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 46.6°F (8.1°C) in March to a refreshing 58.6°F (14.8°C). In River Junction, the April nights cool down to an average low of 42.3°F (5.7°C).Humidity
In River Junction, the average relative humidity in April is 74%.Rainfall
In River Junction, in April, it is raining for 15.3 days, with typically 3.19" (81mm) of accumulated precipitation. In River Junction, during the entire year, the rain falls for 140.4 days and collects up to 29.57" (751mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.3 snowfall days, in April, River Junction aggregates 0.67" (17mm) of snow. In River Junction, during the entire year, snow falls for 37.7 days and aggregates up to 16.42" (417mm) of snow.Daylight
In River Junction, the average length of the day in April is 13h and 22min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:31 pm. On the last day of April, sunrise is at 6:03 am and sunset at 8:03 pm CDT.
Sunshine
In River Junction, the average sunshine in April is 7.8h.UV index
In River Junction, 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 radiation for the ordinary person.Note: The maximum UV index of 4 during April leads to these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What are the temperatures in River Junction in April?
What is the average humidity in April in River Junction?
How many days does it rain in April in River Junction?
What is the last month it snows in River Junction?
What is the average length of the day in April in River Junction?
What time are sunrise and sunset in April in River Junction?
How long on average sun shines in April in River Junction?
What is the UV index reading in April in River Junction?
Average temperature in April
River Junction, IA
- Average high temperature in April: 58.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in April: 42.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in April
River Junction, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
River Junction, IA
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in April
River Junction, IA
- Average humidity in April: 74%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
River Junction, IA
- Average rainfall in April: 3.19"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").
Average rainfall days in April
River Junction, IA
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).
Average snowfall in April
River Junction, IA
- Average snowfall in April: 0.67"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
River Junction, IA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (10.9 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
River Junction, 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: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in April
River Junction, IA
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).
Average UV index in April
River Junction, 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 January (UV index 1).
Average cloud cover in April
River Junction, IA
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
River Junction, 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).
River Junction, Iowa, USA
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