May weather forecast
Jackson, MS

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The Capitol building and beautiful tree park in Jackson, Mississippi
The Capitol building and beautiful tree park in Jackson, Mississippi

Weather in May

May ushers in a sweet spot of pleasant weather in the heart of Jackson, Mississippi, before the impending summer heat arrives. When it's not raining, sunshine dominates the day, luring everyone outdoors. While the evenings are mildly cool, the days see a significant rise in temperature. One may notice that the wind starts to drop, making the outdoors much more enjoyable. It's worth noting that the lushness of the city is amplified by the 2.13" (54mm) of rainfall experienced in May.

Temperature

May's arrival signals a subtle increase in average high-temperatures, moving from April's 76.1°F (24.5°C) to a still moderately hot 83.8°F (28.8°C). Throughout May, the average low-temperature dips to a refreshing 63.1°F (17.3°C).

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.
Keep in mind the heat index values are meant for areas in shade and with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

The average relative humidity in May in Jackson is 74%.

Rainfall

In Jackson, Mississippi, in May, it is raining for 13.8 days, with typically 2.13" (54mm) of accumulated precipitation. In Jackson, during the entire year, the rain falls for 152.1 days and collects up to 29.72" (755mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

The average length of the day in May is 13h and 49min.
On the first day of May in Jackson, sunrise is at 6:13 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:02 pm CDT.

Sunshine

The average sunshine in May is 10h.

UV index

In Jackson, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Jackson during May?

Jackson in May has an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63.1°F (17.3°C). In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 91.4°F (33°C).

What is the average humidity in May in Jackson?

In May, the average relative humidity in Jackson, Mississippi, is 74%.

How many days does it rain in May in Jackson?

In Jackson, Mississippi, during May, the rain falls for 13.8 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow in Jackson?

In Jackson, snow does not fall in March through December.

How many hours of daylight does Jackson have in May?

In May, the average day length in Jackson, Mississippi, is 13h and 49min.

When are sunrise and sunset in May in Jackson?

In May, on the first day of the month, sunrise is at 6:13 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:02 pm CDT.

How many hours of sunshine does Jackson have in May?

The average sunshine duration in May in Jackson is 10h.

What is the UV index intensity in May in Jackson?

In Jackson, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Jackson, MS

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

The warmest months (with the highest average high temperature) are July and August (91.8°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in May: 63.1°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in May
Jackson, MS

Average pressure in May - Jackson, MS
  • Average pressure in May: 29.99"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
Jackson, MS

Average wind speed in May - Jackson, MS
  • Average wind speed in May: 6.3mph

The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

Average humidity in May
Jackson, MS

Average humidity in May - Jackson, MS
  • Average humidity in May: 74%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in May
Jackson, MS

Average rainfall in May - Jackson, MS
  • Average rainfall in May: 2.13"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is October (1.81").

Average rainfall days in May
Jackson, MS

Average rainfall days in May - Jackson, MS
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in May
Jackson, MS

Average snowfall in May - Jackson, MS
  • Average snowfall in May: 0"

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

Average snowfall days in May
Jackson, MS

Average snowfall days in May - Jackson, MS
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (1 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
Jackson, MS

Average daylight in May / Average sunshine in May - Jackson, 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: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in May
Jackson, MS

Average sunshine days in May - Jackson, MS
  • Average sunshine days in May: 15.2 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in May
Jackson, MS

Average UV index in May - Jackson, 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
Jackson, MS

Average cloud cover in May - Jackson, MS
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in May
Jackson, MS

Average visibility in May - Jackson, MS
  • Average visibility in May: 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).

Jackson, Mississippi, USA

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