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 April sets, the average high-temperature shows an increase, moving up from a frosty 44.2°F (6.8°C) in March to a refreshing 57.7°F (14.3°C). April's average low-temperature reading settles at an icy 41.4°F (5.2°C).Humidity
The months with the lowest humidity in Knierim are April and October, with an average relative humidity of 68%.Rainfall
In Knierim, in April, during 9.8 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Knierim, during the entire year, the rain falls for 84.6 days and collects up to 7.91" (201mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.1 snowfall days, in April, Knierim aggregates 0.16" (4mm) of snow. In Knierim, during the entire year, snow falls for 29.4 days and aggregates up to 3.62" (92mm) of snow.Daylight
The average length of the day in April is 13h and 25min.On the first day of April, sunrise is at 6:58 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:17 pm CDT.
Sunshine
The average sunshine in April is 7.8h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What are the least humid months in Knierim?
What is the average humidity in April in Knierim?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Knierim, IA
- Average high temperature in April: 57.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in April: 41.4°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in April
Knierim, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Knierim, IA
- Average wind speed in April: 11.1mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in April
Knierim, IA
- Average humidity in April: 68%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in April
Knierim, IA
- Average rainfall in April: 0.83"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in April
Knierim, IA
- Average rainfall days in April: 9.8 days
The month with the highest number of rainy days is June (12 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in April
Knierim, IA
- Average snowfall in April: 0.16"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Knierim, IA
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is February (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
Knierim, 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: 7h 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: 4h and 0min).
Average sunshine days in April
Knierim, IA
- Average sunshine days in April: 18 days
The month with the most sunshine days is December (24.3 days).
The month with the least sunshine days is June (15.5 days).
Average UV index in April
Knierim, IA
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in April
Knierim, IA
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in April
Knierim, IA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Knierim, Iowa, USA
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