Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January brings a marginal elevation to a still comfortable 65.1°F (18.4°C) from December's 63.1°F (17.3°C) in Foothill Ranch's average high-temperatures. In January, Foothill Ranch's temperature tends to fall to an average low of 50°F (10°C) during the night.Humidity
The average relative humidity in January is 57%.Rainfall
In January, the rain falls for 5.6 days. Throughout January, 1.3" (33mm) of precipitation is accumulated. In Foothill Ranch, California, during the entire year, the rain falls for 65.4 days and collects up to 9.17" (233mm) of precipitation.Daylight
The average length of the day in January is 10h and 13min.On the first day of January in Foothill Ranch, California, sunrise is at 6:55 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 5:20 pm PST.
Sunshine
In January, the average sunshine in Foothill Ranch, California, is 6.8h.UV index
The months with the lowest UV index in Foothill Ranch are January through March, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 4 in January interprets into the following advice:
Heed the precautions - It is counselled to guard against solar damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the usual temperature for Foothill Ranch in January?
What is the average humidity in January in Foothill Ranch?
How many days does it rain in January in Foothill Ranch?
How many hours of daylight does Foothill Ranch have in January?
When are sunrise and sunset in January in Foothill Ranch?
How long on average sun shines in January in Foothill Ranch?
What is the month with the lowest UV index in Foothill Ranch?
What is the UV index reading in January in Foothill Ranch?
Average temperature in January
Foothill Ranch, CA
- Average high temperature in January: 65.1°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in January: 50°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).
Average pressure in January
Foothill Ranch, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in January
Foothill Ranch, CA
- Average wind speed in January: 5mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest months (with the lowest average wind speed) are August and September (4.5mph).
Average humidity in January
Foothill Ranch, CA
- Average humidity in January: 57%
The months with the highest relative humidity are May and June (69%).
The month with the lowest relative humidity is November (55%).
Average rainfall in January
Foothill Ranch, CA
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in January
Foothill Ranch, CA
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is March (8.1 days).
The month with the least rainy days is June (2 days).
Average daylight in January /
Average sunshine in January
Foothill Ranch, CA
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 6h and 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in January
Foothill Ranch, CA
- Average sunshine days in January: 24.2 days
The months with the most sunshine days are January and October (24.2 days).
The month with the least sunshine days is May (19.3 days).
Average UV index in January
Foothill Ranch, CA
- Average UV index in January: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in January
Foothill Ranch, CA
- Average cloud cover in January: 22
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in January
Foothill Ranch, CA
- Average visibility in January: 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).
Foothill Ranch, California, USA
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