Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
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). An average low-temperature of 59°F (15°C) is observed during October nights.Humidity
The average relative humidity in October is 58%.Rainfall
In October, in Bostonia, the rain falls for 2.7 days. Throughout October, 0.2" (5mm) of precipitation is accumulated. In Bostonia, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.Daylight
In Bostonia, the average length of the day in October is 11h and 21min.On the first day of October, sunrise is at 6:42 am and sunset at 6:31 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:57 pm PDT.
Sunshine
In Bostonia, the average sunshine in October is 9.1h.UV index
The average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In October, a daily UV index of 5 turns into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Bostonia in October?
What is the average humidity in October?
How much does it rain in October?
What is the average length of the day in October?
When are sunrise and sunset in October?
How long on average sun shines in October?
How high is the UV index in October?
Average temperature in October
Bostonia, CA
- Average high temperature in October: 77.2°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 October: 59°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 in October
Bostonia, CA
- Average pressure in October: 29.93"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 in October
Bostonia, CA
- Average wind speed in October: 4.3mph
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 in October
Bostonia, CA
- Average humidity in October: 58%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).
Average rainfall in October
Bostonia, CA
- Average rainfall in October: 0.2"
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 in October
Bostonia, CA
- Average rainfall days in October: 2.7 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 in October /
Average sunshine in October
Bostonia, CA
- Average daylight in October: 11h and 2min
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 October: 9h and 1min
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 in October
Bostonia, CA
- Average sunshine days in October: 26.7 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 in October
Bostonia, CA
- Average UV index in October: 5
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 in October
Bostonia, CA
- Average cloud cover in October: 12
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 in October
Bostonia, CA
- Average visibility in October: 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).
Bostonia, California, USA
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