April weather forecastGriffin, IN
April
Weather in April
April in Griffin, Indiana, is a comfortable spring month, with an average temperature fluctuating between 48.7°F (9.3°C) and 65.3°F (18.5°C).Temperature
April's arrival coincides with a rise in the average high-temperature, moving from March's fresh 54.1°F (12.3°C) to a refreshing 65.3°F (18.5°C). An average low-temperature of 48.7°F (9.3°C) is recorded during the nights in April.Humidity
In Griffin, the average relative humidity in April is 77%.Rainfall
The month with the most rainfall is April, when the rain falls for 16.7 days and typically aggregates up to 5.2" (132mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.4 snowfall days, in April, Griffin aggregates 0.2" (5mm) of snow. In Griffin, during the entire year, snow falls for 20.5 days and aggregates up to 6.06" (154mm) of snow.Daylight
In Griffin, the average length of the day in April is 13h and 13min.On the first day of April, sunrise is at 6:35 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:42 pm CDT.
Sunshine
In Griffin, the average sunshine in April is 8.5h.UV index
In Griffin, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 5 during April translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Enhance your sun protection with tightly woven, yet airy clothing. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Griffin, IN
- Average high temperature in April: 65.3°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in April
Griffin, IN
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Griffin, IN
- Average wind speed in April: 9.9mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in April
Griffin, IN
- Average humidity in April: 77%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in April
Griffin, IN
- Average rainfall in April: 5.2"
The wettest month (with the highest rainfall) is April (5.2").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in April
Griffin, IN
- Average rainfall days in April: 16.7 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in April
Griffin, IN
- Average snowfall in April: 0.2"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Griffin, IN
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is January (6.6 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
Griffin, IN
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in April
Griffin, IN
- Average sunshine days in April: 11.4 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in April
Griffin, IN
- Average UV index in April: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Griffin, IN
- Average cloud cover in April: 42
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in April
Griffin, IN
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





