Contents
- Weather in February
- Frequently asked questions
- Average temperature in February
- Average pressure in February
- Average wind speed in February
- Average humidity in February
- Average rainfall in February
- Average rainfall days in February
- Average daylight in February
- Average sunshine in February
- Average sunshine days in February
- Average UV index in February
- Average cloud cover in February
- Average visibility in February
Weather in February
Temperature
February ushers in an average high-temperature of a still mild 59.5°F (15.3°C), aligning closely with the preceding month. In February, Castro Valley experiences a temperature dip to an average of 44.1°F (6.7°C) at night.Humidity
In February, the average relative humidity is 72%.Rainfall
February is the month with the most rainfall in Castro Valley. Rain falls for 8.3 days and accumulates 2.28" (58mm) of precipitation.Daylight
In February, the average length of the day in Castro Valley, California, is 10h and 50min.On the first day of February in Castro Valley, sunrise is at 7:12 am and sunset at 5:31 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:01 pm PST.
Sunshine
In February, the average sunshine is 6.3h.UV index
The months with the lowest UV index in Castro Valley are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 3 in February leads to these guidelines:
Guard yourself - Avoiding sunburn is suggested. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Castro Valley in February?
What is the average humidity in February in Castro Valley?
What is the wettest month in Castro Valley?
How much does it rain in Castro Valley in February?
How many hours of daylight does Castro Valley have in February?
When is the sunrise / sunset in February in Castro Valley?
How many hours of sunshine does Castro Valley have in February?
What is the month with the lowest UV index in Castro Valley?
What is the UV index reading in February in Castro Valley?
Average temperature in February
Castro Valley, CA
- Average high temperature in February: 59.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in February: 44.1°F
The month with the highest average low temperature is August (56.5°F).
The coldest months (with the lowest average low temperature) are January and December (43.7°F).
Average pressure in February
Castro Valley, CA
- Average pressure in February: 30.08"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in February
Castro Valley, CA
- Average wind speed in February: 5.8mph
The windiest month (with the highest average wind speed) is May (6.6mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).
Average humidity in February
Castro Valley, CA
- Average humidity in February: 72%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (61%).
Average rainfall in February
Castro Valley, CA
- Average rainfall in February: 2.28"
The wettest month (with the highest rainfall) is February (2.28").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in February
Castro Valley, CA
- Average rainfall days in February: 8.3 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (0.9 days).
Average daylight in February /
Average sunshine in February
Castro Valley, CA
- Average daylight in February: 10h and 5min
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).
- Average sunshine in February: 6h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in February
Castro Valley, CA
- Average sunshine days in February: 18.8 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in February
Castro Valley, CA
- Average UV index in February: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in February
Castro Valley, CA
- Average cloud cover in February: 31
The months with the most cloud cover are March and December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in February
Castro Valley, CA
- Average visibility in February: 6mi
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).
Castro Valley, California, USA
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