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 shows a mild decline in the average high-temperature, falling from September's pleasant 69.3°F (20.7°C) to a moderate 58.1°F (14.5°C). During the nights in October, Saint Helens experiences a consistent average temperature of 41.7°F (5.4°C).Humidity
The average relative humidity in October in Saint Helens is 81%.Rainfall
In October, in Saint Helens, the rain falls for 13.6 days. Throughout October, 2.32" (59mm) of precipitation is accumulated. In Saint Helens, during the entire year, the rain falls for 149 days and collects up to 19.37" (492mm) of precipitation.Snowfall
May through October are months without snowfall in Saint Helens.Daylight
The average length of the day in October in Saint Helens is 10h and 55min.On the first day of the month, sunrise is at 7:10 am and sunset at 6:50 pm. On the last day of October, sunrise is at 7:51 am and sunset at 5:58 pm PDT.
Sunshine
The average sunshine in October in Saint Helens is 5.1h.UV index
The average daily maximum UV index in October in Saint Helens is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 3 during October morphs into the following directions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What are the temperatures in Saint Helens in October?
What is the average humidity in October in Saint Helens?
How many days does it rain in October in Saint Helens?
When it does not snow in Saint Helens?
Does it snow in Saint Helens in October?
What is the average length of the day in October in Saint Helens?
What time are sunrise and sunset in October in Saint Helens?
How many hours of sunshine does Saint Helens have in October?
What is the UV index intensity in October in Saint Helens?
Average temperature in October
Saint Helens, OR
- Average high temperature in October: 58.1°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in October: 41.7°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (31.8°F).
Average pressure in October
Saint Helens, OR
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in October
Saint Helens, OR
- Average wind speed in October: 4.3mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in October
Saint Helens, OR
- Average humidity in October: 81%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in October
Saint Helens, OR
- Average rainfall in October: 2.32"
The wettest month (with the highest rainfall) is January (2.64").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in October
Saint Helens, OR
- Average rainfall days in October: 13.6 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.9 days).
Average snowfall in October
Saint Helens, OR
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Saint Helens, OR
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (3.6 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
Saint Helens, OR
- Average daylight in October: 10h and 5min
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 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 42min).
Average sunshine days in October
Saint Helens, OR
- Average sunshine days in October: 16.3 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (12.1 days).
Average UV index in October
Saint Helens, OR
- Average UV index in October: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in October
Saint Helens, OR
- Average cloud cover in October: 50
The month with the most cloud cover is March (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Saint Helens, OR
- Average visibility in October: 4mi
The months with the highest visibility are July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).
Saint Helens, Oregon, USA
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