April weather forecastGreencastle, IN
April
Weather in April
Spring is in full bloom in April in Greencastle. The scenery turns picturesque with bright blossoms standing out against green meadows. While rainfall peaks at 1.42" (36mm), the increase in temperature creates a balanced combination for the city's ecosystem. Coupled with warmer days, there is a termination of snowfall, signifying the total nullification of winter. Lively breezes turning more infrequent mark the shift toward the succeeding warmer months.Temperature
Greencastle's weather shows a temperature rise with the arrival of April, moving from a fresh 50.4°F (10.2°C) in March to a comfortable 61.9°F (16.6°C). April nights experience a consistent temperature drop to a chilly 45.3°F (7.4°C).Humidity
The average relative humidity in April is 78%.Rainfall
In Greencastle, during April, the rain falls for 13.1 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Greencastle, during the entire year, the rain falls for 118.9 days and collects up to 12.13" (308mm) of precipitation.Snowfall
Months with snowfall in Greencastle are January through April, November and December. April is the last month it regularly snows. During 0.7 snowfall days, in April, Greencastle aggregates 0.04" (1mm) of snow. In Greencastle, during the entire year, snow falls for 22.2 days and aggregates up to 3.82" (97mm) of snow.Daylight
In Greencastle, the average length of the day in April is 13h and 17min.On the first day of the month, sunrise is at 7:30 am and sunset at 8:11 pm. On the last day of April, in Greencastle, sunrise is at 6:48 am and sunset at 8:40 pm EDT.
Sunshine
The average sunshine in April is 7.1h.UV index
In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 4 in April leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Greencastle, IN
- Average high temperature in April: 61.9°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 (33.6°F).
- Average low temperature in April: 45.3°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in April
Greencastle, IN
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Greencastle, IN
- Average wind speed in April: 9.8mph
The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in April
Greencastle, IN
- Average humidity in April: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in April
Greencastle, IN
- Average rainfall in April: 1.42"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in April
Greencastle, IN
- Average rainfall days in April: 13.1 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in April
Greencastle, IN
- Average snowfall in April: 0.04"
The month with the highest snowfall is December (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Greencastle, IN
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Greencastle, IN
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 7h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in April
Greencastle, IN
- Average sunshine days in April: 15.4 days
The month with the most sunshine days is December (21 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in April
Greencastle, IN
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in April
Greencastle, IN
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Greencastle, IN
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
