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's weather displays an average high-temperature of a still mild 57.7°F (14.3°C), slightly varied from December's 56.5°F (13.6°C). Mountain View witnesses a consistent average low-temperature of 44.2°F (6.8°C) throughout January.Humidity
In Mountain View, the average relative humidity in January is 71%.Rainfall
In January, the rain falls for 6.6 days. Throughout January, 0.59" (15mm) of precipitation is accumulated. In Mountain View, during the entire year, the rain falls for 53.1 days and collects up to 4.41" (112mm) of precipitation.Daylight
In Mountain View, the average length of the day in January is 9h and 56min.On the first day of the month, sunrise is at 7:22 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:31 pm PST.
Sunshine
In January, the average sunshine is 6.3h.UV index
In Mountain View, the average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 4 during January leads to these instructions:
Heed the precautions - It is counselled to guard against solar damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the average humidity in January in Mountain View?
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 long on average sun shines in January in Mountain View?
What is the UV index reading in January?
Average temperature in January
Mountain View, CA
- Average high temperature in January: 57.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in January: 44.2°F
The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is December (44.1°F).
Average pressure in January
Mountain View, CA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).
Average wind speed in January
Mountain View, CA
- Average wind speed in January: 4.9mph
The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.7mph).
Average humidity in January
Mountain View, CA
- Average humidity in January: 71%
The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July, September and October (63%).
Average rainfall in January
Mountain View, CA
- Average rainfall in January: 0.59"
The wettest months (with the highest rainfall) are February, March and December (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").
Average rainfall days in January
Mountain View, CA
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is March (10 days).
The month with the least rainy days is August (0.4 days).
Average daylight in January /
Average sunshine in January
Mountain View, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in January
Mountain View, CA
- Average sunshine days in January: 23.4 days
The months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is March (19.4 days).
Average UV index in January
Mountain View, CA
- Average UV index in January: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in January
Mountain View, CA
- Average cloud cover in January: 30
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in January
Mountain View, 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).
Mountain View, California, USA
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