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
As Sioux City transitions into April, a rise in the average high-temperature is observed, moving from a chilly 46.8°F (8.2°C) in March to a mild 58.6°F (14.8°C). Sioux City observes an average low-temperature of 41.5°F (5.3°C) during April nights.Humidity
In April, the average relative humidity in Sioux City is 67%.Rainfall
In Sioux City, Iowa, during April, the rain falls for 11.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, in Sioux City, there are 102.3 rainfall days, and 12.91" (328mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sioux City are January through April, October through December. April is the last month it regularly snows in Sioux City, Iowa. During 1.4 snowfall days, in April, Sioux City aggregates 0.59" (15mm) of snow. Throughout the year, in Sioux City, Iowa, there are 31.1 snowfall days, and 6.85" (174mm) of snow is accumulated.Daylight
The average length of the day in April in Sioux City is 13h and 25min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of April, sunrise is at 6:20 am and sunset at 8:24 pm CDT.
Sunshine
In April, the average sunshine in Sioux City is 8.1h.UV index
The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during April translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What is the usual temperature for Sioux City in April?
What is the average humidity in April in Sioux City?
How much does it rain in Sioux City in April?
What is the last month it snows in Sioux City?
What is the average length of the day in April in Sioux City?
When is the sunrise / sunset in April in Sioux City?
How many hours of sunshine does Sioux City have in April?
What is the UV index reading in April in Sioux City?
Average temperature in April
Sioux City, IA
- Average high temperature in April: 58.6°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in April: 41.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in April
Sioux City, 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 (29.86"Hg).
Average wind speed in April
Sioux City, IA
- Average wind speed in April: 11mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in April
Sioux City, IA
- Average humidity in April: 67%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (65%).
Average rainfall in April
Sioux City, IA
- Average rainfall in April: 1.57"
The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are January and February (0.39").
Average rainfall days in April
Sioux City, IA
- Average rainfall days in April: 11.5 days
The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (2.6 days).
Average snowfall in April
Sioux City, IA
- Average snowfall in April: 0.59"
The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Sioux City, IA
- Average snowfall days in April: 1.4 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sioux City, IA
- Average daylight in April: 13h and 2min
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 6min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in April
Sioux City, IA
- Average sunshine days in April: 15.7 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in April
Sioux City, 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
Sioux City, 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 25).
Average visibility in April
Sioux City, 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).
Sioux City, Iowa, USA
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