April weather forecastGrainville, OK
April
Weather in April
April in Grainville, Oklahoma, is a comfortable spring month, with an average temperature fluctuating between 48.9°F (9.4°C) and 67.8°F (19.9°C).Temperature
Grainville's April weather indicates a minor ascent in high-temperatures, adjusting from a moderate 60.1°F (15.6°C) in March to an enjoyable 67.8°F (19.9°C). Throughout the April nights, Grainville encounters a low-temperature of 48.9°F (9.4°C).Humidity
The average relative humidity in April is 69%.Rainfall
In Grainville, in April, during 12.7 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 116.1 rainfall days, and 21.57" (548mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall in Grainville.Daylight
The average length of the day in April is 13h and 10min.On the first day of April, sunrise is at 7:13 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:17 pm CDT.
Sunshine
The average sunshine in April is 8.6h.UV index
In Grainville, Oklahoma, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, an average UV index of 5 transforms into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Grainville, OK
- Average high temperature in April: 67.8°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in April: 48.9°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in April
Grainville, OK
- Average pressure in April: 29.9"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in April
Grainville, OK
- Average wind speed in April: 11.4mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in April
Grainville, OK
- Average humidity in April: 69%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is July (61%).
Average rainfall in April
Grainville, OK
- Average rainfall in April: 2.2"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in April
Grainville, OK
- Average rainfall days in April: 12.7 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in April
Grainville, OK
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in April
Grainville, OK
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (2.4 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
Grainville, OK
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).
Average sunshine days in April
Grainville, OK
- Average sunshine days in April: 16.3 days
The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in April
Grainville, OK
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in April
Grainville, OK
- Average cloud cover in April: 36
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in April
Grainville, OK
- 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).
