October weather forecast
Challenge, CA

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Weather in October

October, like September, in Challenge, California, is a moderately hot autumn month, with an average temperature varying between 52.2°F (11.2°C) and 73.4°F (23°C).

Temperature

Transition into October marks a drop in the average high-temperature, moving from a warm 85.5°F (29.7°C) in September to a still moderately hot 73.4°F (23°C). October nights are marked by an average temperature drop to a cool 52.2°F (11.2°C).

Humidity

In Challenge, the average relative humidity in October is 45%.

Rainfall

In Challenge, in October, it is raining for 4.3 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 88.4 rainfall days, and 30.35" (771mm) of precipitation is accumulated.

Snowfall

In Challenge, California, snow does not fall in January, March through October.

Daylight

In Challenge, the average length of the day in October is 11h and 8min.
On the first day of the month, sunrise is at 7:01 am and sunset at 6:46 pm. On the last day of October, in Challenge, sunrise is at 7:32 am and sunset at 6:04 pm PDT.

Sunshine

In October, the average sunshine is 7h.

UV index

The average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 4 in October translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

An average high-temperature, in October, in Challenge, is 73.4°F (23°C) and the average low-temperature is 52.2°F (11.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in June is computed to be 84.2°F (29°C).

What is the average humidity in October?

The average relative humidity in October is 45%.

How many days does it rain in October?

In Challenge, during October, the rain falls for 4.3 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow?

In Challenge, snow does not fall in January, March through October.

Does it snow in October?

In Challenge, in October, it doesn't snow. In November, it regularly snows.

How many hours of daylight does Challenge have in October?

The average day length in October is 11h and 8min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 7:01 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 6:04 pm PDT.

How long on average sun shines in October in Challenge?

The average sunshine duration in October in Challenge is 7h.

How high is the UV index in October?

In Challenge, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Challenge, CA

Average temperature in October - Challenge, CA
  • Average high temperature in October: 73.4°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (52.5°F).

  • Average low temperature in October: 52.2°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).

Average pressure in October
Challenge, CA

Average pressure in October - Challenge, CA
  • Average pressure in October: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in October
Challenge, CA

Average wind speed in October - Challenge, CA
  • Average wind speed in October: 5.8mph

The windiest months (with the highest average wind speed) are February, March and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in October
Challenge, CA

Average humidity in October - Challenge, CA
  • Average humidity in October: 45%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and August (34%).

Average rainfall in October
Challenge, CA

Average rainfall in October - Challenge, CA
  • Average rainfall in October: 1.46"

The wettest month (with the highest rainfall) is March (6.02").
The driest month (with the least rainfall) is July (0.04").

Average rainfall days in October
Challenge, CA

Average rainfall days in October - Challenge, CA
  • Average rainfall days in October: 4.3 days

The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is July (1.4 days).

Average snowfall in October
Challenge, CA

Average snowfall in October - Challenge, CA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (0.43").
The months with the least snowfall are January, March, April, May, June, July, August, September and October (0").

Average snowfall days in October
Challenge, CA

Average snowfall days in October - Challenge, CA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).

Average daylight in October /
Average sunshine in October
Challenge, CA

Average daylight in October / Average sunshine in October - Challenge, CA
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in October: 7h and 0min

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 42min).

Average sunshine days in October
Challenge, CA

Average sunshine days in October - Challenge, CA
  • Average sunshine days in October: 25.6 days

The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (14.5 days).

Average UV index in October
Challenge, CA

Average UV index in October - Challenge, CA
  • Average UV index in October: 4

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in October
Challenge, CA

Average cloud cover in October - Challenge, CA
  • Average cloud cover in October: 16

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in October
Challenge, CA

Average visibility in October - Challenge, 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).

Challenge, California, USA

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