Climate and monthly weather forecast
Saint Robert, MO

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Weather in January

January, the same as December, is an icy winter month in Saint Robert, Missouri, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 40.3°F (4.6°C). January, with average temperatures reaching a high of 40.3°F (4.6°C) and a low of 25°F (-3.9°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Saint Robert, is a frosty month, with an average temperature ranging between max 44.4°F (6.9°C) and min 28.4°F (-2°C). An average high-temperature of a chilly 44.4°F (6.9°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »

Weather in March

March, the first month of the spring in Saint Robert, is a refreshing month, with an average temperature varying between 55.9°F (13.3°C) and 38.1°F (3.4°C). Saint Robert's transition into March brings a rise in the average high-temperature, moving from a frosty 44.4°F (6.9°C) in February to a moderate 55.9°F (13.3°C). Weather in March »

Weather in April

April is an enjoyable spring month in Saint Robert, Missouri, with an average temperature varying between 47.3°F (8.5°C) and 66.6°F (19.2°C). April indicates a change in the average high-temperature, moving up from a refreshing 55.9°F (13.3°C) in March to a comfortable 66.6°F (19.2°C). Weather in April »

Weather in May

May, the last month of the spring in Saint Robert, is a moderately hot month, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 55.9°F (13.3°C). May's arrival coincides with a rise in the average high-temperature, moving from April's refreshing 66.6°F (19.2°C) to a moderately hot 75.7°F (24.3°C). Weather in May »

Weather in June

June, the first month of the summer in Saint Robert, is a tropical month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 86.5°F (30.3°C). Saint Robert's transition into June is marked by a rise in the average high-temperature, advancing from a moderately hot 75.7°F (24.3°C) in May to a hot 86.5°F (30.3°C). Weather in June »

Weather in July

July, like June, is another hot summer month in Saint Robert, Missouri, with temperature in the range of an average low of 67.8°F (19.9°C) and an average high of 89.2°F (31.8°C). Saint Robert's warmest month, July, registers temperatures that range from a high of 89.2°F (31.8°C) to a low of 67.8°F (19.9°C). The average heat index in July is calculated to be a blistering 105.8°F (41°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Saint Robert, Missouri, with an average temperature ranging between max 87.3°F (30.7°C) and min 65.8°F (18.8°C). The arrival of August brings an average high-temperature of a still hot 87.3°F (30.7°C), closely following the temperature pattern of July. Weather in August »

Weather in September

September, the first month of the autumn in Saint Robert, is also a moderately hot month, with an average temperature ranging between max 80.4°F (26.9°C) and min 59.4°F (15.2°C). September implies a soft temperature shift, with average high-temperatures reducing from August's hot 87.3°F (30.7°C) to a warm 80.4°F (26.9°C). Weather in September »

Weather in October

October, like September, in Saint Robert, Missouri, is another comfortable autumn month, with an average temperature fluctuating between 66.6°F (19.2°C) and 48°F (8.9°C). As September transitions into October, Saint Robert sees a drop in the average high-temperature, transitioning from a warm 80.4°F (26.9°C) to a refreshing 66.6°F (19.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Saint Robert, is also a fresh month, with an average temperature fluctuating between 37.6°F (3.1°C) and 54.3°F (12.4°C). With November's arrival, Saint Robert sees a decrease in average high-temperatures, moving from an enjoyable 66.6°F (19.2°C) in October to a fresh 54.3°F (12.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Saint Robert, Missouri, with an average temperature varying between 29.7°F (-1.3°C) and 43.7°F (6.5°C). The shift to December brings a decrease in the average high-temperature, falling from a cool 54.3°F (12.4°C) in November to a frosty 43.7°F (6.5°C). Weather in December »
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Saint Robert's January weather, with an average high temperature of 40.3°F (4.6°C) and an average low temperature of 25°F (-3.9°C), tends to be the coldest of the year.

What is the driest month?

January is the month with the least rainfall. Rain falls for 7.6 days and accumulates 1.61" (41mm) of precipitation.

How many days does it rain?

Throughout the year, there are 147.7 rainfall days, and 31.46" (799mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

How much does it snow?

Throughout the year, there are 23.8 snowfall days, and 10.12" (257mm) of snow is accumulated.

What are the months with the least sunshine?

January and February, with an average of 4.9h of sunshine, are months with the least sunshine.

What are the months with the lowest UV index?

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

What is the snowiest month?

The month with the most snowfall is February, when snow falls for 7.3 days and typically aggregates up to 3.54" (90mm) of snow.

What is the most humid month?

March and May, with an average relative humidity of 77%, are most humid months.

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 is the rainiest month?

May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 4.29" (109mm) of precipitation.

What are the months 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 it does not snow?

June through September are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 14h and 42min of daylight.

What month has the most sunshine?

June has the most sunshine of the year, with an average of 10.6h of sunshine.

What is the hottest time of year?

Saint Robert reaches its average highest temperatures in July, measuring 89.2°F (31.8°C) at the peak and 67.8°F (19.9°C) at the lowest.

What is the least humid month?

August through October, with an average relative humidity of 73%, are the least humid months.

What is the month with the shortest days?

With an average of 9h and 36min of daylight, December has the shortest days of the year.

Average temperature
Saint Robert, MO

Average temperature - Saint Robert, MO

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (40.3°F).

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure
Saint Robert, MO

Average pressure - Saint Robert, MO

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Saint Robert, MO

Average wind speed - Saint Robert, MO

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity
Saint Robert, MO

Average humidity - Saint Robert, MO

The months with the highest relative humidity are March and May (77%).
The months with the lowest relative humidity are August, September and October (73%).

Average rainfall
Saint Robert, MO

Average rainfall - Saint Robert, MO

The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (1.61").

Average rainfall days
Saint Robert, MO

Average rainfall days - Saint Robert, MO

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (7.5 days).

Average snowfall
Saint Robert, MO

Average snowfall - Saint Robert, MO

The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Saint Robert, MO

Average snowfall days - Saint Robert, MO

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Saint Robert, MO

Average daylight / Average sunshine - Saint Robert, MO

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).

Average sunshine days
Saint Robert, MO

Average sunshine days - Saint Robert, MO

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (11.7 days).

Average UV index
Saint Robert, MO

Average UV index - Saint Robert, 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
Saint Robert, MO

Average visibility - Saint Robert, MO

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

Saint Robert, Missouri, USA

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