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 begins with an average high-temperature of a still cold 32.7°F (0.4°C), reflecting close similarity to the preceding month. In Petersburg, the nocturnal temperatures throughout January show a marginal dip from the daytime averages, settling at a subzero cold 27.3°F (-2.6°C).Humidity
January and August, with an average relative humidity of 86%, are the most humid months.Rainfall
In Petersburg, in January, it is raining for 15.8 days, with typically 6.02" (153mm) of accumulated precipitation. Throughout the year, there are 197.9 rainfall days, and 53.03" (1347mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Petersburg, in January, during 8.6 snowfall days, 11.73" (298mm) of snow is typically accumulated. In Petersburg, during the entire year, snow falls for 47.5 days and aggregates up to 58.23" (1479mm) of snow.Ocean temperature
In January, the average ocean temperature in Petersburg is 41.7°F (5.4°C).Note: You can swim in 41.7°F (5.4°C) below 50°F (10°C) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 55.4°F (13°C) without it is tough.
Daylight
In Petersburg, Alaska, the average length of the day in January is 7h and 35min.On the first day of January in Petersburg, sunrise is at 8:28 am and sunset at 3:22 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:18 pm AKST.
Sunshine
The months with the least sunshine are January and November, with an average of 3.4h of sunshine.UV index
In Petersburg, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
How cold is it in Petersburg in January?
What are the most humid months in Petersburg?
What is the average humidity in January in Petersburg?
How many days does it rain in January in Petersburg?
How many days does it snow in January in Petersburg?
How cold is the water in January in Petersburg?
What is the average length of the day in January in Petersburg?
When are sunrise and sunset in January in Petersburg?
What are the months with the least sunshine in Petersburg?
How many hours of sunshine does Petersburg have in January?
What is the UV index intensity in January in Petersburg?
Average temperature in January
Petersburg, AK
- Average high temperature in January: 32.7°F
The warmest month (with the highest average high temperature) is July (59.7°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in January: 27.3°F
The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).
Average pressure in January
Petersburg, AK
- Average pressure in January: 29.85"Hg
The month with the highest atmospheric pressure is July (30.05"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).
Average wind speed in January
Petersburg, AK
- Average wind speed in January: 8.2mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is July (3.9mph).
Average humidity in January
Petersburg, AK
- Average humidity in January: 86%
The months with the highest relative humidity are January and August (86%).
The month with the lowest relative humidity is May (81%).
Average rainfall in January
Petersburg, AK
- Average rainfall in January: 6.02"
The wettest month (with the highest rainfall) is October (6.3").
The driest month (with the least rainfall) is May (2.01").
Average rainfall days in January
Petersburg, AK
- Average rainfall days in January: 15.8 days
The month with the highest number of rainy days is October (20.1 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in January
Petersburg, AK
- Average snowfall in January: 11.73"
The month with the highest snowfall is March (13.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Petersburg, AK
- Average snowfall days in January: 8.6 days
The month with the highest number of snowfall days is March (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Petersburg, AK
- Average sea temperature in January: 41.8°F
The best month for swimming (with the highest average sea temperature) is August (54.2°F).
The coldest month (with the lowest average sea temperature) is March (41°F).
Average daylight in January /
Average sunshine in January
Petersburg, AK
- Average daylight in January: 7h and 4min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is May (Average sunshine: 7h and 24min).
The months with the least sunshine are January and November (Average sunshine: 3h and 24min).
Average sunshine days in January
Petersburg, AK
- Average sunshine days in January: 10.5 days
The month with the most sunshine days is December (12.5 days).
The month with the least sunshine days is November (8 days).
Average UV index in January
Petersburg, AK
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in January
Petersburg, AK
- Average cloud cover in January: 66
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are February and May (Cloud cover 54).
Average visibility in January
Petersburg, AK
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Petersburg, Alaska, USA
Weather forecast for your location
2. Allow the app to use your location
