The summary climate graph for Lafayette, LA shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.
The warmest month in Lafayette Regional, Lafayette, Louisiana is August with an average high temperature of 91.6°F. The hottest day on record was August 24 1983 when the temperature hit 104.0°F. During January the overnight temperature drops to an average of 44.2°F with the lowest temperature of 9.9°F being recorded on January 11 1982.
The warmest days on record are:
| 24 Aug 1983 | 104°F |
| 30 Aug 2000 | 104°F |
| 23 Sep 1985 | 102.9°F |
| 3 Sep 2000 | 102.9°F |
| 8 Jul 1985 | 102°F |
The warmest months on average were:
| August 2011 | 96.8°F |
| August 1999 | 95.7°F |
| August 1951 | 95.3°F |
| August 1990 | 94.9°F |
| June 1953 | 94.6°F |
The coldest days on record are:
| 11 Jan 1982 | 9.9°F |
| 23 Dec 1989 | 10°F |
| 25 Dec 1983 | 11.8°F |
| 21 Jan 1985 | 12.9°F |
| 3 Feb 1951 | 15.1°F |
The coldest months on average were:
| January 1948 | 35.6°F |
| January 1985 | 35.9°F |
| December 1989 | 36.2°F |
| January 1981 | 36.6°F |
| January 1977 | 37°F |
The wettest month in Lafayette, LA is July with an average of 5.1 inches of rain falling on 12 to 13 days. The driest month by average rainfall in Lafayette, LA is November with an average of 3.3 inches of rain falling on 8 to 8 days. Although in October it typically rains on less days with 3.3 inches falling in 6 to 7 days
The wettest days on record are:
| 11 July 2010 | 5.4 inches |
| 14 July 1989 | 5.1 inches |
| 21 July 1977 | 4.1 inches |
| 19 July 1978 | 3.9 inches |
| 25 July 1979 | 3 inches |
The wettest months on record are:
| March 1995 | 26.1 inches |
| April 1995 | 24.2 inches |
| June 2001 | 20.3 inches |
| May 2004 | 16.8 inches |
| September 1973 | 15.9 inches |
The driest months on record are:
| November 1945 | 0 inches |
| December 1945 | 0 inches |
| January 1946 | 0 inches |
| February 1946 | 0 inches |
| March 1946 | 0 inches |