April weather forecastDefiance, IA
April
Weather in April
April in Defiance, Iowa, is a mild spring month, with an average temperature fluctuating between 41.7°F (5.4°C) and 58.5°F (14.7°C).Temperature
As March transitions into April, a change in temperatures is observed, with average highs moving from a frosty 46.4°F (8°C) to a moderate 58.5°F (14.7°C). In the month of April, Defiance experiences an average low-temperature of 41.7°F (5.4°C).Humidity
April and October, with an average relative humidity of 68%, are the least humid months.Rainfall
In April, the rain falls for 13.7 days. Throughout April, 2.36" (60mm) of precipitation is accumulated. In Defiance, during the entire year, the rain falls for 123 days and collects up to 24.72" (628mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In April, it is snowing for 1.4 days. Throughout April, 0.94" (24mm) of snow is accumulated. Throughout the year, there are 36.8 snowfall days, and 14.53" (369mm) of snow is accumulated.Daylight
In Defiance, the average length of the day in April is 13h and 23min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:47 pm. On the last day of April, sunrise is at 6:17 am and sunset at 8:19 pm CDT.
Sunshine
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 medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 4 during April translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Defiance, IA
- Average high temperature in April: 58.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in April
Defiance, 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 (29.87"Hg).
Average wind speed in April
Defiance, 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 (7.4mph).
Average humidity in April
Defiance, IA
- Average humidity in April: 68%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in April
Defiance, IA
- Average rainfall in April: 2.36"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in April
Defiance, IA
- Average rainfall days in April: 13.7 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in April
Defiance, IA
- Average snowfall in April: 0.94"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Defiance, IA
- Average snowfall days in April: 1.4 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Defiance, IA
- Average daylight in April: 13h and 24min
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 12min).
- Average sunshine in April: 7h and 54min
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
Defiance, IA
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in April
Defiance, 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 February (UV index 1).
Average cloud cover in April
Defiance, IA
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in April
Defiance, IA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
