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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 Vandalia, Missouri, is an icy winter month, with an average temperature varying between 21.9°F (-5.6°C) and 35.2°F (1.8°C). Vandalia experiences its lowest temperatures in January, with an average peak of 35.2°F (1.8°C) and a low of 21.9°F (-5.6°C). Weather in January »
Weather in February
February, the last month of the winter in Vandalia, is also an icy month, with an average temperature ranging between max 39.7°F (4.3°C) and min 25.3°F (-3.7°C). February's onset records an average high-temperature of a still cold 39.7°F (4.3°C), a near match to January's 35.2°F (1.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Vandalia, Missouri, with an average temperature varying between 52.7°F (11.5°C) and 36.5°F (2.5°C). March signals a shift in the average high-temperature, moving from February's icy 39.7°F (4.3°C) to a fresh 52.7°F (11.5°C). Weather in March »
Weather in April
April is a refreshing spring month in Vandalia, Missouri, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 45.9°F (7.7°C). April sees a rise in the average high-temperature, climbing from a cool 52.7°F (11.5°C) in March to a refreshing 64°F (17.8°C). Weather in April »
Weather in May
May, the last month of the spring in Vandalia, is a pleasant month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 73.2°F (22.9°C). May brings a rise in Vandalia's average high-temperature, moving from a refreshing 64°F (17.8°C) in April to a pleasant 73.2°F (22.9°C). Weather in May »
Weather in June
June, the first month of the summer in Vandalia, is a moderately hot month, with an average temperature fluctuating between 64.9°F (18.3°C) and 82.9°F (28.3°C). Vandalia sees a rise in temperature during June, with average high-temperatures transitioning from a pleasant 73.2°F (22.9°C) in May to a moderately hot 82.9°F (28.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Vandalia, Missouri, with temperature in the range of an average high of 85.5°F (29.7°C) and an average low of 67.5°F (19.7°C). July registers as the month with the highest average temperatures, reaching 85.5°F (29.7°C) at its peak and 67.5°F (19.7°C) at the lowest. The heat index in July is estimated at a fiery hot 96.8°F (36°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Vandalia, Missouri, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 65.7°F (18.7°C). As August takes hold, the average high-temperature is a still moderately hot 84.2°F (29°C), nearly mirroring that of the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Vandalia, is still a warm month, with an average temperature ranging between min 58.8°F (14.9°C) and max 78.3°F (25.7°C). September is characterized by a slight reduction in average high-temperature, easing from a moderately hot 84.2°F (29°C) in August to a still warm 78.3°F (25.7°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Vandalia, Missouri, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 47.3°F (8.5°C). Welcoming October, Vandalia observes a shift in the average high-temperature, falling from September's warm 78.3°F (25.7°C) to an enjoyable 65.1°F (18.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Vandalia, is another cool month, with an average temperature varying between 36.3°F (2.4°C) and 51.6°F (10.9°C). With November's onset, the average high-temperature recedes from October's refreshing 65.1°F (18.4°C) to a cool 51.6°F (10.9°C). Weather in November »
Weather in December
December, the first month of the winter in Vandalia, is still a cold month, with an average temperature varying between 28°F (-2.2°C) and 40.3°F (4.6°C). December brings a drop in Vandalia's average high-temperature, falling from a fresh 51.6°F (10.9°C) in November to an icy 40.3°F (4.6°C). Weather in December »
Updated: Aug 7, 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 is the coldest month?
January, known for its average high temperature of 35.2°F (1.8°C) and an average low temperature of 21.9°F (-5.6°C), is the coldest month.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 5.9 days and typically collects 1.46" (37mm) of precipitation.
How much does it rain?
In Vandalia, during the entire year, the rain falls for 142.4 days and collects up to 28.98" (736mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 7.5 days and accumulates 3.7" (94mm) of snow.
How many days does it snow?
In Vandalia, during the entire year, snow falls for 22.8 days and aggregates up to 10.71" (272mm) of snow.
What is the month with the least sunshine?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index in Vandalia?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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 are the most humid months?
May and July, with an average relative humidity of 79%, are most humid months.
What is the rainiest month in Vandalia?
The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 3.62" (92mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What month has the most sunshine?
With an average of 10.4h of sunshine, June has the most sunshine of the year.
What are the months with the highest UV index?
The months with the highest UV index in Vandalia are June through August, with an average maximum UV index of 6.
What part of the year is the hottest?
The warmest time of the year is July, with temperatures averaging a high of 85.5°F (29.7°C) and a low of 67.5°F (19.7°C).
What is the least humid month?
October is the least humid month, with an average relative humidity of 71%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Vandalia, MO
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
Vandalia, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Vandalia, MO
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.6mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Vandalia, MO
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Vandalia, MO
- Average rainfall in January:
1.46" - Average rainfall in February:
1.5" - Average rainfall in March:
2.48" - Average rainfall in April:
3.03" - Average rainfall in May:
3.62" - Average rainfall in June:
3.58"
- Average rainfall in July:
2.76" - Average rainfall in August:
2.6" - Average rainfall in September:
2.28" - Average rainfall in October:
2.24" - Average rainfall in November:
1.73" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days
Vandalia, MO
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
15.2 days - Average rainfall days in August:
13.4 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
11.2 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Vandalia, MO
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Vandalia, MO
- Average snowfall days in January:
7.5 days - Average snowfall days in February:
6.4 days - Average snowfall days in March:
3.4 days - Average snowfall days in April:
0.4 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:
0.2 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
4.2 days
The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Vandalia, MO
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Vandalia, MO
- Average sunshine days in January:
18.5 days - Average sunshine days in February:
16 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
20 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (11.5 days).
Average UV index
Vandalia, MO
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Vandalia, MO
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility
Vandalia, MO
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).
Vandalia, Missouri, USA
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