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
An increase in the average high-temperature marks April, moving from March's cool 55°F (12.8°C) to a refreshing 66°F (18.9°C). In April, Sullivan reports a consistent average low-temperature of 47.1°F (8.4°C) during the nights.Humidity
In April, the average relative humidity in Sullivan is 75%.Rainfall
April is the month with the most rainfall. Rain falls for 14.8 days and accumulates 3.86" (98mm) of precipitation.Snowfall
April through October are months without snowfall in Sullivan.Daylight
The average length of the day in April in Sullivan is 13h and 13min.On the first day of April, sunrise is at 6:48 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:55 pm CDT.
Sunshine
In April, the average sunshine in Sullivan is 8.6h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 in April translates into these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Sullivan?
What is the average humidity in April in Sullivan?
What is the wettest month in Sullivan?
How many days does it rain in April in Sullivan?
When it does not snow in Sullivan?
Does it snow in Sullivan in April?
How many hours of daylight does Sullivan have in April?
When is the sunrise / sunset in April in Sullivan?
How long on average sun shines in April in Sullivan?
What is the UV index reading in April in Sullivan?
Average temperature in April
Sullivan, MO
- Average high temperature in April: 66°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in April: 47.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in April
Sullivan, MO
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Sullivan, MO
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in April
Sullivan, MO
- Average humidity in April: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Sullivan, MO
- Average rainfall in April: 3.86"
The wettest month (with the highest rainfall) is April (3.86").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in April
Sullivan, MO
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (7 days).
Average snowfall in April
Sullivan, MO
- Average snowfall in April: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Sullivan, MO
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sullivan, MO
- Average daylight in April: 13h and 1min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in April
Sullivan, MO
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is January (19.1 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in April
Sullivan, MO
- Average UV index in April: 4
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
Sullivan, MO
- Average cloud cover in April: 41
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in April
Sullivan, MO
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Sullivan, Missouri, USA
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