Climate and monthly weather forecast
Sumner, NE

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Weather in January

January, the same as December, is a wintry winter month in Sumner, Nebraska, with an average temperature varying between 35.8°F (2.1°C) and 21°F (-6.1°C). During the coldest month, January, temperatures average a high of 35.8°F (2.1°C) and a low of 21°F (-6.1°C). Weather in January »

Weather in February

February, the last month of the winter in Sumner, is also a wintry month, with an average temperature varying between 22.5°F (-5.3°C) and 38.3°F (3.5°C). Sumner measures an average high-temperature of a still wintry 38.3°F (3.5°C) in February, nearly consistent with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Sumner, Nebraska, with an average temperature ranging between min 33.8°F (1°C) and max 52.9°F (11.6°C). As Sumner welcomes March, the average high-temperature witnesses a distinct rise, moving from a wintry 38.3°F (3.5°C) in February to a cool 52.9°F (11.6°C). Weather in March »

Weather in April

April in Sumner, Nebraska, is a mild spring month, with an average temperature fluctuating between 60.4°F (15.8°C) and 41.4°F (5.2°C). April introduces a minor temperature shift, with average high-temperatures adjusting from March's cool 52.9°F (11.6°C) to a refreshing 60.4°F (15.8°C). Weather in April »

Weather in May

May, the last month of the spring in Sumner, is a pleasant month, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 50.5°F (10.3°C). May indicates a change in the average high-temperature, moving up from a moderate 60.4°F (15.8°C) in April to a pleasant 70°F (21.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Sumner, Nebraska, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 61.9°F (16.6°C). Sumner's weather in June shows a rise in the average high-temperature, moving up from May's agreeable 70°F (21.1°C) to a warm 82.4°F (28°C). Weather in June »

Weather in July

July in Sumner, Nebraska, is a hot summer month, with an average temperature ranging between max 88.3°F (31.3°C) and min 65.5°F (18.6°C). July is the warmest month, with an average high-temperature of 88.3°F (31.3°C) and an average low-temperature of 65.5°F (18.6°C). Throughout July, the heat index is calculated to be a fiery hot 96.8°F (36°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Sumner, Nebraska, with an average temperature fluctuating between 62.6°F (17°C) and 86.2°F (30.1°C). August's beginning signals an average high-temperature of a still tropical 86.2°F (30.1°C), barely different from July's 88.3°F (31.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Sumner, is still a warm month, with an average temperature ranging between min 56.1°F (13.4°C) and max 78.6°F (25.9°C). The onset of September is marked by a minor decrease in temperature, transitioning from a tropical 86.2°F (30.1°C) in August to a warm 78.6°F (25.9°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Sumner, Nebraska, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 62.6°F (17°C). As Sumner transitions into October, a noticeable drop in the average high-temperature is observed, falling from a moderately hot 78.6°F (25.9°C) in September to an enjoyable 62.6°F (17°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Sumner, Nebraska, with an average temperature fluctuating between 50.5°F (10.3°C) and 32.7°F (0.4°C). The average high-temperature drops in November, from October's refreshing 62.6°F (17°C) to a cool 50.5°F (10.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Sumner, Nebraska, with an average temperature fluctuating between 22.3°F (-5.4°C) and 36.9°F (2.7°C). The start of December signals a decrease in the average high-temperature, transitioning from a cool 50.5°F (10.3°C) in November to a cold 36.9°F (2.7°C). Weather in December »
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January, characterized by an average high temperature of 35.8°F (2.1°C) and a low temperature of 21°F (-6.1°C), is generally the coldest month.

What is the most humid month?

With an average relative humidity of 75%, January is the most humid month.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 4.8 days and typically collects 0.51" (13mm) of precipitation.

How many days does it rain?

In Sumner, during the entire year, the rain falls for 117 days and collects up to 18.35" (466mm) of precipitation.

When does it snow?

January through May, October through December are months with snowfall.

How many days does it snow?

Throughout the year, there are 31.7 snowfall days, and 14.69" (373mm) of snow is accumulated.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 5.9h of sunshine.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 7.4 days and accumulates 3.62" (92mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 16.8 days and accumulates 3.03" (77mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

With an average of 15h and 6min of daylight, June has the longest days of the year in Sumner.

When is the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What part of the year is the hottest?

The average temperatures reach their apex in July, averaging 88.3°F (31.3°C) at the high end and 65.5°F (18.6°C) at the low end.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 11.1h of sunshine.

What is the least humid month?

The least humid month is October, with an average relative humidity of 58%.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Sumner.

Average temperature
Sumner, NE

Average temperature - Sumner, NE

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (35.8°F).

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure
Sumner, NE

Average pressure - Sumner, NE

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed
Sumner, NE

Average wind speed - Sumner, NE

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is July (8.8mph).

Average humidity
Sumner, NE

Average humidity - Sumner, NE

The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is October (58%).

Average rainfall
Sumner, NE

Average rainfall - Sumner, NE

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days
Sumner, NE

Average rainfall days - Sumner, NE

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (3.9 days).

Average snowfall
Sumner, NE

Average snowfall - Sumner, NE

The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Sumner, NE

Average snowfall days - Sumner, NE

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Sumner, NE

Average daylight / Average sunshine - Sumner, NE

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 18min).

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days
Sumner, NE

Average sunshine days - Sumner, NE

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.2 days).

Average UV index
Sumner, NE

Average UV index - Sumner, NE

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, November and December (UV index 2).

Average visibility
Sumner, NE

Average visibility - Sumner, NE

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).

Sumner, Nebraska, USA

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