January weather forecast and climate
Bostonia, CA

Weather in January

January, like December, in Bostonia, California, is another enjoyable winter month, with average temperature ranging between min 48.4°F (9.1°C) and max 65.8°F (18.8°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still comfortable 65.8°F (18.8°C). In Bostonia, California, the average low-temperature is 48.4°F (9.1°C).

Humidity

In January, the average relative humidity is 55%.

Rainfall

In Bostonia, it is raining for 5.2 days, with typically 1.1" (28mm) of accumulated precipitation. In Bostonia, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.

Daylight

The average length of the day in January is 10.3h.

Sunshine

In Bostonia, the average sunshine is 6.9h.

UV index

Months with the lowest UV index in Bostonia are January, February, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 4 in January interpret into the following advice:
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. 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.
[Resources]

FAQ

What is the temperature in January in Bostonia?

In January, in Bostonia, California, the average high-temperature is 65.8°F (18.8°C), and the average low-temperature is 48.4°F (9.1°C).

What is the average humidity in January in Bostonia?

In Bostonia, the average relative humidity in January is 55%.

How much does it rain in Bostonia in January?

In Bostonia, during January, the rain falls for 5.2 days and regularly aggregates up to 1.1" (28mm) of precipitation.

How many hours of daylight does Bostonia have in January?

In Bostonia, California, the average length of the day in January is 10.3h.

How long on average sun shines in January in Bostonia?

In Bostonia, the average sunshine in January is 6.9h.

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

Months with the lowest UV index in Bostonia, California, are January, February, November and December, with an average maximum UV index of 4.

What is the UV index intensity in January in Bostonia?

The average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in January
Bostonia, CA

Average temperature in January - Bostonia, CA
  • Average high temperature in January: 65.8°F

The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).

  • Average low temperature in January: 48.4°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).

[Resources]

Average pressure in January
Bostonia, CA

Average pressure in January - Bostonia, CA
  • Average pressure in January: 30.09"

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are June and September (29.87").

[Resources]

Average wind speed in January
Bostonia, CA

Average wind speed in January - Bostonia, CA
  • Average wind speed in January: 4.8mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).

[Resources]

Average humidity in January
Bostonia, CA

Average humidity in January - Bostonia, CA
  • Average humidity in January: 55%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).

[Resources]

Average rainfall in January
Bostonia, CA

Average rainfall in January - Bostonia, CA
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").

[Resources]

Average rainfall days in January
Bostonia, CA

Average rainfall days in January - Bostonia, CA
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Bostonia, CA
  • Average daylight in January: 10.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in January: 6.9h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

[Resources]

Average sunshine days in January
Bostonia, CA

Average sunshine days in January - Bostonia, CA
  • Average sunshine days in January: 25.4 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).

[Resources]

Average UV index in January
Bostonia, CA

Average UV index in January - Bostonia, CA
  • Average UV index in January: 4

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

[Resources]

Average cloud cover in January
Bostonia, CA

Average cloud cover in January - Bostonia, CA
  • Average cloud cover in January: 20

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).

[Resources]

Average visibility in January
Bostonia, CA

Average visibility in January - Bostonia, 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).

[Resources]