October weather forecastChelan, WA
October
Weather in October
October transforms Chelan, Washington with its vivid autumn hues and considerably cooler weather pattern. The weather observes a substantial dip in the average high temperature, dropping to 54.5°F (12.5°C). October attracts autumn enthusiasts with its vibrant fall foliage adding hues of crimson, orange, and yellow against a cooler weather backdrop. With the increase in rainfall, the city celebrates a picturesque setting with the leaves changing colors. November however makes way for harsher, cold weather conditions and a significant increase in rainfall.Temperature
Chelan's weather in October is marked by a clear decrease in the average high-temperature, moving down from September's agreeable 70.5°F (21.4°C) to a cool 54.5°F (12.5°C). Chelan experiences an average nighttime temperature of 38.1°F (3.4°C) in the month of October.Humidity
The average relative humidity in October in Chelan is 66%.Rainfall
In Chelan, in October, it is raining for 10.5 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, in Chelan, there are 99.9 rainfall days, and 10.47" (266mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall in Chelan. In October, it is snowing for 0.5 days. Throughout October, 0.2" (5mm) of snow is accumulated. Throughout the year, there are 48.7 snowfall days, and 28.62" (727mm) of snow is accumulated.Daylight
The average length of the day in October is 10h and 49min.On the first day of the month, sunrise is at 7:00 am and sunset at 6:38 pm. On the last day of October, sunrise is at 7:44 am and sunset at 5:42 pm PDT.
Sunshine
The average sunshine in October is 6.4h.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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In October, the maximum UV index of 2 suggests this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Chelan, WA
- Average high temperature in October: 54.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (30.2°F).
- Average low temperature in October: 38.1°F
The month with the highest average low temperature is August (55.8°F).
The coldest months (with the lowest average low temperature) are January and December (19°F).
Average pressure in October
Chelan, WA
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in October
Chelan, WA
- Average wind speed in October: 4.5mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).
Average humidity in October
Chelan, WA
- Average humidity in October: 66%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (43%).
Average rainfall in October
Chelan, WA
- Average rainfall in October: 0.91"
The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in October
Chelan, WA
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in October
Chelan, WA
- Average snowfall in October: 0.2"
The month with the highest snowfall is December (9.06").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in October
Chelan, WA
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Chelan, WA
- Average daylight in October: 10h and 48min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in October: 6h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in October
Chelan, WA
- Average sunshine days in October: 19.2 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (13.2 days).
Average UV index in October
Chelan, WA
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in October
Chelan, WA
- Average cloud cover in October: 32
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in October
Chelan, WA
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
