Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October's arrival corresponds with a decrease in average high-temperatures, from September's agreeable 68.9°F (20.5°C) to a moderate 57.6°F (14.2°C). During October, the average low-temperature is a wintry 41.9°F (5.5°C).Humidity
The average relative humidity in October in Union is 85%.Rainfall
In Union, during October, the rain falls for 16.6 days and regularly aggregates up to 5" (127mm) of precipitation. In Union, during the entire year, the rain falls for 185.4 days and collects up to 42.87" (1089mm) of precipitation.Snowfall
April through October are months without snowfall in Union.Daylight
The average length of the day in October is 10h and 50min.On the first day of October in Union, sunrise is at 7:12 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 5:56 pm PDT.
Sunshine
The average sunshine in October in Union is 5.2h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 3 in October suggests the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Union?
What is the average humidity in October in Union?
How many days does it rain in October in Union?
When it does not snow in Union?
Does it snow in Union in October?
How many hours of daylight does Union have in October?
What time are sunrise and sunset in October in Union?
How long on average sun shines in October in Union?
What is the UV index reading in October in Union?
Average temperature in October
Union, WA
- Average high temperature in October: 57.6°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in October: 41.9°F
The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is February (32.7°F).
Average pressure in October
Union, WA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in October
Union, WA
- Average wind speed in October: 3.6mph
The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is September (3.4mph).
Average humidity in October
Union, WA
- Average humidity in October: 85%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is July (72%).
Average rainfall in October
Union, WA
- Average rainfall in October: 5"
The wettest month (with the highest rainfall) is January (7.24").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in October
Union, WA
- Average rainfall days in October: 16.6 days
The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in October
Union, WA
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Union, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (3.3 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
Union, WA
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in October: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in October
Union, WA
- Average sunshine days in October: 12.5 days
The month with the most sunshine days is July (21.7 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in October
Union, 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
Union, WA
- Average cloud cover in October: 50
The months with the most cloud cover are January and December (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in October
Union, WA
- Average visibility in October: 4mi
The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).
Union, Washington, USA
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