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
The start of October brings a distinct shift in the average high-temperature, dropping from September's warm 76.1°F (24.5°C) to an enjoyable 61.7°F (16.5°C). During October nights, Hermiston records an average temperature of 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. Throughout the year, in Hermiston, there are 109.3 rainfall days, and 8.11" (206mm) of precipitation is accumulated.Snowfall
In Hermiston, snow does not fall in April through August and October.Daylight
In Hermiston, the average length of the day in October 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, in Hermiston, sunrise is at 7:37 am and sunset at 5:44 pm PDT.
Sunshine
The average sunshine in October in Hermiston is 6.8h.UV index
In October, the average daily maximum UV index in Hermiston is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in October converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the usual temperature for Hermiston in October?
What is the average humidity in October in Hermiston?
How much does it rain in Hermiston in October?
When it does not snow in Hermiston?
Does it snow in Hermiston in October?
What is the average length of the day in October in Hermiston?
What time are sunrise and sunset in October in Hermiston?
How long on average sun shines in October in Hermiston?
What is the UV index reading 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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