Climate and monthly weather forecast
Des Peres, MO

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Weather in January

January, like December, in Des Peres, Missouri, is a wintry winter month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 37.8°F (3.2°C). The lowest temperatures are recorded in January, with averages reaching a high of 37.8°F (3.2°C) and a low of 24.3°F (-4.3°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Des Peres, Missouri, with an average temperature fluctuating between 42.3°F (5.7°C) and 27.9°F (-2.3°C). The transition from January to February sees average high-temperatures adjusting to a still cold 42.3°F (5.7°C), from a not significantly different 37.8°F (3.2°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Des Peres, Missouri, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 38.1°F (3.4°C). Noticing a change, the average high-temperature during March moves from February's wintry 42.3°F (5.7°C) to a cool 54.3°F (12.4°C). Weather in March »

Weather in April

April is a comfortable spring month in Des Peres, Missouri, with an average temperature ranging between max 65.5°F (18.6°C) and min 48°F (8.9°C). The arrival of April brings an increase in high-temperatures, moving from a fresh 54.3°F (12.4°C) in March to an enjoyable 65.5°F (18.6°C). Weather in April »

Weather in May

May, the last month of the spring in Des Peres, is a moderately hot month, with an average temperature fluctuating between 74.8°F (23.8°C) and 57.7°F (14.3°C). The beginning of May marks a shift in the average high-temperature, moving from April's comfortable 65.5°F (18.6°C) to a warm 74.8°F (23.8°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Des Peres, Missouri, with an average temperature varying between 67.1°F (19.5°C) and 84.2°F (29°C). The transition to June introduces an increase in the average high-temperature, shifting from a moderately hot 74.8°F (23.8°C) in May to a still warm 84.2°F (29°C). Weather in June »

Weather in July

July is a hot summer month in Des Peres, Missouri, with an average temperature fluctuating between 86.9°F (30.5°C) and 69.1°F (20.6°C). July, recognised by an average high temperature of 86.9°F (30.5°C) and a low of 69.1°F (20.6°C), is Des Peres's warmest month. July's heat index is calculated to be a torrid 100.4°F (38°C). Weather in July »

Weather in August

August, the last month of the summer in Des Peres, is also a moderately hot month, with an average temperature varying between 85.5°F (29.7°C) and 67.1°F (19.5°C). As Des Peres, Missouri, welcomes August, the average high-temperature stabilizes at a warm 85.5°F (29.7°C), showing little deviation from July's 86.9°F (30.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Des Peres, is still a warm month, with an average temperature varying between 60.1°F (15.6°C) and 79.7°F (26.5°C). September indicates a minor shift in the average high-temperature, from August's moderately hot 85.5°F (29.7°C) to a still warm 79.7°F (26.5°C). Weather in September »

Weather in October

October, like September, in Des Peres, Missouri, is another enjoyable autumn month, with an average temperature varying between 66.4°F (19.1°C) and 49.5°F (9.7°C). The shift from September to October involves a decrease in the average high-temperature, dropping from a moderately hot 79.7°F (26.5°C) to a comfortable 66.4°F (19.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Des Peres, Missouri, with an average temperature ranging between max 53.4°F (11.9°C) and min 38.1°F (3.4°C). As October transitions into November, Des Peres sees a drop in the average high-temperature, transitioning from an enjoyable 66.4°F (19.1°C) to a cool 53.4°F (11.9°C). Weather in November »

Weather in December

December, the first month of the winter in Des Peres, is also an icy month, with an average temperature varying between 42.6°F (5.9°C) and 30.6°F (-0.8°C). The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a fresh 53.4°F (11.9°C) in November to a cold 42.6°F (5.9°C). Weather in December »
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, recording an average high temperature of 37.8°F (3.2°C) and a low temperature of 24.3°F (-4.3°C), is Des Peres's coldest month.

How much does it rain?

Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through March, November and December.

How many days does it snow?

Throughout the year, there are 16.2 snowfall days, and 8.19" (208mm) of snow is accumulated.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.6h of sunshine.

What are the months with the lowest UV index?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the driest month?

The month with the least rainfall is February, when the rain falls for 7.6 days and typically collects 1.69" (43mm) of precipitation.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 5.2 days and accumulates 2.6" (66mm) of snow.

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.

When it does not snow?

In Des Peres, snow does not fall in April through October.

What is the most humid month?

May is the most humid month, with an average relative humidity of 78%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.58" (91mm) of precipitation.

What is the month with the highest UV index?

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

When are the longest days?

With an average of 14h and 48min of daylight, June has the longest days of the year.

What are the months with the most sunshine?

The months with the most sunshine are June and July, with an average of 10.5h of sunshine.

What are the warmest months?

In Des Peres, July registers the highest temperatures, averaging 86.9°F (30.5°C) at the peak and 69.1°F (20.6°C) at the lowest.

What is the least humid month?

The least humid month is October, with an average relative humidity of 70%.

What is the month with the shortest days?

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

Average temperature
Des Peres, MO

Average temperature - Des Peres, MO

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure
Des Peres, MO

Average pressure - Des Peres, MO

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Des Peres, MO

Average wind speed - Des Peres, MO

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity
Des Peres, MO

Average humidity - Des Peres, MO

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall
Des Peres, MO

Average rainfall - Des Peres, MO

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days
Des Peres, MO

Average rainfall days - Des Peres, MO

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

Average snowfall
Des Peres, MO

Average snowfall - Des Peres, MO

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Des Peres, MO

Average snowfall days - Des Peres, MO

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight / Average sunshine
Des Peres, MO

Average daylight / Average sunshine - Des Peres, MO

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days
Des Peres, MO

Average sunshine days - Des Peres, MO

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

Average UV index
Des Peres, MO

Average UV index - Des Peres, MO

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 and December (UV index 2).

Average visibility
Des Peres, MO

Average visibility - Des Peres, 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).

Des Peres, Missouri, USA

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