Dallas, Texas Weather Records and Averages       

    The Dallas–Fort Worth Metroplex is located in North Central Texas, approximately 250 miles north of the Gulf of Mexico. It is near the headwaters of the Trinity River, which lie in the upper margins of the Coastal Plain. The rolling hills in the area range from 500 to 800 feet in elevation.

The Dallas–Fort Worth climate is humid subtropical with hot summers. It is also continental, characterized by a wide annual temperature range. Precipitation also varies considerably, ranging from less than 20 to more than 50 inches.

Winters are mild, but northers occur about three times each month, and often are accompanied by sudden drops in temperature. Periods of extreme cold that occasionally occur are short–lived, so that even in January mild weather occurs frequently.

The highest temperatures of summer are associated with fair skies, westerly winds and low humidity. Characteristically, hot spells in summer are broken into three–to–five day periods by thunderstorm activity. There are only a few nights each summer when the low temperature exceeds 80 degrees. Summer daytime temperatures frequently exceed 100 degrees. 

Throughout the year, rainfall occurs more frequently during the night. Usually, periods of rainy weather last for only a day or two, and are followed by several days with fair skies. A large part of the annual precipitation results from thunderstorm activity, with occasional heavy rainfall over brief periods of time. Thunderstorms occur throughout the year, but are most frequent in the spring. Hail falls on about two or three days a year, ordinarily with only slight and scattered damage. Windstorms occurring during thunderstorm activity are sometimes destructive. Snowfall is rare.

Temperature + Precipitation 

  Monthly Averages Daily Extremes Monthly Extremes
Temperatures
 in F
Max. Min. Avg High Date of 
daily extreme
 high
Low Date of
daily extreme
low
Highest
Avg
Year Lowest
Avg
Year
January 55.3 34.7 45.0 84 03/2006 7 10/1982 55.0 2006 33.8 1978
February 60.0 38.8 49.4 95 21/1996 7 02/1985 58.4 1976 36.7 1978
March 68.2 46.8 57.5 96 31/1974 15 02/1980 63.9 2007 51.8 2001
April 76.2 54.7 65.5 101 17/2006 29 11/1989 72.0 2006 60.3 1997
May 83.7 63.9 73.8 103 30/1985 41 04/1978 79.7 1996 68.5 1976
June 91.7 71.2 81.4 113 26/1980 54 01/1983 87.0 1980 77.3 1983
July 96.1 75.1 85.6 110 02/1980 62 14/1990 92.0 1980 82.1 1976
August 96.1 74.8 85.5 109 06/2003 59 28/1992 90.2 1999 80.2 1992
September 88.4 67.4 77.9 108 04/1998 43 30/1984 83.7 2005 70.9 1974
October 78.5 56.5 67.5 102 01/1979 29 30/1980 72.1 2004 60.2 1976
November 66.6 45.8 56.2 89 06/1989 22 23/1975 62.9 1999 49.5 1976
December 57.5 36.9 47.2 89 03/2005 -1 23/1989 52.5 1984 34.7 1983
Annual 76.5 55.6 66.0 113 1980/06/26 -1 1989/12/23 69.2 2006 63.3 1983
Winter 57.6 36.8 47.2 95 1996/02/21 -1 1989/12/23 53.0 2000 39.3 1978
Spring 76.0 55.1 65.6 103 1985/05/30 15 1980/03/02 70.7 2006 61.5 1983
Summer 94.6 73.7 84.2 113 1980/06/26 54 1983/06/01 89.2 1980 81.0 1989
Fall 77.8 56.6 67.2 108 1998/09/04 22 1975/11/23 71.6 2007 61.9 1976

Precipitation

    Total Snowfall
  Avg. High Year Low Year 1 Day Max. >=
0.01 in.
>=
0.10 in.
>=
0.50 in.
>=
1.00 in.
Mean High Year
  in. in. - in. - in. dd/yyyy
or
yyyymmdd
# Days # Days # Days # Days in. in. -
January 2.13 5.58 2007 0.00 1986 3.15 04/1998 7 4 1 0 0.6 5.4 1977
February 2.50 7.40 1997 0.35 1996 2.90 12/1997 6 4 2 1 1.3 13.5 1978
March 3.38 7.39 2002 0.80 1974 4.39 19/2002 8 5 2 1 0.2 2.1 2008
April 3.04 6.90 1990 0.11 1987 3.18 07/2002 7 5 2 1 - - -
May 4.97 13.66 1982 0.95 1996 3.54 28/1978 9 6 4 2 - - -
June 3.46 11.10 2007 0.34 2006 3.08 07/1989 7 5 3 1 - - -
July 2.15 5.54 2007 0.00 1993 3.83 01/2001 5 3 1 1 - - -
August 1.97 5.55 1983 0.00 1980 4.05 31/1976 5 3 1 1 - - -
September 2.66 9.09 2010 0.09 1984 5.24 08/2010 6 4 2 1 - - -
October 3.96 14.18 1981 0.00 1975 3.81 27/1996 7 5 3 1 - - -
November 2.50 6.95 2000 0.02 2005 2.23 10/2008 6 4 2 1 0.2 5.0 1976
December 2.38 8.75 1991 0.17 1981 4.22 20/1991 6 4 2 1 0.3 3.2 2009
 
Annual 35.11 53.54 1991 18.97 2005 5.24 2010/09/08 79 52 24 10 2.6 18.4 1978
 
Winter 7.01 15.22 1998 1.81 2009 4.22 1991/12/20 20 12 5 2 2.2 17.6 1978
Spring 11.38 21.02 1995 5.28 2003 4.39 2002/03/19 24 16 8 4 0.2 2.1 2008
Summer 7.59 18.89 2004 1.76 1999 4.05 1976/08/31 17 11 5 2

-

-

-

Fall 9.13 18.11 1981 1.29 1975 5.24 2010/09/08 19 13 6 3 0.2 5.0 1976
Texas averages and extremes in precipitation and temperature and Top 10 U.S climate extremes.
Winter = Dec, Jan, and Feb Spring = Mar, Apr, and May
Summer = Jun, Jul, and Aug. Fall = Sep, Oct, and Nov
Data period is 1974 - 2010, DFW Airport. Source: Western Regional Climate Center