April weather forecastMarshalltown, IA
April
Weather in April
In April, Marshalltown welcomes the heart of the spring season. Significant changes, like the increase in rainfall to 1.93" (49mm), make the weather predominantly wet, but not cold as in previous months. The atmosphere is mostly humid, sparking the burst of greenery around the city. Plenty of daylight ensures that the city gets to bask under the delightful spring sun. The steady temperatures contribute to a more comfortable environment, allowing for outdoor activities.Temperature
The onset of April brings a rise in the average high-temperature, elevating from a frosty 44.8°F (7.1°C) in March to a mild 57.7°F (14.3°C). During April, Marshalltown witnesses a consistent average low-temperature of 41.4°F (5.2°C).Humidity
In Marshalltown, Iowa, the average relative humidity in April is 73%.Rainfall
In Marshalltown, in April, during 13.2 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Marshalltown, Iowa, during the entire year, the rain falls for 118.2 days and collects up to 16.18" (411mm) of precipitation.Snowfall
Months with snowfall in Marshalltown, Iowa, are January through May, October through December. In Marshalltown, during April, snow falls for 1.3 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, there are 34.6 snowfall days, and 6.97" (177mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 23min.On the first day of April in Marshalltown, sunrise is at 6:52 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:09 pm CDT.
Sunshine
In Marshalltown, the average sunshine in April is 7.7h.UV index
In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 during April translates into the following guidance:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Marshalltown, IA
- Average high temperature in April: 57.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in April: 41.4°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in April
Marshalltown, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Marshalltown, IA
- Average wind speed in April: 10.8mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in April
Marshalltown, IA
- Average humidity in April: 73%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Marshalltown, IA
- Average rainfall in April: 1.93"
The wettest month (with the highest rainfall) is June (2.56").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in April
Marshalltown, IA
- Average rainfall days in April: 13.2 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in April
Marshalltown, IA
- Average snowfall in April: 0.31"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Marshalltown, IA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Marshalltown, IA
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Marshalltown, IA
- Average sunshine days in April: 13.8 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in April
Marshalltown, IA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in April
Marshalltown, IA
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in April
Marshalltown, IA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
