October weather forecastCupertino, CA
October
Weather in October
October, the same as September, in Cupertino, California, is an agreeable autumn month, with an average temperature ranging between max 71.6°F (22°C) and min 53.8°F (12.1°C).Temperature
A subtle shift in Cupertino's weather is observed as September turns into October, with the average high temperature reducing from a moderately hot 77.5°F (25.3°C) to a pleasant 71.6°F (22°C). October nights observe an average temperature dip to a cool 53.8°F (12.1°C).Humidity
July, September and October, with an average relative humidity of 64%, are the least humid months.Rainfall
In Cupertino, in October, during 3 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. In Cupertino, during the entire year, the rain falls for 53.6 days and collects up to 5.39" (137mm) of precipitation.Daylight
In Cupertino, the average length of the day in October is 11h and 13min.On the first day of October, sunrise is at 7:04 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 6:10 pm PDT.
Sunshine
In Cupertino, California, the average sunshine in October is 7.1h.UV index
In October, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in October leads to these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Cupertino, CA
- Average high temperature in October: 71.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in October: 53.8°F
The month with the highest average low temperature is August (56.1°F).
The coldest months (with the lowest average low temperature) are February and March (44.2°F).
Average pressure in October
Cupertino, CA
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in October
Cupertino, CA
- Average wind speed in October: 4.7mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.6mph).
Average humidity in October
Cupertino, CA
- Average humidity in October: 64%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July, September and October (64%).
Average rainfall in October
Cupertino, CA
- Average rainfall in October: 0.2"
The wettest month (with the highest rainfall) is February (1.02").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in October
Cupertino, CA
- Average rainfall days in October: 3 days
The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is August (0.8 days).
Average daylight in October /
Average sunshine in October
Cupertino, CA
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 7h and 6min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in October
Cupertino, CA
- Average sunshine days in October: 26.7 days
The month with the most sunshine days is August (28.5 days).
The months with the least sunshine days are February and March (20.8 days).
Average UV index in October
Cupertino, CA
- Average UV index in October: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in October
Cupertino, CA
- Average cloud cover in October: 16
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in October
Cupertino, 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).
