Mann, Alabama's climate is classified as humid subtropical, with hot, humid summers and mild winters. The average annual temperature is 66.3°F (19°C), with average monthly temperatures ranging from 42.7°F (6°C) in January to 80.5°F (26.9°C) in July.Rainfall is abundant throughout the year, with an average annual precipitation of 55.46 inches (1409 mm). The wettest months are March, April, and May, while the driest months are October and November.
Mann is located in USDA Hardiness Zone 8a, which means that the average annual minimum temperature is between 10 and 15°F (-12 to -9°C). This means that a wide variety of plants can be grown in Mann, including both warm-season and cool-season crops.
The following is a more detailed look at Mann's climate:
    •   January
 The average temperature in January is 42.7°F (6°C), with average high temperatures in the mid-50s and average low temperatures in the mid-30s. Snowfall is rare, but it does occasionally occur.
    •   February
 The average temperature in February is 46.1°F (7.8°C), with average high temperatures in the upper 50s and average low temperatures in the low 40s. Snowfall is rare, but it does occasionally occur.
    •   March
 The average temperature in March is 53.6°F (12°C), with average high temperatures in the mid-60s and average low temperatures in the mid-40s. Rainfall is common in March, and severe thunderstorms can occur.
    •   April
 The average temperature in April is 62.3°F (16.8°C), with average high temperatures in the mid-70s and average low temperatures in the mid-50s. Rainfall is common in April, and severe thunderstorms can occur.
    •   May
 The average temperature in May is 71.3°F (21.8°C), with average high temperatures in the low 80s and average low temperatures in the mid-60s. Rainfall is common in May, and severe thunderstorms can occur.
    •   June
 The average temperature in June is 78.5°F (25.8°C), with average high temperatures in the mid-80s and average low temperatures in the mid-70s. Rainfall is common in June, and severe thunderstorms can occur.
    •   July
 The average temperature in July is 80.5°F (26.9°C), with average high temperatures in the upper 80s and average low temperatures in the mid-70s. Rainfall is common in July, and severe thunderstorms can occur.
    •   August
 The average temperature in August is 79.6°F (26.4°C), with average high temperatures in the upper 80s and average low temperatures in the mid-70s. Rainfall is common in August, and severe thunderstorms can occur.
    •   September
 The average temperature in September is 73.5°F (23.1°C), with average high temperatures in the low 80s and average low temperatures in the mid-60s. Rainfall is common in September, and severe thunderstorms can occur.
    •   October
 The average temperature in October is 63.2°F (17.3°C), with average high temperatures in the mid-70s and average low temperatures in the mid-50s. Rainfall is common in October, but it is typically lighter than in the spring and summer months.
    •   November
 The average temperature in November is 52.2°F (11.2°C), with average high temperatures in the mid-60s and average low temperatures in the mid-40s. Rainfall is common in November, but it is typically lighter than in the spring and summer months.
    •   December
 The average temperature in December is 46.3°F (7.9°C), with average high temperatures in the mid-50s and average low temperatures in the mid-30s. Snowfall is rare, but it does occasionally occur.
Overall, Mann's climate is mild and pleasant, with four distinct seasons. The summers are hot and humid, the winters are mild, and the spring and fall are mild and comfortable.