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 sea temperature 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
January's arrival shows an average high-temperature of a still cold 35.1°F (1.7°C), hardly different from the previous month. Night temperatures during January experience a slight downturn, averaging a freezing cold 31.6°F (-0.2°C).Humidity
In January, the average relative humidity is 81%.Rainfall
In January, the rain falls for 12.6 days. Throughout January, 3.39" (86mm) of precipitation is accumulated. In Unalaska, during the entire year, the rain falls for 198.8 days and collects up to 33.78" (858mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall in Unalaska, Alaska. Snow falls for 14.2 days and accumulates 6.97" (177mm) of snow.Ocean temperature
In Unalaska, in January, the average water temperature is 39.6°F (4.2°C).Note: In swimming exercises, this state is seen as life-threatening and poses serious dangers. The painful sensation of the cold water induces immediate hyperventilation. A specialized swimsuit is required to limit thermal damage.
Daylight
In January, the average length of the day in Unalaska is 8h and 7min.On the first day of the month, sunrise is at 10:24 am and sunset at 5:55 pm. On the last day of January, in Unalaska, sunrise is at 9:54 am and sunset at 6:45 pm AKST.
Sunshine
In Unalaska, the average sunshine in January is 2.6h.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
How cold is it in Unalaska in January?
What is the average humidity in January in Unalaska?
How much does it rain in Unalaska in January?
When does it snow the most in Unalaska?
How many days does it snow in January in Unalaska?
What is the ocean temperature in January in Unalaska?
What is the average length of the day in January in Unalaska?
When are sunrise and sunset in January in Unalaska?
How long on average sun shines in January in Unalaska?
What is the UV index reading in January in Unalaska?
Average temperature in January
Unalaska, AK
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is August (53.2°F).
The month with the lowest average high temperature is March (34.7°F).
- Average low temperature in January: 31.6°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is March (30.7°F).
Average pressure in January
Unalaska, AK
- Average pressure in January: 29.5"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is January (29.5"Hg).
Average wind speed in January
Unalaska, AK
- Average wind speed in January: 15.9mph
The windiest months (with the highest average wind speed) are November and December (16.5mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in January
Unalaska, AK
- Average humidity in January: 81%
The month with the highest relative humidity is July (91%).
The months with the lowest relative humidity are November and December (80%).
Average rainfall in January
Unalaska, AK
- Average rainfall in January: 3.39"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in January
Unalaska, AK
- Average rainfall days in January: 12.6 days
The month with the highest number of rainy days is October (21.8 days).
The month with the least rainy days is February (11.1 days).
Average snowfall in January
Unalaska, AK
- Average snowfall in January: 6.97"
The month with the highest snowfall is January (6.97").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Unalaska, AK
- Average snowfall days in January: 14.2 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Unalaska, AK
- Average sea temperature in January: 39.5°F
The best month for swimming (with the highest average sea temperature) is August (50.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in January /
Average sunshine in January
Unalaska, AK
- Average daylight in January: 8h and 1min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in January: 2h and 4min
The month with the most sunshine is June (Average sunshine: 5h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in January
Unalaska, AK
- Average sunshine days in January: 4.5 days
The month with the most sunshine days is August (9.7 days).
The month with the least sunshine days is April (3.8 days).
Average UV index in January
Unalaska, AK
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 3).
The months with the lowest UV index are February, March, April and November (UV index 1).
Average cloud cover in January
Unalaska, AK
- Average cloud cover in January: 73
The month with the most cloud cover is July (Cloud cover 74).
The months with the least cloud cover are September and October (Cloud cover 66).
Average visibility in January
Unalaska, AK
- Average visibility in January: 5mi
The months with the highest visibility are May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, July and December (5mi).
Unalaska, Alaska, USA
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