Jackson
Mississippi, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Jackson, MS

The view of the Capitol building in Jackson, Mississippi, from a beautiful tree park
The view of the Capitol building in Jackson, Mississippi, from a beautiful tree park
The last month of the spring, May, is another warm month in Jackson, Mississippi, with temperature in the range of an average low of 61.5°F (16.4°C) and an average high of 83.1°F (28.4°C).

Temperature

In Jackson, the average high-temperature marginally rises, from a moderately hot 75.9°F (24.4°C) in April, to a still warm 83.1°F (28.4°C). In May, in Jackson, the average low-temperature is 61.5°F (16.4°C).

Heat index

In May, the average heat index is appraised at a tropical 89.8°F (32.1°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, pregnancy). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In May, the average relative humidity is 73.8%.

Rainfall

In Jackson, during May, the rain falls for 8.9 days and regularly aggregates up to 4.4" (111.3mm) of precipitation. In Jackson, during the entire year, the rain falls for 108.6 days and collects up to 54.1" (1375.2mm) of precipitation.

Daylight

In May, the average length of the day in Jackson is 13.8h.

Sunshine

In May, the average sunshine in Jackson is 8.9h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 10. A UV Index reading of 8 to 10 represents a very high health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 10 translate into the following recommendations:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used.

What is the temperature in May in Jackson?

The average high-temperature, in May, in Jackson, Mississippi, is 83.1°F (28.4°C), while the average low-temperature is 61.5°F (16.4°C). The average heat index (a.k.a. 'real feel', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, in May is appraised at 89.8°F (32.1°C).

What is the average humidity in May in Jackson?

In May, the average relative humidity in Jackson is 73.8%.

How much does it rain in Jackson in May?

In Jackson, Mississippi, in May, during 8.9 rainfall days, 4.4" (111.3mm) of precipitation is typically accumulated.

How many hours of daylight does Jackson have in May?

In Jackson, Mississippi, the average length of the day in May is 13.8h.

How many hours of sunshine does Jackson have in May?

The average sunshine in May in Jackson is 8.9h.

What are the months with the highest UV index in Jackson?

Months with the highest UV index in Jackson are May through August, with an average maximum UV index of 10.

How high is the UV index in May in Jackson?

The average daily maximum UV index in May in Jackson, Mississippi, is 10. A UV Index estimate of 8 to 10 represents a very high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in May - Jackson, MS
  • Average high temperature in May: 83.1°F

Warmest months (with the highest average high temperature) are July and August (91.6°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in May: 61.6°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (35.3°F).

Average humidity in May - Jackson, MS
  • Average humidity in May: 73.8%

The month with the highest relative humidity is September (77.3%).
The month with the lowest relative humidity is March (71.1%).

Average rainfall in May - Jackson, MS
  • Average rainfall in May: 4.4"

The wettest month (with the highest rainfall) is December (5.2").
The driest month (with the lowest rainfall) is September (3").

Average rainfall days in May - Jackson, MS
  • Average rainfall days in May: 8.9 days

The month with the highest number of rainy days is July (10.7 days).
The month with the lowest number of rainy days is September (7 days).

Average daylight in May / Average sunshine in May - Jackson, MS
  • Average daylight in May: 13.8h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10.1h).

  • Average sunshine in May: 8.9h

The month with most sunshine is June (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 4.9h).

Average UV index in May - Jackson, MS
  • Average UV index in May: 10

Months with the highest UV index are May, June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).