April weather forecastWesterly, RI
April
Weather in April
Nearing the middle of the year, April in Westerly experiences a dramatic change in climate. Temperature hikes continue to spell the end of the cold season, with most days marked by comfortable cool conditions. The extended daylight hours combined with increased sunshine hours boost the popularity of outdoor activities. Snowfall becomes virtually non-existent, with rainfall predominant during this transitional month. A key feature of this month's weather is the reduction of snowfall to only 0.2" (5mm) from a considerably higher level in March.Temperature
As Westerly welcomes April, the average high-temperature sees a rise, transitioning from a frosty 43.5°F (6.4°C) in March to a fresh 52.5°F (11.4°C). Throughout April, a steady low-temperature average of 42.6°F (5.9°C) is noted.Humidity
In April, the average relative humidity in Westerly is 75%.Rainfall
In April, the rain falls for 14.3 days. Throughout April, 2.99" (76mm) of precipitation is accumulated. In Westerly, during the entire year, the rain falls for 154.5 days and collects up to 31.46" (799mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Westerly aggregates 0.2" (5mm) of snow. In Westerly, during the entire year, snow falls for 18.6 days and aggregates up to 6.26" (159mm) of snow.Daylight
In Westerly, the average length of the day in April is 13h and 21min.On the first day of April in Westerly, sunrise is at 6:29 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:44 pm EDT.
Sunshine
In April, the average sunshine is 8.5h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: During April, 3 as the daily maximum UV index converts into the following advice:
Undertake precautions - Guarding against sun damage is counselled. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Westerly, RI
- Average high temperature in April: 52.5°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in April: 42.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in April
Westerly, RI
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Westerly, RI
- Average wind speed in April: 11.4mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).
Average humidity in April
Westerly, RI
- Average humidity in April: 75%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in April
Westerly, RI
- Average rainfall in April: 2.99"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in April
Westerly, RI
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in April
Westerly, RI
- Average snowfall in April: 0.2"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Westerly, RI
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Westerly, RI
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in April
Westerly, RI
- Average sunshine days in April: 14.3 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (11 days).
Average UV index in April
Westerly, RI
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in April
Westerly, RI
- Average cloud cover in April: 44
The months with the most cloud cover are March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Westerly, RI
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
