October weather forecastHarrington, WA
October
Weather in October
October, like September, is another refreshing autumn month in Harrington, Washington, with temperature in the range of an average high of 55.6°F (13.1°C) and an average low of 40.1°F (4.5°C).Temperature
A decrease in the average high-temperature marks October, falling from September's pleasant 72.5°F (22.5°C) to a moderate 55.6°F (13.1°C). Harrington's average low-temperature is measured at an icy 40.1°F (4.5°C) during October.Humidity
In October, the average relative humidity in Harrington is 64%.Rainfall
In Harrington, in October, it is raining for 12 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 127.9 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In October, in Harrington, it is snowing for 0.7 days. Throughout October, 0.16" (4mm) of snow is accumulated. Throughout the year, there are 65.1 snowfall days, and 37.36" (949mm) of snow is accumulated.Daylight
In Harrington, the average length of the day in October is 10h and 50min.On the first day of the month, sunrise is at 6:53 am and sunset at 6:31 pm. On the last day of October, in Harrington, sunrise is at 7:36 am and sunset at 5:36 pm PDT.
Sunshine
In October, the average sunshine in Harrington, Washington, is 6.5h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 during October translates into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Harrington, WA
- Average high temperature in October: 55.6°F
The warmest months (with the highest average high temperature) are July and August (83.3°F).
The month with the lowest average high temperature is December (31.5°F).
- Average low temperature in October: 40.1°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in October
Harrington, WA
- 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 (29.9"Hg).
Average wind speed in October
Harrington, WA
- Average wind speed in October: 7.1mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in October
Harrington, WA
- Average humidity in October: 64%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (37%).
Average rainfall in October
Harrington, WA
- Average rainfall in October: 1.5"
The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in October
Harrington, WA
- Average rainfall days in October: 12 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in October
Harrington, WA
- Average snowfall in October: 0.16"
The month with the highest snowfall is January (10").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Harrington, WA
- Average snowfall days in October: 0.7 days
The month with the highest number of snowfall days is December (15.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Harrington, WA
- Average daylight in October: 10h and 48min
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: 6h and 30min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in October
Harrington, WA
- Average sunshine days in October: 16.2 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (10.2 days).
Average UV index in October
Harrington, WA
- Average UV index in October: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in October
Harrington, WA
- Average cloud cover in October: 34
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in October
Harrington, WA
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





