October weather forecast
Custer, WA

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Weather in October

October, the same as September, in Custer, Washington, is a moderate autumn month, with an average temperature varying between 46°F (7.8°C) and 55.9°F (13.3°C).

Temperature

The arrival of October is marked by a minor reduction in average high-temperature, sliding from a comfortable 64.8°F (18.2°C) in September to a mild 55.9°F (13.3°C). During the month of October, Custer anticipates a mean low-temperature of 46°F (7.8°C).

Humidity

In October, the average relative humidity in Custer is 81%.

Rainfall

In October, the rain falls for 16.4 days. Throughout October, 4.8" (122mm) of precipitation is accumulated. In Custer, during the entire year, the rain falls for 176.1 days and collects up to 43.78" (1112mm) of precipitation.

Snowfall

In Custer, Washington, snow does not fall in May through October.

Daylight

In Custer, the average length of the day in October is 10h and 46min.
On the first day of the month, sunrise is at 7:11 am and sunset at 6:48 pm. On the last day of October, sunrise is at 7:57 am and sunset at 5:50 pm PDT.

Sunshine

In October, the average sunshine is 5.2h.

UV index

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 during October leads to these advisories:
Ensure safety - Recommendations to avert sunburn are presented. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What are October temperatures?

October temperatures in Custer vary between a high-temperature of 55.9°F (13.3°C) and a low-temperature of 46°F (7.8°C).

What is the average humidity in October in Custer?

The average relative humidity in October is 81%.

How many days does it rain in October?

In October, the rain falls for 16.4 days. Throughout October, 4.8" (122mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

Does it snow in October?

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

What is the average length of the day in October?

In Custer, the average day length in October is 10h and 46min.

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:11 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 5:50 pm PDT.

How long on average sun shines in October?

In Custer, the average sunshine duration in October is 5.2h.

What is the UV index intensity in October?

In Custer, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe 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
Custer, WA

Average temperature in October - Custer, WA
  • Average high temperature in October: 55.9°F

The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is December (41.9°F).

  • Average low temperature in October: 46°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (35.8°F).

Average pressure in October
Custer, WA

Average pressure in October - Custer, WA
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

Average wind speed in October
Custer, WA

Average wind speed in October - Custer, WA
  • Average wind speed in October: 5mph

The windiest months (with the highest average wind speed) are November and December (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in October
Custer, WA

Average humidity in October - Custer, WA
  • Average humidity in October: 81%

The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).

Average rainfall in October
Custer, WA

Average rainfall in October - Custer, WA
  • Average rainfall in October: 4.8"

The wettest month (with the highest rainfall) is November (7.13").
The driest month (with the least rainfall) is July (0.67").

Average rainfall days in October
Custer, WA

Average rainfall days in October - Custer, WA
  • Average rainfall days in October: 16.4 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in October
Custer, WA

Average snowfall in October - Custer, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Custer, WA

Average snowfall days in October - Custer, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in October /
Average sunshine in October
Custer, WA

Average daylight in October / Average sunshine in October - Custer, WA
  • Average daylight in October: 10h and 5min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in October: 5h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).

Average sunshine days in October
Custer, WA

Average sunshine days in October - Custer, WA
  • Average sunshine days in October: 13.2 days

The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).

Average UV index in October
Custer, WA

Average UV index in October - Custer, WA
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in October
Custer, WA

Average cloud cover in October - Custer, WA
  • Average cloud cover in October: 45

The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in October
Custer, WA

Average visibility in October - Custer, WA
  • 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).

Custer, Washington, USA

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