April weather forecastUonuma, Japan
April weather forecast for Uonuma, Japan: April in Uonuma, Japan, is a cool spring month, with an average temperature fluctuating between 12.7°C (54.9°F) and 4.8°C (40.6°F). During 1.3 snowfall days, in April, Uonuma aggregates 55mm (2.17") of snow.
April
Weather in April
April in Uonuma, Japan, is a cool spring month, with an average temperature fluctuating between 12.7°C (54.9°F) and 4.8°C (40.6°F).Temperature
The beginning of April signals a rise in the average high-temperature, moving from a frosty 6.9°C (44.4°F) in March to a fresh 12.7°C (54.9°F). Throughout April, Uonuma encounters an average temperature drop to a wintry 4.8°C (40.6°F).Humidity
The average relative humidity in April is 77%.Rainfall
In April, the rain falls for 15.5 days. Throughout April, 82mm (3.23") of precipitation is accumulated. Throughout the year, there are 192.2 rainfall days, and 1224mm (48.19") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 1.3 snowfall days, in April, Uonuma aggregates 55mm (2.17") of snow. Throughout the year, there are 68.1 snowfall days, and 2573mm (101.3") of snow is accumulated.Daylight
In Uonuma, the average length of the day in April is 13h and 10min.On the first day of the month, sunrise is at 05:29 and sunset at 18:06. On the last day of April, sunrise is at 04:50 and sunset at 18:32 JST.
Sunshine
The average sunshine in April is 8.6h.UV index
In Uonuma, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 4 in April translates into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Uonuma, Japan
- Average high temperature in April: 12.7°C
The warmest month (with the highest average high temperature) is August (28.6°C).
The month with the lowest average high temperature is January (1.9°C).
- Average low temperature in April: 4.8°C
The month with the highest average low temperature is August (20.1°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in April
Uonuma, Japan
- Average pressure in April: 1014.8mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in April
Uonuma, Japan
- Average wind speed in April: 9.5km/h
The windiest months (with the highest average wind speed) are January and December (12.6km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).
Average humidity in April
Uonuma, Japan
- Average humidity in April: 77%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (74%).
Average rainfall in April
Uonuma, Japan
- Average rainfall in April: 82mm
The wettest month (with the highest rainfall) is January (187mm).
The driest month (with the least rainfall) is May (50mm).
Average rainfall days in April
Uonuma, Japan
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is May (12.6 days).
Average snowfall in April
Uonuma, Japan
- Average snowfall in April: 55mm
The month with the highest snowfall is January (971mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Uonuma, Japan
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (23 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
Uonuma, Japan
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in April
Uonuma, Japan
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is January (1.8 days).
Average UV index in April
Uonuma, Japan
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Uonuma, Japan
- Average cloud cover in April: 42
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in April
Uonuma, Japan
- Average visibility in April: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is January (7km).
