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

May weather forecast and climate
Natchez, MS

The last month of the spring, May, is another warm month in Natchez, Mississippi, with average temperature ranging between min 64.4°F (18°C) and max 82.9°F (28.3°C).

Temperature

In Natchez, Mississippi, the average high-temperature marginally rises, from 75.4°F (24.1°C) in April, to a still moderately hot 82.9°F (28.3°C). In Natchez, the average low-temperature is 64.4°F (18°C).

Heat index

The average heat index in May is appraised at a hot 90.5°F (32.5°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, pregnancy), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Natchez, in May, it is raining for 15.3 days, with typically 3.07" (78mm) of accumulated precipitation. In Natchez, Mississippi, during the entire year, the rain falls for 168.8 days and collects up to 37.52" (953mm) of precipitation.

Snowfall

In Natchez snow does not fall in April through November.

Daylight

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

Sunshine

The average sunshine is 9.8h.

UV index

In Natchez, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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.

What is the temperature in May in Natchez?

In Natchez, in May, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 64.4°F (18°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that calculates temperature value influenced by the moisture in the air, in May is appraised at 90.5°F (32.5°C).

What is the average humidity in May in Natchez?

In May, the average relative humidity in Natchez, Mississippi, is 78%.

How much does it rain in Natchez in May?

In Natchez, in May, it is raining for 15.3 days, with typically 3.07" (78mm) of accumulated precipitation.

When it does not snow in Natchez?

April through November are months without snowfall in Natchez.

What is the average length of the day in May in Natchez?

The average length of the day in May in Natchez, Mississippi, is 13.8h.

How many hours of sunshine does Natchez have in May?

In May, the average sunshine in Natchez, Mississippi, is 9.8h.

How high is the UV index in May in Natchez?

In Natchez, Mississippi, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in May - Natchez, MS
  • Average high temperature in May: 82.9°F

The warmest months (with the highest average high temperature) are July and August (91°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in May: 64.4°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).

Average humidity in May - Natchez, MS
  • Average humidity in May: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May - Natchez, MS
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in May - Natchez, MS
  • Average rainfall days in May: 15.3 days

Months with the highest number of rainy days are July and August (19.3 days).
The month with the least rainy days is October (8.9 days).

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

The month with the highest snowfall is January (0.43").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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

The month with the highest number of snowfall days is January (0.8 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in May: 9.8h

The month with the most sunshine is June (Average sunshine: 10.3h).
The month with the least sunshine is December (Average sunshine: 4.8h).

Average UV index in May - Natchez, MS
  • Average UV index in May: 6

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