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
April sees a rise in the average high-temperature, climbing from a chilly 47.5°F (8.6°C) in March to a mild 59.7°F (15.4°C). The average nighttime temperature lowers to a wintry 42.4°F (5.8°C) throughout April.Humidity
The average relative humidity in April in Norwalk is 73%.Rainfall
In April, in Norwalk, Iowa, the rain falls for 13.4 days. Throughout April, 1.46" (37mm) of precipitation is accumulated. In Norwalk, Iowa, during the entire year, the rain falls for 114.4 days and collects up to 16.38" (416mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In April, it is snowing for 1.1 days. Throughout April, 0.35" (9mm) of snow is accumulated. In Norwalk, during the entire year, snow falls for 30.9 days and aggregates up to 7.36" (187mm) of snow.Daylight
In April, the average length of the day is 13h and 22min.On the first day of April in Norwalk, sunrise is at 6:56 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in April in Norwalk is 8h.UV index
In Norwalk, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during April leads to these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What are April temperatures in Norwalk?
What is the average humidity in April in Norwalk?
How much does it rain in Norwalk in April?
How many days does it snow in April in Norwalk?
What is the average length of the day in April in Norwalk?
When is the sunrise / sunset in April in Norwalk?
How many hours of sunshine does Norwalk have in April?
What is the UV index reading in April in Norwalk?
Average temperature in April
Norwalk, IA
- Average high temperature in April: 59.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in April
Norwalk, 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 (29.88"Hg).
Average wind speed in April
Norwalk, IA
- Average wind speed in April: 10.3mph
The windiest months (with the highest average wind speed) are January, February, March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in April
Norwalk, IA
- Average humidity in April: 73%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Norwalk, IA
- Average rainfall in April: 1.46"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in April
Norwalk, IA
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3 days).
Average snowfall in April
Norwalk, IA
- Average snowfall in April: 0.35"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Norwalk, IA
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Norwalk, 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 12min).
- Average sunshine in April: 8h and 0min
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 18min).
Average sunshine days in April
Norwalk, IA
- Average sunshine days in April: 15.1 days
The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in April
Norwalk, IA
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Norwalk, IA
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in April
Norwalk, 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).
Norwalk, Iowa, USA
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