October weather forecast
John Sam Lake, WA

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Weather in October

October, the same as September, in John Sam Lake, Washington, is a moderate autumn month, with an average temperature fluctuating between 57°F (13.9°C) and 44.4°F (6.9°C).

Temperature

The onset of October comes with a shift in the average high-temperature, falling from a comfortable 67.1°F (19.5°C) in September to a still refreshing 57°F (13.9°C). Nightly temperatures drop to an average low of 44.4°F (6.9°C) in October.

Humidity

In October, the average relative humidity is 81%.

Rainfall

In October, the rain falls for 15.8 days. Throughout October, 3.11" (79mm) of precipitation is accumulated. In John Sam Lake, during the entire year, the rain falls for 179.1 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

In John Sam Lake, snow does not fall in May through October.

Daylight

The average length of the day in October is 10h and 49min.
On the first day of October, sunrise is at 7:09 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:51 pm PDT.

Sunshine

In John Sam Lake, the average sunshine in October is 5.4h.

UV index

In John Sam Lake, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 3 during October morphs into the following directions:
Be vigilant - Preventing sunburn is recommended. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for John Sam Lake in October?

The high-temperature in John Sam Lake, Washington, during October is 57°F (13.9°C) and the low-temperature is 44.4°F (6.9°C).

What is the average humidity in October?

The average relative humidity in October is 81%.

How much does it rain in October?

In October, the rain falls for 15.8 days. Throughout October, 3.11" (79mm) of precipitation is accumulated.

When it does not snow?

In John Sam Lake, snow does not fall in May through October.

Does it snow in October?

In John Sam Lake, in October, it doesn't snow. In November, it regularly snows.

How many hours of daylight does John Sam Lake have in October?

The average day length in October is 10h and 49min.

When are sunrise and sunset in October?

On the first day of October, sunrise is at 7:09 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:51 pm PDT.

How many hours of sunshine does John Sam Lake have in October?

The average sunshine duration in October is 5.4h.

How high is the UV index in October in John Sam Lake?

In John Sam Lake, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
John Sam Lake, WA

Average temperature in October - John Sam Lake, WA
  • Average high temperature in October: 57°F

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in October: 44.4°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).

Average pressure in October
John Sam Lake, WA

Average pressure in October - John Sam Lake, WA
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in October
John Sam Lake, WA

Average wind speed in October - John Sam Lake, WA
  • Average wind speed in October: 4.8mph

The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in October
John Sam Lake, WA

Average humidity in October - John Sam Lake, WA
  • Average humidity in October: 81%

The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).

Average rainfall in October
John Sam Lake, WA

Average rainfall in October - John Sam Lake, WA
  • Average rainfall in October: 3.11"

The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").

Average rainfall days in October
John Sam Lake, WA

Average rainfall days in October - John Sam Lake, WA
  • Average rainfall days in October: 15.8 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
John Sam Lake, WA

Average snowfall in October - John Sam Lake, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
John Sam Lake, WA

Average snowfall days in October - John Sam Lake, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (3.1 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
John Sam Lake, WA

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

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in October: 5h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).

Average sunshine days in October
John Sam Lake, WA

Average sunshine days in October - John Sam Lake, WA
  • Average sunshine days in October: 13.8 days

The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).

Average UV index in October
John Sam Lake, WA

Average UV index in October - John Sam Lake, 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
John Sam Lake, WA

Average cloud cover in October - John Sam Lake, WA
  • Average cloud cover in October: 42

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in October
John Sam Lake, WA

Average visibility in October - John Sam Lake, WA
  • Average visibility in October: 6mi

The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).

John Sam Lake, Washington, USA

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