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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, like December, in Duncan, Mississippi, is another fresh winter month, with temperature in the range of an average high of 50.2°F (10.1°C) and an average low of 36.9°F (2.7°C). Duncan, Mississippi, experiences its lowest temperatures in January, with an average peak of 50.2°F (10.1°C) and a low of 36.9°F (2.7°C). Weather in January »
Weather in February
February, the last month of the winter in Duncan, is another cool month, with an average temperature ranging between min 40.3°F (4.6°C) and max 54.3°F (12.4°C). Entering February, the average high-temperature is recorded at a still fresh 54.3°F (12.4°C), exhibiting a minimal shift from January's 50.2°F (10.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a comfortable month in Duncan, Mississippi, with an average temperature fluctuating between 47.3°F (8.5°C) and 63.1°F (17.3°C). The shift from February to March sees a slight increase in the average high-temperature, transitioning from a cool 54.3°F (12.4°C) to an enjoyable 63.1°F (17.3°C). Weather in March »
Weather in April
April is an agreeable spring month in Duncan, Mississippi, with an average temperature ranging between min 55°F (12.8°C) and max 72.5°F (22.5°C). The arrival of April sees a shift in the average high-temperature, moving from a comfortable 63.1°F (17.3°C) in March to an agreeable 72.5°F (22.5°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Duncan, Mississippi, with an average temperature varying between 64.8°F (18.2°C) and 81°F (27.2°C). May signals a minor shift in the average high-temperature, moving from April's agreeable 72.5°F (22.5°C) to a moderately hot 81°F (27.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a hot month in Duncan, Mississippi, with an average temperature fluctuating between 72.1°F (22.3°C) and 88.3°F (31.3°C). As Duncan transitions into June, a marginal rise in the average high-temperature is observed, moving from a moderately hot 81°F (27.2°C) in May to a tropical 88.3°F (31.3°C). Weather in June »
Weather in July
July, like June, is another tropical summer month in Duncan, Mississippi, with temperature in the range of an average low of 73.2°F (22.9°C) and an average high of 90.1°F (32.3°C). Duncan's July weather, marked by an average high temperature of 90.1°F (32.3°C) and an average low temperature of 73.2°F (22.9°C), is the warmest in the year. July's average heat index is evaluated at a blisteringly hot 109.4°F (43°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Duncan, Mississippi, with an average temperature varying between 88.9°F (31.6°C) and 71.8°F (22.1°C). During August, Duncan records an average high-temperature of a still tropical 88.9°F (31.6°C), marking a slight divergence from July's 90.1°F (32.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Duncan, Mississippi, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 66.7°F (19.3°C). Duncan experiences an average high-temperature of a warm 85.1°F (29.5°C) in September, marking an insignificant shift from 88.9°F (31.6°C) in August. Weather in September »
Weather in October
October, like September, in Duncan, Mississippi, is a moderately hot autumn month, with an average temperature fluctuating between 55.8°F (13.2°C) and 74.1°F (23.4°C). The beginning of October involves a decrease in the average high-temperature, transitioning from 85.1°F (29.5°C) in September to a still warm 74.1°F (23.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Duncan, is another refreshing month, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 61.7°F (16.5°C). Start of November brings a shift in the average high-temperature, falling from October's warm 74.1°F (23.4°C) to a comfortable 61.7°F (16.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a fresh month in Duncan, Mississippi, with an average temperature ranging between max 53.1°F (11.7°C) and min 40.8°F (4.9°C). Duncan's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's enjoyable 61.7°F (16.5°C) to a cool 53.1°F (11.7°C). Weather in December »
Updated: Jun 29, 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 are the coldest months?
January stands out as Duncan's coldest month, with temperatures ranging between an average high of 50.2°F (10.1°C) and a low of 36.9°F (2.7°C).
How many days does it rain?
In Duncan, during the entire year, the rain falls for 144.9 days and collects up to 31.22" (793mm) of precipitation.
When does it snow?
Months with snowfall are January through March, November and December.
How much does it snow?
Throughout the year, there are 2.3 snowfall days, and 0.87" (22mm) of snow is accumulated.
What is the month with the lowest UV index?
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index.
What is the most humid month?
The months with the highest humidity are February, March and December, with an average relative humidity of 78%.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 0.9 days and typically aggregates up to 0.35" (9mm) of snow.
What is the month with the least sunshine in Duncan?
The month with the least sunshine is February, with an average of 4.7h of sunshine.
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 wettest month?
The months with the most rainfall are April and May, with an average 3.46" (88mm) of precipitation.
When it does not snow?
In Duncan, snow does not fall in April through October.
When are the longest days?
The month with the longest days is June, with an average of 14h and 24min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.7h of sunshine.
When is the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 7.
What is the hottest time of year?
Duncan's warmest temperatures are experienced in July, with average high temperatures of 90.1°F (32.3°C) and lows of 73.2°F (22.9°C).
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.42" (36mm) of precipitation.
What is the least humid month?
With an average relative humidity of 67%, 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 54min of daylight.
Average temperature
Duncan, MS
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.2°F).
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure
Duncan, MS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Duncan, MS
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.7mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.3mph - Average wind speed in November:
8mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Duncan, MS
The months with the highest relative humidity are February, March and December (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall
Duncan, MS
- Average rainfall in January:
1.93" - Average rainfall in February:
3.27" - Average rainfall in March:
2.87" - Average rainfall in April:
3.46" - Average rainfall in May:
3.46" - Average rainfall in June:
2.64"
- Average rainfall in July:
3.15" - Average rainfall in August:
2.44" - Average rainfall in September:
1.42" - Average rainfall in October:
2.13" - Average rainfall in November:
1.65" - Average rainfall in December:
2.8"
The wettest months (with the highest rainfall) are April and May (3.46").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days
Duncan, MS
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
12.1 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
8.3 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.6 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is October (8.3 days).
Average snowfall
Duncan, MS
The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Duncan, MS
- Average snowfall days in January:
0.5 days - Average snowfall days in February:
0.9 days - Average snowfall days in March:
0.2 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:
0.3 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Duncan, MS
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 4min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 4min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Duncan, MS
- Average sunshine days in January:
18.9 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
15 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
13 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
21.1 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (12.8 days).
Average UV index
Duncan, MS
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover
Duncan, MS
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility
Duncan, MS
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).
Duncan, Mississippi, USA
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