 28.00 28.00 34.00 37.00 50.00 63.00 67.00 67.00 62.00 47.00 26.00 30.00 26.00
1985 31.00 24.00 32.00 43.00 50.00 55.00 70.00 66.00 55.00 50.00 31.00 26.00 24.00
1986 36.00 31.00 37.00 41.00 44.00 64.00 65.00 68.00 54.00 44.00 35.00 29.00 29.00
1987 19.00 32.00 33.00 42.00 50.00 62.00 64.00 64.00 57.00 54.00 32.00 23.00 19.00
1988 26.00 35.00 31.00 39.00 40.00 55.00 69.00 70.00 53.00 56.00 32.00 20.00 20.00
1989 24.00 31.00 32.00 41.00 48.00 58.00 70.00 65.00 57.00 40.00 32.00 26.00 24.00
1990 28.00 23.00 30.00 45.00 49.00 57.00 66.00 65.00 59.00 44.00 30.00 21.00 21.00
1991 26.00 33.00 34.00 37.00 44.00 52.00 67.00 68.00 62.00 36.00 35.00 29.00 26.00
1992 28.00 36.00 39.00 44.00 50.00 58.00 59.00 63.00 63.00 50.00 26.00 29.00 26.00
1993 31.00 34.00 38.00 42.00 51.00 51.00 68.00 65.00 57.00 46.00 31.00 30.00 30.00
1994 29.00 27.00 40.00 42.00 51.00 63.00 67.00 69.00 62.00 42.00 28.00 32.00 27.00
1995 31.00 40.00 32.00 38.00 44.00 54.00 63.00 68.00 59.00 46.00 35.00 32.00 31.00
1996 28.00 35.00 34.00 43.00 55.00 60.00 70.00 70.00 60.00 38.00 31.00 26.00 26.00
1997 29.00 26.00 35.00 40.00 52.00 59.00 68.00 69.00 65.00 40.00 38.00 27.00 26.00
1998 29.00 33.00 31.00 37.00 47.00 56.00 69.00 69.00 56.00 41.00 35.00 26.00 26.00
1999 28.00 24.00 36.00 34.00 45.00 52.00 68.00 66.00 64.00 49.00 29.00 25.00 24.00
2000 27.00 33.00 35.00 39.00 53.00 64.00 70.00 64.00 59.00 46.00 29.00 30.00 27.00
2001 29.00 30.00 35.00 35.00 50.00 62.00 69.00 68.00 65.00 48.00 29.00 27.00 27.00
2002 25.00 31.00 24.00 44.00 49.00 60.00 65.00 65.00 60.00 46.00 38.00 30.00 24.00
2003 33.00 32.00 34.00 40.00 49.00 62.00 67.00 69.00 64.00 50.00 30.00 19.00 19.00
2004 29.00 29.00 38.00 43.00 49.00 58.00 62.00 66.00 54.00 44.00 27.00 27.00 27.00
2005 32.00 40.00 39.00 44.00 51.00 62.00 70.00 65.00 61.00 49.00 28.00 29.00 28.00
2006 28.00 35.00 32.00 44.00 56.00 65.00 66.00 69.00 59.00 42.00 27.00 26.00 26.00
2007 20.00 31.00 31.00 44.00 50.00 60.00 69.00 70.00 60.00 47.00 37.00 25.00 20.00
2008 28.00 29.00 35.00 42.00 49.00 61.00 69.00 69.00 63.00 38.00 36.00 26.00 26.00
2009 31.00 32.00 38.00 38.00 59.00 60.00 68.00 70.00 66.00 34.00 39.00 27.00 27.00
2010 33.00 35.00 36.00 41.00 43.00 a 60.00 69.00 69.00 62.00 51.00 23.00 25.00 23.00
2011 21.00 18.00 40.00 37.00 47.00 59.00 67.00 72.00 63.00 45.00 35.00 28.00 18.00
2012 32.00 34.00 29.00 40.00 53.00 62.00 68.00 71.00 63.00 44.00 35.00 30.00 29.00
2013 17.00 29.00 33.00 53.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 40.00 z 17.00
Period of Record Statistics
MEAN 26.78 29.70 32.51 39.23 46.97 57.03 66.93 66.53 58.79 43.51 32.01 26.76 23.89
S.D. 4.74 4.48 4.30 3.41 4.38 4.43 2.44 2.47 4.39 5.45 4.11 4.26 3.94
SKEW -0.51 -0.11 -0.55 -0.15 0.06 -0.55 -0.92 -0.06 -0.76 -0.21 -0.18 -0.36 -0.17
MAX 36.00 40.00 40.00 45.00 59.00 65.00 70.00 72.00 66.00 56.00 39.00 36.00 32.00
MIN 16.00 18.00 20.00 31.00 38.00 43.00 59.00 61.00 44.00 26.00 23.00 16.00 16.00
NO YRS 68 69 70 69 69 70 70 70 71 69 69 68 65