October weather forecastHalcyon, CA
October
Weather in October
October, like September, in Halcyon, California, is a moderately hot autumn month, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 74.3°F (23.5°C).Temperature
As October unfolds, the average high-temperature reaches a still warm 74.3°F (23.5°C), hinting at a slight fluctuation from the previous month. Halcyon experiences a mean temperature of 56.7°F (13.7°C) during October nights.Humidity
The least humid month is October, with an average relative humidity of 58%.Rainfall
In Halcyon, during October, the rain falls for 2.9 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, there are 47.6 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Daylight
In October, the average length of the day is 11h and 17min.On the first day of October, sunrise is at 6:57 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 6:08 pm PDT.
Sunshine
The average sunshine in October in Halcyon is 7.6h.UV index
In October, the average daily maximum UV index in Halcyon is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 5 in October transforms into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Halcyon, CA
- Average high temperature in October: 74.3°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in October: 56.7°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in October
Halcyon, CA
- Average pressure in October: 29.97"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in October
Halcyon, CA
- Average wind speed in October: 6.1mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in October
Halcyon, CA
- Average humidity in October: 58%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in October
Halcyon, CA
- Average rainfall in October: 0.35"
The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in October
Halcyon, CA
- Average rainfall days in October: 2.9 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in October /
Average sunshine in October
Halcyon, CA
- Average daylight in October: 11h and 18min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in October: 7h and 36min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in October
Halcyon, CA
- Average sunshine days in October: 27.4 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).
Average UV index in October
Halcyon, CA
- Average UV index in October: 5
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in October
Halcyon, CA
- Average cloud cover in October: 12
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in October
Halcyon, 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).
