October weather forecastHerald, CA
October
Weather in October
October, like September, in Herald, California, is a moderately hot autumn month, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 53.6°F (12°C).Temperature
Start of October brings a shift in the average high-temperature, falling from September's hot 88.5°F (31.4°C) to a warm 76.8°F (24.9°C). The nighttime temperature during October displays a significant divergence from daily peaks, averaging at a fresh 53.6°F (12°C).Humidity
In Herald, the average relative humidity in October is 51%.Rainfall
In Herald, during October, the rain falls for 3.2 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Herald, during the entire year, the rain falls for 63.8 days and collects up to 12.6" (320mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
In Herald, the average length of the day in October is 11h and 11min.On the first day of the month, sunrise is at 7:01 am and sunset at 6:47 pm. On the last day of October, sunrise is at 7:31 am and sunset at 6:06 pm PDT.
Sunshine
In October, the average sunshine is 7.2h.UV index
In October, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In October, the maximum UV index of 4 suggests these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Herald, CA
- Average high temperature in October: 76.8°F
The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in October: 53.6°F
The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in October
Herald, 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 (29.91"Hg).
Average wind speed in October
Herald, CA
- Average wind speed in October: 4.7mph
The windiest months (with the highest average wind speed) are February and June (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).
Average humidity in October
Herald, CA
- Average humidity in October: 51%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (45%).
Average rainfall in October
Herald, CA
- Average rainfall in October: 0.59"
The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in October
Herald, CA
- Average rainfall days in October: 3.2 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is June (0.9 days).
Average snowfall days in October
Herald, CA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in October /
Average sunshine in October
Herald, CA
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 7h and 12min
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 54min).
Average sunshine days in October
Herald, CA
- Average sunshine days in October: 27.1 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.8 days).
Average UV index in October
Herald, CA
- Average UV index in October: 4
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in October
Herald, CA
- Average cloud cover in October: 14
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in October
Herald, 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).
