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
In Waterloo, stepping into April brings a temperature increase, moving up from March's chilly 45.5°F (7.5°C) to a moderate 56.8°F (13.8°C). An average low-temperature of 40.1°F (4.5°C) is expected during April.Humidity
The average relative humidity in April is 77%.Rainfall
In April, the rain falls for 16 days. Throughout April, 3.03" (77mm) of precipitation is accumulated. In Waterloo, during the entire year, the rain falls for 157.1 days and collects up to 24.09" (612mm) of precipitation.Snowfall
Months with snowfall in Waterloo are January through May, October through December. In Waterloo, in April, snow falls for 1.8 days, with typically accumulated 0.98" (25mm) of snow. In Waterloo, during the entire year, snow falls for 54.1 days and aggregates up to 13.43" (341mm) of snow.Daylight
In Waterloo, the average length of the day in April is 13h and 22min.On the first day of April in Waterloo, sunrise is at 7:21 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 8:37 pm EDT.
Sunshine
In Waterloo, the average sunshine in April is 6.9h.UV index
In Waterloo, Indiana, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In April, the maximum UV index of 3 suggests this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Waterloo in April?
What is the average humidity in April in Waterloo?
How many days does it rain in April in Waterloo?
How many days does it snow in April in Waterloo?
How many hours of daylight does Waterloo have in April?
What time are sunrise and sunset in April in Waterloo?
How long on average sun shines in April in Waterloo?
How high is the UV index in April in Waterloo?
Average temperature in April
Waterloo, IN
- Average high temperature in April: 56.8°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in April: 40.1°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in April
Waterloo, IN
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Waterloo, IN
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in April
Waterloo, IN
- Average humidity in April: 77%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in April
Waterloo, IN
- Average rainfall in April: 3.03"
The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are January and December (1.34").
Average rainfall days in April
Waterloo, IN
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in April
Waterloo, IN
- Average snowfall in April: 0.98"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Waterloo, IN
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Waterloo, IN
- 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 12min).
- Average sunshine in April: 6h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in April
Waterloo, IN
- Average sunshine days in April: 10.8 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in April
Waterloo, IN
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Waterloo, IN
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in April
Waterloo, IN
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Waterloo, Indiana, USA
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