March weather forecast
Petersburg, IL

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Weather in March

March, the first month of the spring in Petersburg, is a cool month, with an average temperature ranging between min 35.2°F (1.8°C) and max 50.9°F (10.5°C).

Temperature

With the onset of March, the average high-temperature slightly shifts from February's cold 37.9°F (3.3°C) to a cool 50.9°F (10.5°C). Throughout the month of March, Petersburg expects an average low of 35.2°F (1.8°C).

Humidity

In Petersburg, the average relative humidity in March is 75%.

Rainfall

In Petersburg, in March, during 12.9 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Petersburg, Illinois, during the entire year, the rain falls for 146.4 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Petersburg, during March, snow falls for 3.5 days and regularly aggregates up to 1.42" (36mm) of snow. In Petersburg, Illinois, during the entire year, snow falls for 29.2 days and aggregates up to 10.39" (264mm) of snow.

Daylight

In March, the average length of the day in Petersburg is 11h and 59min.
On the first day of the month, sunrise is at 6:31 am and sunset at 5:51 pm CST. On the last day of March, in Petersburg, Illinois, sunrise is at 6:43 am and sunset at 7:23 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

The average sunshine in March is 6.4h.

UV index

In Petersburg, the average daily maximum UV index in March is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In March, an average UV index of 3 transforms into the following instructions:
Guard yourself - Avoiding sunburn is suggested. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are March temperatures in Petersburg?

Petersburg in March has an average high-temperature of 50.9°F (10.5°C) and an average low-temperature of 35.2°F (1.8°C).

What is the average humidity in March in Petersburg?

In March, the average relative humidity is 75%.

How many days does it rain in March in Petersburg?

In Petersburg, during March, the rain falls for 12.9 days and regularly aggregates up to 2.44" (62mm) of precipitation.

How many days does it snow in March in Petersburg?

In Petersburg, in March, during 3.5 snowfall days, 1.42" (36mm) of snow is typically accumulated.

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

In Petersburg, Illinois, the average day length in March is 11h and 59min.

When is the sunrise / sunset in March in Petersburg?

In March, on the first day of the month, sunrise is at 6:31 am and sunset at 5:51 pm CST. On the last day of the month, in Petersburg, Illinois, sunrise is at 6:43 am and sunset at 7:23 pm CDT.

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

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

How many hours of sunshine does Petersburg have in March?

In March, the average sunshine duration in Petersburg, Illinois, is 6.4h.

What is the UV index intensity in March in Petersburg?

In March, the average daily maximum UV index in Petersburg is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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
Petersburg, IL

Average temperature in March - Petersburg, IL
  • Average high temperature in March: 50.9°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in March: 35.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in March
Petersburg, IL

Average pressure in March - Petersburg, IL
  • Average pressure in March: 30.08"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in March
Petersburg, IL

Average wind speed in March - Petersburg, IL
  • Average wind speed in March: 10.1mph

The windiest months (with the highest average wind speed) are January, February and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in March
Petersburg, IL

Average humidity in March - Petersburg, IL
  • Average humidity in March: 75%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in March
Petersburg, IL

Average rainfall in March - Petersburg, IL
  • Average rainfall in March: 2.44"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is December (1.5").

Average rainfall days in March
Petersburg, IL

Average rainfall days in March - Petersburg, IL
  • Average rainfall days in March: 12.9 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in March
Petersburg, IL

Average snowfall in March - Petersburg, IL
  • Average snowfall in March: 1.42"

The month with the highest snowfall is January (4.02").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in March
Petersburg, IL

Average snowfall days in March - Petersburg, IL
  • Average snowfall days in March: 3.5 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in March /
Average sunshine in March
Petersburg, IL

Average daylight in March / Average sunshine in March - Petersburg, IL
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in March: 6h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in March
Petersburg, IL

Average sunshine days in March - Petersburg, IL
  • Average sunshine days in March: 15.1 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in March
Petersburg, IL

Average UV index in March - Petersburg, IL
  • Average UV index in March: 3

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 cloud cover in March
Petersburg, IL

Average cloud cover in March - Petersburg, IL
  • Average cloud cover in March: 48

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in March
Petersburg, IL

Average visibility in March - Petersburg, IL
  • Average visibility in March: 6mi

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

Petersburg, Illinois, USA

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