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
October in Issaquah shows a mild decline in the average high-temperature, falling from September's agreeable 70°F (21.1°C) to a refreshing 58.6°F (14.8°C). In the month of October, Issaquah experiences an average low-temperature of 43.7°F (6.5°C).Humidity
In Issaquah, the average relative humidity in October is 79%.Rainfall
In Issaquah, in October, during 11.8 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, in Issaquah, there are 127.4 rainfall days, and 12.52" (318mm) of precipitation is accumulated.Snowfall
In Issaquah, snow does not fall in May through October.Daylight
In Issaquah, the average length of the day in October is 10h and 50min.On the first day of October, sunrise is at 7:08 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:51 pm PDT.
Sunshine
In Issaquah, Washington, the average sunshine in October is 5.4h.UV index
In Issaquah, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, an average UV index of 3 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the average October temperature in Issaquah?
What is the average humidity in October in Issaquah?
How many days does it rain in October in Issaquah?
When it does not snow in Issaquah?
Does it snow in Issaquah in October?
How many hours of daylight does Issaquah have in October?
What time are sunrise and sunset in October in Issaquah?
How long on average sun shines in October in Issaquah?
What is the UV index reading in October in Issaquah?
Average temperature in October
Issaquah, WA
- Average high temperature in October: 58.6°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in October: 43.7°F
The month with the highest average low temperature is August (51.4°F).
The coldest months (with the lowest average low temperature) are February and December (33.4°F).
Average pressure in October
Issaquah, WA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in October
Issaquah, WA
- Average wind speed in October: 4.1mph
The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in October
Issaquah, WA
- Average humidity in October: 79%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in October
Issaquah, WA
- Average rainfall in October: 1.3"
The wettest month (with the highest rainfall) is December (2.01").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in October
Issaquah, WA
- Average rainfall days in October: 11.8 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (4.3 days).
Average snowfall in October
Issaquah, WA
- Average snowfall in October: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Issaquah, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Issaquah, WA
- Average daylight in October: 10h and 5min
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: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in October
Issaquah, WA
- Average sunshine days in October: 17.4 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in October
Issaquah, WA
- Average UV index in October: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Issaquah, WA
- Average cloud cover in October: 45
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Issaquah, WA
- Average visibility in October: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February and December (4mi).
Issaquah, Washington, USA
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