April weather forecastMonticello, IA
April
Weather in April
April is a refreshing spring month in Monticello, Iowa, with an average temperature fluctuating between 39.9°F (4.4°C) and 56.1°F (13.4°C).Temperature
April's arrival sees a rise in the average high-temperature, jumping from March's chilly 44.2°F (6.8°C) to a refreshing 56.1°F (13.4°C). Monticello observes an average nighttime low-temperature of 39.9°F (4.4°C) during the month of April.Humidity
In April, the average relative humidity is 76%.Rainfall
In Monticello, in April, during 16 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Monticello, during the entire year, the rain falls for 142.5 days and collects up to 28.27" (718mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.6 snowfall days, in April, Monticello aggregates 0.63" (16mm) of snow. Throughout the year, in Monticello, there are 43.2 snowfall days, and 17.17" (436mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 24min.On the first day of April, sunrise is at 6:45 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:03 pm CDT.
Sunshine
The average sunshine in April in Monticello is 7.5h.UV index
The average daily maximum UV index in April in Monticello, Iowa, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 4 in April suggests the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Monticello, IA
- Average high temperature in April: 56.1°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in April: 39.9°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in April
Monticello, IA
- Average pressure in April: 29.93"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
Monticello, IA
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in April
Monticello, IA
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in April
Monticello, IA
- Average rainfall in April: 3.15"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in April
Monticello, IA
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in April
Monticello, IA
- Average snowfall in April: 0.63"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Monticello, IA
- Average snowfall days in April: 1.6 days
The month with the highest number of snowfall days is January (12.1 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
Monticello, 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 months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Monticello, IA
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in April
Monticello, IA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Monticello, IA
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Monticello, 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).
