Climate and monthly weather forecast
Vandalia, MO

Weather in January

January, like December, in Vandalia, Missouri, is a wintry winter month, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 21.9°F (-5.6°C). With an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 21.9°F (-5.6°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Vandalia, Missouri, with an average temperature fluctuating between 25.3°F (-3.7°C) and 39.7°F (4.3°C). In Vandalia, the average high-temperature in February is essentially the same as in January - a still cold 39.7°F (4.3°C). Weather in February »

Weather in March

March, the first month of the spring in Vandalia, is a fresh month, with an average temperature fluctuating between 36.5°F (2.5°C) and 52.7°F (11.5°C). In Vandalia, Missouri, the average high-temperature in March increases from a cold 39.7°F (4.3°C) in February to a cool 52.7°F (11.5°C). Weather in March »

Weather in April

April is a comfortable spring month in Vandalia, Missouri, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 64°F (17.8°C). In April, the average high-temperature increases from a fresh 52.7°F (11.5°C) in March to a comfortable 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 an average temperature fluctuating between 73.2°F (22.9°C) and 55.9°F (13.3°C). In May, the average high-temperature rises from a comfortable 64°F (17.8°C) in April to an agreeable 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 ranging between max 82.9°F (28.3°C) and min 64.9°F (18.3°C). In June, the average high-temperature increases 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, like June, in Vandalia, Missouri, is another warm summer month, with an average temperature varying between 67.5°F (19.7°C) and 85.5°F (29.7°C). The warmest month is July, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 67.5°F (19.7°C). The average heat index in July is estimated at a torrid 96.8°F (36°C). Weather in July »

Weather in August

August, the last month of the summer in Vandalia, is also a moderately hot month, 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). In Vandalia, the average high-temperature in August is relatively the same as in July - a still moderately hot 84.2°F (29°C). Weather in August »

Weather in September

September, the first month of the autumn in Vandalia, is also a moderately hot month, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 58.8°F (14.9°C). In September, the average high-temperature slightly decreases from a warm 84.2°F (29°C) in August to a still moderately hot 78.3°F (25.7°C). Weather in September »

Weather in October

October, like September, in Vandalia, Missouri, is another comfortable autumn month, with an average temperature ranging between min 47.3°F (8.5°C) and max 65.1°F (18.4°C). In October, the average high-temperature decreases from a moderately hot 78.3°F (25.7°C) in September 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 also a fresh month, with an average temperature ranging between max 51.6°F (10.9°C) and min 36.3°F (2.4°C). In November, the average high-temperature drops from an enjoyable 65.1°F (18.4°C) in October 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 40.3°F (4.6°C) and 28°F (-2.2°C). In December, the average high-temperature decreases from a cool 51.6°F (10.9°C) in November to a wintry 40.3°F (4.6°C). Weather in December »
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FAQ

What is the coldest month in Vandalia?

The coldest month in Vandalia is January, with an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 21.9°F (-5.6°C).

What is the driest month in Vandalia?

The month with the least rainfall in Vandalia, Missouri, 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?

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 in Vandalia?

January through April, October through December are months with snowfall in Vandalia, Missouri.

When does it snow the most in Vandalia?

January is the month with the most snowfall in Vandalia, Missouri. Snow falls for 7.5 days and accumulates 3.7" (94mm) of snow.

How many days does it snow in Vandalia?

In Vandalia, Missouri, 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 in Vandalia?

The month with the least sunshine in Vandalia, Missouri, is January, with an average of 4.5h of sunshine.

What are the months 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) in Vandalia?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the most humid month in Vandalia?

The months with the highest humidity are May and July, with an average relative humidity of 79%.

What is the rainiest month in Vandalia?

The month with the most rainfall in Vandalia, Missouri, 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 in Vandalia?

May through September are months without snowfall.

When are the longest days in Vandalia?

June has the longest days of the year in Vandalia, Missouri, with an average of 14h and 53min of daylight.

What month has the most sunshine in Vandalia?

With an average of 10.4h of sunshine, June has the most sunshine of the year in Vandalia.

What are the months with the highest UV index in Vandalia?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in Vandalia?

With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 67.5°F (19.7°C), July is the warmest month in Vandalia, Missouri.

What is the least humid month in Vandalia?

With an average relative humidity of 71%, October is the least humid month.

What is the month with the shortest days in Vandalia?

December has the shortest days of the year in Vandalia, with an average of 9h and 27min of daylight.

Average temperature
Vandalia, MO

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).

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Average pressure
Vandalia, MO

Average pressure - Vandalia, MO

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Vandalia, MO

Average wind speed - Vandalia, MO

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).

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Average humidity
Vandalia, MO

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%).

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Average rainfall
Vandalia, MO

Average rainfall - Vandalia, MO

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days
Vandalia, MO

Average rainfall days - Vandalia, MO

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).

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Average snowfall
Vandalia, MO

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").

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Average snowfall days
Vandalia, MO

Average snowfall days - Vandalia, MO

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).

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Average daylight / Average sunshine
Vandalia, MO

Average daylight / Average sunshine - Vandalia, MO

The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 27min).

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).

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Average sunshine days
Vandalia, MO

Average sunshine days - Vandalia, MO

The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index
Vandalia, MO

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).

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Average visibility
Vandalia, MO

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).

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