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 shift from March to April sees an increase in the average high-temperature, transitioning from a wintry 36.3°F (2.4°C) to a cool 50.4°F (10.2°C). Lewis reports an average nighttime low-temperature of 32.5°F (0.3°C) in April.Humidity
In April, the average relative humidity in Lewis is 76%.Rainfall
In April, in Lewis, New York, the rain falls for 17.8 days. Throughout April, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 176.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Lewis. In Lewis, during April, snow falls for 5.5 days and regularly aggregates up to 2.32" (59mm) of snow. Throughout the year, there are 85.1 snowfall days, and 43.03" (1093mm) of snow is accumulated.Daylight
In Lewis, the average length of the day in April is 13h and 29min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:21 pm. On the last day of April, sunrise is at 5:45 am and sunset at 7:57 pm EDT.
Sunshine
The average sunshine in April is 7.6h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Experience reduced UV exposure by about half when donning a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What are April temperatures in Lewis?
What is the average humidity in April in Lewis?
How many days does it rain in April in Lewis?
How many days does it snow in April in Lewis?
How many hours of daylight does Lewis have in April?
What time are sunrise and sunset in April in Lewis?
How many hours of sunshine does Lewis have in April?
What is the UV index reading in April in Lewis?
Average temperature in April
Lewis, NY
- Average high temperature in April: 50.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in April: 32.5°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in April
Lewis, NY
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Lewis, NY
- Average wind speed in April: 6.9mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in April
Lewis, NY
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in April
Lewis, NY
- Average rainfall in April: 2.6"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in April
Lewis, NY
- Average rainfall days in April: 17.8 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in April
Lewis, NY
- Average snowfall in April: 2.32"
The month with the highest snowfall is February (12.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Lewis, NY
- Average snowfall days in April: 5.5 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Lewis, NY
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in April
Lewis, NY
- Average sunshine days in April: 10.1 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in April
Lewis, NY
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Lewis, NY
- Average cloud cover in April: 51
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in April
Lewis, NY
- Average visibility in April: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Lewis, New York, USA
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