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
April
Weather in April
Temperature
April's onset sees an average high-temperature of a fresh 11.2°C (52.2°F), exhibiting a slight fluctuation from the previous month. Throughout April, the nighttime temperature averages to an icy 3.8°C (38.8°F).Humidity
The months with the lowest humidity in Johnstown are April and May, with an average relative humidity of 86%.Rainfall
In Johnstown, in April, during 12.3 rainfall days, 14mm (0.55") of precipitation is typically accumulated. In Johnstown, during the entire year, the rain falls for 142.7 days and collects up to 221mm (8.7") of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.5 snowfall days, in April, Johnstown aggregates 1mm (0.04") of snow. Throughout the year, there are 9.7 snowfall days, and 45mm (1.77") of snow is accumulated.Daylight
The average length of the day in April is 14h and 1min.On the first day of April in Johnstown, Ireland, sunrise is at 6:58 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:54 pm IST.
Sunshine
April has the most sunshine of the year in Johnstown, with an average of 6.2h of sunshine.UV index
In April, the average daily maximum UV index in Johnstown is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 3 in April transforms into this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Johnstown in April?
What are the least humid months in Johnstown?
What is the average humidity in April in Johnstown?
How much does it rain in Johnstown in April?
What is the last month it snows in Johnstown?
How many hours of daylight does Johnstown have in April?
When is the sunrise / sunset in April in Johnstown?
What month has the most sunshine in Johnstown?
How many hours of sunshine does Johnstown have in April?
How high is the UV index in April in Johnstown?
Average temperature in April
Johnstown, Ireland
- Average high temperature in April: 11.2°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (6.6°C).
- Average low temperature in April: 3.8°C
The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in April
Johnstown, Ireland
- Average pressure in April: 1014.7mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in April
Johnstown, Ireland
- Average wind speed in April: 14.8km/h
The windiest month (with the highest average wind speed) is January (19.7km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in April
Johnstown, Ireland
- Average humidity in April: 86%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and May (86%).
Average rainfall in April
Johnstown, Ireland
- Average rainfall in April: 14mm
The wettest month (with the highest rainfall) is August (26mm).
The driest months (with the least rainfall) are January and October (13mm).
Average rainfall days in April
Johnstown, Ireland
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (9.8 days).
Average snowfall in April
Johnstown, Ireland
- Average snowfall in April: 1mm
The months with the highest snowfall are January and February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Johnstown, Ireland
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is February (2.7 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
Johnstown, Ireland
- Average daylight in April: 14h and 0min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in April: 6h and 1min
The month with the most sunshine is April (Average sunshine: 6h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in April
Johnstown, Ireland
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is December (15.8 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in April
Johnstown, Ireland
- Average UV index in April: 3
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Johnstown, Ireland
- Average cloud cover in April: 58
The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in April
Johnstown, Ireland
- Average visibility in April: 8km
The months with the highest visibility are January, February, March and December (9km).
The month with the lowest visibility is July (7km).
