Winona weather by month
What a typical year looks like in Winona, Mississippi: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Winona 5 E, 10 km from Winona; records cover 1953–2025.
The year at a glance
- Precipitation a year
- 59 in1499 mm
- Snow a year
- 0.8 in2 cm
- Last spring freeze
- Apr 9
- First fall freeze
- Oct 28
- Heating degree days
- 3,306
- Cooling degree days
- 1,603
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 14°−10° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Winona in January
Highs average 53°11° and lows 29°−2°, with 5.4 in137 mm of precipitation and 0.2 in0.5 cm of snow in a typical January.
- Record high
- 82°28° (2022)
- Record low
- −9°−23° (1966)
- Heating degree days
- 748
- Cooling degree days
- 1
Winona in February
Highs average 57°14° and lows 32°0°, with 5.5 in138 mm of precipitation and 0.4 in1 cm of snow in a typical February.
- Record high
- 84°29° (1996)
- Record low
- 0°−18° (1996)
- Heating degree days
- 577
- Cooling degree days
- 1
Winona in March
Highs average 65°19° and lows 39°4°, with 5.6 in143 mm of precipitation and 0.2 in0.5 cm of snow in a typical March.
- Record high
- 87°31° (1955)
- Record low
- 9°−13° (1980)
- Heating degree days
- 412
- Cooling degree days
- 7
Winona in April
Highs average 73°23° and lows 46°8°, with 6.1 in155 mm of precipitation in a typical April.
- Record high
- 92°33° (1987)
- Record low
- 24°−4° (1987)
- Heating degree days
- 203
- Cooling degree days
- 34
Winona in May
Highs average 80°27° and lows 56°13°, with 5 in126 mm of precipitation in a typical May.
- Record high
- 96°36° (1953)
- Record low
- 34°1° (2013)
- Heating degree days
- 51
- Cooling degree days
- 136
Winona in June
Highs average 87°30° and lows 64°18°, with 4.5 in114 mm of precipitation in a typical June.
- Record high
- 101°38° (1954)
- Record low
- 40°4° (1984)
- Heating degree days
- 2
- Cooling degree days
- 311
Winona in July
Highs average 89°32° and lows 67°20°, with 5.3 in135 mm of precipitation in a typical July.
- Record high
- 104°40° (1986)
- Record low
- 49°9° (1972)
- Heating degree days
- 0
- Cooling degree days
- 411
Winona in August
Highs average 90°32° and lows 66°19°, with 4.1 in103 mm of precipitation in a typical August.
- Record high
- 105°41° (2000)
- Record low
- 50°10° (1992)
- Heating degree days
- 0
- Cooling degree days
- 397
Winona in September
Highs average 85°30° and lows 60°15°, with 4 in100 mm of precipitation in a typical September.
- Record high
- 104°40° (1954)
- Record low
- 34°1° (1967)
- Heating degree days
- 17
- Cooling degree days
- 239
Winona in OctoberThis month
Highs average 75°24° and lows 47°8°, with 3.7 in95 mm of precipitation in a typical October.
- Record high
- 97°36° (1954)
- Record low
- 25°−4° (2017)
- Heating degree days
- 176
- Cooling degree days
- 58
Winona in November
Highs average 64°18° and lows 37°3°, with 4.2 in106 mm of precipitation in a typical November.
- Record high
- 88°31° (2016)
- Record low
- 12°−11° (1976)
- Heating degree days
- 453
- Cooling degree days
- 6
Winona in December
Highs average 55°13° and lows 32°0°, with 5.7 in145 mm of precipitation in a typical December.
- Record high
- 82°28° (1971)
- Record low
- −2°−19° (1989)
- Heating degree days
- 667
- Cooling degree days
- 2