October weather forecastSunnyvale, TX
October
Weather in October
October, the same as September, is another warm autumn month in Sunnyvale, Texas, with an average temperature fluctuating between 76.1°F (24.5°C) and 58.3°F (14.6°C).Temperature
October's onset corresponds with a shift in the average high-temperature, moving from a hot 87.6°F (30.9°C) in September to a moderately hot 76.1°F (24.5°C). Sunnyvale usually reports an average low-temperature of 58.3°F (14.6°C) during the month of October.Humidity
The average relative humidity in October is 66%.Rainfall
October is the month with the most rainfall. Rain falls for 12.4 days and accumulates 4.29" (109mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
In Sunnyvale, the average length of the day in October is 11h and 21min.On the first day of October, sunrise is at 7:20 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 6:35 pm CDT.
Sunshine
In Sunnyvale, Texas, the average sunshine in October is 6.6h.UV index
In October, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 4 during October translates into the following guidance:
Be vigilant - Preventing sunburn is recommended. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Sunnyvale, TX
- Average high temperature in October: 76.1°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in October: 58.3°F
The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in October
Sunnyvale, TX
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Sunnyvale, TX
- Average wind speed in October: 7.9mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in October
Sunnyvale, TX
- Average humidity in October: 66%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (58%).
Average rainfall in October
Sunnyvale, TX
- Average rainfall in October: 4.29"
The wettest month (with the highest rainfall) is October (4.29").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in October
Sunnyvale, TX
- Average rainfall days in October: 12.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in October
Sunnyvale, TX
- Average snowfall in October: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in October
Sunnyvale, TX
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in October /
Average sunshine in October
Sunnyvale, TX
- Average daylight in October: 11h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in October: 6h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in October
Sunnyvale, TX
- Average sunshine days in October: 17 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is September (13 days).
Average UV index in October
Sunnyvale, TX
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in October
Sunnyvale, TX
- Average cloud cover in October: 30
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in October
Sunnyvale, TX
- 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).
