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
The transition into October involves a decrease in the average high-temperature, falling from a refreshing 66.4°F (19.1°C) in September to a cool 54.5°F (12.5°C). Index experiences a steady low-temperature of 40.1°F (4.5°C) throughout October.Humidity
The average relative humidity in October in Index, Washington, is 81%.Rainfall
In Index, in October, it is raining for 17.3 days, with typically 5.35" (136mm) of accumulated precipitation. Throughout the year, in Index, there are 200.6 rainfall days, and 51.65" (1312mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Index.Daylight
In October, the average length of the day in Index, Washington, is 10h and 49min.On the first day of October, sunrise is at 7:06 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:49 pm PDT.
Sunshine
In Index, Washington, the average sunshine in October is 5.1h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during October translates into the following guidance:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Index in October?
What is the average humidity in October in Index?
How much does it rain in Index in October?
When it does not snow in Index?
Does it snow in Index in October?
What is the average length of the day in October in Index?
When is the sunrise / sunset in October in Index?
How long on average sun shines in October in Index?
When is the lowest UV index in Index?
What is the UV index intensity in October in Index?
Average temperature in October
Index, WA
- Average high temperature in October: 54.5°F
The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in October: 40.1°F
The month with the highest average low temperature is August (48°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).
Average pressure in October
Index, WA
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in October
Index, WA
- Average wind speed in October: 3.7mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).
Average humidity in October
Index, WA
- Average humidity in October: 81%
The months with the highest relative humidity are January, February and March (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall in October
Index, WA
- Average rainfall in October: 5.35"
The wettest month (with the highest rainfall) is January (7.8").
The driest month (with the least rainfall) is August (0.79").
Average rainfall days in October
Index, WA
- Average rainfall days in October: 17.3 days
The month with the highest number of rainy days is March (22.3 days).
The month with the least rainy days is August (7.9 days).
Average snowfall in October
Index, WA
- Average snowfall in October: 0"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Index, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (5.2 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
Index, WA
- Average daylight in October: 10h and 5min
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: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in October
Index, WA
- Average sunshine days in October: 12.4 days
The month with the most sunshine days is August (19.9 days).
The month with the least sunshine days is March (7 days).
Average UV index in October
Index, WA
- Average UV index in October: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in October
Index, WA
- Average cloud cover in October: 49
The months with the most cloud cover are March and December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in October
Index, WA
- Average visibility in October: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Index, Washington, USA
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