October weather forecastKelso, WA
October
Weather in October
October, the same as September, in Kelso, Washington, is a moderate autumn month, with an average temperature ranging between min 42.3°F (5.7°C) and max 59°F (15°C).Temperature
In Kelso, entering October brings a temperature decrement, reducing from September's agreeable 70.7°F (21.5°C) to a mild 59°F (15°C). The nighttime temperature dips to a cold 42.3°F (5.7°C) on average during October.Humidity
In October, the average relative humidity is 83%.Rainfall
In Kelso, during October, the rain falls for 15.9 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 175.5 rainfall days, and 25.83" (656mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in October is 10h and 53min.On the first day of October, sunrise is at 7:11 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:58 pm PDT.
Sunshine
In October, the average sunshine is 4.9h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 3 in October leads to these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Kelso, WA
- Average high temperature in October: 59°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in October: 42.3°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in October
Kelso, WA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in October
Kelso, WA
- Average wind speed in October: 4.1mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in October
Kelso, WA
- Average humidity in October: 83%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall in October
Kelso, WA
- Average rainfall in October: 2.83"
The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in October
Kelso, WA
- Average rainfall days in October: 15.9 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).
Average snowfall in October
Kelso, WA
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Kelso, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Kelso, WA
- Average daylight in October: 10h and 54min
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: 4h and 54min
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 30min).
Average sunshine days in October
Kelso, WA
- Average sunshine days in October: 13.7 days
The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).
Average UV index in October
Kelso, WA
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in October
Kelso, WA
- Average cloud cover in October: 52
The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in October
Kelso, WA
- Average visibility in October: 4mi
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).





