March weather forecast
Grafton, IL

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Weather in March

The first month of the spring, March, is a cool month in Grafton, Illinois, with an average temperature fluctuating between 37.6°F (3.1°C) and 53.6°F (12°C).

Temperature

An increase in the average high-temperature marks March, moving from February's wintry 41°F (5°C) to a cool 53.6°F (12°C). Grafton observes an average low-temperature of 37.6°F (3.1°C) during March.

Humidity

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

Rainfall

In Grafton, in March, it is raining for 13.4 days, with typically 2.05" (52mm) of accumulated precipitation. In Grafton, during the entire year, the rain falls for 138.8 days and collects up to 27.6" (701mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. March is the last month it regularly snows in Grafton. During 1.8 snowfall days, in March, Grafton aggregates 0.55" (14mm) of snow. Throughout the year, in Grafton, there are 17.9 snowfall days, and 5.12" (130mm) of snow is accumulated.

Daylight

In Grafton, the average length of the day in March is 11h and 59min.
On the first day of March in Grafton, Illinois, sunrise is at 6:32 am and sunset at 5:54 pm CST. On the last day of the month, sunrise is at 6:46 am and sunset at 7:24 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 Grafton, the average sunshine in March is 6.5h.

UV index

The average daily maximum UV index in March in Grafton is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 4 in March translates into these instructions:
Take precautions - Protection against sunburn is recommended. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in March in Grafton?

In Grafton, in March, the average high-temperature is 53.6°F (12°C), and the average low-temperature is 37.6°F (3.1°C).

What is the average humidity in March in Grafton?

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

How many days does it rain in March in Grafton?

In March, in Grafton, the rain falls for 13.4 days. Throughout March, 2.05" (52mm) of precipitation is accumulated.

What is the last month it snows in Grafton?

March is the last month it regularly snows. During 1.8 snowfall days, in March, Grafton aggregates 0.55" (14mm) of snow.

How many hours of daylight does Grafton have in March?

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

When are sunrise and sunset in March in Grafton?

In March, on the first day of the month, sunrise is at 6:32 am and sunset at 5:54 pm CST. On the last day of the month, in Grafton, Illinois, sunrise is at 6:46 am and sunset at 7:24 pm CDT.

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

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 long on average sun shines in March in Grafton?

In Grafton, the average sunshine duration in March is 6.5h.

How high is the UV index in March in Grafton?

In March, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe 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
Grafton, IL

Average temperature in March - Grafton, IL
  • Average high temperature in March: 53.6°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in March: 37.6°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in March
Grafton, IL

Average pressure in March - Grafton, IL
  • Average pressure in March: 30.07"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in March
Grafton, IL

Average wind speed in March - Grafton, IL
  • Average wind speed in March: 9.1mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in March
Grafton, IL

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

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in March
Grafton, IL

Average rainfall in March - Grafton, IL
  • Average rainfall in March: 2.05"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is February (1.3").

Average rainfall days in March
Grafton, IL

Average rainfall days in March - Grafton, IL
  • Average rainfall days in March: 13.4 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in March
Grafton, IL

Average snowfall in March - Grafton, IL
  • Average snowfall in March: 0.55"

The months with the highest snowfall are January and February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in March
Grafton, IL

Average snowfall days in March - Grafton, IL
  • Average snowfall days in March: 1.8 days

The month with the highest number of snowfall days is January (5.7 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
Grafton, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in March: 6h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in March
Grafton, IL

Average sunshine days in March - Grafton, IL
  • Average sunshine days in March: 15.2 days

The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in March
Grafton, IL

Average UV index in March - Grafton, IL
  • Average UV index in March: 4

The months with the highest UV index are May, 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
Grafton, IL

Average cloud cover in March - Grafton, IL
  • Average cloud cover in March: 47

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in March
Grafton, IL

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

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).

Grafton, Illinois, USA

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