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 denotes a minimal variation in the average high-temperature to a refreshing 57°F (13.9°C) from December's 55°F (12.8°C). Throughout the month of January, Pleasanton witnesses an average temperature of 41.5°F (5.3°C).Humidity
The average relative humidity in January is 73%.Rainfall
In January, the rain falls for 9.3 days. Throughout January, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 70.2 rainfall days, and 10.98" (279mm) of precipitation is accumulated.Daylight
In Pleasanton, the average length of the day in January is 9h and 55min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:29 pm PST.
Sunshine
The average sunshine in January is 6.3h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 in January interprets into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in January?
What is the average humidity in January?
How much does it rain in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Pleasanton have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Pleasanton, CA
- Average high temperature in January: 57°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in January: 41.5°F
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in January
Pleasanton, CA
- Average pressure in January: 30.14"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 January
Pleasanton, CA
- Average wind speed in January: 4.3mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in January
Pleasanton, CA
- Average humidity in January: 73%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (56%).
Average rainfall in January
Pleasanton, CA
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is February (2.05").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Pleasanton, CA
- Average rainfall days in January: 9.3 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 January /
Average sunshine in January
Pleasanton, CA
- Average daylight in January: 9h 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 January: 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: 6h and 0min).
Average sunshine days in January
Pleasanton, CA
- Average sunshine days in January: 20.8 days
The month with the most sunshine days is August (29 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in January
Pleasanton, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Pleasanton, CA
- Average cloud cover in January: 31
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in January
Pleasanton, 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).
Pleasanton, California, USA
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