January weather forecast and climate
Granite Bay, CA

Weather in January

January in Granite Bay, California, is a mild winter month, with average temperature ranging between min 40.1°F (4.5°C) and max 55.9°F (13.3°C).

Temperature

In January, the average high-temperature is relatively the same as in December - a mild 55.9°F (13.3°C). In Granite Bay, the average low-temperature is 40.1°F (4.5°C).

Humidity

In Granite Bay, the average relative humidity is 71%.

Rainfall

In Granite Bay, it is raining for 9.9 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, there are 81.2 rainfall days, and 22.64" (575mm) of precipitation is accumulated.

Snowfall

In Granite Bay snow does not fall, March through November.

Daylight

In January, the average length of the day is 9.8h.

Sunshine

The average sunshine in Granite Bay is 6h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 3 in January interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in January in Granite Bay?

The average high-temperature, in January, in Granite Bay, California, is 55.9°F (13.3°C), while the average low-temperature is 40.1°F (4.5°C).

What is the average humidity in January in Granite Bay?

In Granite Bay, the average relative humidity in January is 71%.

How many days does it rain in January in Granite Bay?

In Granite Bay, California, during January, the rain falls for 9.9 days and regularly aggregates up to 3.35" (85mm) of precipitation.

Does it snow in Granite Bay in January?

In January, in Granite Bay, it doesn't snow. December is the latest month when it typically snows.

When it does not snow in Granite Bay?

In Granite Bay, California, snow does not fall in January, March through November.

How many hours of daylight does Granite Bay have in January?

In Granite Bay, the average length of the day in January is 9.8h.

How many hours of sunshine does Granite Bay have in January?

In January, the average sunshine in Granite Bay, California, is 6h.

When is the lowest UV index in Granite Bay?

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 Granite Bay?

In January, the average daily maximum UV index in Granite Bay is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in January
Granite Bay, CA

Average temperature in January - Granite Bay, CA
  • Average high temperature in January: 55.9°F

The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (54°F).

  • Average low temperature in January: 40.1°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).

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Average pressure in January
Granite Bay, CA

Average pressure in January - Granite Bay, CA
  • Average pressure in January: 30.16"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in January
Granite Bay, CA

Average wind speed in January - Granite Bay, CA
  • Average wind speed in January: 4.7mph

The windiest month (with the highest average wind speed) is February (5.5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).

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Average humidity in January
Granite Bay, CA

Average humidity in January - Granite Bay, CA
  • Average humidity in January: 71%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).

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Average rainfall in January
Granite Bay, CA

Average rainfall in January - Granite Bay, CA
  • Average rainfall in January: 3.35"

The wettest month (with the highest rainfall) is March (4.33").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in January
Granite Bay, CA

Average rainfall days in January - Granite Bay, CA
  • Average rainfall days in January: 9.9 days

The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is July (1 days).

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Average snowfall in January
Granite Bay, CA

Average snowfall in January - Granite Bay, CA
  • Average snowfall in January: 0"

Months with the highest snowfall are February and December (0.04").
Months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
Granite Bay, CA

Average snowfall days in January - Granite Bay, CA
  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is December (0.2 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in January /
Average sunshine in January
Granite Bay, CA

Average daylight in January / Average sunshine in January - Granite Bay, CA
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 6h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in January
Granite Bay, CA

Average sunshine days in January - Granite Bay, CA
  • Average sunshine days in January: 20.1 days

The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is March (15.7 days).

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Average UV index in January
Granite Bay, CA

Average UV index in January - Granite Bay, CA
  • Average UV index in January: 3

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in January
Granite Bay, CA

Average cloud cover in January - Granite Bay, CA
  • Average cloud cover in January: 33

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in January
Granite Bay, CA

Average visibility in January - Granite Bay, 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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