May weather forecast
Sylvester, TX

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Weather in May

The last month of the spring, May, is a tropical month in Sylvester, Texas, with an average temperature ranging between min 64.2°F (17.9°C) and max 86.7°F (30.4°C).

Temperature

The shift into May brings a slight increase in the average high-temperature, moving from a moderately hot 79.9°F (26.6°C) in April to a tropical 86.7°F (30.4°C). Sylvester's average low-temperature for the month of May denotes a significant decline from the daily high, recording at a comfortable 64.2°F (17.9°C).

Heat index

In May, the heat index is computed to be a tropical 89.6°F (32°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Consider that heat index readings are for situations in the shade and light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In May, the average relative humidity is 52%.

Rainfall

The month with the most rainfall in Sylvester, Texas, is May, when the rain falls for 11.1 days and typically aggregates up to 2.28" (58mm) of precipitation.

Snowfall

May through October are months without snowfall in Sylvester.

Daylight

In Sylvester, Texas, the average length of the day in May is 13h and 51min.
On the first day of the month, sunrise is at 6:53 am and sunset at 8:23 pm. On the last day of May, sunrise is at 6:33 am and sunset at 8:43 pm CDT.

Sunshine

In May, the average sunshine in Sylvester, Texas, is 10.6h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Sylvester. 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 daily UV index, 7 in May, converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Sylvester in May?

The high-temperature in Sylvester, Texas, during May is 86.7°F (30.4°C) and the low-temperature is 64.2°F (17.9°C). In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 89.6°F (32°C).

What is the average humidity in May in Sylvester?

The average relative humidity in May is 52%.

What is the wettest month in Sylvester?

The month with the most rainfall in Sylvester is May, when the rain falls for 11.1 days and typically aggregates up to 2.28" (58mm) of precipitation.

How much does it rain in Sylvester in May?

In May, in Sylvester, the rain falls for 11.1 days. Throughout May, 2.28" (58mm) of precipitation is accumulated.

When it does not snow in Sylvester?

May through October are months without snowfall in Sylvester, Texas.

Does it snow in Sylvester in May?

In May, in Sylvester, Texas, it doesn't snow. April is the latest month when it typically snows.

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

In Sylvester, Texas, the average day length in May is 13h and 51min.

What time are sunrise and sunset in May in Sylvester?

In May, on the first day of the month, sunrise is at 6:53 am and sunset at 8:23 pm. On the last day of the month, in Sylvester, Texas, sunrise is at 6:33 am and sunset at 8:43 pm CDT.

How many hours of sunshine does Sylvester have in May?

The average sunshine duration in May is 10.6h.

What are the months with the highest UV index in Sylvester?

May through August, with an average maximum UV index of 7, are months with the highest UV index in Sylvester.

What is the UV index reading in May in Sylvester?

The average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high health threat 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
Sylvester, TX

Average temperature in May - Sylvester, TX
  • Average high temperature in May: 86.7°F

The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in May: 64.2°F

The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

Average pressure in May
Sylvester, TX

Average pressure in May - Sylvester, TX
  • Average pressure in May: 29.87"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Sylvester, TX

Average wind speed in May - Sylvester, TX
  • Average wind speed in May: 13mph

The windiest month (with the highest average wind speed) is April (13.8mph).
The calmest month (with the lowest average wind speed) is September (9.9mph).

Average humidity in May
Sylvester, TX

Average humidity in May - Sylvester, TX
  • Average humidity in May: 52%

The months with the highest relative humidity are September and December (55%).
The month with the lowest relative humidity is August (44%).

Average rainfall in May
Sylvester, TX

Average rainfall in May - Sylvester, TX
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and February (0.59").

Average rainfall days in May
Sylvester, TX

Average rainfall days in May - Sylvester, TX
  • Average rainfall days in May: 11.1 days

The month with the highest number of rainy days is September (11.7 days).
The month with the least rainy days is January (3.3 days).

Average snowfall in May
Sylvester, TX

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

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Sylvester, TX

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

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Sylvester, TX
  • Average daylight in May: 13h and 5min

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

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 36min).

Average sunshine days in May
Sylvester, TX

Average sunshine days in May - Sylvester, TX
  • Average sunshine days in May: 17.6 days

The month with the most sunshine days is January (26.7 days).
The month with the least sunshine days is September (16.1 days).

Average UV index in May
Sylvester, TX

Average UV index in May - Sylvester, TX
  • Average UV index in May: 7

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

Average cloud cover in May
Sylvester, TX

Average cloud cover in May - Sylvester, TX
  • Average cloud cover in May: 22

The months with the most cloud cover are March, September and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in May
Sylvester, TX

Average visibility in May - Sylvester, 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).

Sylvester, Texas, USA

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