October weather forecastMontclair, CA
October
Weather in October
October, like September, in Montclair, California, is another warm autumn month, with an average temperature fluctuating between 57.9°F (14.4°C) and 79°F (26.1°C).Temperature
A change in temperatures is noted as September gives way to October, with average highs reducing from a tropical 88.2°F (31.2°C) to a warm 79°F (26.1°C). An average nighttime temperature of 57.9°F (14.4°C) is recorded in Montclair, California, during October.Humidity
In October, the average relative humidity is 45%.Rainfall
In October, the rain falls for 3 days. Throughout October, 0.24" (6mm) of precipitation is accumulated. Throughout the year, there are 49.6 rainfall days, and 7.8" (198mm) of precipitation is accumulated.Snowfall
In Montclair, snow does not fall in January, March through December.Daylight
The average length of the day in October is 11h and 19min.On the first day of October, sunrise is at 6:45 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:58 pm PDT.
Sunshine
In October, the average sunshine is 8.9h.UV index
In October, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 5 in October suggests the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Montclair, CA
- Average high temperature in October: 79°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (62.1°F).
- Average low temperature in October: 57.9°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure in October
Montclair, 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 (29.86"Hg).
Average wind speed in October
Montclair, CA
- Average wind speed in October: 4.8mph
The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in October
Montclair, CA
- Average humidity in October: 45%
The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (42%).
Average rainfall in October
Montclair, CA
- Average rainfall in October: 0.24"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in October
Montclair, CA
- Average rainfall days in October: 3 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in October
Montclair, CA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in October /
Average sunshine in October
Montclair, CA
- Average daylight in October: 11h and 18min
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 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in October
Montclair, CA
- Average sunshine days in October: 26.5 days
The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in October
Montclair, 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
Montclair, CA
- Average cloud cover in October: 9
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in October
Montclair, 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).
