January weather forecast and climate
Mountain View, CA

A street in Mountain View Town, California, with neon-lit building, trees, and parked cars
A street in Mountain View Town, California, with neon-lit building, trees, and parked cars

Weather in January

January, the same as December, in Mountain View, California, is another mild winter month, with average temperature fluctuating between 57.7°F (14.3°C) and 44.2°F (6.8°C).

Temperature

In Mountain View, the average high-temperature is almost the same as in December - a still mild 57.7°F (14.3°C). In January, in Mountain View, the average low-temperature is 44.2°F (6.8°C).

Humidity

The average relative humidity in Mountain View is 71%.

Rainfall

In Mountain View, in January, during 6.6 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Mountain View, there are 53.1 rainfall days, and 4.41" (112mm) of precipitation is accumulated.

Daylight

In January, the average length of the day in Mountain View is 9.9h.

Sunshine

In January, the average sunshine in Mountain View is 6.3h.

UV index

The average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: In January, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in January in Mountain View?

The average high-temperature, in January, in Mountain View, is 57.7°F (14.3°C), while the average low-temperature is 44.2°F (6.8°C).

What is the average humidity in January in Mountain View?

In Mountain View, the average relative humidity in January is 71%.

How much does it rain in Mountain View in January?

In Mountain View, California, during January, the rain falls for 6.6 days and regularly aggregates up to 0.59" (15mm) of precipitation.

How many hours of daylight does Mountain View have in January?

The average length of the day in January is 9.9h.

How long on average sun shines in January in Mountain View?

In January, the average sunshine in Mountain View, California, is 6.3h.

How high is the UV index in January in Mountain View?

In Mountain View, California, the average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in January
Mountain View, CA

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).

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Average pressure in January
Mountain View, CA

Average pressure in January - Mountain View, CA
  • Average pressure in January: 30.13"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June and September (29.92").

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Average wind speed in January
Mountain View, CA

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).

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Average humidity in January
Mountain View, CA

Average humidity in January - Mountain View, CA
  • Average humidity in January: 71%

The month with the highest relative humidity is March (73%).
Months with the lowest relative humidity are July, September and October (63%).

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Average rainfall in January
Mountain View, CA

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").

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Average rainfall days in January
Mountain View, CA

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).

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Average daylight in January /
Average sunshine in January
Mountain View, CA

Average daylight in January / Average sunshine in January - Mountain View, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in January: 6.3h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days in January
Mountain View, CA

Average sunshine days in January - Mountain View, CA
  • Average sunshine days in January: 23.4 days

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).

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Average UV index in January
Mountain View, CA

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).
Months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in January
Mountain View, CA

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).

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Average visibility in January
Mountain View, CA

Average visibility in January - Mountain View, CA
  • Average visibility in January: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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