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
The arrival of October indicates a decrease in the average high-temperature, moving from a tropical 90.7°F (32.6°C) in September to a warm 77.5°F (25.3°C). Despite the intense daytime heat, Princeton sustains a steady low-temperature average of 54.9°F (12.7°C) during October.Humidity
The average relative humidity in October in Princeton is 44%.Rainfall
In Princeton, during October, the rain falls for 2.7 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Princeton, during the entire year, the rain falls for 58.9 days and collects up to 6.89" (175mm) of precipitation.Daylight
In October, the average length of the day in Princeton is 11h and 9min.On the first day of October, sunrise is at 7:04 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 6:07 pm PDT.
Sunshine
The average sunshine in October in Princeton is 7.1h.UV index
In October, the average daily maximum UV index in Princeton is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 5 in October translates into the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the usual temperature for Princeton in October?
What is the average humidity in October in Princeton?
How much does it rain in Princeton in October?
How many hours of daylight does Princeton have in October?
When are sunrise and sunset in October in Princeton?
How many hours of sunshine does Princeton have in October?
What is the UV index reading in October in Princeton?
Average temperature in October
Princeton, CA
- Average high temperature in October: 77.5°F
The warmest month (with the highest average high temperature) is July (98.8°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in October: 54.9°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure in October
Princeton, CA
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Princeton, CA
- Average wind speed in October: 6mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in October
Princeton, CA
- Average humidity in October: 44%
The month with the highest relative humidity is March (71%).
The month with the lowest relative humidity is September (36%).
Average rainfall in October
Princeton, CA
- Average rainfall in October: 0.39"
The wettest months (with the highest rainfall) are February and December (1.3").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in October
Princeton, CA
- Average rainfall days in October: 2.7 days
The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is July (1 days).
Average daylight in October /
Average sunshine in October
Princeton, CA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 7h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in October
Princeton, CA
- Average sunshine days in October: 27.6 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (19.7 days).
Average UV index in October
Princeton, 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 February, November and December (UV index 3).
Average cloud cover in October
Princeton, CA
- Average cloud cover in October: 15
The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in October
Princeton, 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).
Princeton, California, USA
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