Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
In Foster City, the average high-temperature in April increases from an icy 35.8°F (2.1°C) in March to a chilly 47.5°F (8.6°C). The low-temperature averages to a freezing cold 31.5°F (-0.3°C) during the nights of April.Humidity
The average relative humidity in April is 77%.Rainfall
In Foster City, during April, the rain falls for 12.8 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, in Foster City, there are 137.4 rainfall days, and 22.83" (580mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Foster City, during April, snow falls for 8.3 days and regularly aggregates up to 6.81" (173mm) of snow. Throughout the year, there are 92.1 snowfall days, and 41.26" (1048mm) of snow is accumulated.Daylight
In Foster City, the average length of the day in April is 13h and 35min.On the first day of April, sunrise is at 6:29 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:58 pm CDT.
Sunshine
The average sunshine in April in Foster City is 6.9h.UV index
In April, the average daily maximum UV index in Foster City is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 3 in April transforms into this advice:
Be vigilant - Preventing sunburn is recommended. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What is the temperature in April in Foster City?
What is the average humidity in April in Foster City?
How many days does it rain in April in Foster City?
How many days does it snow in April in Foster City?
What is the average length of the day in April in Foster City?
When is the sunrise / sunset in April in Foster City?
How long on average sun shines in April in Foster City?
What is the UV index intensity in April in Foster City?
Average temperature in April
Foster City, MI
- Average high temperature in April: 47.5°F
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).
- Average low temperature in April: 31.5°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 in April
Foster City, MI
- Average pressure in April: 29.98"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 in April
Foster City, MI
- Average wind speed in April: 8.3mph
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 in April
Foster City, MI
- Average humidity in April: 77%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (72%).
Average rainfall in April
Foster City, MI
- Average rainfall in April: 2.48"
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 in April
Foster City, MI
- Average rainfall days in April: 12.8 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 in April
Foster City, MI
- Average snowfall in April: 6.81"
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 in April
Foster City, MI
- Average snowfall days in April: 8.3 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 in April /
Average sunshine in April
Foster City, MI
- Average daylight in April: 13h 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 April: 6h and 5min
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 in April
Foster City, MI
- Average sunshine days in April: 10.8 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 in April
Foster City, MI
- Average UV index in April: 3
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 in April
Foster City, MI
- Average cloud cover in April: 54
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 in April
Foster City, MI
- Average visibility in April: 5mi
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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