The weather in April in Sumner

It's cool to moderate in April in Sumner with an average temperature of 15°C. Temperatures this month range from a low of 12°C to a high of 18°C. At night, you can expect temperatures between 4°C and 8°C.

Looking for sun and warm weather? April isn’t a good month to be in Sumner. The temperatures are too low for a warm stay this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in April for Sumner, Washington. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 31°C in 2016, Sumner reached the highest temperature in April over the past 10 years. The lowest daytime temperature in this month was 5°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of -1°C to a highest value of 11°C.

Precipitation and snowfall

In April, there is an average of 154 mm of precipitation, spread over 18 days. Of the total precipitation, about 0,6 cm falls as snow in April. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in April for Sumner

Click on any day in April to get detailed info about the usual weather on that day in Sumner. Check out the historical temperatures and precipitation over the past 10 years on this day.

April weather comparison

  Sumner New York
Average temperature 15°C 17°C
Max. temperature 18°C 22°C
Min. temperature 4°C -5°C
Total precipitation 154 mm 81 mm
Rainy days 18 days 11 days
Total snowfall 0,6 cm 0,4 cm
Snowy days 1 day 1 day

Start of April

The month of April starts in Sumner with cool temps, averaging around 14°C during the day and nights around 6°C.

Mid April

By mid-April, daytime temps rise to around 16°C, with nights around 6°C. There’s a high chance of precipitation during this time.

End of April

By the end of April, the average daytime temperature in Sumner is around 17°C, while nighttime temps are about 8°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Sumner for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in April in Sumner, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in April in Sumner

Temperature in April in Sumner over the years

Precipitation charts

These charts show the average amount of precipitation in April in Sumner, Washington. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in April in Sumner

Total precipitation in April in Sumner over the years

Daily Snowfall in April in Sumner

Snowfall in April in Sumner per year

Daily UV index in April in Sumner

This chart shows the average daily UV index in April in Sumner, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in April in Sumner

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Average weather in Sumner by month

Click on a month below to see detailed weather info for Sumner. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.