March weather forecast
Decatur, IN

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Weather in March

The first month of the spring, March, is a chilly month in Decatur, Indiana, with an average temperature fluctuating between 32.4°F (0.2°C) and 46.9°F (8.3°C).

Temperature

Decatur's March weather shows an increase in high-temperatures, moving from February's icy 35.2°F (1.8°C) to a chilly 46.9°F (8.3°C). Decatur, in March, experiences an average temperature of 32.4°F (0.2°C) at night.

Humidity

In Decatur, the average relative humidity in March is 76%.

Rainfall

In Decatur, in March, during 12.7 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 159.4 rainfall days, and 23.74" (603mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Decatur, during March, snow falls for 6.3 days and regularly aggregates up to 1.26" (32mm) of snow. Throughout the year, there are 48.4 snowfall days, and 10.47" (266mm) of snow is accumulated.

Daylight

The average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 7:12 am and sunset at 6:31 pm EST. On the last day of March, sunrise is at 7:23 am and sunset at 8:03 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In Decatur, the average sunshine in March is 5.9h.

UV index

In March, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 3 during March translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

What is the average March temperature?

Decatur in March has an average high-temperature of 46.9°F (8.3°C) and an average low-temperature of 32.4°F (0.2°C).

What is the average humidity in March?

In March, the average relative humidity in Decatur is 76%.

How many days does it rain in March?

In Decatur, Indiana, in March, it is raining for 12.7 days, with typically 2.09" (53mm) of accumulated precipitation.

How many days does it snow in March?

In Decatur, during March, snow falls for 6.3 days and regularly aggregates up to 1.26" (32mm) of snow.

What is the average length of the day in March?

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

What time are sunrise and sunset in March?

In March, on the first day of the month, sunrise is at 7:12 am and sunset at 6:31 pm EST. On the last day of the month, sunrise is at 7:23 am and sunset at 8:03 pm EDT.

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

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

How many hours of sunshine does Decatur have in March?

In March, the average sunshine duration is 5.9h.

What is the UV index intensity in March?

In March, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health risk 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
Decatur, IN

Average temperature in March - Decatur, IN
  • Average high temperature in March: 46.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in March: 32.4°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in March
Decatur, IN

Average pressure in March - Decatur, IN
  • Average pressure in March: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in March
Decatur, IN

Average wind speed in March - Decatur, IN
  • Average wind speed in March: 9.7mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in March
Decatur, IN

Average humidity in March - Decatur, IN
  • Average humidity in March: 76%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in March
Decatur, IN

Average rainfall in March - Decatur, IN
  • Average rainfall in March: 2.09"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.34").

Average rainfall days in March
Decatur, IN

Average rainfall days in March - Decatur, IN
  • Average rainfall days in March: 12.7 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.5 days).

Average snowfall in March
Decatur, IN

Average snowfall in March - Decatur, IN
  • Average snowfall in March: 1.26"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in March
Decatur, IN

Average snowfall days in March - Decatur, IN
  • Average snowfall days in March: 6.3 days

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in March /
Average sunshine in March
Decatur, IN

Average daylight in March / Average sunshine in March - Decatur, IN
  • Average daylight in March: 12h and 0min

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).

  • Average sunshine in March: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in March
Decatur, IN

Average sunshine days in March - Decatur, IN
  • Average sunshine days in March: 13 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (10 days).

Average UV index in March
Decatur, IN

Average UV index in March - Decatur, IN
  • Average UV index in March: 3

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

Average cloud cover in March
Decatur, IN

Average cloud cover in March - Decatur, IN
  • Average cloud cover in March: 51

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in March
Decatur, IN

Average visibility in March - Decatur, IN
  • Average visibility in March: 6mi

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

Decatur, Indiana, USA

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