October weather forecastThornton, CA

October

Weather in October

October, like September, in Thornton, California, is a moderately hot autumn month, with an average temperature varying between 53.6°F (12°C) and 76.8°F (24.9°C).

Temperature

October implies a gentle temperature shift, with average high-temperatures reducing from September's hot 88.5°F (31.4°C) to a moderately hot 76.8°F (24.9°C). The month of October sees a significant daily temperature drop, recording an average low-temperature of 53.6°F (12°C).

Humidity

In Thornton, the average relative humidity in October is 51%.

Rainfall

In Thornton, in October, during 3.2 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Thornton, 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

The average length of the day in October is 11h and 11min.
On the first day of October, sunrise is at 7:02 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:06 pm PDT.

Sunshine

The average sunshine in October is 7.2h.

UV index

In Thornton, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In October, the maximum UV index of 4 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in October, in Thornton, is 76.8°F (24.9°C), while the average low-temperature is 53.6°F (12°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 89.6°F (32°C).

The average relative humidity in October is 51%.

In Thornton, in October, during 3.2 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

In Thornton, snow does not fall in January through November.

In October, the average day length is 11h and 11min.

On the first day of October, sunrise is at 7:02 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:06 pm PDT.

The average sunshine duration in October is 7.2h.

In October, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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).