May weather forecast
Hallettsville, TX

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Weather in May

The last month of the spring, May, is also a moderately hot month in Hallettsville, Texas, with an average temperature ranging between max 84.7°F (29.3°C) and min 67.6°F (19.8°C).

Temperature

May sees a marginal temperature increase, moving from a warm 78.1°F (25.6°C) in April to a still moderately hot 84.7°F (29.3°C). Hallettsville's average low-temperature during May nights is observed to be an enjoyable 67.6°F (19.8°C).

Heat index

May's mean heat index is calculated to be a fiery hot 95°F (35°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The months with the highest humidity in Hallettsville are March and May, with an average relative humidity of 78%.

Rainfall

The month with the most rainfall in Hallettsville is May, when the rain falls for 15.6 days and typically aggregates up to 3.86" (98mm) of precipitation.

Snowfall

February through November are months without snowfall in Hallettsville.

Daylight

The average length of the day in May is 13h and 38min.
On the first day of May in Hallettsville, sunrise is at 6:44 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:22 pm CDT.

Sunshine

In May, the average sunshine in Hallettsville is 8.2h.

UV index

In Hallettsville, Texas, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

How hot is it in Hallettsville in May?

In May, in Hallettsville, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 67.6°F (19.8°C). In May, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 95°F (35°C).

What is the most humid month in Hallettsville?

March and May, with an average relative humidity of 78%, are most humid months in Hallettsville.

What is the average humidity in May in Hallettsville?

The average relative humidity in May is 78%.

What is the rainiest month in Hallettsville?

The month with the most rainfall is May, when the rain falls for 15.6 days and typically aggregates up to 3.86" (98mm) of precipitation.

How many days does it rain in May in Hallettsville?

In Hallettsville, Texas, in May, it is raining for 15.6 days, with typically 3.86" (98mm) of accumulated precipitation.

When it does not snow in Hallettsville?

In Hallettsville, Texas, snow does not fall in February through November.

How many hours of daylight does Hallettsville have in May?

The average day length in May is 13h and 38min.

When is the sunrise / sunset in May in Hallettsville?

On the first day of May, sunrise is at 6:44 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:22 pm CDT.

How long on average sun shines in May in Hallettsville?

The average sunshine duration in May in Hallettsville, Texas, is 8.2h.

What is the UV index intensity in May in Hallettsville?

In May, the average daily maximum UV index in Hallettsville, Texas, is 6. A UV Index value of 6 to 7 symbolizes 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
Hallettsville, TX

Average temperature in May - Hallettsville, TX
  • Average high temperature in May: 84.7°F

The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (61°F).

  • Average low temperature in May: 67.6°F

The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).

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Average pressure in May
Hallettsville, TX

Average pressure in May - Hallettsville, TX
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Hallettsville, TX

Average wind speed in May - Hallettsville, TX
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is September (6mph).

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Average humidity in May
Hallettsville, TX

Average humidity in May - Hallettsville, TX
  • Average humidity in May: 78%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is August (68%).

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Average rainfall in May
Hallettsville, TX

Average rainfall in May - Hallettsville, TX
  • Average rainfall in May: 3.86"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in May
Hallettsville, TX

Average rainfall days in May - Hallettsville, TX
  • Average rainfall days in May: 15.6 days

The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is January (11.2 days).

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Average snowfall in May
Hallettsville, TX

Average snowfall in May - Hallettsville, TX
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Hallettsville, TX

Average snowfall days in May - Hallettsville, TX
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Hallettsville, TX

Average daylight in May / Average sunshine in May - Hallettsville, TX
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 8h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days in May
Hallettsville, TX

Average sunshine days in May - Hallettsville, TX
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (9.8 days).

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Average UV index in May
Hallettsville, TX

Average UV index in May - Hallettsville, 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).

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Average cloud cover in May
Hallettsville, TX

Average cloud cover in May - Hallettsville, TX
  • Average cloud cover in May: 47

The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in May
Hallettsville, TX

Average visibility in May - Hallettsville, TX
  • Average visibility in May: 5mi

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

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Hallettsville, Texas, USA

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