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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, like December, in Foster, Missouri, is another cold winter month, with an average temperature fluctuating between 25.2°F (-3.8°C) and 39.9°F (4.4°C). With average high temperatures of 39.9°F (4.4°C) and lows of 25.2°F (-3.8°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Foster, is a chilly month, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 28.9°F (-1.7°C). Foster experiences a transition to a frosty 44.2°F (6.8°C) in average high-temperatures with the arrival of February, not greatly differing from January's 39.9°F (4.4°C). Weather in February »
Weather in March
March, the first month of the spring in Foster, is a mild month, with an average temperature varying between 56.3°F (13.5°C) and 39.4°F (4.1°C). March brings an increase in the average high-temperature, progressing from a frosty 44.2°F (6.8°C) in February to a moderate 56.3°F (13.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in Foster, Missouri, with an average temperature fluctuating between 47.1°F (8.4°C) and 65.5°F (18.6°C). Foster, Missouri, in April shows a temperature shift, moving from an average high of a mild 56.3°F (13.5°C) in March to a still refreshing 65.5°F (18.6°C). Weather in April »
Weather in May
May, the last month of the spring in Foster, is a warm month, with an average temperature fluctuating between 56.3°F (13.5°C) and 73.8°F (23.2°C). A minor escalation in the average high-temperature is seen with the onset of May, moving from an enjoyable 65.5°F (18.6°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 Foster, is also a moderately hot month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 84.4°F (29.1°C). As June sets, the average high-temperature shows an increase, moving up from a moderately hot 73.8°F (23.2°C) in May to a still warm 84.4°F (29.1°C). Weather in June »
Weather in July
July in Foster, Missouri, is a tropical summer month, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 68.9°F (20.5°C). July, recognised by an average high temperature of 87.4°F (30.8°C) and a low of 68.9°F (20.5°C), is Foster's warmest month. In July, the average heat index is estimated at a torrid 102.2°F (39°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Foster, Missouri, with an average temperature varying between 66.7°F (19.3°C) and 85.6°F (29.8°C). The arrival of August brings an average high-temperature of a warm 85.6°F (29.8°C), nearly identical to July's 87.4°F (30.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Foster, Missouri, with an average temperature varying between 60.3°F (15.7°C) and 79°F (26.1°C). The average high-temperature shows a slight dip in September, from August's 85.6°F (29.8°C) to a still warm 79°F (26.1°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Foster, Missouri, with an average temperature varying between 48.9°F (9.4°C) and 66.6°F (19.2°C). Foster's progression into October involves a drop in the average high-temperature, receding from a warm 79°F (26.1°C) in September to a comfortable 66.6°F (19.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Foster, Missouri, with an average temperature varying between 54.5°F (12.5°C) and 38.3°F (3.5°C). Foster's progression into November involves a drop in the average high-temperature, receding from a comfortable 66.6°F (19.2°C) in October to a cool 54.5°F (12.5°C). Weather in November »
Weather in December
December, the first month of the winter in Foster, is still a chilly month, with an average temperature varying between 43.7°F (6.5°C) and 29.5°F (-1.4°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a fresh 54.5°F (12.5°C) to a frosty 43.7°F (6.5°C). Weather in December »
Updated: Aug 28, 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 is the coldest month in Foster?
The coldest month is January, with an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 25.2°F (-3.8°C).
What is the driest month?
January is the month with the least rainfall. Rain falls for 5 days and accumulates 0.79" (20mm) of precipitation.
How many days does it rain?
In Foster, during the entire year, the rain falls for 130.6 days and collects up to 25.43" (646mm) of precipitation.
When does it snow?
Months with snowfall are January through March, May, October through December.
How many days does it snow?
Throughout the year, there are 12.2 snowfall days, and 4.29" (109mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 5.3h of sunshine.
When is the lowest UV index in Foster?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 4 days and typically aggregates up to 1.69" (43mm) 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?
April, June through September are months without snowfall.
What is the most humid month?
May is the most humid month, with an average relative humidity of 81%.
What is the wettest month?
May is the month with the most rainfall. Rain falls for 16.8 days and accumulates 4.49" (114mm) of precipitation.
When are the longest days in Foster?
With an average of 14h and 48min of daylight, June has the longest days of the year.
When is the highest UV index?
The month with the highest UV index is June, with an average maximum UV index of 7.
What month is the hottest?
Foster's temperatures peak on average in July, reaching 87.4°F (30.8°C) at their highest and 68.9°F (20.5°C) at their lowest.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.6h of sunshine.
What is the least humid month?
With an average relative humidity of 71%, October is the least humid month.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Foster, MO
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
Foster, MO
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Foster, MO
- Average wind speed in January:
9.9mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.5mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Foster, MO
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Foster, MO
- Average rainfall in January:
0.79" - Average rainfall in February:
1.02" - Average rainfall in March:
2.17" - Average rainfall in April:
2.91" - Average rainfall in May:
4.49" - Average rainfall in June:
2.05"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days
Foster, MO
- Average rainfall days in January:
5 days - Average rainfall days in February:
6.6 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
14.2 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
12.9 days - Average rainfall days in September:
12 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5 days).
Average snowfall
Foster, MO
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days
Foster, MO
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
4 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0.1 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:
0.7 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Foster, 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 3min - 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 4min
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 36min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 2min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days
Foster, MO
- Average sunshine days in January:
22.7 days - Average sunshine days in February:
17.4 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
20 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is May (12.2 days).
Average UV index
Foster, MO
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Foster, MO
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility
Foster, 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).
Foster, Missouri, USA
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