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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, the same as December, is another cold winter month in Lake Saint Louis, Missouri, with temperature in the range of an average low of 23.5°F (-4.7°C) and an average high of 37.4°F (3°C). In Lake Saint Louis, the lowest average temperatures are observed in January, with a high of 37.4°F (3°C) and a low of 23.5°F (-4.7°C). Weather in January »
Weather in February
February, the last month of the winter in Lake Saint Louis, is also a wintry month, with an average temperature varying between 27°F (-2.8°C) and 41.9°F (5.5°C). Lake Saint Louis's entry into February measures an average high-temperature of a still icy 41.9°F (5.5°C), closely parallel to the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Lake Saint Louis, is a fresh month, with an average temperature ranging between min 37.9°F (3.3°C) and max 54.1°F (12.3°C). March's onset witnesses a shift in the average high-temperature, moving from an icy 41.9°F (5.5°C) in February to a cool 54.1°F (12.3°C). Weather in March »
Weather in April
April is an enjoyable spring month in Lake Saint Louis, Missouri, with an average temperature fluctuating between 47.1°F (8.4°C) and 65.5°F (18.6°C). Lake Saint Louis in April shows a temperature shift, moving from an average high of a fresh 54.1°F (12.3°C) in March to a comfortable 65.5°F (18.6°C). Weather in April »
Weather in May
May, the last month of the spring in Lake Saint Louis, is a warm month, with an average temperature ranging between min 56.7°F (13.7°C) and max 74.7°F (23.7°C). The beginning of May signals a rise in the average high-temperature, moving from a refreshing 65.5°F (18.6°C) in April to a moderately hot 74.7°F (23.7°C). Weather in May »
Weather in June
June, the first month of the summer in Lake Saint Louis, is also a moderately hot month, with an average temperature ranging between min 65.8°F (18.8°C) and max 84.6°F (29.2°C). With the onset of June, Lake Saint Louis's average high-temperature experiences a rise, moving from May's warm 74.7°F (23.7°C) to a still moderately hot 84.6°F (29.2°C). Weather in June »
Weather in July
July in Lake Saint Louis, Missouri, is a hot summer month, with temperature in the range of an average low of 68°F (20°C) and an average high of 87.1°F (30.6°C). July registers as the month with the highest average temperatures, reaching 87.1°F (30.6°C) at its peak and 68°F (20°C) at the lowest. For most parts of July, the heat index is calculated to be a sweltering 102.2°F (39°C). Weather in July »
Weather in August
August, the last month of the summer in Lake Saint Louis, is another warm month, with an average temperature fluctuating between 66°F (18.9°C) and 85.5°F (29.7°C). Lake Saint Louis greets August with an average high-temperature of a moderately hot 85.5°F (29.7°C), marking a slight deviation from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Lake Saint Louis, is also a moderately hot month, with an average temperature varying between 79.3°F (26.3°C) and 59.5°F (15.3°C). With the onset of September, Lake Saint Louis's average high-temperature slightly adjusts, moderately receding from August's 85.5°F (29.7°C) to a still moderately hot 79.3°F (26.3°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Lake Saint Louis, Missouri, with an average temperature ranging between min 48.2°F (9°C) and max 65.7°F (18.7°C). With the onset of October, Lake Saint Louis's average high-temperature adjusts, receding from September's warm 79.3°F (26.3°C) to an enjoyable 65.7°F (18.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Lake Saint Louis, Missouri, with an average temperature varying between 53.1°F (11.7°C) and 37.2°F (2.9°C). The commencement of November involves a temperature shift, with the average high-temperature dropping from a comfortable 65.7°F (18.7°C) in October to a cool 53.1°F (11.7°C). Weather in November »
Weather in December
December, the first month of the winter in Lake Saint Louis, is still a cold month, with an average temperature ranging between min 29.8°F (-1.2°C) and max 41.7°F (5.4°C). A shift in the average high-temperature occurs in December, reducing from a cool 53.1°F (11.7°C) in November to a wintry 41.7°F (5.4°C). Weather in December »
Updated: Feb 12, 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 are the coldest months in Lake Saint Louis?
In Lake Saint Louis, Missouri, the average lowest temperatures are observed in January, with a high of 37.4°F (3°C) and a low of 23.5°F (-4.7°C).
How much does it rain in Lake Saint Louis?
Throughout the year, there are 152.1 rainfall days, and 32.01" (813mm) of precipitation is accumulated.
When does it snow in Lake Saint Louis?
January through April, November and December are months with snowfall.
How much does it snow in Lake Saint Louis?
Throughout the year, in Lake Saint Louis, Missouri, there are 21.4 snowfall days, and 8.62" (219mm) of snow is accumulated.
What is the month with the least sunshine in Lake Saint Louis?
January has the least sunshine of the year in Lake Saint Louis, Missouri, with an average of 4.7h of sunshine.
When is the lowest UV index in Lake Saint Louis?
The months with the lowest UV index in Lake Saint Louis, Missouri, are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Lake Saint Louis?
The month with the least rainfall is February, when the rain falls for 8.1 days and typically collects 1.77" (45mm) of precipitation.
What is the snowiest month in Lake Saint Louis?
February is the month with the most snowfall in Lake Saint Louis. Snow falls for 6.6 days and accumulates 3.15" (80mm) of snow.
When is Daylight Saving Time (DST) in Lake Saint Louis?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lake Saint Louis, 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 wettest month in Lake Saint Louis?
April is the month with the most rainfall in Lake Saint Louis. Rain falls for 15.8 days and accumulates 3.82" (97mm) of precipitation.
What is the most humid month in Lake Saint Louis?
May is the most humid month in Lake Saint Louis, with an average relative humidity of 79%.
When it does not snow in Lake Saint Louis?
May through October are months without snowfall.
What is the month with the highest UV index in Lake Saint Louis?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Lake Saint Louis.
When are the longest days in Lake Saint Louis?
June has the longest days of the year in Lake Saint Louis, with an average of 14h and 48min of daylight.
What is the month with the most sunshine in Lake Saint Louis?
June and July, with an average of 10.5h of sunshine, are months with the most sunshine in Lake Saint Louis.
What part of the year is the hottest in Lake Saint Louis?
In Lake Saint Louis, July is known for its average highest temperatures, reaching a high of 87.1°F (30.6°C) and a low of 68°F (20°C).
What is the least humid month in Lake Saint Louis?
The least humid month is October, with an average relative humidity of 72%.
What is the month with the shortest days in Lake Saint Louis?
The month with the shortest days in Lake Saint Louis is December, with an average of 9h and 30min of daylight.
Average temperature
Lake Saint Louis, MO
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure
Lake Saint Louis, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"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:
30.12"Hg - Average pressure in December:
30.13"Hg
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
Lake Saint Louis, MO
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Lake Saint Louis, MO
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Lake Saint Louis, MO
- Average rainfall in January:
1.81" - Average rainfall in February:
1.77" - Average rainfall in March:
2.68" - Average rainfall in April:
3.82" - Average rainfall in May:
3.78" - Average rainfall in June:
3.39"
- Average rainfall in July:
2.95" - Average rainfall in August:
3.07" - Average rainfall in September:
2.13" - Average rainfall in October:
2.72" - Average rainfall in November:
1.97" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days
Lake Saint Louis, MO
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
8.1 days - Average rainfall days in March:
14.5 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
14.5 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).
Average snowfall
Lake Saint Louis, MO
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Lake Saint Louis, MO
- Average snowfall days in January:
7.3 days - Average snowfall days in February:
6.6 days - Average snowfall days in March:
1.6 days - Average snowfall days in April:
0.3 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:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Lake Saint Louis, MO
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - 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 1min - Average daylight in December:
9h and 3min
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).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 3min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 0min
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 42min).
Average sunshine days
Lake Saint Louis, MO
- Average sunshine days in January:
17 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Lake Saint Louis, 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, November and December (UV index 2).
Average cloud cover
Lake Saint Louis, MO
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Lake Saint Louis, 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).
Lake Saint Louis, Missouri, USA
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