Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Bostonia, California, is another refreshing winter month, with an average temperature fluctuating between 48.4°F (9.1°C) and 65.8°F (18.8°C). The commencement of January brings an average high-temperature of a still enjoyable 65.8°F (18.8°C), marking an inconsequential divergence from December. Weather in January »
Weather in February
The last month of the winter, February, is another refreshing month in Bostonia, California, with an average temperature varying between 64.9°F (18.3°C) and 48°F (8.9°C). Bostonia marks the onset of February with an average high-temperature of a still enjoyable 64.9°F (18.3°C), subtly divergent from January's 65.8°F (18.8°C). Weather in February »
Weather in March
The first month of the spring, March, is still a refreshing month in Bostonia, California, with an average temperature ranging between min 48.9°F (9.4°C) and max 67.3°F (19.6°C). The onset of March marks an average high-temperature of a still enjoyable 67.3°F (19.6°C), hardly differing from February's 64.9°F (18.3°C). Weather in March »
Weather in April
April is a pleasant spring month in Bostonia, California, with an average temperature ranging between min 50.7°F (10.4°C) and max 70°F (21.1°C). Bostonia registers an average high-temperature of a pleasant 70°F (21.1°C) with the arrival of April, showing minor deviation from the preceding month. Weather in April »
Weather in May
May, the last month of the spring in Bostonia, is another pleasant month, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 71.6°F (22°C). The transition from April to May brings an average high-temperature of a still pleasant 71.6°F (22°C), barely different from April's 70°F (21.1°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Bostonia, California, with an average temperature fluctuating between 57.9°F (14.4°C) and 77°F (25°C). June's arrival is noted with a slight increase in the average high-temperature, moving from an agreeable 71.6°F (22°C) in May to a warm 77°F (25°C). Weather in June »
Weather in July
July, like June, in Bostonia, California, is another warm summer month, with an average temperature fluctuating between 81.7°F (27.6°C) and 63.9°F (17.7°C). July records an average high-temperature of a still warm 81.7°F (27.6°C), indicating a minor variation from the preceding month. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Bostonia, California, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 83.8°F (28.8°C). August, with its high-temperature average of 83.8°F (28.8°C) and a low-temperature average of 65.8°F (18.8°C), is the warmest month. August's mean heat index is estimated at a tropical 87.8°F (31°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Bostonia, California, with an average temperature fluctuating between 63.9°F (17.7°C) and 82.6°F (28.1°C). September brings an average high-temperature of a still moderately hot 82.6°F (28.1°C), nearly identical to the preceding month. Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Bostonia, California, with an average temperature fluctuating between 59°F (15°C) and 77.2°F (25.1°C). During the shift to October, Bostonia records a mild decrease in average high-temperature, moving from a moderately hot 82.6°F (28.1°C) in September to a still warm 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 an average temperature fluctuating between 53.2°F (11.8°C) and 71.1°F (21.7°C). In the transition to November, Bostonia observes a minor drop in the average high-temperature, shifting from a warm 77.2°F (25.1°C) in October to an agreeable 71.1°F (21.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also an enjoyable month in Bostonia, California, with temperature in the range of an average low of 47.8°F (8.8°C) and an average high of 63.7°F (17.6°C). In Bostonia, December is the coldest month, with temperatures averaging a high of 63.7°F (17.6°C) and a low of 47.8°F (8.8°C). Weather in December »
Updated: Jul 1, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How much does it rain?
In Bostonia, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.
What are the months with the lowest UV index?
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
What is the rainiest month?
February is the month with the most rainfall. Rain falls for 5.9 days and accumulates 1.81" (46mm) of precipitation.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
What is the most humid month?
With an average relative humidity of 66%, May is the most humid month.
What is the driest month?
June is the month with the least rainfall. Rain falls for 1.4 days and accumulates 0.04" (1mm) of precipitation.
When are the longest days?
June has the longest days of the year, with an average of 14h and 18min of daylight.
What is the month with the highest UV index?
The months with the highest UV index are June through September, with an average maximum UV index of 6.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 12.1h of sunshine.
What is the hottest time of year?
In Bostonia, the average temperatures in August are the highest, with a peak at 83.8°F (28.8°C) and a low of 65.8°F (18.8°C).
What is the least humid month?
With an average relative humidity of 53%, November is the least humid month.
What part of the year is the coldest in Bostonia?
Bostonia experiences its average lowest temperatures in December, reaching a peak of 63.7°F (17.6°C) and a minimum of 47.8°F (8.8°C).
What is the month with the shortest days?
The month with the shortest days is December, with an average of 10h and 0min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 6.7h of sunshine.
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).
Average pressure
Bostonia, CA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.87"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).
Average wind speed
Bostonia, CA
- Average wind speed in January:
4.8mph - Average wind speed in February:
5mph - Average wind speed in March:
5.1mph - Average wind speed in April:
5.5mph - Average wind speed in May:
5.4mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.7mph - Average wind speed in December:
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).
Average humidity
Bostonia, CA
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).
Average rainfall
Bostonia, CA
- Average rainfall in January:
1.1" - Average rainfall in February:
1.81" - Average rainfall in March:
0.79" - Average rainfall in April:
0.63" - Average rainfall in May:
0.39" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.31" - Average rainfall in September:
0.31" - Average rainfall in October:
0.2" - Average rainfall in November:
0.87" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Bostonia, CA
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
5.9 days - Average rainfall days in March:
7.7 days - Average rainfall days in April:
6.7 days - Average rainfall days in May:
4.8 days - Average rainfall days in June:
1.4 days
- Average rainfall days in July:
4.9 days - Average rainfall days in August:
3.3 days - Average rainfall days in September:
4.1 days - Average rainfall days in October:
2.7 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
5.9 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).
Average daylight / Average sunshine
Bostonia, CA
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
6h and 5min - Average sunshine in February:
6h and 5min - Average sunshine in March:
8h and 4min - Average sunshine in April:
10h and 5min - Average sunshine in May:
11h and 1min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 2min - Average sunshine in October:
9h and 1min - Average sunshine in November:
7h and 1min - Average sunshine in December:
6h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Bostonia, CA
- Average sunshine days in January:
25.4 days - Average sunshine days in February:
21.9 days - Average sunshine days in March:
22.9 days - Average sunshine days in April:
23.2 days - Average sunshine days in May:
24.8 days - Average sunshine days in June:
27.7 days
- Average sunshine days in July:
22.5 days - Average sunshine days in August:
23.9 days - Average sunshine days in September:
24.1 days - Average sunshine days in October:
26.7 days - Average sunshine days in November:
25.5 days - Average sunshine days in December:
24.7 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).
Average UV index
Bostonia, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover
Bostonia, CA
The 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).
Average visibility
Bostonia, CA
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).
Bostonia, California, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location