October weather forecastSierra Heights, CA
October
Weather in October
October, the same as September, is a moderately hot autumn month in Sierra Heights, California, with an average temperature varying between 78.8°F (26°C) and 57.2°F (14°C).Temperature
With October's arrival, Sierra Heights's weather changes as the average high-temperature falls from a tropical 88.3°F (31.3°C) in September to a moderately hot 78.8°F (26°C). Sierra Heights registers a significant drop in temperature in October, with average nighttime lows of 57.2°F (14°C).Humidity
In October, the average relative humidity is 44%.Rainfall
In October, the rain falls for 2.2 days. Throughout October, 0.16" (4mm) of precipitation is accumulated. Throughout the year, there are 48.1 rainfall days, and 6.89" (175mm) of precipitation is accumulated.Snowfall
In Sierra Heights, snow does not fall in January, March through December.Daylight
In Sierra Heights, the average length of the day in October is 11h and 19min.On the first day of the month, sunrise is at 6:44 am and sunset at 6:33 pm. On the last day of October, sunrise is at 7:09 am and sunset at 5:57 pm PDT.
Sunshine
In October, the average sunshine is 9h.UV index
In Sierra Heights, California, 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: The maximum UV index, 5 during October, leads to the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Sierra Heights, CA
- Average high temperature in October: 78.8°F
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is December (60.8°F).
- Average low temperature in October: 57.2°F
The month with the highest average low temperature is August (67.3°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).
Average pressure in October
Sierra Heights, 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 (29.85"Hg).
Average wind speed in October
Sierra Heights, CA
- Average wind speed in October: 4.9mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in October
Sierra Heights, CA
- Average humidity in October: 44%
The months with the highest relative humidity are February, March and May (52%).
The month with the lowest relative humidity is August (39%).
Average rainfall in October
Sierra Heights, CA
- Average rainfall in October: 0.16"
The wettest month (with the highest rainfall) is February (1.57").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in October
Sierra Heights, CA
- Average rainfall days in October: 2.2 days
The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in October
Sierra Heights, 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
Sierra Heights, 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: 9h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in October
Sierra Heights, CA
- Average sunshine days in October: 28 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in October
Sierra Heights, 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
Sierra Heights, CA
- Average cloud cover in October: 9
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in October
Sierra Heights, 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).
