April weather forecastPreston, IA
April
Weather in April
April in Preston, Iowa, is a refreshing spring month, with an average temperature fluctuating between 40.6°F (4.8°C) and 56.7°F (13.7°C).Temperature
The arrival of April brings an increase in high-temperatures, moving from a frosty 44.6°F (7°C) in March to a refreshing 56.7°F (13.7°C). During the month of April, Preston's nighttime temperature lowers to an average of 40.6°F (4.8°C).Humidity
The average relative humidity in April is 75%.Rainfall
In April, in Preston, the rain falls for 16.6 days. Throughout April, 3.46" (88mm) of precipitation is accumulated. In Preston, during the entire year, the rain falls for 143.3 days and collects up to 29.76" (756mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Preston, Iowa. During 1.7 snowfall days, in April, Preston aggregates 0.87" (22mm) of snow. Throughout the year, there are 40.2 snowfall days, and 17.48" (444mm) of snow is accumulated.Daylight
The average length of the day in April in Preston is 13h and 23min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:27 pm. On the last day of April, sunrise is at 5:57 am and sunset at 7:59 pm CDT.
Sunshine
In Preston, the average sunshine in April is 7.5h.UV index
In Preston, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In April, the maximum UV index of 4 translates into these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Preston, IA
- Average high temperature in April: 56.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in April: 40.6°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 (13.3°F).
Average pressure in April
Preston, 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 (29.9"Hg).
Average wind speed in April
Preston, IA
- Average wind speed in April: 10.5mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in April
Preston, IA
- Average humidity in April: 75%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in April
Preston, IA
- Average rainfall in April: 3.46"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in April
Preston, IA
- Average rainfall days in April: 16.6 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in April
Preston, IA
- Average snowfall in April: 0.87"
The month with the highest snowfall is January (5.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Preston, IA
- Average snowfall days in April: 1.7 days
The month with the highest number of snowfall days is January (11 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
Preston, 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 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in April
Preston, IA
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in April
Preston, IA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Preston, IA
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in April
Preston, IA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
