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
With the onset of April, Princeton sees a temperature rise, with the average high-temperature moving from March's chilly 45.9°F (7.7°C) to a moderate 57.7°F (14.3°C). Princeton records an average low of 40.8°F (4.9°C) throughout the nights in April.Humidity
In April, the average relative humidity is 75%.Rainfall
In Princeton, in April, during 16.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Princeton, during the entire year, the rain falls for 146.6 days and collects up to 28.86" (733mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Princeton. April is the last month it regularly snows. During 1.3 snowfall days, in April, Princeton aggregates 0.55" (14mm) of snow. Throughout the year, there are 40.4 snowfall days, and 14.72" (374mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 22min.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 5:58 am and sunset at 7:58 pm CDT.
Sunshine
The average sunshine in April in Princeton is 7.7h.UV index
In Princeton, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In April, an average UV index of 3 transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April in Princeton?
What is the UV index intensity in April?
Average temperature in April
Princeton, IA
- Average high temperature in April: 57.7°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in April: 40.8°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in April
Princeton, 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 (29.91"Hg).
Average wind speed in April
Princeton, IA
- Average wind speed in April: 10.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in April
Princeton, IA
- Average humidity in April: 75%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Princeton, IA
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and February (1.34").
Average rainfall days in April
Princeton, IA
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in April
Princeton, IA
- Average snowfall in April: 0.55"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Princeton, IA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (12.3 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
Princeton, IA
- Average daylight in April: 13h and 2min
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 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
Princeton, IA
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in April
Princeton, IA
- Average UV index in April: 3
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
Princeton, IA
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in April
Princeton, 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).
Princeton, Iowa, USA
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