May weather forecast
Morriston, MS

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Weather in May

May, the last month of the spring in Morriston, is another warm month, with an average temperature ranging between min 63.7°F (17.6°C) and max 84.7°F (29.3°C).

Temperature

As Morriston welcomes May, the average high-temperature sees a modest rise, transitioning from 77.7°F (25.4°C) in April to a still moderately hot 84.7°F (29.3°C). Throughout May, an average nighttime temperature of 63.7°F (17.6°C) is experienced.

Heat index

The heat index for May is estimated at a tropical 93.2°F (34°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

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

Rainfall

In May, the rain falls for 14.7 days. Throughout May, 2.95" (75mm) of precipitation is accumulated. In Morriston, during the entire year, the rain falls for 177.1 days and collects up to 36.42" (925mm) of precipitation.

Snowfall

In Morriston, snow does not fall in April through November.

Daylight

In May, the average length of the day is 13h and 46min.
On the first day of May in Morriston, sunrise is at 6:10 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:56 pm CDT.

Sunshine

In Morriston, the average sunshine in May is 10h.

UV index

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, an average UV index of 6 transforms into the following instructions:
Ward off overexposure. Defence against solar harm is crucial. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

How hot is May?

The average high-temperature and low-temperature during May are 84.7°F (29.3°C) and 63.7°F (17.6°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in May is estimated at 93.2°F (34°C).

What is the average humidity in May?

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

How much does it rain in May?

In May, the rain falls for 14.7 days. Throughout May, 2.95" (75mm) of precipitation is accumulated.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in May?

In May, the average day length is 13h and 46min.

When are sunrise and sunset in May?

On the first day of May in Morriston, sunrise is at 6:10 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:56 pm CDT.

How long on average sun shines in May?

In Morriston, the average sunshine duration in May is 10h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Morriston, MS

Average temperature in May - Morriston, MS
  • Average high temperature in May: 84.7°F

The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in May: 63.7°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

Average pressure in May
Morriston, MS

Average pressure in May - Morriston, MS
  • Average pressure in May: 30"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
Morriston, MS

Average wind speed in May - Morriston, MS
  • Average wind speed in May: 5.6mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).

Average humidity in May
Morriston, MS

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

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

Average rainfall in May
Morriston, MS

Average rainfall in May - Morriston, MS
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in May
Morriston, MS

Average rainfall days in May - Morriston, MS
  • Average rainfall days in May: 14.7 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in May
Morriston, MS

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

The month with the highest snowfall is December (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Morriston, MS

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

The month with the highest number of snowfall days is January (0.5 days).
The 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
Morriston, MS

Average daylight in May / Average sunshine in May - Morriston, 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 December (Average sunshine: 4h and 54min).

Average sunshine days in May
Morriston, MS

Average sunshine days in May - Morriston, MS
  • Average sunshine days in May: 14.5 days

The months with the most sunshine days are October and November (19.8 days).
The month with the least sunshine days is August (6.4 days).

Average UV index in May
Morriston, MS

Average UV index in May - Morriston, 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
Morriston, MS

Average cloud cover in May - Morriston, MS
  • Average cloud cover in May: 36

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

Average visibility in May
Morriston, MS

Average visibility in May - Morriston, MS
  • Average visibility in May: 5mi

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

Morriston, Mississippi, USA

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