The summary climate graph for Meridian, MS 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 Key Field, Meridian, Mississippi is July with an average high temperature of 92.8°F. The hottest day on record was June 10 2007 when the temperature hit 117.0°F. During January the overnight temperature drops to an average of 34.5°F with the lowest temperature of 1.9°F being recorded on December 24 1989.
The warmest days on record are:
| 10 Jun 2007 | 117°F |
| 15 Jul 1980 | 106.9°F |
| 17 Jul 2000 | 106°F |
| 30 Aug 2000 | 106°F |
| 21 Jun 2004 | 106°F |
The warmest months on average were:
| August 2007 | 98.6°F |
| August 2000 | 98.4°F |
| July 2000 | 98.1°F |
| August 1990 | 97.8°F |
| July 1980 | 97.5°F |
The coldest days on record are:
| 24 Dec 1989 | 1.9°F |
| 19 Jan 1977 | 3.9°F |
| 12 Jan 1982 | 5°F |
| 22 Jan 1985 | 5°F |
| 30 Dec 1983 | 7°F |
The coldest months on average were:
| January 1977 | 23.4°F |
| February 1978 | 25.7°F |
| January 1985 | 26.4°F |
| January 1984 | 26.5°F |
| December 1989 | 26.9°F |
The wettest month by average rainfall in Meridian, MS is March with an average of 6.6 inches of rain falling on 10 to 11 days.Although in July it typically rains on more days with 5.4 inches falling in 13 to 14 days. The driest month by average rainfall in Meridian, MS is September with an average of 3.6 inches of rain falling on 8 to 9 days. Although in October it typically rains on less days with 3.7 inches falling in 6 to 7 days
The wettest days on record are:
| 15 March 1973 | 13 inches |
| 30 March 1981 | 4.1 inches |
| 9 March 2011 | 4 inches |
| 31 March 1976 | 3.9 inches |
| 4 March 1979 | 3.9 inches |
The wettest months on record are:
| March 1973 | 32.4 inches |
| May 1973 | 21.3 inches |
| February 1990 | 18.7 inches |
| April 1973 | 17.4 inches |
| January 1973 | 16.6 inches |
The driest months on record are:
| April 1942 | 0 inches |
| May 1942 | 0 inches |
| June 1942 | 0 inches |
| July 1942 | 0 inches |
| August 1942 | 0 inches |