January weather forecast
Pittsburg, CA

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Weather in January

January in Pittsburg, California, is a refreshing winter month, with an average temperature ranging between max 56.1°F (13.4°C) and min 41.5°F (5.3°C).

Temperature

Pittsburg's shift from December to January is accompanied by an average high-temperature of a refreshing 56.1°F (13.4°C), a slight deviation from 55.2°F (12.9°C). In Pittsburg, the average low-temperature during the month of January is a wintry 41.5°F (5.3°C).

Humidity

January and March, with an average relative humidity of 73%, are the most humid months in Pittsburg.

Rainfall

In Pittsburg, during January, the rain falls for 8.9 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Pittsburg, during the entire year, the rain falls for 66.9 days and collects up to 10.39" (264mm) of precipitation.

Daylight

In January, the average length of the day in Pittsburg is 9h and 53min.
On the first day of January in Pittsburg, sunrise is at 7:23 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:29 pm PST.

Sunshine

The average sunshine in January in Pittsburg is 5.9h.

UV index

The months with the lowest UV index in Pittsburg are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 3 during January leads to these advisories:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What are January temperatures in Pittsburg?

The high-temperature, in January, in Pittsburg, is 56.1°F (13.4°C), while the low-temperature averages to 41.5°F (5.3°C).

What are the most humid months in Pittsburg?

January and March, with an average relative humidity of 73%, are most humid months in Pittsburg.

What is the average humidity in January in Pittsburg?

In January, the average relative humidity is 73%.

How much does it rain in Pittsburg in January?

In Pittsburg, California, during January, the rain falls for 8.9 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How many hours of daylight does Pittsburg have in January?

The average day length in January in Pittsburg, California, is 9h and 53min.

When are sunrise and sunset in January in Pittsburg?

On the first day of January, sunrise is at 7:23 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:29 pm PST.

How long on average sun shines in January in Pittsburg?

In January, the average sunshine duration is 5.9h.

What is the month with the lowest UV index in Pittsburg?

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

What is the UV index intensity in January in Pittsburg?

In Pittsburg, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Pittsburg, CA

Average temperature in January - Pittsburg, CA
  • Average high temperature in January: 56.1°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in January: 41.5°F

The months with the highest average low temperature are August and September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in January
Pittsburg, CA

Average pressure in January - Pittsburg, CA
  • Average pressure in January: 30.14"Hg

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

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Average wind speed in January
Pittsburg, CA

Average wind speed in January - Pittsburg, CA
  • Average wind speed in January: 4.5mph

The windiest months (with the highest average wind speed) are May and June (7.6mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

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Average humidity in January
Pittsburg, CA

Average humidity in January - Pittsburg, CA
  • Average humidity in January: 73%

The months with the highest relative humidity are January and March (73%).
The month with the lowest relative humidity is September (53%).

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Average rainfall in January
Pittsburg, CA

Average rainfall in January - Pittsburg, CA
  • Average rainfall in January: 1.73"

The wettest month (with the highest rainfall) is February (2.01").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in January
Pittsburg, CA

Average rainfall days in January - Pittsburg, CA
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is August (0.9 days).

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Average daylight in January /
Average sunshine in January
Pittsburg, CA

Average daylight in January / Average sunshine in January - Pittsburg, CA
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 5h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in January
Pittsburg, CA

Average sunshine days in January - Pittsburg, CA
  • Average sunshine days in January: 21.1 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.5 days).

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Average UV index in January
Pittsburg, CA

Average UV index in January - Pittsburg, 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).

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Average cloud cover in January
Pittsburg, CA

Average cloud cover in January - Pittsburg, CA
  • Average cloud cover in January: 35

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 5).

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Average visibility in January
Pittsburg, CA

Average visibility in January - Pittsburg, 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).

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Pittsburg, California, USA

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