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
In April, the average high-temperature in Johnstown, Pennsylvania, increases from a chilly 44.2°F (6.8°C) in March to a moderate 57°F (13.9°C). Throughout the nights in April, Johnstown experiences an average low-temperature of 38.5°F (3.6°C).Humidity
In April, the average relative humidity in Johnstown, Pennsylvania, is 79%.Rainfall
In April, in Johnstown, the rain falls for 15.3 days. Throughout April, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 152.7 rainfall days, and 21.1" (536mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Johnstown, in April, snow falls for 2.8 days, with typically accumulated 0.83" (21mm) of snow. In Johnstown, during the entire year, snow falls for 47.7 days and aggregates up to 18.23" (463mm) of snow.Daylight
In April, the average length of the day is 13h and 19min.On the first day of April in Johnstown, sunrise is at 6:58 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:10 pm EDT.
Sunshine
In April, the average sunshine is 7.5h.UV index
In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 3 in April translates into these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the temperatures in Johnstown in April?
What is the average humidity in April in Johnstown?
How much does it rain in Johnstown in April?
How many days does it snow in April in Johnstown?
How many hours of daylight does Johnstown have in April?
When are sunrise and sunset in April in Johnstown?
How long on average sun shines in April in Johnstown?
How high is the UV index in April in Johnstown?
Average temperature in April
Johnstown, PA
- Average high temperature in April: 57°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in April: 38.5°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in April
Johnstown, PA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Johnstown, PA
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in April
Johnstown, PA
- Average humidity in April: 79%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is July (78%).
Average rainfall in April
Johnstown, PA
- Average rainfall in April: 1.93"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in April
Johnstown, PA
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in April
Johnstown, PA
- Average snowfall in April: 0.83"
The month with the highest snowfall is March (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Johnstown, PA
- Average snowfall days in April: 2.8 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Johnstown, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in April
Johnstown, PA
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (9 days).
Average UV index in April
Johnstown, PA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Johnstown, PA
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in April
Johnstown, PA
- Average visibility in April: 6mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Johnstown, Pennsylvania, USA
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