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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Decatur, Arkansas, is another chilly winter month, with an average temperature varying between 28.4°F (-2°C) and 44.4°F (6.9°C). Decatur's coldest temperatures are experienced in January, with average high temperatures of 44.4°F (6.9°C) and lows of 28.4°F (-2°C). Weather in January »
Weather in February
The last month of the winter, February, is another chilly month in Decatur, Arkansas, with an average temperature varying between 48.6°F (9.2°C) and 32°F (0°C). February's commencement is accompanied by an average high-temperature of a still chilly 48.6°F (9.2°C), diverging marginally from January's 44.4°F (6.9°C). Weather in February »
Weather in March
The first month of the spring, March, is a moderate month in Decatur, Arkansas, with an average temperature varying between 41°F (5°C) and 59°F (15°C). With the onset of March, the average high-temperature slightly shifts from February's frosty 48.6°F (9.2°C) to a refreshing 59°F (15°C). Weather in March »
Weather in April
April in Decatur, Arkansas, is a pleasant spring month, with an average temperature varying between 49.1°F (9.5°C) and 68.4°F (20.2°C). The start of April brings a rise in the average high-temperature, moving from a moderate 59°F (15°C) in March to an agreeable 68.4°F (20.2°C). Weather in April »
Weather in May
May, the last month of the spring in Decatur, is a moderately hot month, with an average temperature fluctuating between 76.6°F (24.8°C) and 57.6°F (14.2°C). May's arrival coincides with a subtle temperature rise, moving from April's agreeable 68.4°F (20.2°C) to a moderately hot 76.6°F (24.8°C). Weather in May »
Weather in June
June, the first month of the summer in Decatur, is a tropical month, with an average temperature fluctuating between 66.9°F (19.4°C) and 87.3°F (30.7°C). Decatur experiences a temperature shift with the start of June, with average high-temperatures moving from a warm 76.6°F (24.8°C) in May to a tropical 87.3°F (30.7°C). Weather in June »
Weather in July
July, like June, is another hot summer month in Decatur, Arkansas, with an average temperature ranging between max 90.5°F (32.5°C) and min 69.6°F (20.9°C). July is the warmest month, exhibiting average temperatures of 90.5°F (32.5°C) at the peak and 69.6°F (20.9°C) at the base. For July, the heat index is computed to be a scorching 107.6°F (42°C). Weather in July »
Weather in August
The last month of the summer, August, is another tropical month in Decatur, Arkansas, with an average temperature varying between 68.2°F (20.1°C) and 88.9°F (31.6°C). August denotes a minimal variation in the average high-temperature to a still tropical 88.9°F (31.6°C) from July's 90.5°F (32.5°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Decatur, Arkansas, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 61.5°F (16.4°C). During the shift to September, Decatur records a mild decrease in average high-temperature, moving from a hot 88.9°F (31.6°C) in August to a moderately hot 81.7°F (27.6°C). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Decatur, Arkansas, with an average temperature ranging between max 68.9°F (20.5°C) and min 49.8°F (9.9°C). The shift to October brings a decrease in the average high-temperature, falling from a moderately hot 81.7°F (27.6°C) in September to an agreeable 68.9°F (20.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Decatur, is also a moderate month, with temperature in the range of an average high of 57°F (13.9°C) and an average low of 39.9°F (4.4°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from an agreeable 68.9°F (20.5°C) to a mild 57°F (13.9°C). Weather in November »
Weather in December
December, the first month of the winter in Decatur, is still a chilly month, with temperature in the range of an average low of 32°F (0°C) and an average high of 46.6°F (8.1°C). The arrival of December corresponds with a shift in temperature, down from a mild 57°F (13.9°C) in November to a chilly 46.6°F (8.1°C). Weather in December »
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January, known for its average high temperature of 44.4°F (6.9°C) and an average low temperature of 28.4°F (-2°C), is the coldest month in Decatur.
How many days does it rain?
In Decatur, during the entire year, the rain falls for 139.7 days and collects up to 31.02" (788mm) of precipitation.
When does it snow?
January through May, November and December are months with snowfall.
How much does it snow?
In Decatur, during the entire year, snow falls for 13.9 days and aggregates up to 4.8" (122mm) of snow.
What is the month with the least sunshine?
The months with the least sunshine are January and December, with an average of 5.4h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
What is the driest month?
The month with the least rainfall is February, when the rain falls for 9.5 days and typically collects 1.89" (48mm) of precipitation.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 4.7 days and accumulates 1.46" (37mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the most humid month?
May is the most humid month, with an average relative humidity of 77%.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 4.37" (111mm) of precipitation.
When it does not snow in Decatur?
June through October are months without snowfall.
When are the longest days?
With an average of 14h and 36min of daylight, June has the longest days of the year.
What is the warmest month?
July, having an average high-temperature of 90.5°F (32.5°C) and an average low-temperature of 69.6°F (20.9°C), is the warmest month in Decatur.
What month has the most sunshine in Decatur?
July has the most sunshine of the year, with an average of 10.8h of sunshine.
What is the month with the highest UV index?
With an average maximum UV index of 7, July is the month with the highest UV index.
What is the least humid month?
With an average relative humidity of 70%, October is the least humid month.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 42min of daylight.
Average temperature
Decatur, AR
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (44.4°F).
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure
Decatur, AR
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.12"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 April and June (29.93"Hg).
Average wind speed
Decatur, AR
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.4mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.3mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity
Decatur, AR
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Decatur, AR
- Average rainfall in January:
2.36" - Average rainfall in February:
1.89" - Average rainfall in March:
3.19" - Average rainfall in April:
3.39" - Average rainfall in May:
4.37" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.48" - Average rainfall in September:
2.09" - Average rainfall in October:
2.72" - Average rainfall in November:
1.93" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days
Decatur, AR
- Average rainfall days in January:
8.5 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
14.2 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
8.7 days
The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are January and November (8.5 days).
Average snowfall
Decatur, AR
- Average snowfall in January:
1.3" - Average snowfall in February:
1.46" - Average snowfall in March:
1.06" - Average snowfall in April:
0.04" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Decatur, AR
- Average snowfall days in January:
3.4 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.3 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:
0.1 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
2.6 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Decatur, AR
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days
Decatur, AR
- Average sunshine days in January:
19 days - Average sunshine days in February:
14 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
15.4 days
- Average sunshine days in July:
16.3 days - Average sunshine days in August:
17.2 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is December (19.2 days).
The months with the least sunshine days are March and April (13.3 days).
Average UV index
Decatur, AR
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Decatur, AR
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility
Decatur, AR
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).
Decatur, Arkansas, USA
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