March weather forecast and climate
Harwinton, CT

Weather in March

The first month of the spring, March, is still a cold month in Harwinton, Connecticut, with average temperature varying between 27.9°F (-2.3°C) and 42.4°F (5.8°C).

Temperature

In Harwinton, the average high-temperature marginally rises, from 34.3°F (1.3°C) in February, to a still wintry 42.4°F (5.8°C). In Harwinton, the average low-temperature is 27.9°F (-2.3°C).

Humidity

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

Rainfall

In Harwinton, it is raining for 13.2 days, with typically 2.6" (66mm) of accumulated precipitation. In Harwinton, during the entire year, the rain falls for 157.7 days and collects up to 32.72" (831mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In March, it is snowing for 8.2 days. Throughout March, 4.61" (117mm) of snow is accumulated. Throughout the year, there are 40 snowfall days, and 20.55" (522mm) of snow is accumulated.

Daylight

The average length of the day in March is 12h.

Sunshine

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

UV index

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the average humidity in March in Harwinton?

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

How much does it rain in Harwinton in March?

In Harwinton, Connecticut, during March, the rain falls for 13.2 days and regularly aggregates up to 2.6" (66mm) of precipitation.

How much does it snow in Harwinton in March?

In Harwinton, in March, snow falls for 8.2 days, with typically accumulated 4.61" (117mm) of snow.

How many hours of daylight does Harwinton have in March?

The average length of the day in March in Harwinton is 12h.

How long on average sun shines in March in Harwinton?

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

When is the lowest UV index in Harwinton?

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

What is the UV index intensity in March in Harwinton?

The average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.

Average temperature in March
Harwinton, CT

Average temperature in March - Harwinton, CT
  • Average high temperature in March: 42.4°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in March: 27.9°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 (19.2°F).

[Resources]

Average pressure in March
Harwinton, CT

Average pressure in March - Harwinton, CT
  • Average pressure in March: 30.05"

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

[Resources]

Average wind speed in March
Harwinton, CT

Average wind speed in March - Harwinton, CT
  • Average wind speed in March: 8.3mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

[Resources]

Average humidity in March
Harwinton, CT

Average humidity in March - Harwinton, 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 (73%).

[Resources]

Average rainfall in March
Harwinton, CT

Average rainfall in March - Harwinton, CT
  • Average rainfall in March: 2.6"

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (2.01").

[Resources]

Average rainfall days in March
Harwinton, CT

Average rainfall days in March - Harwinton, CT
  • Average rainfall days in March: 13.2 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.2 days).

[Resources]

Average snowfall in March
Harwinton, CT

Average snowfall in March - Harwinton, CT
  • Average snowfall in March: 4.61"

The month with the highest snowfall is February (5.28").
Months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in March
Harwinton, CT

Average snowfall days in March - Harwinton, CT
  • Average snowfall days in March: 8.2 days

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

[Resources]

Average daylight in March /
Average sunshine in March
Harwinton, CT

Average daylight in March / Average sunshine in March - Harwinton, CT
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in March: 5.9h

Months with the most sunshine are July and August (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 4.4h).

[Resources]

Average sunshine days in March
Harwinton, CT

Average sunshine days in March - Harwinton, CT
  • Average sunshine days in March: 13.4 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (11.8 days).

[Resources]

Average UV index in March
Harwinton, CT

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

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

[Resources]

Average cloud cover in March
Harwinton, CT

Average cloud cover in March - Harwinton, CT
  • Average cloud cover in March: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).

[Resources]

Average visibility in March
Harwinton, CT

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

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location