Climate and monthly weather forecast
Saint Louis, VA

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Weather in January

January, the same as December, is another cold winter month in Saint Louis, Virginia, with an average temperature fluctuating between 38.7°F (3.7°C) and 24.8°F (-4°C). Saint Louis witnesses the coldest weather in January, with temperatures averaging a high of 38.7°F (3.7°C) and a low of 24.8°F (-4°C). Weather in January »

Weather in February

February, the last month of the winter in Saint Louis, is a frosty month, with an average temperature ranging between min 27.9°F (-2.3°C) and max 43.2°F (6.2°C). Saint Louis, Virginia, commences February with an average high-temperature of a chilly 43.2°F (6.2°C), maintaining a close resemblance to the previous month. Weather in February »

Weather in March

March, the first month of the spring in Saint Louis, is a fresh month, with an average temperature fluctuating between 51.6°F (10.9°C) and 34.3°F (1.3°C). March witnesses a minor rise in the average high-temperature, transitioning from a frosty 43.2°F (6.2°C) in February to a fresh 51.6°F (10.9°C). Weather in March »

Weather in April

April in Saint Louis, Virginia, is a refreshing spring month, with an average temperature ranging between min 43.5°F (6.4°C) and max 64°F (17.8°C). April's arrival signals a temperature shift, moving from a cool 51.6°F (10.9°C) in March to an enjoyable 64°F (17.8°C). Weather in April »

Weather in May

May, the last month of the spring in Saint Louis, is a moderately hot month, with an average temperature varying between 73.8°F (23.2°C) and 54°F (12.2°C). May's arrival brings a temperature shift, moving from a refreshing 64°F (17.8°C) in April to a moderately hot 73.8°F (23.2°C). Weather in May »

Weather in June

June, the first month of the summer in Saint Louis, is also a moderately hot month, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 61°F (16.1°C). June sees a marginal temperature increase, moving from 73.8°F (23.2°C) in May to a still moderately hot 82°F (27.8°C). Weather in June »

Weather in July

July in Saint Louis, Virginia, is a hot summer month, with temperature in the range of an average low of 65.5°F (18.6°C) and an average high of 86.5°F (30.3°C). With an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 65.5°F (18.6°C), July is the warmest month. The heat index value for July is appraised at a fiery hot 98.6°F (37°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Saint Louis, Virginia, with an average temperature varying between 64°F (17.8°C) and 84.6°F (29.2°C). Saint Louis, Virginia, registers an average high-temperature of a moderately hot 84.6°F (29.2°C) at the commencement of August, closely related to the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Saint Louis, Virginia, with an average temperature fluctuating between 58.3°F (14.6°C) and 77.4°F (25.2°C). The onset of September results in a small decrease in the average high-temperature, moderately receding from a moderately hot 84.6°F (29.2°C) in August to a still warm 77.4°F (25.2°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Saint Louis, Virginia, with an average temperature varying between 65.3°F (18.5°C) and 47.3°F (8.5°C). The onset of October results in a decrease in the average high-temperature, receding from a warm 77.4°F (25.2°C) in September to a comfortable 65.3°F (18.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Saint Louis, is also a fresh month, with an average temperature fluctuating between 52.5°F (11.4°C) and 36.5°F (2.5°C). November brings a drop in Saint Louis's average high-temperature, falling from a comfortable 65.3°F (18.5°C) in October to a fresh 52.5°F (11.4°C). Weather in November »

Weather in December

December, the first month of the winter in Saint Louis, is still a chilly month, with an average temperature ranging between min 30.9°F (-0.6°C) and max 43.7°F (6.5°C). December reveals a small adjustment in temperature, transitioning from an average high of a fresh 52.5°F (11.4°C) in November to a frosty 43.7°F (6.5°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Saint Louis?

The month of January sees the average lowest temperatures in Saint Louis, Virginia, reaching 38.7°F (3.7°C) at the peak and 24.8°F (-4°C) at the low.

How much does it rain in Saint Louis?

Throughout the year, in Saint Louis, there are 162.2 rainfall days, and 31.1" (790mm) of precipitation is accumulated.

When does it snow in Saint Louis?

January through April, October through December are months with snowfall in Saint Louis.

When does it snow the most in Saint Louis?

The month with the most snowfall is January, when snow falls for 6.8 days and typically aggregates up to 4.17" (106mm) of snow.

How much does it snow in Saint Louis?

In Saint Louis, during the entire year, snow falls for 21.9 days and aggregates up to 14.88" (378mm) of snow.

What is the month with the least sunshine in Saint Louis?

January and December, with an average of 5.1h of sunshine, are months with the least sunshine in Saint Louis, Virginia.

What is the month with the lowest UV index in Saint Louis?

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 Saint Louis?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Saint Louis, 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.

What is the wettest month in Saint Louis?

The wettest months in Saint Louis are May and August, with an average 3.35" (85mm) of rainfall.

When it does not snow in Saint Louis?

In Saint Louis, snow does not fall in May through September.

When is the highest UV index in Saint Louis?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Louis, Virginia.

When are the longest days in Saint Louis?

With an average of 14h and 54min of daylight, June has the longest days of the year in Saint Louis.

What is the hottest time of year in Saint Louis?

July is the warmest month, with the temperature often reaching an average high of 86.5°F (30.3°C) and an average low of 65.5°F (18.6°C).

What is the least humid month in Saint Louis?

July is the least humid month in Saint Louis, Virginia, with an average relative humidity of 73%.

What month has the most sunshine in Saint Louis?

July has the most sunshine of the year in Saint Louis, Virginia, with an average of 10.8h of sunshine.

What is the driest month in Saint Louis?

The month with the least rainfall is September, when the rain falls for 13.7 days and typically collects 1.93" (49mm) of precipitation.

What is the most humid month in Saint Louis?

The months with the highest humidity in Saint Louis are October and December, with an average relative humidity of 78%.

What is the month with the shortest days in Saint Louis?

The month with the shortest days in Saint Louis, Virginia, is December, with an average of 9h and 30min of daylight.

Average temperature
Saint Louis, VA

Average temperature - Saint Louis, VA

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.7°F).

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure
Saint Louis, VA

Average pressure - Saint Louis, VA

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
Saint Louis, VA

Average wind speed - Saint Louis, VA

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity
Saint Louis, VA

Average humidity - Saint Louis, VA

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (73%).

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Average rainfall
Saint Louis, VA

Average rainfall - Saint Louis, VA

The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days
Saint Louis, VA

Average rainfall days - Saint Louis, VA

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).

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Average snowfall
Saint Louis, VA

Average snowfall - Saint Louis, VA

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Saint Louis, VA

Average snowfall days - Saint Louis, VA

The month with the highest number of snowfall days is January (6.8 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
Saint Louis, VA

Average daylight / Average sunshine - Saint Louis, VA

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).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

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Average sunshine days
Saint Louis, VA

Average sunshine days - Saint Louis, VA

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index
Saint Louis, VA

Average UV index - Saint Louis, VA

The months with the highest UV index are May, 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
Saint Louis, VA

Average visibility - Saint Louis, VA

The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).

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Saint Louis, Virginia, USA

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