Climate and monthly weather forecastSumiton, AL
Climate and monthly weather forecast
Weather in January
January, the same as December, is a cool winter month in Sumiton, Alabama, with an average temperature fluctuating between 35.1°F (1.7°C) and 50.5°F (10.3°C). In Sumiton, the month of January registers the lowest temperatures, averaging 50.5°F (10.3°C) at the peak and 35.1°F (1.7°C) at the lowest. Weather in January »Weather in February
February, the last month of the winter in Sumiton, is a moderate month, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 55.6°F (13.1°C). The average high-temperature for February is a mild 55.6°F (13.1°C), closely aligning with the temperature of the preceding month. Weather in February »Weather in March
March, the first month of the spring in Sumiton, is a comfortable month, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 63.5°F (17.5°C). In Sumiton, the onset of March comes with a modest high-temperature shift, transitioning from February's refreshing 55.6°F (13.1°C) to a comfortable 63.5°F (17.5°C). Weather in March »Weather in April
April is a pleasant spring month in Sumiton, Alabama, with an average temperature fluctuating between 72.7°F (22.6°C) and 52.5°F (11.4°C). The shift from March to April brings an increase in the average high-temperature, moving from an enjoyable 63.5°F (17.5°C) to a pleasant 72.7°F (22.6°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Sumiton, Alabama, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 81°F (27.2°C). May's arrival brings a slight change in high-temperatures, adjusting from an agreeable 72.7°F (22.6°C) in April to a moderately hot 81°F (27.2°C). Weather in May »Weather in June
June, the first month of the summer in Sumiton, is a tropical month, with an average temperature ranging between min 67.6°F (19.8°C) and max 88.3°F (31.3°C). With the onset of June, Sumiton's average high-temperature experiences a slight rise, moving from May's warm 81°F (27.2°C) to a hot 88.3°F (31.3°C). Weather in June »Weather in July
July, the same as June, in Sumiton, Alabama, is another tropical summer month, with temperature in the range of an average high of 90.5°F (32.5°C) and an average low of 70.3°F (21.3°C). Sumiton's temperatures peak on average in July, reaching 90.5°F (32.5°C) at their highest and 70.3°F (21.3°C) at their lowest. July's mean heat index is estimated at a blistering 111.2°F (44°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Sumiton, Alabama, with an average temperature ranging between min 70.3°F (21.3°C) and max 90.1°F (32.3°C). At the onset of August, Sumiton records an average high-temperature of a still hot 90.1°F (32.3°C), showing little deviation from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Sumiton, Alabama, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 65.3°F (18.5°C). As Sumiton, Alabama, welcomes September, the average high-temperature is noted at a moderately hot 85.1°F (29.5°C), closely aligning with the preceding month. Weather in September »Weather in October
October, like September, in Sumiton, Alabama, is a moderately hot autumn month, with an average temperature fluctuating between 74.3°F (23.5°C) and 54°F (12.2°C). Observing a mild shift, the average high-temperature during October reduces from September's 85.1°F (29.5°C) to a still moderately hot 74.3°F (23.5°C). Weather in October »Weather in November
November, the last month of the autumn in Sumiton, is another refreshing month, with an average temperature fluctuating between 43.2°F (6.2°C) and 61.7°F (16.5°C). In Sumiton, the beginning of November is marked by a lowered average high-temperature, shifting from October's moderately hot 74.3°F (23.5°C) to an enjoyable 61.7°F (16.5°C). Weather in November »Weather in December
December, the first month of the winter in Sumiton, is still a cool month, with an average temperature varying between 54.3°F (12.4°C) and 39.7°F (4.3°C). The average high-temperature shows a slight dip in December, from November's enjoyable 61.7°F (16.5°C) to a cool 54.3°F (12.4°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Sumiton, AL
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).
The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure
Sumiton, AL
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed
Sumiton, AL
- Average wind speed in January:
7.1mph - Average wind speed in February:
7.3mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.2mph - Average wind speed in May:
5.7mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.5mph - Average wind speed in September:
5mph - Average wind speed in October:
6mph - Average wind speed in November:
6.5mph - Average wind speed in December:
6.8mph
The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity
Sumiton, AL
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Sumiton, AL
- Average rainfall in January:
1.22" - Average rainfall in February:
1.3" - Average rainfall in March:
1.26" - Average rainfall in April:
1.38" - Average rainfall in May:
1.18" - Average rainfall in June:
1.18"
- Average rainfall in July:
1.46" - Average rainfall in August:
1.46" - Average rainfall in September:
0.75" - Average rainfall in October:
0.79" - Average rainfall in November:
0.91" - Average rainfall in December:
1.3"
The wettest months (with the highest rainfall) are July and August (1.46").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days
Sumiton, AL
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
11.6 days - Average rainfall days in April:
11 days - Average rainfall days in May:
10.9 days - Average rainfall days in June:
12.5 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
7.1 days - Average rainfall days in November:
7.1 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is July (15.8 days).
The months with the least rainy days are October and November (7.1 days).
Average snowfall
Sumiton, AL
The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days
Sumiton, AL
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
1.1 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
0.5 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Sumiton, AL
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 24min - Average sunshine in April:
9h and 24min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 0min - Average sunshine in October:
7h and 24min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Sumiton, AL
- Average sunshine days in January:
20 days - Average sunshine days in February:
16.7 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
17.3 days - Average sunshine days in May:
17.4 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
22.6 days - Average sunshine days in November:
21.7 days - Average sunshine days in December:
19.4 days
The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (11.5 days).
Average UV index
Sumiton, AL
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Sumiton, AL
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Sumiton, AL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





