October weather forecastKetchikan, AK
October
Weather in October
October in Ketchikan ushers in the fall season with cooler temperatures, frequent rain, and shorter days. Reading from 42.1°F (5.6°C) at the lower edge to 48.2°F (9°C) upper end, temperatures signify incoming wintry chills. October's rainfall is hefty, amassing approximately 8.19" (208mm) showing the cloud-laden harbinger of winter. Despite reduced daylight of 10.4 hours, Ketchikan in October delivers a unique blend of autumn charm and scenic fall foliage.Temperature
October's onset brings a negligible change in high-temperatures, falling from a mild 56.3°F (13.5°C) in September to a frosty 48.2°F (9°C). Ketchikan, during the October nights, maintains an average temperature of 42.1°F (5.6°C), closely aligned with its daytime readings.Humidity
The average relative humidity in October is 85%.Rainfall
In Ketchikan, during October, the rain falls for 20.3 days and regularly aggregates up to 8.19" (208mm) of precipitation. Throughout the year, there are 221.8 rainfall days, and 80" (2032mm) of precipitation is accumulated.Snowfall
In Ketchikan, snow does not fall in June through October.Ocean temperature
In October, the average ocean temperature is 50.5°F (10.3°C).Note: Engaging in a swim in 50.5°F (10.3°C) can threaten life. Brief exposure to 55.4°F (13°C) waters is uneasy, and submersion below 50°F (10°C) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
The average length of the day in October is 10h and 25min.On the first day of the month, sunrise is at 6:51 am and sunset at 6:20 pm. On the last day of October, sunrise is at 7:51 am and sunset at 5:09 pm AKDT.
Sunshine
In Ketchikan, the average sunshine in October is 4.2h.UV index
In Ketchikan, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 2 in October leads to these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Ketchikan, AK
- Average high temperature in October: 48.2°F
The warmest months (with the highest average high temperature) are July and August (60.8°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in October: 42.1°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is February (30.6°F).
Average pressure in October
Ketchikan, AK
- Average pressure in October: 29.88"Hg
The month with the highest atmospheric pressure is July (30.06"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).
Average wind speed in October
Ketchikan, AK
- Average wind speed in October: 7.1mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in October
Ketchikan, AK
- Average humidity in October: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (82%).
Average rainfall in October
Ketchikan, AK
- Average rainfall in October: 8.19"
The wettest month (with the highest rainfall) is January (9.69").
The driest month (with the least rainfall) is May (3.46").
Average rainfall days in October
Ketchikan, AK
- Average rainfall days in October: 20.3 days
The month with the highest number of rainy days is November (21.4 days).
The month with the least rainy days is February (14.2 days).
Average snowfall in October
Ketchikan, AK
- Average snowfall in October: 0"
The month with the highest snowfall is February (13.11").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in October
Ketchikan, AK
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is March (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in October
Ketchikan, AK
- Average sea temperature in October: 50.5°F
The best month for swimming (with the highest average sea temperature) is August (55.9°F).
The coldest month (with the lowest average sea temperature) is March (42.5°F).
Average daylight in October /
Average sunshine in October
Ketchikan, AK
- Average daylight in October: 10h and 24min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in October: 4h and 12min
The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in October
Ketchikan, AK
- Average sunshine days in October: 9.3 days
The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is November (5.6 days).
Average UV index in October
Ketchikan, AK
- Average UV index in October: 2
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in October
Ketchikan, AK
- Average cloud cover in October: 60
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 55).
Average visibility in October
Ketchikan, AK
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
