October weather forecast
Roche Harbor, WA

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Weather in October

October, like September, is a moderate autumn month in Roche Harbor, Washington, with an average temperature fluctuating between 50.9°F (10.5°C) and 55.4°F (13°C).

Temperature

October ushers in a minute temperature change, with average high-temperatures reducing from September's comfortable 61.3°F (16.3°C) to a mild 55.4°F (13°C). Registering an almost steady temperature, Roche Harbor's nights in October see an average low of 50.9°F (10.5°C).

Humidity

In Roche Harbor, the average relative humidity in October is 78%.

Rainfall

In October, the rain falls for 15.5 days. Throughout October, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 167.7 rainfall days, and 23.46" (596mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In October, the average length of the day is 10h and 47min.
On the first day of October, sunrise is at 7:13 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:53 pm PDT.

Sunshine

In October, the average sunshine is 5.5h.

UV index

The average daily maximum UV index in October is 3. A UV Index estimate 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 average maximum UV index of 3 translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October?

In October, in Roche Harbor, the average high-temperature is 55.4°F (13°C), and the average low-temperature is 50.9°F (10.5°C).

What is the average humidity in October?

In Roche Harbor, the average relative humidity in October is 78%.

How many days does it rain in October?

In Roche Harbor, in October, it is raining for 15.5 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow in Roche Harbor?

In Roche Harbor, snow does not fall in April through October.

Does it snow in Roche Harbor in October?

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

How many hours of daylight does Roche Harbor have in October?

In October, the average day length is 10h and 47min.

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:13 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:53 pm PDT.

How many hours of sunshine does Roche Harbor have in October?

In Roche Harbor, the average sunshine duration in October is 5.5h.

What is the UV index reading in October?

The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Roche Harbor, WA

Average temperature in October - Roche Harbor, WA
  • Average high temperature in October: 55.4°F

The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).

  • Average low temperature in October: 50.9°F

The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).

Average pressure in October
Roche Harbor, WA

Average pressure in October - Roche Harbor, 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
Roche Harbor, WA

Average wind speed in October - Roche Harbor, WA
  • Average wind speed in October: 7.7mph

The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in October
Roche Harbor, WA

Average humidity in October - Roche Harbor, WA
  • Average humidity in October: 78%

The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).

Average rainfall in October
Roche Harbor, WA

Average rainfall in October - Roche Harbor, WA
  • Average rainfall in October: 2.48"

The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in October
Roche Harbor, WA

Average rainfall days in October - Roche Harbor, WA
  • Average rainfall days in October: 15.5 days

The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).

Average snowfall in October
Roche Harbor, WA

Average snowfall in October - Roche Harbor, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
Roche Harbor, WA

Average snowfall days in October - Roche Harbor, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (2.7 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
Roche Harbor, WA

Average daylight in October / Average sunshine in October - Roche Harbor, 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 24min).

  • Average sunshine in October: 5h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

Average sunshine days in October
Roche Harbor, WA

Average sunshine days in October - Roche Harbor, WA
  • Average sunshine days in October: 13.8 days

The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).

Average UV index in October
Roche Harbor, WA

Average UV index in October - Roche Harbor, WA
  • Average UV index in October: 3

The month with the highest UV index is 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
Roche Harbor, WA

Average cloud cover in October - Roche Harbor, WA
  • Average cloud cover in October: 41

The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).

Average visibility in October
Roche Harbor, WA

Average visibility in October - Roche Harbor, 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).

Roche Harbor, Washington, USA

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