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
The start of April signals an increase in the average high-temperature, moving from an icy 40.6°F (4.8°C) in March to a cool 54.3°F (12.4°C). Rotterdam records a mean low-temperature of 36.1°F (2.3°C) in April.Humidity
The least humid month is April, with an average relative humidity of 74%.Rainfall
In Rotterdam, in April, during 14.6 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Rotterdam, during the entire year, the rain falls for 137.4 days and collects up to 25.75" (654mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Rotterdam, in April, snow falls for 2 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, there are 36.5 snowfall days, and 22.56" (573mm) of snow is accumulated.Daylight
In Rotterdam, the average length of the day in April is 13h and 25min.On the first day of April, sunrise is at 6:36 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 7:55 pm EDT.
Sunshine
In Rotterdam, the average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 3 suggests this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What are April temperatures in Rotterdam?
What is the least humid month in Rotterdam?
What is the average humidity in April in Rotterdam?
How much does it rain in Rotterdam in April?
How many days does it snow in April in Rotterdam?
What is the average length of the day in April in Rotterdam?
When are sunrise and sunset in April in Rotterdam?
How long on average sun shines in April in Rotterdam?
What is the UV index intensity in April in Rotterdam?
Average temperature in April
Rotterdam, NY
- Average high temperature in April: 54.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in April: 36.1°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in April
Rotterdam, NY
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Rotterdam, NY
- Average wind speed in April: 7.9mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in April
Rotterdam, NY
- Average humidity in April: 74%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in April
Rotterdam, NY
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in April
Rotterdam, NY
- Average rainfall days in April: 14.6 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in April
Rotterdam, NY
- Average snowfall in April: 0.79"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Rotterdam, NY
- Average snowfall days in April: 2 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Rotterdam, NY
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in April
Rotterdam, NY
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is April (12.6 days).
Average UV index in April
Rotterdam, NY
- 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
Rotterdam, NY
- Average cloud cover in April: 49
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in April
Rotterdam, NY
- Average visibility in April: 6mi
The months with the highest visibility are April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May and September (5mi).
Rotterdam, New York, USA
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