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
Riverdale's average high-temperature decreases in October, falling from a hot 94.1°F (34.5°C) in September to a moderately hot 80.4°F (26.9°C). In the face of high daytime temperatures, Riverdale witnesses a consistent average nighttime low of 56.5°F (13.6°C) during October.Humidity
The average relative humidity in October in Riverdale is 43%.Rainfall
In Riverdale, in October, during 3.4 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. Throughout the year, there are 58.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Daylight
The average length of the day in October in Riverdale is 11h and 14min.On the first day of October in Riverdale, sunrise is at 6:55 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 6:03 pm PDT.
Sunshine
In Riverdale, the average sunshine in October is 7.9h.UV index
The average daily maximum UV index in October is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 5 during October translates into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What are the temperatures in Riverdale in October?
What is the average humidity in October in Riverdale?
How much does it rain in Riverdale in October?
What is the average length of the day in October in Riverdale?
What time are sunrise and sunset in October in Riverdale?
How long on average sun shines in October in Riverdale?
How high is the UV index in October in Riverdale?
Average temperature in October
Riverdale, CA
- Average high temperature in October: 80.4°F
The warmest month (with the highest average high temperature) is July (102.2°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in October: 56.5°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is December (43°F).
Average pressure in October
Riverdale, CA
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in October
Riverdale, CA
- Average wind speed in October: 5.4mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and November (4.8mph).
Average humidity in October
Riverdale, CA
- Average humidity in October: 43%
The months with the highest relative humidity are January and December (66%).
The month with the lowest relative humidity is July (30%).
Average rainfall in October
Riverdale, CA
- Average rainfall in October: 0.47"
The wettest months (with the highest rainfall) are January, February and March (1.54").
The driest month (with the least rainfall) is August (0.08").
Average rainfall days in October
Riverdale, CA
- Average rainfall days in October: 3.4 days
The month with the highest number of rainy days is March (9.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in October /
Average sunshine in October
Riverdale, CA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in October: 7h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in October
Riverdale, CA
- Average sunshine days in October: 27 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (19.4 days).
Average UV index in October
Riverdale, CA
- Average UV index in October: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in October
Riverdale, CA
- Average cloud cover in October: 11
The months with the most cloud cover are March and December (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in October
Riverdale, 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).
Riverdale, California, USA
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