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 brings a decrease in the average high-temperature, shifting from a frosty 47.3°F (8.5°C) in September to a wintry 38.1°F (3.4°C). Port Chilkoot's nighttime temperatures in October reveal a minimal variation from the daytime highs, averaging at a freezing cold 31.8°F (-0.1°C).Humidity
The average relative humidity in October is 84%.Rainfall
In October, in Port Chilkoot, the rain falls for 20.2 days. Throughout October, 5.35" (136mm) of precipitation is accumulated. Throughout the year, there are 200.4 rainfall days, and 48.03" (1220mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Port Chilkoot. October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 1.81" (46mm) of snow. In Port Chilkoot, during the entire year, snow falls for 83.4 days and aggregates up to 86.57" (2199mm) of snow.Daylight
In Port Chilkoot, the average length of the day in October is 10h and 9min.On the first day of October, sunrise is at 7:08 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 8:20 am and sunset at 5:10 pm AKDT.
Sunshine
The average sunshine in October is 4.3h.UV index
In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 2 in October translates into the following instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during October?
What is the average humidity in October?
How many days does it rain in October?
When does it start snowing?
What is the average length of the day in October?
When is the sunrise / sunset in October?
How many hours of sunshine does Port Chilkoot have in October?
How high is the UV index in October?
Average temperature in October
Port Chilkoot, AK
- Average high temperature in October: 38.1°F
The warmest month (with the highest average high temperature) is July (56.5°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in October: 31.8°F
The month with the highest average low temperature is August (44.1°F).
The coldest month (with the lowest average low temperature) is February (12.4°F).
Average pressure in October
Port Chilkoot, AK
- Average pressure in October: 29.85"Hg
The month with the highest atmospheric pressure is July (30.01"Hg).
The month with the lowest atmospheric pressure is November (29.81"Hg).
Average wind speed in October
Port Chilkoot, AK
- Average wind speed in October: 5.7mph
The windiest month (with the highest average wind speed) is January (6.7mph).
The calmest month (with the lowest average wind speed) is May (4.7mph).
Average humidity in October
Port Chilkoot, AK
- Average humidity in October: 84%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).
Average rainfall in October
Port Chilkoot, AK
- Average rainfall in October: 5.35"
The wettest month (with the highest rainfall) is November (5.87").
The driest month (with the least rainfall) is June (2.2").
Average rainfall days in October
Port Chilkoot, AK
- Average rainfall days in October: 20.2 days
The month with the highest number of rainy days is October (20.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in October
Port Chilkoot, AK
- Average snowfall in October: 1.81"
The month with the highest snowfall is December (21.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Port Chilkoot, AK
- Average snowfall days in October: 1.6 days
The month with the highest number of snowfall days is December (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Port Chilkoot, AK
- Average daylight in October: 10h and 1min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in October: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in October
Port Chilkoot, AK
- Average sunshine days in October: 9.2 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in October
Port Chilkoot, 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 February, November and December (UV index 1).
Average cloud cover in October
Port Chilkoot, AK
- Average cloud cover in October: 58
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in October
Port Chilkoot, AK
- 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).
Port Chilkoot, Alaska, USA
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