Climate and monthly weather forecastMount Vernon, AR
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Mount Vernon, Arkansas, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 32.2°F (0.1°C). The coldest period is January, when temperatures fluctuate between an average high of 46.9°F (8.3°C) and a low of 32.2°F (0.1°C). Weather in January »Weather in February
The last month of the winter, February, is a fresh month in Mount Vernon, Arkansas, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 50.7°F (10.4°C). February begins with an average high-temperature of a fresh 50.7°F (10.4°C), reflecting close similarity to the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Mount Vernon, Arkansas, with an average temperature varying between 43°F (6.1°C) and 60.4°F (15.8°C). As Mount Vernon, Arkansas, transitions into March, a rise in the average high-temperature is observed, moving from a fresh 50.7°F (10.4°C) in February to a refreshing 60.4°F (15.8°C). Weather in March »Weather in April
April is an agreeable spring month in Mount Vernon, Arkansas, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 51.1°F (10.6°C). As Mount Vernon enters April, the average high-temperature increases from the a refreshing 60.4°F (15.8°C) of March to a pleasant 70.3°F (21.3°C). Weather in April »Weather in May
May, the last month of the spring in Mount Vernon, is a moderately hot month, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 79.2°F (26.2°C). The average high-temperature mildly increases in May, edging from a pleasant 70.3°F (21.3°C) in April to a warm 79.2°F (26.2°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Mount Vernon, Arkansas, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 88.3°F (31.3°C). The arrival of June sees a shift in the average high-temperature, moving from a warm 79.2°F (26.2°C) in May to a tropical 88.3°F (31.3°C). Weather in June »Weather in July
July, the same as June, in Mount Vernon, Arkansas, is another tropical summer month, with an average temperature varying between 70.3°F (21.3°C) and 91°F (32.8°C). Mount Vernon reaches its highest average temperatures in July, measuring 91°F (32.8°C) at the peak and 70.3°F (21.3°C) at the lowest. During July, the heat index is evaluated at a scorching 111.2°F (44°C). Weather in July »Weather in August
August, the last month of the summer in Mount Vernon, is another hot month, with an average temperature varying between 69.4°F (20.8°C) and 90.1°F (32.3°C). Mount Vernon experiences an average high-temperature of a still hot 90.1°F (32.3°C) in August, subtly different from July's 91°F (32.8°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Mount Vernon, Arkansas, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 63.1°F (17.3°C). As August transitions into September, Mount Vernon sees a gentle drop in the average high-temperature, transitioning from a tropical 90.1°F (32.3°C) to a warm 83.7°F (28.7°C). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Mount Vernon, Arkansas, with an average temperature ranging between min 51.8°F (11°C) and max 71.4°F (21.9°C). The shift from September to October involves a decrease in the average high-temperature, from a warm 83.7°F (28.7°C) to an agreeable 71.4°F (21.9°C). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Mount Vernon, Arkansas, with temperature in the range of an average high of 58.5°F (14.7°C) and an average low of 42.1°F (5.6°C). November brings a decrease in the average high-temperature, shifting from a pleasant 71.4°F (21.9°C) in October to a moderate 58.5°F (14.7°C). Weather in November »Weather in December
December, the first month of the winter in Mount Vernon, is also a frosty month, with an average temperature fluctuating between 35.8°F (2.1°C) and 49.6°F (9.8°C). The transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderate 58.5°F (14.7°C) in November to a frosty 49.6°F (9.8°C). Weather in December »Updated: Feb 9, 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
The coldest period is January, when temperatures fluctuate between an average high of 46.9°F (8.3°C) and a low of 32.2°F (0.1°C).
In Mount Vernon, during the entire year, the rain falls for 118 days and collects up to 13.58" (345mm) of precipitation.
Months with snowfall are January through March, November and December.
In Mount Vernon, during the entire year, snow falls for 3.9 days and aggregates up to 0.71" (18mm) of snow.
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Mount Vernon, Arkansas.
February has the least sunshine of the year, with an average of 5.2h of sunshine.
The most humid month in Mount Vernon is March, with an average relative humidity of 79%.
The month with the most snowfall in Mount Vernon is March, when snow falls for 0.4 days and typically aggregates up to 0.24" (6mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Mount Vernon, Arkansas, 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.
In Mount Vernon, Arkansas, snow does not fall in April through October.
With an average of 14h and 30min of daylight, June has the longest days of the year in Mount Vernon, Arkansas.
June is the month with the highest UV index in Mount Vernon, Arkansas, with an average maximum UV index of 7.
With average temperatures fluctuating between a high of 91°F (32.8°C) and a low of 70.3°F (21.3°C), July stands out as the warmest month in Mount Vernon.
July is the month with the most rainfall in Mount Vernon, Arkansas. Rain falls for 13.3 days and accumulates 1.61" (41mm) of precipitation.
With an average of 10.8h of sunshine, July has the most sunshine of the year in Mount Vernon, Arkansas.
The month with the least rainfall is September, when the rain falls for 9.1 days and typically collects 0.67" (17mm) of precipitation.
The least humid month in Mount Vernon is October, with an average relative humidity of 72%.
December has the shortest days of the year in Mount Vernon, with an average of 9h and 48min of daylight.
Average temperature
Mount Vernon, AR
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (46.9°F).
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure
Mount Vernon, AR
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.01"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 (29.94"Hg).
Average wind speed
Mount Vernon, AR
- Average wind speed in January:
7.3mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.7mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity
Mount Vernon, AR
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Mount Vernon, AR
- Average rainfall in January:
0.98" - Average rainfall in February:
1.02" - Average rainfall in March:
0.98" - Average rainfall in April:
1.54" - Average rainfall in May:
1.42" - Average rainfall in June:
1.14"
- Average rainfall in July:
1.61" - Average rainfall in August:
1.18" - Average rainfall in September:
0.67" - Average rainfall in October:
0.98" - Average rainfall in November:
0.98" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days
Mount Vernon, AR
- Average rainfall days in January:
7.4 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
11 days - Average rainfall days in April:
10.3 days - Average rainfall days in May:
11.9 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
9.1 days - Average rainfall days in October:
7.2 days - Average rainfall days in November:
7.3 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is October (7.2 days).
Average snowfall
Mount Vernon, AR
The month with the highest snowfall is March (0.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Mount Vernon, AR
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
1.1 days - Average snowfall days in March:
0.4 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:
0.5 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Mount Vernon, AR
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - 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 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 12min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 42min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days
Mount Vernon, AR
- Average sunshine days in January:
21.1 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
17.7 days - Average sunshine days in May:
16 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
21.6 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
21.1 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (14 days).
Average UV index
Mount Vernon, AR
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Mount Vernon, AR
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility
Mount Vernon, AR
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
