May weather forecastMason, TX

May

Weather in May

May, the last month of the spring in Mason, is also a moderately hot month, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 64.4°F (18°C).

Temperature

The start of May brings a subtle rise in the average high-temperature, moving from 78.3°F (25.7°C) in April to a still moderately hot 84.4°F (29.1°C). Mason, during the month of May, experiences an average low-temperature of 64.4°F (18°C).

Heat index

For most parts of May, the heat index is appraised at a tropical 89.6°F (32°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the sun directly might heighten 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. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

With an average relative humidity of 66%, May is the most humid month.

Rainfall

The month with the most rainfall is May, when the rain falls for 13.8 days and typically aggregates up to 2.52" (64mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

In Mason, the average length of the day in May is 13h and 43min.
On the first day of May, sunrise is at 6:52 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:34 pm CDT.

Sunshine

In May, the average sunshine is 9.3h.

UV index

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 6 during May translates into the following guidance:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in May, in Mason, is 84.4°F (29.1°C), while the average low-temperature is 64.4°F (18°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in May is appraised at 89.6°F (32°C).

With an average relative humidity of 66%, May is the most humid month.

In May, the average relative humidity is 66%.

The month with the most rainfall is May, when the rain falls for 13.8 days and typically aggregates up to 2.52" (64mm) of precipitation.

In Mason, in May, during 13.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

In Mason, snow does not fall in March through November.

In May, the average day length is 13h and 43min.

On the first day of May, sunrise is at 6:52 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:34 pm CDT.

In Mason, the average sunshine duration in May is 9.3h.

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

78.3°F

84.4°F

91.4°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13mph

12.2mph

11.5mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

10.2

13.8

8.3

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

14.3

20.3

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Mason, TX

Average high temperature in May: 84.4°F

The warmest months (with the highest average high temperature) are July and August (94.5°F).
The month with the lowest average high temperature is January (59.4°F).

Average low temperature in May: 64.4°F

The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

Average pressure in May
Mason, TX

Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.89"Hg).

Average wind speed in May
Mason, TX

Average wind speed in May: 11.4mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

Average humidity in May
Mason, TX

Average humidity in May: 66%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is August (53%).

Average rainfall in May
Mason, TX

Average rainfall in May: 2.52"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days in May
Mason, TX

Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in May
Mason, TX

Average snowfall in May: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Mason, TX

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.9 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
Mason, TX

Average daylight in May: 13h and 42min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

Average sunshine in May: 9h and 18min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in May
Mason, TX

Average sunshine days in May: 14.3 days

The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is May (14.3 days).

Average UV index in May
Mason, TX

Average UV index in May: 6

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

Average cloud cover in May
Mason, TX

Average cloud cover in May: 35

The months with the most cloud cover are March and May (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in May
Mason, TX

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).