October weather forecastPenryn, CA
October
Weather in October
October, like September, in Penryn, California, is another warm autumn month, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 73.6°F (23.1°C).Temperature
The beginning of October marks a decrease in the average high-temperature, transitioning from 85.8°F (29.9°C) in September to a still warm 73.6°F (23.1°C). During the month of October, an average low-temperature of 52.3°F (11.3°C) is recorded.Humidity
In October, the average relative humidity is 46%.Rainfall
In Penryn, in October, it is raining for 4.1 days, with typically 1.34" (34mm) of accumulated precipitation. In Penryn, during the entire year, the rain falls for 84.8 days and collects up to 28.86" (733mm) of precipitation.Snowfall
January, April through November are months without snowfall.Daylight
In October, the average length of the day is 11h and 10min.On the first day of the month, sunrise is at 7:01 am and sunset at 6:46 pm. On the last day of October, in Penryn, sunrise is at 7:31 am and sunset at 6:04 pm PDT.
Sunshine
In October, the average sunshine is 7.2h.UV index
In Penryn, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In October, the maximum UV index of 4 suggests these recommendations:
Guard yourself - Avoiding sunburn is suggested. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Penryn, CA
- Average high temperature in October: 73.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.4°F).
- Average low temperature in October: 52.3°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in October
Penryn, 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
Penryn, CA
- Average wind speed in October: 4.9mph
The windiest months (with the highest average wind speed) are February and March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in October
Penryn, CA
- Average humidity in October: 46%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (38%).
Average rainfall in October
Penryn, CA
- Average rainfall in October: 1.34"
The wettest month (with the highest rainfall) is March (5.63").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in October
Penryn, CA
- Average rainfall days in October: 4.1 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is July (1 days).
Average snowfall in October
Penryn, CA
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days in October
Penryn, CA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in October /
Average sunshine in October
Penryn, 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 months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in October
Penryn, CA
- Average sunshine days in October: 26.3 days
The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is March (14.6 days).
Average UV index in October
Penryn, 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
Penryn, CA
- Average cloud cover in October: 15
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in October
Penryn, 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).





