April weather forecastGrand Marais, MI
April
Weather in April
April, often seen as the harbinger of spring in Grand Marais, brings a sharp drop in snowfall and a conspicuous rise in temperatures. The climate sees a remarkable increase in daylight duration and sunshine hours. Lower wind speeds create a pleasant ambiance, while the fairly strong sea temperatures hint at the influence of nearby water bodies. The temperature evolution exhibits an extended span from 30.9°F (-0.6°C) to 43.5°F (6.4°C), and there's a significant decrease in snowfall to 4.33" (110mm). Notably, the weather experiences its highest rainfall of the year, heralding the wet season.Temperature
April brings an increase in the average high-temperature, progressing from a cold 32.4°F (0.2°C) in March to a chilly 43.5°F (6.4°C). An average low-temperature of 30.9°F (-0.6°C) is recorded during the nights in April.Humidity
The average relative humidity in April in Grand Marais is 79%.Rainfall
In April, the rain falls for 11.1 days. Throughout April, 2.09" (53mm) of precipitation is accumulated. In Grand Marais, during the entire year, the rain falls for 123.2 days and collects up to 22.17" (563mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Grand Marais. In Grand Marais, in April, snow falls for 8.5 days, with typically accumulated 4.33" (110mm) of snow. In Grand Marais, during the entire year, snow falls for 108.1 days and aggregates up to 48.31" (1227mm) of snow.Ocean temperature
March and April, with an average ocean temperature of 35.6°F (2°C), are months with the coldest seawater in Grand Marais.Note: In the context of swimming, this situation is viewed as life-threatening and poses serious risks. The sensation of cold is painfully acute, leading to rapid hyperventilation. Using a specialized swimsuit is imperative to decrease thermal injury.
Daylight
In April, the average length of the day in Grand Marais is 13h and 37min.On the first day of April in Grand Marais, sunrise is at 7:21 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:52 pm EDT.
Sunshine
The average sunshine in April is 6.3h.UV index
The average daily maximum UV index in April in Grand Marais is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 3 in April transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Grand Marais, MI
- Average high temperature in April: 43.5°F
The warmest month (with the highest average high temperature) is July (72.1°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in April: 30.9°F
The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is February (13.6°F).
Average pressure in April
Grand Marais, MI
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Grand Marais, MI
- Average wind speed in April: 9mph
The windiest month (with the highest average wind speed) is November (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in April
Grand Marais, MI
- Average humidity in April: 79%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (73%).
Average rainfall in April
Grand Marais, MI
- Average rainfall in April: 2.09"
The wettest month (with the highest rainfall) is October (2.8").
The driest month (with the least rainfall) is March (1.5").
Average rainfall days in April
Grand Marais, MI
- Average rainfall days in April: 11.1 days
The month with the highest number of rainy days is October (15.3 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in April
Grand Marais, MI
- Average snowfall in April: 4.33"
The month with the highest snowfall is January (10.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Grand Marais, MI
- Average snowfall days in April: 8.5 days
The month with the highest number of snowfall days is January (24.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Grand Marais, MI
- Average sea temperature in April: 36°F
The best month for swimming (with the highest average sea temperature) is August (59°F).
The coldest months (with the lowest average sea temperature) are March and April (36°F).
Average daylight in April /
Average sunshine in April
Grand Marais, MI
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 6h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in April
Grand Marais, MI
- Average sunshine days in April: 13 days
The month with the most sunshine days is June (16.3 days).
The month with the least sunshine days is January (5.8 days).
Average UV index in April
Grand Marais, MI
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Grand Marais, MI
- Average cloud cover in April: 55
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in April
Grand Marais, MI
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
