Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The coldest period tends to be January, when average temperatures fluctuate between a high of 21.6°F (-5.8°C) and a low of 13.5°F (-10.3°C).Humidity
January is the most humid month, with an average relative humidity of 92%.Rainfall
In Port Chilkoot, in January, it is raining for 15.5 days, with typically 5.51" (140mm) of accumulated precipitation. In Port Chilkoot, during the entire year, the rain falls for 200.4 days and collects up to 48.03" (1220mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Port Chilkoot, in January, snow falls for 14.9 days, with typically accumulated 18.82" (478mm) of snow. Throughout the year, there are 83.4 snowfall days, and 86.57" (2199mm) of snow is accumulated.Daylight
In January, the average length of the day is 7h and 5min.On the first day of the month, sunrise is at 8:56 am and sunset at 3:13 pm. On the last day of January, sunrise is at 8:13 am and sunset at 4:16 pm AKST.
Sunshine
The months with the least sunshine are January and December, with an average of 3.7h of sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Port Chilkoot?
How cold is January?
What is the most humid month in Port Chilkoot?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
Port Chilkoot, AK
- Average high temperature in January: 21.6°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 January: 13.5°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 January
Port Chilkoot, AK
- Average pressure in January: 29.87"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 January
Port Chilkoot, AK
- Average wind speed in January: 6.7mph
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 January
Port Chilkoot, AK
- Average humidity in January: 92%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).
Average rainfall in January
Port Chilkoot, AK
- Average rainfall in January: 5.51"
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 January
Port Chilkoot, AK
- Average rainfall days in January: 15.5 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 January
Port Chilkoot, AK
- Average snowfall in January: 18.82"
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 January
Port Chilkoot, AK
- Average snowfall days in January: 14.9 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 January /
Average sunshine in January
Port Chilkoot, AK
- Average daylight in January: 7h 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 January: 3h and 4min
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 January
Port Chilkoot, AK
- Average sunshine days in January: 7.8 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 January
Port Chilkoot, AK
- Average UV index in January: 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 January
Port Chilkoot, AK
- Average cloud cover in January: 62
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 January
Port Chilkoot, AK
- Average visibility in January: 4mi
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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