May weather forecast
Port Gibson, MS

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Weather in May

May, the last month of the spring in Port Gibson, is also a moderately hot month, with an average temperature ranging between max 83.8°F (28.8°C) and min 63.5°F (17.5°C).

Temperature

With the beginning of May, Port Gibson's average high-temperature sees a minor increase, transitioning from 76.1°F (24.5°C) in April to a still warm 83.8°F (28.8°C). In the month of May, the average temperature dips to an enjoyable 63.5°F (17.5°C) during the night.

Heat index

In May, the heat index is evaluated at a tropical 93.2°F (34°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In May, the average relative humidity in Port Gibson is 77%.

Rainfall

In May, the rain falls for 12.8 days. Throughout May, 1.97" (50mm) of precipitation is accumulated. In Port Gibson, during the entire year, the rain falls for 141.8 days and collects up to 23.39" (594mm) of precipitation.

Snowfall

In Port Gibson, snow does not fall in April through November.

Daylight

In May, the average length of the day is 13h and 48min.
On the first day of May, sunrise is at 6:17 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:04 pm CDT.

Sunshine

In Port Gibson, the average sunshine in May 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 threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

How hot is May?

In Port Gibson, 83.8°F (28.8°C) is the average high-temperature and 63.5°F (17.5°C) is the average low-temperature during May. In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 93.2°F (34°C).

What is the average humidity in May?

The average relative humidity in May is 77%.

How much does it rain in May?

In May, the rain falls for 12.8 days. Throughout May, 1.97" (50mm) of precipitation is accumulated.

When it does not snow?

April through November are months without snowfall.

How many hours of daylight does Port Gibson have in May?

The average day length in May is 13h and 48min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:17 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:04 pm CDT.

How many hours of sunshine does Port Gibson have in May?

In May, the average sunshine duration is 9.8h.

What is the UV index intensity in May?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Port Gibson, MS

Average temperature in May - Port Gibson, MS
  • Average high temperature in May: 83.8°F

The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in May: 63.5°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

Average pressure in May
Port Gibson, MS

Average pressure in May - Port Gibson, MS
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Port Gibson, MS

Average wind speed in May - Port Gibson, MS
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).

Average humidity in May
Port Gibson, MS

Average humidity in May - Port Gibson, MS
  • Average humidity in May: 77%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (69%).

Average rainfall in May
Port Gibson, MS

Average rainfall in May - Port Gibson, MS
  • Average rainfall in May: 1.97"

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is November (1.22").

Average rainfall days in May
Port Gibson, MS

Average rainfall days in May - Port Gibson, MS
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is October (6.9 days).

Average snowfall in May
Port Gibson, MS

Average snowfall in May - Port Gibson, MS
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Port Gibson, MS

Average snowfall days in May - Port Gibson, 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
Port Gibson, MS

Average daylight in May / Average sunshine in May - Port Gibson, 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 month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in May
Port Gibson, MS

Average sunshine days in May - Port Gibson, MS
  • Average sunshine days in May: 16.1 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is August (11 days).

Average UV index in May
Port Gibson, MS

Average UV index in May - Port Gibson, MS
  • Average UV index in May: 6

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

Average cloud cover in May
Port Gibson, MS

Average cloud cover in May - Port Gibson, MS
  • Average cloud cover in May: 34

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in May
Port Gibson, MS

Average visibility in May - Port Gibson, MS
  • Average visibility in May: 5mi

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

Port Gibson, Mississippi, USA

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