Historical weather data, all-time temperature records, and monthly climate averages for Byram, MS. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Byram typically sits in comfortable spring territory, with average highs of 73° and lows around 50°. This date has seen some wild swings though — from a biting 28° back in 1987 to a scorching 90° just this year in 2025. Rain is unlikely today, with only a 20% chance of precipitation and zero shot at snow.
Byram earns its Mississippi stripes with an all-time high of 107° on August 30, 2000, and a brutal low of 2° on January 20, 1985 — a 105-degree spread that tells you this place means business. The wettest single day on record dumped 7.38 inches on April 6, 2003, and a rare 6 inches of snow fell on February 13, 1960.
Summer dominates the calendar here, with highs averaging 92–93° from mid-July through August and a warmest week running July 16–22. If you're heat-averse, aim for January, when highs sit around 55–57°. Spring is the wet season — the week of April 9–15 is the rainiest of the year, averaging 1.44 inches.