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
Harvey's transition into April is marked by a temperature shift, moving from a frosty 47.5°F (8.6°C) in March to a refreshing 59.5°F (15.3°C). Throughout April, Harvey encounters an average temperature drop to an icy 42.4°F (5.8°C).Humidity
In Harvey, Iowa, the average relative humidity in April is 73%.Rainfall
In Harvey, Iowa, in April, during 11.5 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Harvey, during the entire year, the rain falls for 109.6 days and collects up to 12.28" (312mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Harvey, during April, snow falls for 1.2 days and regularly aggregates up to 0.39" (10mm) of snow. In Harvey, during the entire year, snow falls for 29.7 days and aggregates up to 5.16" (131mm) of snow.Daylight
The average length of the day in April in Harvey is 13h and 21min.On the first day of April, sunrise is at 6:53 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:08 pm CDT.
Sunshine
In Harvey, the average sunshine in April is 7.9h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 4 in April transforms into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April?
How many days does it rain in April?
How many days does it snow in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Harvey have in April?
What is the UV index intensity in April?
Average temperature in April
Harvey, IA
- Average high temperature in April: 59.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in April
Harvey, 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
Harvey, IA
- Average wind speed in April: 10.4mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in April
Harvey, IA
- Average humidity in April: 73%
The months with the highest relative humidity are January, February, June and July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Harvey, IA
- Average rainfall in April: 1.06"
The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are January and February (0.43").
Average rainfall days in April
Harvey, IA
- Average rainfall days in April: 11.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in April
Harvey, IA
- Average snowfall in April: 0.39"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Harvey, IA
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Harvey, 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: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in April
Harvey, IA
- Average sunshine days in April: 15.6 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in April
Harvey, IA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Harvey, IA
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in April
Harvey, 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).
Harvey, Iowa, USA
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