April weather forecastAltoona, PA
April
Weather in April
Offering a conspicuous respite from the colder months, April introduces spring sunshine with noticeably longer daylight hours and more sunshine hours. With snowfall almost driven away, rainfall dominates the weather scene in Altoona. The city also witnesses an increase in UV index, necessitating the use of sun-protective gear. Relative humidity takes a slight dip, lowering the dampness in the atmosphere. As warmer temperatures set in, the city experiences highs soaring to a comfortable 57.2°F (14°C) and lows standing at a balmy 38.7°F (3.7°C).Temperature
With the onset of April, Altoona's weather sees a temperature rise, transitioning from a frosty 44.4°F (6.9°C) in March to a refreshing 57.2°F (14°C). April nights experience a consistent temperature drop to a wintry 38.7°F (3.7°C).Humidity
The months with the lowest humidity are April and July, with an average relative humidity of 77%.Rainfall
In April, the rain falls for 16.9 days. Throughout April, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 165 rainfall days, and 25.31" (643mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Altoona, in April, snow falls for 2.5 days, with typically accumulated 0.75" (19mm) of snow. In Altoona, during the entire year, snow falls for 58.4 days and aggregates up to 20.59" (523mm) of snow.Daylight
In Altoona, the average length of the day in April is 13h and 19min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:38 pm. On the last day of April, sunrise is at 6:12 am and sunset at 8:08 pm EDT.
Sunshine
The average sunshine in April is 7.6h.UV index
In Altoona, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 3 in April leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Altoona, PA
- Average high temperature in April: 57.2°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in April: 38.7°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in April
Altoona, 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
Altoona, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in April
Altoona, PA
- Average humidity in April: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in April
Altoona, PA
- Average rainfall in April: 2.64"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is November (1.57").
Average rainfall days in April
Altoona, PA
- Average rainfall days in April: 16.9 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in April
Altoona, PA
- Average snowfall in April: 0.75"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Altoona, PA
- Average snowfall days in April: 2.5 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Altoona, PA
- Average daylight in April: 13h and 18min
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 18min).
- Average sunshine in April: 7h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Altoona, PA
- Average sunshine days in April: 10.3 days
The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in April
Altoona, 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
Altoona, PA
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in April
Altoona, 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).
