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
April shows a rise in the average high-temperature, moving from March's frosty 44.2°F (6.8°C) to a moderate 55.6°F (13.1°C). Williston observes an average nighttime temperature of 40.6°F (4.8°C) during April.Humidity
In April, the average relative humidity is 76%.Rainfall
In Williston, in April, it is raining for 14.5 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 136.8 rainfall days, and 16.14" (410mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.8 snowfall days, in April, Williston aggregates 0.55" (14mm) of snow. Throughout the year, there are 39.7 snowfall days, and 6.97" (177mm) of snow is accumulated.Daylight
In Williston, the average length of the day in April is 13h and 22min.On the first day of the month, sunrise is at 7:14 am and sunset at 7:59 pm. On the last day of April, sunrise is at 6:30 am and sunset at 8:30 pm EDT.
Sunshine
In April, the average sunshine is 7.2h.UV index
The average daily maximum UV index in April in Williston is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In April, a regular UV index of 3 translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Williston in April?
What is the average humidity in April in Williston?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Williston have in April?
How high is the UV index in April?
Average temperature in April
Williston, OH
- Average high temperature in April: 55.6°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in April: 40.6°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in April
Williston, OH
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Williston, OH
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in April
Williston, OH
- Average humidity in April: 76%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in April
Williston, OH
- Average rainfall in April: 1.69"
The wettest months (with the highest rainfall) are June and July (1.97").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in April
Williston, OH
- Average rainfall days in April: 14.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in April
Williston, OH
- Average snowfall in April: 0.55"
The month with the highest snowfall is February (1.97").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Williston, OH
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Williston, OH
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in April
Williston, OH
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in April
Williston, OH
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Williston, OH
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in April
Williston, OH
- 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).
Williston, Ohio, USA
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