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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, is another subzero cold winter month in Foster City, Michigan, with an average temperature varying between 10.2°F (-12.1°C) and 21°F (-6.1°C). January, on average, is the coldest month, registering a high temperature of 21°F (-6.1°C) and a low of 10.2°F (-12.1°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Foster City, Michigan, with an average temperature varying between 11.3°F (-11.5°C) and 23.9°F (-4.5°C). With the arrival of February, Foster City's average high-temperature registers at a still subzero cold 23.9°F (-4.5°C), indicating a subtle variation from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Foster City, is a cold month, with an average temperature varying between 22.1°F (-5.5°C) and 35.8°F (2.1°C). March indicates a change in the average high-temperature, moving up from a freezing cold 23.9°F (-4.5°C) in February to a wintry 35.8°F (2.1°C). Weather in March »
Weather in April
April is a frosty spring month in Foster City, Michigan, with an average temperature varying between 47.5°F (8.6°C) and 31.5°F (-0.3°C). A rise in the average high-temperature is observed during April, moving from a cold 35.8°F (2.1°C) in March to a frosty 47.5°F (8.6°C). Weather in April »
Weather in May
May, the last month of the spring in Foster City, is a refreshing month, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 42.6°F (5.9°C). Foster City experiences a noticeable temperature shift with the start of May, with average high-temperatures moving from a chilly 47.5°F (8.6°C) in April to an enjoyable 63.1°F (17.3°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Foster City, Michigan, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 50.5°F (10.3°C). With the onset of June, Foster City's weather sees a minor temperature rise, transitioning from an enjoyable 63.1°F (17.3°C) in May to an agreeable 71.4°F (21.9°C). Weather in June »
Weather in July
July is a moderately hot summer month in Foster City, Michigan, with an average temperature ranging between min 56.8°F (13.8°C) and max 77.5°F (25.3°C). In Foster City, the peak temperatures are generally noted in July, averaging a high of 77.5°F (25.3°C) and a low of 56.8°F (13.8°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Foster City, Michigan, with an average temperature varying between 75.7°F (24.3°C) and 55.9°F (13.3°C). Transitioning into August, Foster City records an average high-temperature of a still moderately hot 75.7°F (24.3°C), almost identical to July's 77.5°F (25.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a comfortable month in Foster City, Michigan, with an average temperature fluctuating between 48.6°F (9.2°C) and 67.6°F (19.8°C). With the onset of September, Foster City's climate undergoes a slight change as the average high-temperature moves from a warm 75.7°F (24.3°C) in August to a comfortable 67.6°F (19.8°C). Weather in September »
Weather in October
October, like September, in Foster City, Michigan, is another fresh autumn month, with an average temperature ranging between max 52.7°F (11.5°C) and min 39.7°F (4.3°C). October's arrival is marked by a significant decrease in the average high-temperature, moving from a comfortable 67.6°F (19.8°C) in September to a fresh 52.7°F (11.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Foster City, is also a wintry month, with an average temperature ranging between max 38.5°F (3.6°C) and min 28.8°F (-1.8°C). The onset of November entails a temperature shift, as the average high-temperature decreases from a cool 52.7°F (11.5°C) in October to a cold 38.5°F (3.6°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Foster City, Michigan, with an average temperature ranging between min 18°F (-7.8°C) and max 26.8°F (-2.9°C). The arrival of December signals a shift in temperature, down from an icy 38.5°F (3.6°C) in November to a subzero cold 26.8°F (-2.9°C). Weather in December »
Updated: Aug 15, 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 month is the coldest?
January stands out as Foster City's coldest month, with an average high-temperature of 21°F (-6.1°C) and a low-temperature of 10.2°F (-12.1°C).
What is the driest month?
January is the month with the least rainfall. Rain falls for 6.9 days and accumulates 1.14" (29mm) of precipitation.
How much does it rain?
Throughout the year, there are 137.4 rainfall days, and 22.83" (580mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
In Foster City, during the entire year, snow falls for 92.1 days and aggregates up to 41.26" (1048mm) of snow.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.
What is the most humid month?
The most humid month is February, with an average relative humidity of 90%.
When does it snow the most?
February is the month with the most snowfall in Foster City. Snow falls for 18.8 days and accumulates 9.09" (231mm) of snow.
What is the month with the least sunshine?
With an average of 2.8h of sunshine, February has the least sunshine of the year in Foster City.
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 least humid month?
May is the least humid month, with an average relative humidity of 72%.
What is the wettest month?
June is the month with the most rainfall. Rain falls for 15.3 days and accumulates 2.6" (66mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 42min of daylight.
When is the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 5.
What is the warmest month?
Temperature records mark July as the warmest month, with highs averaging 77.5°F (25.3°C) and lows at 56.8°F (13.8°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10h of sunshine.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 42min of daylight.
Average temperature
Foster City, MI
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (21°F).
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure
Foster City, MI
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Foster City, MI
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.2mph - Average wind speed in March:
7.8mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.4mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7mph - Average wind speed in October:
7.9mph - Average wind speed in November:
8.1mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Foster City, MI
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (72%).
Average rainfall
Foster City, MI
- Average rainfall in January:
1.14" - Average rainfall in February:
1.3" - Average rainfall in March:
1.42" - Average rainfall in April:
2.48" - Average rainfall in May:
2.44" - Average rainfall in June:
2.6"
- Average rainfall in July:
2.44" - Average rainfall in August:
1.89" - Average rainfall in September:
1.81" - Average rainfall in October:
2.36" - Average rainfall in November:
1.3" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is June (2.6").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days
Foster City, MI
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
8.6 days
The months with the highest number of rainy days are May, June and July (15.3 days).
The month with the least rainy days is February (5.7 days).
Average snowfall
Foster City, MI
The month with the highest snowfall is February (9.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Foster City, MI
- Average snowfall days in January:
20.8 days - Average snowfall days in February:
18.8 days - Average snowfall days in March:
14.8 days - Average snowfall days in April:
8.3 days - Average snowfall days in May:
0.8 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:
2.2 days - Average snowfall days in November:
10.3 days - Average snowfall days in December:
16.1 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Foster City, MI
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
3h and 0min - Average sunshine in February:
2h and 5min - Average sunshine in March:
4h and 4min - Average sunshine in April:
6h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 1min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 1min - Average sunshine in December:
3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days
Foster City, MI
- Average sunshine days in January:
9.2 days - Average sunshine days in February:
9.1 days - Average sunshine days in March:
11.1 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
13.2 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
15.1 days - Average sunshine days in November:
14.1 days - Average sunshine days in December:
11.9 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (9.1 days).
Average UV index
Foster City, MI
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Foster City, MI
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility
Foster City, MI
The months with the highest visibility are May, June, October and November (6mi).
The month with the lowest visibility is February (4mi).
Foster City, Michigan, USA
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