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
Hermiston's transition into October is marked by a clear drop in the average high-temperature, receding from a warm 76.1°F (24.5°C) in September to a comfortable 61.7°F (16.5°C). In Hermiston, the average temperature during the nights of October drops to a chilly 46.8°F (8.2°C).Humidity
In Hermiston, the average relative humidity in October is 57%.Rainfall
In October, the rain falls for 10.3 days. Throughout October, 0.75" (19mm) of precipitation is accumulated. In Hermiston, during the entire year, the rain falls for 109.3 days and collects up to 8.11" (206mm) of precipitation.Snowfall
April through August and October are months without snowfall in Hermiston.Daylight
In October, the average length of the day is 10h and 55min.On the first day of the month, sunrise is at 6:56 am and sunset at 6:36 pm. On the last day of October, sunrise is at 7:37 am and sunset at 5:44 pm PDT.
Sunshine
In October, the average sunshine is 6.8h.UV index
In Hermiston, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 4 in October translates into the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
What is the average humidity in October?
How many days does it rain in October?
When it does not snow?
Does it snow in Hermiston in October?
How many hours of daylight does Hermiston have in October?
When is the sunrise / sunset in October?
How many hours of sunshine does Hermiston have in October?
What is the UV index intensity in October in Hermiston?
Average temperature in October
Hermiston, OR
- Average high temperature in October: 61.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is December (38.8°F).
- Average low temperature in October: 46.8°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).
Average pressure in October
Hermiston, OR
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in October
Hermiston, OR
- Average wind speed in October: 6.9mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is December (6.1mph).
Average humidity in October
Hermiston, OR
- Average humidity in October: 57%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in October
Hermiston, OR
- Average rainfall in October: 0.75"
The wettest months (with the highest rainfall) are March and December (1.06").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in October
Hermiston, OR
- Average rainfall days in October: 10.3 days
The month with the highest number of rainy days is March (14.5 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in October
Hermiston, OR
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in October
Hermiston, OR
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is December (3.7 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in October /
Average sunshine in October
Hermiston, 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: 6h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in October
Hermiston, OR
- Average sunshine days in October: 19.2 days
The month with the most sunshine days is July (25.5 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in October
Hermiston, OR
- Average UV index in October: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Hermiston, OR
- Average cloud cover in October: 28
The months with the most cloud cover are January and December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in October
Hermiston, OR
- 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).
Hermiston, Oregon, USA
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