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
As Stillwater welcomes April, the average high-temperature sees a modest rise, transitioning from a comfortable 61.7°F (16.5°C) in March to a pleasant 69.4°F (20.8°C). April is noted for a mean low-temperature of 50.5°F (10.3°C).Humidity
The average relative humidity in April is 69%.Rainfall
In Stillwater, during April, the rain falls for 13.6 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 121.4 rainfall days, and 25.28" (642mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in April is 13h and 8min.On the first day of April, sunrise is at 7:13 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:15 pm CDT.
Sunshine
In Stillwater, the average sunshine in April is 8.5h.UV index
In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 5 in April translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Stillwater in April?
What is the average humidity in April?
How much does it rain in April?
When it does not snow?
Does it snow in April?
How many hours of daylight does Stillwater have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Stillwater have in April?
What is the UV index intensity in April?
Average temperature in April
Stillwater, OK
- Average high temperature in April: 69.4°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in April: 50.5°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in April
Stillwater, 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
Stillwater, OK
- Average wind speed in April: 11.5mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity in April
Stillwater, OK
- Average humidity in April: 69%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (62%).
Average rainfall in April
Stillwater, OK
- Average rainfall in April: 2.8"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in April
Stillwater, OK
- Average rainfall days in April: 13.6 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in April
Stillwater, OK
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Stillwater, OK
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Stillwater, 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 48min).
- Average sunshine in April: 8h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in April
Stillwater, OK
- Average sunshine days in April: 14.4 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in April
Stillwater, OK
- Average UV index in April: 5
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
Stillwater, 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
Stillwater, 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).
Stillwater, Oklahoma, USA
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