March weather forecast
Sumner, IA

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Weather in March

March, the first month of the spring in Sumner, is a wintry month, with an average temperature fluctuating between 28°F (-2.2°C) and 42.4°F (5.8°C).

Temperature

Sumner's transition into March is marked by a clear temperature shift, advancing from a subzero cold 27°F (-2.8°C) in February to a cold 42.4°F (5.8°C). Sumner experiences a consistent average temperature of 28°F (-2.2°C) throughout the nights in March.

Humidity

In March, the average relative humidity is 79%.

Rainfall

In Sumner, during March, the rain falls for 10.9 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Sumner, during the entire year, the rain falls for 146.8 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

Months with snowfall in Sumner, Iowa, are January through May, October through December. In Sumner, during March, snow falls for 7.5 days and regularly aggregates up to 2.72" (69mm) of snow. In Sumner, Iowa, during the entire year, snow falls for 55.9 days and aggregates up to 23.46" (596mm) of snow.

Daylight

In Sumner, the average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 6:42 am and sunset at 5:58 pm CST. On the last day of March, sunrise is at 6:50 am and sunset at 7:33 pm CDT.
Note: 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 lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.

Sunshine

In Sumner, the average sunshine in March is 6h.

UV index

In March, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 3 in March translates into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Stay sun-safe with clothing that is both closely woven and worn loosely. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is it in Sumner in March?

The high-temperature, in March, in Sumner, is 42.4°F (5.8°C), while the low-temperature averages to 28°F (-2.2°C).

What is the average humidity in March in Sumner?

The average relative humidity in March in Sumner is 79%.

How many days does it rain in March in Sumner?

In March, in Sumner, the rain falls for 10.9 days. Throughout March, 1.85" (47mm) of precipitation is accumulated.

How much does it snow in Sumner in March?

In Sumner, in March, during 7.5 snowfall days, 2.72" (69mm) of snow is typically accumulated.

What is the average length of the day in March in Sumner?

In March, the average day length in Sumner is 11h and 58min.

When are sunrise and sunset in March in Sumner?

On the first day of March in Sumner, sunrise is at 6:42 am and sunset at 5:58 pm CST. On the last day of the month, sunrise is at 6:50 am and sunset at 7:33 pm CDT.

When does Daylight Saving Time (DST) start in March in Sumner?

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

How long on average sun shines in March in Sumner?

In Sumner, the average sunshine duration in March is 6h.

How high is the UV index in March in Sumner?

The average daily maximum UV index in March in Sumner, Iowa, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Sumner, IA

Average temperature in March - Sumner, IA
  • Average high temperature in March: 42.4°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in March: 28°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).

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Average pressure in March
Sumner, IA

Average pressure in March - Sumner, IA
  • Average pressure in March: 30.08"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in March
Sumner, IA

Average wind speed in March - Sumner, IA
  • Average wind speed in March: 10.4mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in March
Sumner, IA

Average humidity in March - Sumner, IA
  • Average humidity in March: 79%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in March
Sumner, IA

Average rainfall in March - Sumner, IA
  • Average rainfall in March: 1.85"

The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in March
Sumner, IA

Average rainfall days in March - Sumner, IA
  • Average rainfall days in March: 10.9 days

The month with the highest number of rainy days is May (20.3 days).
The months with the least rainy days are January and February (4.3 days).

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Average snowfall in March
Sumner, IA

Average snowfall in March - Sumner, IA
  • Average snowfall in March: 2.72"

The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in March
Sumner, IA

Average snowfall days in March - Sumner, IA
  • Average snowfall days in March: 7.5 days

The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in March /
Average sunshine in March
Sumner, IA

Average daylight in March / Average sunshine in March - Sumner, IA
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in March: 6h and 0min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in March
Sumner, IA

Average sunshine days in March - Sumner, IA
  • Average sunshine days in March: 12.9 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is June (7.3 days).

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Average UV index in March
Sumner, IA

Average UV index in March - Sumner, IA
  • Average UV index in March: 3

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in March
Sumner, IA

Average cloud cover in March - Sumner, IA
  • Average cloud cover in March: 52

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 32).

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Average visibility in March
Sumner, IA

Average visibility in March - Sumner, IA
  • Average visibility in March: 6mi

The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).

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Sumner, Iowa, USA

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