April weather forecastEmmaus, PA
April
Weather in April
April in Emmaus, Pennsylvania, is a moderate spring month, with an average temperature fluctuating between 40.5°F (4.7°C) and 58.3°F (14.6°C).Temperature
April's onset is marked by a temperature increase, moving from a chilly 45.9°F (7.7°C) in March to a mild 58.3°F (14.6°C). The average low-temperature during April nights is a cold 40.5°F (4.7°C).Humidity
April and July, with an average relative humidity of 76%, are the least humid months.Rainfall
In Emmaus, in April, it is raining for 14.9 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 145.1 rainfall days, and 27.24" (692mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Emmaus, in April, during 0.3 snowfall days, 0.2" (5mm) of snow is typically accumulated. In Emmaus, during the entire year, snow falls for 20.4 days and aggregates up to 13.82" (351mm) of snow.Daylight
The average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 6:44 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:57 pm EDT.
Sunshine
In Emmaus, the average sunshine in April is 7.9h.UV index
In Emmaus, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 4 in April transforms into this advice:
Exercise prevention - Warding off sunburn is urged. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Emmaus, PA
- Average high temperature in April: 58.3°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in April: 40.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in April
Emmaus, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Emmaus, PA
- Average wind speed in April: 7.9mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in April
Emmaus, PA
- Average humidity in April: 76%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in April
Emmaus, PA
- Average rainfall in April: 2.44"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in April
Emmaus, PA
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in April
Emmaus, PA
- Average snowfall in April: 0.2"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Emmaus, PA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Emmaus, 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in April
Emmaus, PA
- Average sunshine days in April: 13.4 days
The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in April
Emmaus, PA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Emmaus, PA
- Average cloud cover in April: 47
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in April
Emmaus, PA
- Average visibility in April: 6mi
The months with the highest visibility are April, July and November (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September, October and December (5mi).
