October weather forecastBirch Bay, WA
October
Weather in October
October, the same as September, in Birch Bay, Washington, is another mild autumn month, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 55.9°F (13.3°C).Temperature
With the onset of October, Birch Bay's climate undergoes a slight change as the average high-temperature moves from a refreshing 64.8°F (18.2°C) in September to a mild 55.9°F (13.3°C). Throughout the October nights, Birch Bay encounters a low-temperature of 46°F (7.8°C).Humidity
In Birch Bay, the average relative humidity in October is 81%.Rainfall
In Birch Bay, in October, during 16.4 rainfall days, 4.8" (122mm) of precipitation is typically accumulated. Throughout the year, there are 176.1 rainfall days, and 43.78" (1112mm) of precipitation is accumulated.Snowfall
In Birch Bay, snow does not fall in May through October.Ocean temperature
In Birch Bay, the average seawater temperature in October is 50.5°F (10.3°C).Note: Swimming in 50.5°F (10.3°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In Birch Bay, 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 5:51 pm PDT.
Sunshine
The average sunshine in October is 5.2h.UV index
In October, the average daily maximum UV index in Birch Bay is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In October, the maximum UV index of 3 suggests this advice:
Put precautions into practice - Guidance to elude sunburn is provided. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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 sea temperature in October
Birch Bay, WA
- Average sea temperature in October: 50.5°F
The best months for swimming (with the highest average sea temperature) are August and September (52.6°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).
Average daylight in October /
Average sunshine in October
Birch Bay, WA
- Average daylight in October: 10h and 48min
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 12min
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
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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
Birch Bay, 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).
