October weather forecastMountain Brook, WA
October
Weather in October
October, like September, in Mountain Brook, Washington, is a cool autumn month, with an average temperature varying between 40.1°F (4.5°C) and 54.7°F (12.6°C).Temperature
October signals a clear temperature drop, with average high-temperatures decreasing from September's agreeable 69.1°F (20.6°C) to a fresh 54.7°F (12.6°C). In Mountain Brook, the expected average low-temperature for October is a wintry 40.1°F (4.5°C).Humidity
In October, the average relative humidity in Mountain Brook is 74%.Rainfall
In Mountain Brook, in October, during 14.5 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Mountain Brook, during the entire year, the rain falls for 152.5 days and collects up to 26.93" (684mm) of precipitation.Snowfall
In Mountain Brook, Washington, snow does not fall in May through October.Daylight
In Mountain Brook, the average length of the day in October is 10h and 55min.On the first day of the month, sunrise is at 7:05 am and sunset at 6:45 pm. On the last day of October, in Mountain Brook, Washington, sunrise is at 7:45 am and sunset at 5:52 pm PDT.
Sunshine
In Mountain Brook, the average sunshine in October is 5.7h.UV index
In October, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: In October, a daily UV index of 2 turns into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Mountain Brook, WA
- Average high temperature in October: 54.7°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (35.2°F).
- Average low temperature in October: 40.1°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in October
Mountain Brook, WA
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in October
Mountain Brook, WA
- Average wind speed in October: 4.8mph
The windiest month (with the highest average wind speed) is June (6.4mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in October
Mountain Brook, WA
- Average humidity in October: 74%
The months with the highest relative humidity are January, February and December (88%).
The months with the lowest relative humidity are July and August (58%).
Average rainfall in October
Mountain Brook, WA
- Average rainfall in October: 2.52"
The wettest month (with the highest rainfall) is January (4.88").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in October
Mountain Brook, WA
- Average rainfall days in October: 14.5 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in October
Mountain Brook, WA
- Average snowfall in October: 0"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Mountain Brook, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is December (6.5 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
Mountain Brook, WA
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in October: 5h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Mountain Brook, WA
- Average sunshine days in October: 14.8 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in October
Mountain Brook, WA
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in October
Mountain Brook, WA
- Average cloud cover in October: 42
The months with the most cloud cover are January and February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in October
Mountain Brook, WA
- Average visibility in October: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
