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
October ushers in a minor alteration in San Dimas's climate, with the average high-temperature moving from September's tropical 86.7°F (30.4°C) to a moderately hot 78.3°F (25.7°C). San Dimas's temperature drops to an average low of 58.1°F (14.5°C) during the nights of October.Humidity
The average relative humidity in October is 46%.Rainfall
In October, in San Dimas, the rain falls for 2.6 days. Throughout October, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 45.2 rainfall days, and 6.5" (165mm) of precipitation is accumulated.Daylight
In San Dimas, California, the average length of the day in October is 11h and 19min.On the first day of the month, sunrise is at 6:46 am and sunset at 6:34 pm. On the last day of October, sunrise is at 7:10 am and sunset at 5:58 pm PDT.
Sunshine
The average sunshine in October is 8.8h.UV index
The average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in October transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
What is the average humidity in October?
How much does it rain in October?
How many hours of daylight does San Dimas have in October?
What time are sunrise and sunset in October?
How long on average sun shines in October in San Dimas?
What is the UV index reading in October?
Average temperature in October
San Dimas, CA
- Average high temperature in October: 78.3°F
The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in October: 58.1°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure in October
San Dimas, CA
- Average pressure in October: 29.94"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
San Dimas, CA
- Average wind speed in October: 4.6mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in October
San Dimas, CA
- Average humidity in October: 46%
The months with the highest relative humidity are March and May (55%).
The months with the lowest relative humidity are August and November (45%).
Average rainfall in October
San Dimas, CA
- Average rainfall in October: 0.2"
The wettest month (with the highest rainfall) is February (1.46").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in October
San Dimas, CA
- Average rainfall days in October: 2.6 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (1.2 days).
Average daylight in October /
Average sunshine in October
San Dimas, CA
- Average daylight in October: 11h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in October: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).
Average sunshine days in October
San Dimas, CA
- Average sunshine days in October: 27 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (22 days).
Average UV index in October
San Dimas, CA
- Average UV index in October: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in October
San Dimas, CA
- Average cloud cover in October: 9
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in October
San Dimas, 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).
San Dimas, California, USA
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