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 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
The rise of average high-temperatures is seen in April, with an increase from a frosty 48.9°F (9.4°C) in March to a mild 60.4°F (15.8°C). Grand River's temperature in April lowers to a consistent average of 43°F (6.1°C) during the nights.Humidity
The average relative humidity in April is 74%.Rainfall
In Grand River, Iowa, in April, it is raining for 14.1 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, in Grand River, Iowa, there are 132.4 rainfall days, and 20.24" (514mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Grand River, Iowa, in April, during 1.3 snowfall days, 1.54" (39mm) of snow is typically accumulated. In Grand River, during the entire year, snow falls for 30.2 days and aggregates up to 10.16" (258mm) of snow.Daylight
In Grand River, the average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:41 pm. On the last day of April, sunrise is at 6:14 am and sunset at 8:11 pm CDT.
Sunshine
In Grand River, Iowa, the average sunshine in April is 8.2h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 4 during April translates into the following directions:
Be vigilant - Preventing sunburn is recommended. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What is the usual temperature for Grand River in April?
What is the average humidity in April in Grand River?
How many days does it rain in April in Grand River?
How much does it snow in Grand River in April?
What is the average length of the day in April in Grand River?
When are sunrise and sunset in April in Grand River?
How long on average sun shines in April in Grand River?
How high is the UV index in April in Grand River?
Average temperature in April
Grand River, IA
- Average high temperature in April: 60.4°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in April: 43°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in April
Grand River, IA
- Average pressure in April: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Grand River, IA
- Average wind speed in April: 10.3mph
The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in April
Grand River, IA
- Average humidity in April: 74%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Grand River, IA
- Average rainfall in April: 1.81"
The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and December (0.67").
Average rainfall days in April
Grand River, IA
- Average rainfall days in April: 14.1 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in April
Grand River, IA
- Average snowfall in April: 1.54"
The month with the highest snowfall is January (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Grand River, IA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Grand River, IA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Grand River, IA
- Average sunshine days in April: 13.6 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in April
Grand River, IA
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Grand River, IA
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in April
Grand River, IA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Grand River, Iowa, USA
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