May weather forecast
Porter Heights, TX

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Weather in May

May, the last month of the spring in Porter Heights, is a tropical month, with an average temperature ranging between min 67.8°F (19.9°C) and max 86°F (30°C).

Temperature

The start of May is characterized by a subtle increase in the average high-temperature, transitioning from a moderately hot 78.8°F (26°C) in April to a tropical 86°F (30°C). In May, the average low-temperature is a refreshing 67.8°F (19.9°C).

Heat index

Throughout May, the heat index is computed to be a very hot 96.8°F (36°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In May, the average relative humidity is 75%.

Rainfall

May is the month with the most rainfall. Rain falls for 13.6 days and accumulates 2.83" (72mm) of precipitation.

Snowfall

In Porter Heights, snow does not fall in January through November.

Daylight

In Porter Heights, the average length of the day in May is 13h and 41min.
On the first day of May, sunrise is at 6:37 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:17 pm CDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in May?

In Porter Heights, 86°F (30°C) is the average high-temperature and 67.8°F (19.9°C) is the average low-temperature during May. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in May is computed to be 96.8°F (36°C).

What is the average humidity in May?

In Porter Heights, the average relative humidity in May is 75%.

What is the rainiest month in Porter Heights?

May is the month with the most rainfall. Rain falls for 13.6 days and accumulates 2.83" (72mm) of precipitation.

How many days does it rain in May?

In Porter Heights, in May, during 13.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow?

January through November are months without snowfall in Porter Heights.

What is the average length of the day in May?

In May, the average day length is 13h and 41min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:37 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:17 pm CDT.

How many hours of sunshine does Porter Heights have in May?

In Porter Heights, the average sunshine duration in May is 9.1h.

What is the UV index intensity in May?

In Porter Heights, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to 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
Porter Heights, TX

Average temperature in May - Porter Heights, TX
  • Average high temperature in May: 86°F

The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (60.1°F).

  • Average low temperature in May: 67.8°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).

Average pressure in May
Porter Heights, TX

Average pressure in May - Porter Heights, TX
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Porter Heights, TX

Average wind speed in May - Porter Heights, TX
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is September (5.2mph).

Average humidity in May
Porter Heights, TX

Average humidity in May - Porter Heights, TX
  • Average humidity in May: 75%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (71%).

Average rainfall in May
Porter Heights, TX

Average rainfall in May - Porter Heights, TX
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is November (0.98").

Average rainfall days in May
Porter Heights, TX

Average rainfall days in May - Porter Heights, TX
  • Average rainfall days in May: 13.6 days

The month with the highest number of rainy days is September (17.2 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in May
Porter Heights, TX

Average snowfall in May - Porter Heights, TX
  • Average snowfall in May: 0"

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Porter Heights, TX

Average snowfall days in May - Porter Heights, TX
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Porter Heights, TX

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

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 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in May
Porter Heights, TX

Average sunshine days in May - Porter Heights, TX
  • Average sunshine days in May: 14.7 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is September (10.3 days).

Average UV index in May
Porter Heights, TX

Average UV index in May - Porter Heights, 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
Porter Heights, TX

Average cloud cover in May - Porter Heights, TX
  • Average cloud cover in May: 41

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Porter Heights, TX

Average visibility in May - Porter Heights, TX
  • Average visibility in May: 5mi

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

Porter Heights, Texas, USA

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