October weather forecastHappy Valley, OR
October
Weather in October
October, the same as September, is another comfortable autumn month in Happy Valley, Oregon, with an average temperature varying between 61.9°F (16.6°C) and 45.5°F (7.5°C).Temperature
October weather is marked by a drop in the average high-temperature, falling from a warm 74.1°F (23.4°C) in September to a comfortable 61.9°F (16.6°C). Happy Valley observes an average nighttime low-temperature of 45.5°F (7.5°C) during the month of October.Humidity
In Happy Valley, the average relative humidity in October is 75%.Rainfall
In Happy Valley, in October, it is raining for 15.5 days, with typically 3.35" (85mm) of accumulated precipitation. In Happy Valley, during the entire year, the rain falls for 172.2 days and collects up to 31.3" (795mm) of precipitation.Snowfall
In Happy Valley, snow does not fall in April through October.Daylight
In October, the average length of the day is 10h and 55min.On the first day of October in Happy Valley, sunrise is at 7:09 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:58 pm PDT.
Sunshine
In Happy Valley, the average sunshine in October is 5.5h.UV index
The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in October, converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Happy Valley, OR
- Average high temperature in October: 61.9°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in October: 45.5°F
The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in October
Happy Valley, OR
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in October
Happy Valley, OR
- Average wind speed in October: 4.7mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in October
Happy Valley, OR
- Average humidity in October: 75%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in October
Happy Valley, OR
- Average rainfall in October: 3.35"
The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in October
Happy Valley, OR
- Average rainfall days in October: 15.5 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in October
Happy Valley, OR
- Average snowfall in October: 0"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Happy Valley, OR
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.3 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
Happy Valley, OR
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in October: 5h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in October
Happy Valley, OR
- Average sunshine days in October: 14.1 days
The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in October
Happy Valley, OR
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Happy Valley, OR
- Average cloud cover in October: 42
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in October
Happy Valley, OR
- Average visibility in October: 6mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
