March weather forecast
Cornwall, CT

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Weather in March

The first month of the spring, March, is also an icy month in Cornwall, Connecticut, with an average temperature varying between 27.5°F (-2.5°C) and 42.3°F (5.7°C).

Temperature

The shift into March is marked by a modest rise in the average high-temperature, moving from February's wintry 34.3°F (1.3°C) to a still icy 42.3°F (5.7°C). An average low-temperature of 27.5°F (-2.5°C) marks the nights throughout March.

Humidity

In March, the average relative humidity in Cornwall, Connecticut, is 78%.

Rainfall

In Cornwall, during March, the rain falls for 12.4 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Cornwall, during the entire year, the rain falls for 160.5 days and collects up to 33.86" (860mm) of precipitation.

Snowfall

Months with snowfall in Cornwall are January through May, October through December. In Cornwall, Connecticut, during March, snow falls for 8.4 days and regularly aggregates up to 4.09" (104mm) of snow. In Cornwall, during the entire year, snow falls for 40.2 days and aggregates up to 20.39" (518mm) of snow.

Daylight

In March, the average length of the day in Cornwall is 11h and 58min.
On the first day of the month, sunrise is at 6:26 am and sunset at 5:44 pm EST. On the last day of March, sunrise is at 6:36 am and sunset at 7:18 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

The average sunshine in March in Cornwall is 5.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 2 in March interprets into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is March in Cornwall?

During March, Cornwall experiences an average high-temperature of 42.3°F (5.7°C) and a low-temperature of 27.5°F (-2.5°C).

What is the average humidity in March in Cornwall?

In March, the average relative humidity in Cornwall, Connecticut, is 78%.

How many days does it rain in March in Cornwall?

In Cornwall, Connecticut, during March, the rain falls for 12.4 days and regularly aggregates up to 2.44" (62mm) of precipitation.

How much does it snow in Cornwall in March?

In March, it is snowing for 8.4 days. Throughout March, 4.09" (104mm) of snow is accumulated.

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

The average day length in March in Cornwall, Connecticut, is 11h and 58min.

What time are sunrise and sunset in March in Cornwall?

In March, on the first day of the month, sunrise is at 6:26 am and sunset at 5:44 pm EST. On the last day of the month, in Cornwall, Connecticut, sunrise is at 6:36 am and sunset at 7:18 pm EDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Cornwall, Connecticut, 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 Cornwall have in March?

The average sunshine duration in March in Cornwall is 5.8h.

What are the months with the lowest UV index in Cornwall?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Cornwall.

What is the UV index reading in March in Cornwall?

In March, the average daily maximum UV index in Cornwall is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Cornwall, CT

Average temperature in March - Cornwall, CT
  • Average high temperature in March: 42.3°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 (30.9°F).

  • Average low temperature in March: 27.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in March
Cornwall, CT

Average pressure in March - Cornwall, CT
  • Average pressure in March: 30.05"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in March
Cornwall, CT

Average wind speed in March - Cornwall, CT
  • Average wind speed in March: 8mph

The windiest months (with the highest average wind speed) are January and March (8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in March
Cornwall, CT

Average humidity in March - Cornwall, CT
  • Average humidity in March: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in March
Cornwall, CT

Average rainfall in March - Cornwall, CT
  • Average rainfall in March: 2.44"

The wettest month (with the highest rainfall) is July (3.54").
The driest month (with the least rainfall) is January (2.17").

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Average rainfall days in March
Cornwall, CT

Average rainfall days in March - Cornwall, CT
  • Average rainfall days in March: 12.4 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.7 days).

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Average snowfall in March
Cornwall, CT

Average snowfall in March - Cornwall, CT
  • Average snowfall in March: 4.09"

The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in March
Cornwall, CT

Average snowfall days in March - Cornwall, CT
  • Average snowfall days in March: 8.4 days

The month with the highest number of snowfall days is February (10.3 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
Cornwall, CT

Average daylight in March / Average sunshine in March - Cornwall, CT
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in March: 5h and 5min

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

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Average sunshine days in March
Cornwall, CT

Average sunshine days in March - Cornwall, CT
  • Average sunshine days in March: 12.8 days

The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in March
Cornwall, CT

Average UV index in March - Cornwall, CT
  • Average UV index in March: 2

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in March
Cornwall, CT

Average cloud cover in March - Cornwall, CT
  • Average cloud cover in March: 52

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in March
Cornwall, CT

Average visibility in March - Cornwall, CT
  • Average visibility in March: 5mi

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

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Cornwall, Connecticut, USA

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