Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Petersburg's weather in April shows a minor rise in the average high-temperature, moving slightly up from March's icy 36.9°F (2.7°C) to a frosty 43.3°F (6.3°C). April nights register a minor temperature decline, steadying at a cold 34.3°F (1.3°C).Humidity
In Petersburg, the average relative humidity in April is 83%.Rainfall
In April, the rain falls for 18.1 days. Throughout April, 3.54" (90mm) of precipitation is accumulated. Throughout the year, in Petersburg, 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 April, in Petersburg, Alaska, it is snowing for 3.8 days. Throughout April, 2.6" (66mm) of snow is 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 Petersburg, Alaska, in April, the average water temperature is 42.4°F (5.8°C).Note: To swim in 42.4°F (5.8°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
In Petersburg, the average length of the day in April is 14h and 20min.On the first day of April in Petersburg, sunrise is at 6:18 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 8:33 pm AKDT.
Sunshine
The average sunshine in April is 6.7h.UV index
In April, the average daily maximum UV index in Petersburg is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in April converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
Is it cold in Petersburg during April?
What is the average humidity in April in Petersburg?
How much does it rain in Petersburg in April?
How much does it snow in Petersburg in April?
What is the water temperature in April in Petersburg?
What is the average length of the day in April in Petersburg?
When are sunrise and sunset in April in Petersburg?
How many hours of sunshine does Petersburg have in April?
What is the UV index reading in April in Petersburg?
Average temperature in April
Petersburg, AK
- Average high temperature in April: 43.3°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 April: 34.3°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 April
Petersburg, AK
- Average pressure in April: 29.93"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 April
Petersburg, AK
- Average wind speed in April: 5.7mph
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 April
Petersburg, AK
- Average humidity in April: 83%
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 April
Petersburg, AK
- Average rainfall in April: 3.54"
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 April
Petersburg, AK
- Average rainfall days in April: 18.1 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 April
Petersburg, AK
- Average snowfall in April: 2.6"
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 April
Petersburg, AK
- Average snowfall days in April: 3.8 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 April
Petersburg, AK
- Average sea temperature in April: 42.4°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 April /
Average sunshine in April
Petersburg, AK
- Average daylight in April: 14h and 2min
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 April: 6h and 4min
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 April
Petersburg, AK
- Average sunshine days in April: 9.1 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 April
Petersburg, AK
- Average UV index in April: 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 April
Petersburg, AK
- Average cloud cover in April: 58
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 April
Petersburg, AK
- Average visibility in April: 6mi
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
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