PORTAL 4 SW, ARIZONA

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(026716)

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
1965 ----- z ----- z 8.00 23.00 24.00 36.00 50.00 48.00 29.00 26.00 20.00 14.00 8.00
1966 6.00 9.00 9.00 23.00 33.00 38.00 51.00 41.00 40.00 21.00 18.00 6.00 6.00
1967 4.00 11.00 15.00 25.00 20.00 36.00 52.00 46.00 39.00 23.00 21.00 5.00 4.00
1968 14.00 18.00 19.00 21.00 30.00 32.00 48.00 43.00 37.00 26.00 21.00 6.00 6.00
1969 8.00 10.00 13.00 25.00 28.00 40.00 53.00 52.00 40.00 24.00 13.00 7.00 7.00
1970 4.00 11.00 18.00 18.00 24.00 38.00 50.00 a 44.00 35.00 16.00 15.00 11.00 4.00
1971 -1.00 12.00 8.00 22.00 28.00 32.00 a 49.00 50.00 a 35.00 20.00 a 21.00 10.00 -1.00
1972 7.00 5.00 14.00 21.00 29.00 41.00 50.00 48.00 39.00 30.00 16.00 12.00 5.00
1973 9.00 12.00 18.00 16.00 29.00 38.00 44.00 42.00 31.00 25.00 15.00 10.00 9.00
1974 13.00 7.00 16.00 21.00 26.00 36.00 49.00 44.00 40.00 25.00 13.00 a 5.00 5.00
1975 4.00 8.00 19.00 19.00 24.00 38.00 51.00 47.00 36.00 26.00 14.00 12.00 4.00
1976 6.00 12.00 16.00 18.00 30.00 35.00 49.00 48.00 39.00 23.00 11.00 13.00 6.00
1977 10.00 11.00 12.00 19.00 29.00 38.00 48.00 50.00 43.00 31.00 22.00 13.00 10.00
1978 14.00 12.00 20.00 22.00 26.00 38.00 46.00 45.00 42.00 25.00 18.00 -5.00 -5.00
1979 2.00 16.00 19.00 21.00 26.00 39.00 46.00 44.00 41.00 21.00 10.00 11.00 2.00
1980 12.00 2.00 18.00 21.00 29.00 34.00 51.00 45.00 42.00 24.00 15.00 12.00 2.00
1981 16.00 12.00 20.00 24.00 34.00 40.00 50.00 48.00 38.00 21.00 20.00 14.00 12.00
1982 7.00 12.00 13.00 26.00 31.00 39.00 47.00 52.00 40.00 24.00 17.00 7.00 7.00
1983 3.00 17.00 23.00 21.00 29.00 36.00 46.00 46.00 46.00 32.00 18.00 16.00 3.00
1984 13.00 14.00 15.00 22.00 33.00 45.00 52.00 51.00 39.00 32.00 13.00 17.00 13.00
1985 14.00 6.00 18.00 25.00 30.00 38.00 48.00 44.00 35.00 33.00 17.00 11.00 6.00
1986 15.00 13.00 23.00 25.00 28.00 43.00 50.00 52.00 34.00 28.00 19.00 12.00 12.00
1987 2.00 6.00 14.00 25.00 33.00 41.00 44.00 44.00 42.00 a 34.00 14.00 -3.00 -3.00
1988 6.00 13.00 17.00 22.00 26.00 33.00 47.00 52.00 36.00 33.00 13.00 6.00 6.00
1989 6.00 18.00 19.00 25.00 29.00 37.00 50.00 45.00 33.00 20.00 14.00 7.00 6.00
1990 8.00 4.00 14.00 25.00 30.00 40.00 51.00 42.00 41.00 23.00 16.00 8.00 4.00
1991 10.00 16.00 14.00 21.00 28.00 33.00 48.00 48.00 40.00 22.00 14.00 8.00 8.00
1992 7.00 19.00 22.00 26.00 36.00 38.00 45.00 44.00 39.00 27.00 10.00 12.00 7.00
1993 16.00 16.00 19.00 22.00 31.00 35.00 48.00 51.00 33.00 16.00 11.00 10.00 10.00
1994 8.00 8.00 17.00 22.00 32.00 43.00 49.00 53.00 41.00 29.00 a 16.00 18.00 8.00
1995 13.00 20.00 19.00 23.00 31.00 36.00 46.00 53.00 41.00 29.00 20.00 14.00 13.00
1996 11.00 23.00 16.00 23.00 35.00 39.00 46.00 46.00 40.00 18.00 22.00 6.00 6.00
1997 5.00 14.00 19.00 25.00 35.00 41.00 49.00 50.00 42.00 22.00 16.00 7.00 q 5.00
1998 15.00 17.00 16.00 20.00 28.00 37.00 51.00 48.00 44.00 28.00 22.00 11.00 11.00
1999 13.00 8.00 22.00 a 17.00 26.00 34.00 52.00 50.00 39.00 25.00 15.00 13.00 8.00
2000 12.00 18.00 a 19.00 21.00 33.00 46.00 52.00 b 45.00 ----- z 29.00 a 16.00 13.00 12.00
2001 9.00 15.00 18.00 24.00 29.00 40.00 g 54.00 m 48.00 38.00 29.00 c 16.00 12.00 9.00
2002 10.00 10.00 8.00 24.00 a 28.00 42.00 51.00 47.00 40.00 26.00 20.00 12.00 8.00
2003 16.00 16.00 19.00 23.00 29.00 42.00 52.00 52.00 42.00 26.00 14.00 4.00 4.00
2004 16.00 12.00 21.00 26.00 28.00 g 37.00 k 42.00 d 43.00 33.00 29.00 d 8.00 6.00 b 6.00
2005 14.00 20.00 17.00 a 22.00 28.00 ----- z 49.00 50.00 37.00 29.00 ----- z 9.00 g 9.00
2006 9.00 8.00 17.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 13.00 f 8.00
2007 6.00 c 15.00 13.00 b 27.00 j 32.00 43.00 54.00 52.00 44.00 28.00 23.00 a 8.00 6.00
2008 ----- z 14.00 ----- z 23.00 29.00 38.00 52.00 50.00 43.00 25.00 20.00 g 13.00 13.00
2009 14.00 13.00 19.00 23.00 36.00 36.00 f 54.00 n 50.00 38.00 f 16.00 22.00 h 16.00 i 13.00
2010 16.00 20.00 20.00 26.00 25.00 40.00 50.00 51.00 41.00 33.00 10.00 10.00 f 10.00
2011 10.00 2.00 23.00 a 22.00 26.00 c 38.00 50.00 55.00 a 43.00 31.00 a 25.00 14.00 2.00
2012 15.00 19.00 16.00 25.00 a 34.00 a 44.00 b 53.00 a 49.00 42.00 b 0.00 b 0.00 a 16.00 0.00
2013 2.00 13.00 18.00 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 2.00
Period of Record Statistics
MEAN 9.55 12.65 16.88 22.46 29.33 38.37 49.13 47.83 38.98 25.17 15.95 9.93 6.09
S.D. 4.63 4.93 3.79 2.48 3.48 3.42 2.68 3.51 3.70 5.98 4.67 4.69 4.09
SKEW -0.26 -0.21 -0.70 -0.58 -0.09 0.14 -0.56 -0.07 -0.69 -1.59 -0.72 -1.06 -0.57
MAX 16.00 23.00 23.00 26.00 36.00 46.00 54.00 55.00 46.00 34.00 25.00 18.00 13.00
MIN -1.00 2.00 8.00 16.00 20.00 32.00 42.00 41.00 29.00 0.00 0.00 -5.00 -5.00
NO YRS 47 48 48 46 46 43 45 47 45 47 44 43 35