May weather forecast
New Haven, MS

Share

Weather in May

May, the last month of the spring in New Haven, is also a moderately hot month, with an average temperature fluctuating between 83.8°F (28.8°C) and 62.6°F (17°C).

Temperature

May's onset brings a subtle temperature rise, moving from a warm 76.8°F (24.9°C) in April to a still moderately hot 83.8°F (28.8°C). New Haven records an average low of 62.6°F (17°C) throughout the nights in May.

Heat index

The heat index for May is estimated at a tropical 91.4°F (33°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In New Haven, the average relative humidity in May is 75%.

Rainfall

In New Haven, during May, the rain falls for 12.5 days and regularly aggregates up to 2.05" (52mm) of precipitation. In New Haven, Mississippi, during the entire year, the rain falls for 152.9 days and collects up to 23.66" (601mm) of precipitation.

Snowfall

April through November are months without snowfall in New Haven.

Daylight

The average length of the day in May is 13h and 47min.
On the first day of May, sunrise is at 6:11 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:58 pm CDT.

Sunshine

The average sunshine in May in New Haven, Mississippi, is 9.8h.

UV index

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in New Haven in May?

In New Haven, 83.8°F (28.8°C) is the average high-temperature and 62.6°F (17°C) is the average low-temperature during May. In May, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in May in New Haven?

The average relative humidity in May in New Haven is 75%.

How many days does it rain in May in New Haven?

In May, in New Haven, the rain falls for 12.5 days. Throughout May, 2.05" (52mm) of precipitation is accumulated.

When it does not snow in New Haven?

April through November are months without snowfall in New Haven.

How many hours of daylight does New Haven have in May?

The average day length in May in New Haven is 13h and 47min.

When are sunrise and sunset in May in New Haven?

In May, on the first day of the month, sunrise is at 6:11 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:58 pm CDT.

How long on average sun shines in May in New Haven?

In New Haven, the average sunshine duration in May is 9.8h.

How high is the UV index in May in New Haven?

In New Haven, Mississippi, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
New Haven, MS

Average temperature in May - New Haven, MS
  • Average high temperature in May: 83.8°F

The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in May: 62.6°F

The months with the highest average low temperature are July and August (71.8°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).

Average pressure in May
New Haven, MS

Average pressure in May - New Haven, MS
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in May
New Haven, MS

Average wind speed in May - New Haven, MS
  • Average wind speed in May: 5.9mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in May
New Haven, MS

Average humidity in May - New Haven, MS
  • Average humidity in May: 75%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
New Haven, MS

Average rainfall in May - New Haven, MS
  • Average rainfall in May: 2.05"

The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is November (1.22").

Average rainfall days in May
New Haven, MS

Average rainfall days in May - New Haven, MS
  • Average rainfall days in May: 12.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (7.7 days).

Average snowfall in May
New Haven, MS

Average snowfall in May - New Haven, MS
  • Average snowfall in May: 0"

The month with the highest snowfall is December (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
New Haven, MS

Average snowfall days in May - New Haven, MS
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
New Haven, MS

Average daylight in May / Average sunshine in May - New Haven, MS
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in May
New Haven, MS

Average sunshine days in May - New Haven, MS
  • Average sunshine days in May: 16.2 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is August (8.7 days).

Average UV index in May
New Haven, MS

Average UV index in May - New Haven, MS
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in May
New Haven, MS

Average cloud cover in May - New Haven, MS
  • Average cloud cover in May: 36

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in May
New Haven, MS

Average visibility in May - New Haven, MS
  • Average visibility in May: 5mi

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

New Haven, Mississippi, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location