October weather forecastSitka, AK
October
Weather in October
October maintains the autumn rhythm in Sitka's weather with continually decreasing temperatures. Rainfall holds its course at 9.02" (229mm), complimenting the crisp fall air. There's an increase in wind speed, adding a biting feel to the dropping temperatures. With decreases in daylight and sunshine hours, Sitka starts to brace for winter's onset. October, hence, is a month of being caught between the remnants of a receding autumn and an approaching winter.Temperature
October signifies a gentle decline in Sitka's average high-temperature, easing from a fresh 54.1°F (12.3°C) in September to a chilly 46.4°F (8°C). With a barely noticeable fluctuation in temperature, Sitka reaches an average low of 41.7°F (5.4°C) during the October nights.Humidity
The average relative humidity in October is 85%.Rainfall
In Sitka, in October, during 23.5 rainfall days, 9.02" (229mm) of precipitation is typically accumulated. Throughout the year, there are 243.6 rainfall days, and 82.76" (2102mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sitka are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 52.4 snowfall days, and 63.58" (1615mm) of snow is accumulated.Daylight
In October, the average length of the day is 10h and 19min.On the first day of the month, sunrise is at 7:06 am and sunset at 6:34 pm. On the last day of October, sunrise is at 8:11 am and sunset at 5:18 pm AKDT.
Sunshine
In October, the average sunshine is 3.5h.UV index
The average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In October, the UV index of 2 transforms into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Sitka, AK
- Average high temperature in October: 46.4°F
The warmest month (with the highest average high temperature) is August (57.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in October: 41.7°F
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is February (29.7°F).
Average pressure in October
Sitka, AK
- Average pressure in October: 29.81"Hg
The month with the highest atmospheric pressure is July (30.05"Hg).
The month with the lowest atmospheric pressure is November (29.72"Hg).
Average wind speed in October
Sitka, AK
- Average wind speed in October: 8.1mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in October
Sitka, AK
- Average humidity in October: 85%
The month with the highest relative humidity is August (89%).
The months with the lowest relative humidity are February and March (83%).
Average rainfall in October
Sitka, AK
- Average rainfall in October: 9.02"
The wettest month (with the highest rainfall) is November (10.16").
The driest month (with the least rainfall) is May (3.82").
Average rainfall days in October
Sitka, AK
- Average rainfall days in October: 23.5 days
The month with the highest number of rainy days is October (23.5 days).
The month with the least rainy days is February (14.6 days).
Average snowfall in October
Sitka, AK
- Average snowfall in October: 0.12"
The month with the highest snowfall is March (17.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Sitka, AK
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is March (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Sitka, AK
- Average daylight in October: 10h and 18min
The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).
- Average sunshine in October: 3h and 30min
The month with the most sunshine is May (Average sunshine: 6h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in October
Sitka, AK
- Average sunshine days in October: 6.9 days
The month with the most sunshine days is May (8.8 days).
The month with the least sunshine days is June (4.8 days).
Average UV index in October
Sitka, AK
- Average UV index in October: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in October
Sitka, AK
- Average cloud cover in October: 63
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are February, May and September (Cloud cover 60).
Average visibility in October
Sitka, AK
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, September, October, November and December (6mi).
The months with the lowest visibility are January, June, July and August (5mi).
