October weather forecastRock Island, WA
October
Weather in October
October, like September, is another mild autumn month in Rock Island, Washington, with an average temperature ranging between min 39.7°F (4.3°C) and max 55.9°F (13.3°C).Temperature
The shift into October is characterized by a noticeable reduction in the average high-temperature, decreasing from September's agreeable 71.6°F (22°C) to a refreshing 55.9°F (13.3°C). October nights observe an average temperature dip to a wintry 39.7°F (4.3°C).Humidity
The average relative humidity in October is 65%.Rainfall
In Rock Island, during October, the rain falls for 11.1 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 111.7 rainfall days, and 10.71" (272mm) of precipitation is accumulated.Snowfall
May through August and October are months without snowfall.Daylight
The average length of the day in October is 10h and 50min.On the first day of October, sunrise is at 7:00 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:44 pm PDT.
Sunshine
In October, the average sunshine is 6.6h.UV index
In Rock Island, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In October, the UV index of 3 transforms into the following advice:
Guard yourself - Avoiding sunburn is suggested. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Rock Island, WA
- Average high temperature in October: 55.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in October: 39.7°F
The month with the highest average low temperature is August (56.3°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in October
Rock Island, WA
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in October
Rock Island, WA
- Average wind speed in October: 4.7mph
The windiest month (with the highest average wind speed) is June (6.5mph).
The calmest month (with the lowest average wind speed) is December (3.7mph).
Average humidity in October
Rock Island, WA
- Average humidity in October: 65%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are July and August (44%).
Average rainfall in October
Rock Island, WA
- Average rainfall in October: 0.98"
The wettest months (with the highest rainfall) are January and December (1.57").
The driest months (with the least rainfall) are July and August (0.24").
Average rainfall days in October
Rock Island, WA
- Average rainfall days in October: 11.1 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in October
Rock Island, WA
- Average snowfall in October: 0"
The month with the highest snowfall is December (5.98").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in October
Rock Island, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in October /
Average sunshine in October
Rock Island, 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 36min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in October
Rock Island, WA
- Average sunshine days in October: 18.5 days
The month with the most sunshine days is July (25.5 days).
The month with the least sunshine days is February (12.6 days).
Average UV index in October
Rock Island, WA
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Rock Island, WA
- Average cloud cover in October: 29
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in October
Rock Island, 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 months with the lowest visibility are January and December (4mi).
