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
Port Heiden witnesses the coldest weather in January, with temperatures averaging a high of 28.9°F (-1.7°C) and a low of 23.4°F (-4.8°C).Humidity
January is the most humid month, with an average relative humidity of 88%.Rainfall
In Port Heiden, in January, during 10.2 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Port Heiden, during the entire year, the rain falls for 160.7 days and collects up to 16.57" (421mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Port Heiden, in January, snow falls for 14.5 days, with typically accumulated 3.78" (96mm) of snow. Throughout the year, there are 83.4 snowfall days, and 23.94" (608mm) of snow is accumulated.Daylight
The average length of the day in January is 7h and 34min.On the first day of the month, sunrise is at 10:11 am and sunset at 5:04 pm. On the last day of January, in Port Heiden, Alaska, sunrise is at 9:35 am and sunset at 6:00 pm AKST.
Sunshine
The average sunshine in January is 2.5h.UV index
In Port Heiden, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. When the Sun is at its strongest around midday, find shade and limit exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Port Heiden have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
How high is the UV index in January?
Average temperature in January
Port Heiden, AK
- Average high temperature in January: 28.9°F
The warmest month (with the highest average high temperature) is August (56.8°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is August (49.1°F).
The coldest months (with the lowest average low temperature) are January and March (23.4°F).
Average pressure in January
Port Heiden, AK
- Average pressure in January: 29.56"Hg
The month with the highest atmospheric pressure is July (29.97"Hg).
The month with the lowest atmospheric pressure is December (29.54"Hg).
Average wind speed in January
Port Heiden, AK
- Average wind speed in January: 13.2mph
The windiest month (with the highest average wind speed) is December (14.8mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in January
Port Heiden, AK
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (78%).
Average rainfall in January
Port Heiden, AK
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is June (0.83").
Average rainfall days in January
Port Heiden, AK
- Average rainfall days in January: 10.2 days
The month with the highest number of rainy days is September (19.2 days).
The month with the least rainy days is March (7.6 days).
Average snowfall in January
Port Heiden, AK
- Average snowfall in January: 3.78"
The month with the highest snowfall is December (5.71").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Port Heiden, AK
- Average snowfall days in January: 14.5 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Port Heiden, AK
- Average daylight in January: 7h and 4min
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 54min).
- Average sunshine in January: 2h and 3min
The month with the most sunshine is May (Average sunshine: 7h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in January
Port Heiden, AK
- Average sunshine days in January: 9.3 days
The month with the most sunshine days is May (13 days).
The month with the least sunshine days is November (6 days).
Average UV index in January
Port Heiden, AK
- Average UV index in January: 2
The months with the highest UV index are May, June, July, August and September (UV index 3).
The months with the lowest UV index are February, March, November and December (UV index 1).
Average cloud cover in January
Port Heiden, AK
- Average cloud cover in January: 65
The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is May (Cloud cover 59).
Average visibility in January
Port Heiden, AK
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
Port Heiden, Alaska, USA
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