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
Saint Olaf in April experiences an increase in the average high-temperature, moving from March's wintry 42.3°F (5.7°C) to a cool 54.5°F (12.5°C). During April, Saint Olaf records an average temperature of 38.1°F (3.4°C) at night.Humidity
The average relative humidity in April is 76%.Rainfall
In April, the rain falls for 15.6 days. Throughout April, 3.23" (82mm) of precipitation is accumulated. In Saint Olaf, during the entire year, the rain falls for 138 days and collects up to 29.21" (742mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Saint Olaf, during April, snow falls for 2.3 days and regularly aggregates up to 1.3" (33mm) of snow. In Saint Olaf, Iowa, during the entire year, snow falls for 48.5 days and aggregates up to 19.76" (502mm) of snow.Daylight
In April, the average length of the day is 13h and 26min.On the first day of April, sunrise is at 6:46 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:05 pm CDT.
Sunshine
In April, the average sunshine is 7.4h.UV index
In Saint Olaf, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 4 in April translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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 in Saint Olaf?
How much does it rain in April?
How much does it snow in Saint Olaf in April?
How many hours of daylight does Saint Olaf have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Saint Olaf, IA
- Average high temperature in April: 54.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in April: 38.1°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in April
Saint Olaf, IA
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Saint Olaf, IA
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in April
Saint Olaf, IA
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Saint Olaf, IA
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in April
Saint Olaf, IA
- Average rainfall days in April: 15.6 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in April
Saint Olaf, IA
- Average snowfall in April: 1.3"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Saint Olaf, IA
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Saint Olaf, IA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 7h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Saint Olaf, IA
- Average sunshine days in April: 11.6 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in April
Saint Olaf, IA
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Saint Olaf, IA
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Saint Olaf, IA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Saint Olaf, Iowa, USA
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