October weather forecastChester, CA
October
Weather in October
October, the same as September, in Chester, California, is a moderate autumn month, with an average temperature varying between 36.5°F (2.5°C) and 60.6°F (15.9°C).Temperature
The start of October comes with a reduction in the average high-temperature, receding from a moderately hot 73.4°F (23°C) in September to a refreshing 60.6°F (15.9°C). Despite considerable daily temperature swings, a steady low-temperature average of 36.5°F (2.5°C) is noted throughout October.Humidity
In October, the average relative humidity is 57%.Rainfall
In Chester, during October, the rain falls for 7.6 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 98.1 rainfall days, and 32.99" (838mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Chester. In Chester, in October, snow falls for 1.4 days, with typically accumulated 1.57" (40mm) of snow. Throughout the year, there are 66 snowfall days, and 127.72" (3244mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 7min.On the first day of October, sunrise is at 7:02 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:02 pm PDT.
Sunshine
The average sunshine in October is 7.1h.UV index
In Chester, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 in October translates into these instructions:
Take precautions - Protection against sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Chester, CA
- Average high temperature in October: 60.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in October: 36.5°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in October
Chester, CA
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Chester, CA
- Average wind speed in October: 5.7mph
The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in October
Chester, CA
- Average humidity in October: 57%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is July (42%).
Average rainfall in October
Chester, CA
- Average rainfall in October: 1.57"
The wettest month (with the highest rainfall) is March (5.59").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in October
Chester, CA
- Average rainfall days in October: 7.6 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is August (4 days).
Average snowfall in October
Chester, CA
- Average snowfall in October: 1.57"
The month with the highest snowfall is March (27.05").
The months with the least snowfall are July and August (0").
Average snowfall days in October
Chester, CA
- Average snowfall days in October: 1.4 days
The month with the highest number of snowfall days is March (14 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in October /
Average sunshine in October
Chester, CA
- Average daylight in October: 11h and 6min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 7h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in October
Chester, CA
- Average sunshine days in October: 21.4 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in October
Chester, CA
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in October
Chester, CA
- Average cloud cover in October: 20
The month with the most cloud cover is March (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in October
Chester, CA
- Average visibility in October: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





