Byram weather by month
What a typical year looks like in Byram, Mississippi: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Jackson International Airport, 24 km from Byram; records cover 1896–2026.
The year at a glance
- Precipitation a year
- 57.3 in1457 mm
- Snow a year
- 1 in2.5 cm
- Last spring freeze
- Mar 13
- First fall freeze
- Nov 13
- Heating degree days
- 2,223
- Cooling degree days
- 2,403
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 22°−6° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Byram in January
Highs average 57°14° and lows 37°3°, with 5.4 in138 mm of precipitation and 0.2 in0.5 cm of snow in a typical January.
- Record high
- 85°29° (1949)
- Record low
- −5°−21° (1940)
- Heating degree days
- 562
- Cooling degree days
- 4
Byram in February
Highs average 62°17° and lows 40°4°, with 5.1 in130 mm of precipitation and 0.2 in0.5 cm of snow in a typical February.
- Record high
- 89°32° (1918)
- Record low
- 1°−17° (1951)
- Heating degree days
- 404
- Cooling degree days
- 9
Byram in March
Highs average 69°21° and lows 46°8°, with 5.7 in144 mm of precipitation and 0.1 in0.3 cm of snow in a typical March.
- Record high
- 95°35° (1929)
- Record low
- 15°−9° (1980)
- Heating degree days
- 253
- Cooling degree days
- 33
Byram in April
Highs average 77°25° and lows 53°12°, with 5.8 in148 mm of precipitation in a typical April.
- Record high
- 94°34° (1899)
- Record low
- 27°−3° (1987)
- Heating degree days
- 94
- Cooling degree days
- 91
Byram in May
Highs average 84°29° and lows 62°17°, with 4.4 in111 mm of precipitation in a typical May.
- Record high
- 100°38° (1911)
- Record low
- 36°2° (2013)
- Heating degree days
- 12
- Cooling degree days
- 258
Byram in June
Highs average 90°32° and lows 69°21°, with 4.4 in113 mm of precipitation in a typical June.
- Record high
- 105°41° (1936)
- Record low
- 47°8° (1984)
- Heating degree days
- 0
- Cooling degree days
- 439
Byram in July
Highs average 92°33° and lows 72°22°, with 5 in128 mm of precipitation in a typical July.
- Record high
- 107°42° (1930)
- Record low
- 51°11° (1967)
- Heating degree days
- 0
- Cooling degree days
- 532
Byram in August
Highs average 92°33° and lows 72°22°, with 4.7 in119 mm of precipitation in a typical August.
- Record high
- 107°42° (2000)
- Record low
- 54°12° (1956)
- Heating degree days
- 0
- Cooling degree days
- 522
Byram in September
Highs average 88°31° and lows 66°19°, with 3.5 in88 mm of precipitation in a typical September.
- Record high
- 107°42° (1925)
- Record low
- 35°2° (1967)
- Heating degree days
- 3
- Cooling degree days
- 360
Byram in OctoberThis month
Highs average 78°26° and lows 54°12°, with 3.8 in97 mm of precipitation in a typical October.
- Record high
- 99°37° (2019)
- Record low
- 26°−3° (1917)
- Heating degree days
- 87
- Cooling degree days
- 126
Byram in November
Highs average 67°20° and lows 44°6°, with 4.4 in112 mm of precipitation in a typical November.
- Record high
- 89°32° (1922)
- Record low
- 15°−9° (1903)
- Heating degree days
- 308
- Cooling degree days
- 20
Byram in December
Highs average 60°15° and lows 39°4°, with 5.1 in130 mm of precipitation and 0.5 in1.3 cm of snow in a typical December.
- Record high
- 84°29° (1922)
- Record low
- 4°−16° (1989)
- Heating degree days
- 500
- Cooling degree days
- 9