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 transition from March to April brings a subtle temperature rise, with average high-temperatures increasing from an enjoyable 62.6°F (17°C) to a pleasant 70.3°F (21.3°C). Saint Louis's nights in April experience an average temperature drop to a fresh 52°F (11.1°C).Humidity
In April, the average relative humidity in Saint Louis is 73%.Rainfall
In Saint Louis, during April, the rain falls for 12.1 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, in Saint Louis, there are 111.2 rainfall days, and 17.13" (435mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows in Saint Louis. During 0.1 snowfall days, in April, Saint Louis aggregates 0.08" (2mm) of snow. Throughout the year, in Saint Louis, Oklahoma, there are 4.3 snowfall days, and 1.5" (38mm) of snow is accumulated.Daylight
In Saint Louis, the average length of the day in April is 13h and 6min.On the first day of the month, sunrise is at 7:12 am and sunset at 7:49 pm. On the last day of April, sunrise is at 6:36 am and sunset at 8:12 pm CDT.
Sunshine
In April, the average sunshine in Saint Louis is 8.3h.UV index
In Saint Louis, 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 average individuals.Note: The UV index of 5 during April translates into the following guidance:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the temperature in April in Saint Louis?
What is the average humidity in April in Saint Louis?
How many days does it rain in April in Saint Louis?
What is the last month it snows in Saint Louis?
How many hours of daylight does Saint Louis have in April?
When is the sunrise / sunset in April in Saint Louis?
How many hours of sunshine does Saint Louis have in April?
What is the UV index reading in April in Saint Louis?
Average temperature in April
Saint Louis, OK
- Average high temperature in April: 70.3°F
The warmest month (with the highest average high temperature) is August (92.5°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in April: 52°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in April
Saint Louis, OK
- Average pressure in April: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Saint Louis, OK
- Average wind speed in April: 11.1mph
The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in April
Saint Louis, OK
- Average humidity in April: 73%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (63%).
Average rainfall in April
Saint Louis, OK
- Average rainfall in April: 1.85"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in April
Saint Louis, OK
- Average rainfall days in April: 12.1 days
The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in April
Saint Louis, OK
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Saint Louis, OK
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (1.8 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
Saint Louis, OK
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in April
Saint Louis, OK
- Average sunshine days in April: 15.9 days
The month with the most sunshine days is January (24 days).
The months with the least sunshine days are April, May and September (15.9 days).
Average UV index in April
Saint Louis, 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
Saint Louis, OK
- Average cloud cover in April: 37
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in April
Saint Louis, 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).
Saint Louis, Oklahoma, USA
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