Monthly 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). In January, the average high-temperature is practically the same as in December - a still comfortable 65.8°F (18.8°C). Weather in January »

Weather in February

The last month of the winter, February, is another comfortable month in Bostonia, California, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 48°F (8.9°C). In February, the average high-temperature is practically the same as in January - a still comfortable 64.9°F (18.3°C). Weather in February »

Weather in March

March, the first month of the spring, in Bostonia, is also an enjoyable month, with average temperature fluctuating between 67.3°F (19.6°C) and 48.9°F (9.4°C). In March, the average high-temperature is almost the same as in February - a still enjoyable 67.3°F (19.6°C). Weather in March »

Weather in April

April is an agreeable spring month in Bostonia, California, with average temperature varying between 70°F (21.1°C) and 50.7°F (10.4°C). In Bostonia, the average high-temperature is practically the same as in March - a pleasant 70°F (21.1°C). Weather in April »

Weather in May

May, the last month of the spring, in Bostonia, is also an agreeable month, with average temperature fluctuating between 71.6°F (22°C) and 54°F (12.2°C). In Bostonia, California, the average high-temperature is almost the same as in April - a still pleasant 71.6°F (22°C). Weather in May »

Weather in June

June, the first month of the summer, in Bostonia, is a moderately hot month, with temperature in the range of an average low of 57.9°F (14.4°C) and an average high of 77°F (25°C). In June, the average high-temperature slightly increases, from a pleasant 71.6°F (22°C) in May, to a moderately hot 77°F (25°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Bostonia, California, with average temperature varying between 63.9°F (17.7°C) and 81.7°F (27.6°C). In Bostonia, the average high-temperature is almost the same as in June - a still moderately hot 81.7°F (27.6°C). Weather in July »

Weather in August

August, the last month of the summer, in Bostonia, is another warm month, with average temperature ranging between max 83.8°F (28.8°C) and min 65.8°F (18.8°C). With an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 65.8°F (18.8°C), August is the warmest month. The average heat index is appraised at a tropical 87.3°F (30.7°C). Weather in August »

Weather in September

September, the first month of the autumn, in Bostonia, is also a moderately hot month, with average temperature varying between 63.9°F (17.7°C) and 82.6°F (28.1°C). In September, the average high-temperature is essentially the same as in August - a still warm 82.6°F (28.1°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Bostonia, California, with average temperature varying between 59°F (15°C) and 77.2°F (25.1°C). In Bostonia, the average high-temperature marginally drops, from 82.6°F (28.1°C) in September, to a still moderately hot 77.2°F (25.1°C). Weather in October »

Weather in November

November, the last month of the autumn, in Bostonia, is another pleasant month, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 53.2°F (11.8°C). In November, the average high-temperature marginally drops, from a moderately hot 77.2°F (25.1°C) in October, to an agreeable 71.1°F (21.7°C). Weather in November »

Weather in December

December, the first month of the winter, in Bostonia, is still a comfortable month, with average temperature fluctuating between 63.7°F (17.6°C) and 47.8°F (8.8°C). December is the coldest month, with an average high-temperature of 63.7°F (17.6°C) and an average low-temperature of 47.8°F (8.8°C). Weather in December »
[Resources]

FAQ

How much does it rain in Bostonia?

In Bostonia, California, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.

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

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

What is the wettest month in Bostonia?

February is the month with the most rainfall. Rain falls for 5.9 days and accumulates 1.81" (46mm) of precipitation.

What is the most humid month in Bostonia?

The most humid month is May, with an average relative humidity of 66%.

What is the driest month in Bostonia?

June is the month with the least rainfall in Bostonia. Rain falls for 1.4 days and accumulates 0.04" (1mm) of precipitation.

When are the longest days in Bostonia?

June has the longest days of the year in Bostonia, with an average of 14.3h of daylight.

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

Months with the highest UV index are June through September, with an average maximum UV index of 6.

What month has the most sunshine in Bostonia?

With an average of 12.1h of sunshine, July has the most sunshine of the year.

What is the warmest month in Bostonia?

August is the warmest month, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 65.8°F (18.8°C).

What is the least humid month in Bostonia?

With an average relative humidity of 53%, November is the least humid month in Bostonia.

What is the coldest month in Bostonia?

With an average high-temperature of 63.7°F (17.6°C) and an average low-temperature of 47.8°F (8.8°C), December is the coldest month in Bostonia, California.

What is the month with the shortest days in Bostonia?

The month with the shortest days is December, with an average of 10h of daylight.

What is the month with the least sunshine in Bostonia?

The month with the least sunshine is December, with an average of 6.7h of sunshine.

Average temperature
Bostonia, CA

Average temperature - Bostonia, CA

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).

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
Bostonia, CA

Average pressure - Bostonia, CA

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
Bostonia, CA

Average wind speed - Bostonia, CA

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 rainfall
Bostonia, CA

Average rainfall - Bostonia, CA

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
Bostonia, CA

Average rainfall days - Bostonia, CA

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 / Average sunshine
Bostonia, CA

Average daylight / Average sunshine - Bostonia, CA

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

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
Bostonia, CA

Average sunshine days - Bostonia, CA

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
Bostonia, CA

Average UV index - Bostonia, CA

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 visibility
Bostonia, CA

Average visibility - Bostonia, CA

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]