October weather forecastGranite Bay, CA
October
Weather in October
October, like September, in Granite Bay, California, is a moderately hot autumn month, with an average temperature ranging between min 52.7°F (11.5°C) and max 75°F (23.9°C).Temperature
Granite Bay's transition into October involves a shift in temperature, receding from a tropical 86.9°F (30.5°C) in September to a warm 75°F (23.9°C). Granite Bay registers a substantial downturn from daytime peaks throughout October nights, with an average low-temperature of 52.7°F (11.5°C).Humidity
In Granite Bay, the average relative humidity in October is 48%.Rainfall
In Granite Bay, during October, the rain falls for 4.2 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Granite Bay, during the entire year, the rain falls for 81.2 days and collects up to 22.64" (575mm) of precipitation.Snowfall
January, March through November are months without snowfall.Daylight
In October, the average length of the day in Granite Bay is 11h and 10min.On the first day of October, sunrise is at 7:01 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:05 pm PDT.
Sunshine
The average sunshine in October is 7.2h.UV index
In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In October, a regular UV index of 4 translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Granite Bay, CA
- Average high temperature in October: 75°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (54°F).
- Average low temperature in October: 52.7°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).
Average pressure in October
Granite Bay, CA
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Granite Bay, CA
- Average wind speed in October: 4.3mph
The windiest month (with the highest average wind speed) is February (5.5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).
Average humidity in October
Granite Bay, CA
- Average humidity in October: 48%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).
Average rainfall in October
Granite Bay, CA
- Average rainfall in October: 1.18"
The wettest month (with the highest rainfall) is March (4.33").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in October
Granite Bay, CA
- Average rainfall days in October: 4.2 days
The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is July (1 days).
Average snowfall in October
Granite Bay, CA
- Average snowfall in October: 0"
The months with the highest snowfall are February and December (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in October
Granite Bay, CA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in October /
Average sunshine in October
Granite Bay, CA
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 7h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in October
Granite Bay, CA
- Average sunshine days in October: 25.9 days
The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is March (15.7 days).
Average UV index in October
Granite Bay, CA
- Average UV index in October: 4
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in October
Granite Bay, CA
- Average cloud cover in October: 15
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in October
Granite Bay, 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).





