January weather forecast
Pleasant Hill, CA

Weather in January

January, like December, is a moderate winter month in Pleasant Hill, California, with average temperature fluctuating between 56.8°F (13.8°C) and 42.3°F (5.7°C).

Temperature

In Pleasant Hill, California, the average high-temperature in January is practically the same as in December - a still moderate 56.8°F (13.8°C). In Pleasant Hill, in January, the average low-temperature is 42.3°F (5.7°C).

Humidity

Months with the highest humidity are January and March, with an average relative humidity of 73%.

Rainfall

In Pleasant Hill, during 6.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Pleasant Hill, California, during the entire year, the rain falls for 49.3 days and collects up to 3.82" (97mm) of precipitation.

Daylight

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

Sunshine

In January, the average sunshine in Pleasant Hill is 5.9h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Pleasant Hill. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 are the most humid months in Pleasant Hill?

Months with the highest humidity in Pleasant Hill, California, are January and March, with an average relative humidity of 73%.

What is the average humidity in January in Pleasant Hill?

In Pleasant Hill, the average relative humidity in January is 73%.

How many days does it rain in January in Pleasant Hill?

In Pleasant Hill, California, during January, the rain falls for 6.5 days and regularly aggregates up to 0.67" (17mm) of precipitation.

What is the average length of the day in January in Pleasant Hill?

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

How long on average sun shines in January in Pleasant Hill?

In January, the average sunshine in Pleasant Hill, California, is 5.9h.

What is the month with the lowest UV index in Pleasant Hill?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the UV index intensity in January in Pleasant Hill?

In Pleasant Hill, California, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in January
Pleasant Hill, CA

Average temperature in January - Pleasant Hill, CA
  • Average high temperature in January: 56.8°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in January: 42.3°F

The month with the highest average low temperature is September (57.4°F).
The coldest month (with the lowest average low temperature) is January (42.3°F).

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Average pressure in January
Pleasant Hill, CA

Average pressure in January - Pleasant Hill, CA
  • Average pressure in January: 30.14"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in January
Pleasant Hill, CA

Average wind speed in January - Pleasant Hill, CA
  • Average wind speed in January: 4.7mph

The windiest month (with the highest average wind speed) is May (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

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Average humidity in January
Pleasant Hill, CA

Average humidity in January - Pleasant Hill, CA
  • Average humidity in January: 73%

Months with the highest relative humidity are January and March (73%).
The month with the lowest relative humidity is September (56%).

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Average rainfall in January
Pleasant Hill, CA

Average rainfall in January - Pleasant Hill, CA
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in January
Pleasant Hill, CA

Average rainfall days in January - Pleasant Hill, CA
  • Average rainfall days in January: 6.5 days

The month with the highest number of rainy days is March (9.8 days).
The month with the least rainy days is August (0.5 days).

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Average daylight in January /
Average sunshine in January
Pleasant Hill, CA

Average daylight in January / Average sunshine in January - Pleasant Hill, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in January: 5.9h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in January
Pleasant Hill, CA

Average sunshine days in January - Pleasant Hill, CA
  • Average sunshine days in January: 23.3 days

The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is March (20 days).

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Average UV index in January
Pleasant Hill, CA

Average UV index in January - Pleasant Hill, CA
  • Average UV index in January: 3

Months with the highest UV index are June and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in January
Pleasant Hill, CA

Average cloud cover in January - Pleasant Hill, CA
  • Average cloud cover in January: 35

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in January
Pleasant Hill, CA

Average visibility in January - Pleasant Hill, 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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