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
The average high-temperature mildly increases in April, edging from a comfortable 63.3°F (17.4°C) in March to an agreeable 70.5°F (21.4°C). In the face of high daytime temperatures, Optima witnesses a consistent average nighttime low of 46.8°F (8.2°C) during April.Humidity
In Optima, the average relative humidity in April is 45%.Rainfall
In April, the rain falls for 8.5 days. Throughout April, 1.3" (33mm) of precipitation is accumulated. In Optima, during the entire year, the rain falls for 88.2 days and collects up to 13.39" (340mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.7 snowfall days, in April, Optima aggregates 0.24" (6mm) of snow. In Optima, during the entire year, snow falls for 14.6 days and aggregates up to 6.42" (163mm) of snow.Daylight
In April, the average length of the day is 13h and 10min.On the first day of the month, sunrise is at 7:29 am and sunset at 8:08 pm. On the last day of April, sunrise is at 6:51 am and sunset at 8:33 pm CDT.
Sunshine
In April, the average sunshine is 9.1h.UV index
In Optima, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In April, a daily maximum UV index of 4 leads to the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. To guard against the harmful effects of the Sun, minimize exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April?
How many days 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?
What is the UV index intensity in April?
Average temperature in April
Optima, OK
- Average high temperature in April: 70.5°F
The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (47.7°F).
- Average low temperature in April: 46.8°F
The month with the highest average low temperature is July (72.1°F).
The coldest months (with the lowest average low temperature) are January and December (28.9°F).
Average pressure in April
Optima, OK
- Average pressure in April: 29.85"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in April
Optima, OK
- Average wind speed in April: 13.3mph
The windiest month (with the highest average wind speed) is June (13.4mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).
Average humidity in April
Optima, OK
- Average humidity in April: 45%
The month with the highest relative humidity is December (56%).
The month with the lowest relative humidity is June (44%).
Average rainfall in April
Optima, OK
- Average rainfall in April: 1.3"
The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is November (0.35").
Average rainfall days in April
Optima, OK
- Average rainfall days in April: 8.5 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (2.5 days).
Average snowfall in April
Optima, OK
- Average snowfall in April: 0.24"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Optima, OK
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (4.8 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
Optima, OK
- Average daylight in April: 13h and 1min
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: 9h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in April
Optima, OK
- Average sunshine days in April: 19.2 days
The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in April
Optima, OK
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in April
Optima, OK
- Average cloud cover in April: 25
The month with the most cloud cover is February (Cloud cover 26).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in April
Optima, 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).
Optima, Oklahoma, USA
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