Climate and monthly weather forecastMount Vernon, OH
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Mount Vernon, Ohio, with an average temperature fluctuating between 31.5°F (-0.3°C) and 19.2°F (-7.1°C). January is the month that records the lowest temperatures, with averages ranging from a high of 31.5°F (-0.3°C) to a low of 19.2°F (-7.1°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in Mount Vernon, Ohio, with an average temperature varying between 36°F (2.2°C) and 22.5°F (-5.3°C). Mount Vernon's shift from January to February is accompanied by an average high-temperature of a wintry 36°F (2.2°C), a slight deviation from 31.5°F (-0.3°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Mount Vernon, Ohio, with an average temperature ranging between min 30.7°F (-0.7°C) and max 46.8°F (8.2°C). With the onset of March, Mount Vernon experiences a temperature shift, with the average high-temperature moving from a cold 36°F (2.2°C) in February to a frosty 46.8°F (8.2°C). Weather in March »Weather in April
April is a mild spring month in Mount Vernon, Ohio, with an average temperature ranging between max 58.6°F (14.8°C) and min 41°F (5°C). A rise in the average high-temperature is observed during April, moving from a frosty 46.8°F (8.2°C) in March to a moderate 58.6°F (14.8°C). Weather in April »Weather in May
May, the last month of the spring in Mount Vernon, is an agreeable month, with an average temperature ranging between max 69.4°F (20.8°C) and min 51.4°F (10.8°C). Mount Vernon experiences a temperature shift with the start of May, with average high-temperatures moving from a mild 58.6°F (14.8°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »Weather in June
June, the first month of the summer in Mount Vernon, is a warm month, with an average temperature fluctuating between 58.8°F (14.9°C) and 76.1°F (24.5°C). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's pleasant 69.4°F (20.8°C) to a warm 76.1°F (24.5°C). Weather in June »Weather in July
July, like June, in Mount Vernon, Ohio, is a moderately hot summer month, with an average temperature varying between 79.9°F (26.6°C) and 62.1°F (16.7°C). The temperatures reach their highest averages in July, with highs of 79.9°F (26.6°C) and lows of 62.1°F (16.7°C). Weather in July »Weather in August
August, the last month of the summer in Mount Vernon, is another warm month, with an average temperature varying between 60.4°F (15.8°C) and 78.8°F (26°C). On the advent of August, Mount Vernon's average high-temperature exhibits a minor adjustment to a still warm 78.8°F (26°C) from July's 79.9°F (26.6°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Mount Vernon, Ohio, with an average temperature fluctuating between 73.2°F (22.9°C) and 54.5°F (12.5°C). In September, the meteorological conditions change slightly, with the average high-temperature moving from a warm 78.8°F (26°C) in August to an agreeable 73.2°F (22.9°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Mount Vernon, Ohio, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 61.2°F (16.2°C). Mount Vernon's average high-temperature decreases in October, falling from an agreeable 73.2°F (22.9°C) in September to an enjoyable 61.2°F (16.2°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Mount Vernon, Ohio, with an average temperature varying between 47.8°F (8.8°C) and 34.2°F (1.2°C). Welcoming November, Mount Vernon observes a shift in the average high-temperature, falling from October's comfortable 61.2°F (16.2°C) to a frosty 47.8°F (8.8°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Mount Vernon, Ohio, with an average temperature fluctuating between 27.3°F (-2.6°C) and 38.1°F (3.4°C). December's onset brings a reduction in the average high-temperature, from a chilly 47.8°F (8.8°C) in November to a wintry 38.1°F (3.4°C). Weather in December »Updated: Jun 21, 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
In Mount Vernon, January is known for its average lowest temperatures, reaching a high of 31.5°F (-0.3°C) and a low of 19.2°F (-7.1°C).
With an average relative humidity of 86%, January is the most humid month.
Throughout the year, there are 148.8 rainfall days, and 18.9" (480mm) of precipitation is accumulated.
Months with snowfall in Mount Vernon are January through April, November and December.
Throughout the year, there are 32.5 snowfall days, and 5.63" (143mm) of snow is accumulated.
The month with the least sunshine is January, with an average of 3.2h of sunshine.
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the least rainfall is February, when the rain falls for 6.9 days and typically collects 1.18" (30mm) of precipitation.
The month with the most snowfall is February, when snow falls for 7.5 days and typically aggregates up to 1.65" (42mm) of snow.
March, April and November, with an average relative humidity of 78%, are the least humid months in Mount Vernon.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
May is the month with the most rainfall. Rain falls for 18.6 days and accumulates 2.36" (60mm) of precipitation.
In Mount Vernon, snow does not fall in May through October.
June has the longest days of the year, with an average of 15h and 0min of daylight.
June and July, with an average maximum UV index of 6, are months with the highest UV index.
The warmest time of the year is July, with temperatures averaging a high of 79.9°F (26.6°C) and a low of 62.1°F (16.7°C).
With an average of 10.1h of sunshine, August has the most sunshine of the year.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Mount Vernon, OH
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (31.5°F).
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure
Mount Vernon, OH
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Mount Vernon, OH
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.5mph - Average wind speed in May:
7.7mph - Average wind speed in June:
7mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Mount Vernon, OH
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are March, April and November (78%).
Average rainfall
Mount Vernon, OH
- Average rainfall in January:
1.26" - Average rainfall in February:
1.18" - Average rainfall in March:
1.57" - Average rainfall in April:
1.85" - Average rainfall in May:
2.36" - Average rainfall in June:
1.85"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days
Mount Vernon, OH
- Average rainfall days in January:
7.7 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
18.6 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
15.4 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
11.4 days - Average rainfall days in November:
8 days - Average rainfall days in December:
8.3 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall
Mount Vernon, OH
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Mount Vernon, OH
- Average snowfall days in January:
10 days - Average snowfall days in February:
7.5 days - Average snowfall days in March:
5 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.1 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:
0.2 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
6.3 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Mount Vernon, OH
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 12min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Mount Vernon, OH
- Average sunshine days in January:
16 days - Average sunshine days in February:
14.2 days - Average sunshine days in March:
15 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
12.7 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
19 days - Average sunshine days in December:
17 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.5 days).
Average UV index
Mount Vernon, OH
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Mount Vernon, OH
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Mount Vernon, OH
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
