May weather forecast
Waco, TX

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The high Waco Suspension Bridge crossing on the large Brazos River in the Indian Spring Park in Waco, Texas
The high Waco Suspension Bridge crossing on the large Brazos River in the Indian Spring Park in Waco, Texas

Weather in May

May marks the beginning of summer heat in Waco. The temperature is notably warmer, and the city bathes in an average of 13.8 daylight hours. Yet, it still receives a substantial amount of rain. May is characterized by warm temperatures during the day and slightly cooler evenings, symbolizing the transition from spring to summer in Waco.

Temperature

Waco's weather shows a minor temperature rise with the arrival of May, moving from a moderately hot 75.6°F (24.2°C) in April to a still warm 82.2°F (27.9°C). The average temperature during May nights is registered at an enjoyable 64.8°F (18.2°C).

Heat index

May's heat index is appraised at a tropical 87.8°F (31°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
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. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

With an average relative humidity of 76%, May is the most humid month.

Rainfall

In Waco, in May, during 14.5 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 133.5 rainfall days, and 26.65" (677mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

In May, the average length of the day is 13h and 46min.
On the first day of the month, sunrise is at 6:42 am and sunset at 8:08 pm. On the last day of May, in Waco, sunrise is at 6:24 am and sunset at 8:28 pm CDT.

Sunshine

The average sunshine in May is 8.5h.

UV index

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during May translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

An average high-temperature, in May, in Waco, is 82.2°F (27.9°C) and the average low-temperature is 64.8°F (18.2°C). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 87.8°F (31°C).

What is the most humid month?

May is the most humid month, with an average relative humidity of 76%.

What is the average humidity in May?

In Waco, the average relative humidity in May is 76%.

How much does it rain in May?

In May, the rain falls for 14.5 days. Throughout May, 3.11" (79mm) of precipitation is accumulated.

When it does not snow?

In Waco, snow does not fall in March through December.

What is the average length of the day in May?

The average day length in May is 13h and 46min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:42 am and sunset at 8:08 pm. On the last day of the month, in Waco, sunrise is at 6:24 am and sunset at 8:28 pm CDT.

How long on average sun shines in May?

In Waco, the average sunshine duration in May is 8.5h.

How high is the UV index in May?

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes 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
Waco, TX

Average temperature in May - Waco, TX
  • Average high temperature in May: 82.2°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in May: 64.8°F

The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).

Average pressure in May
Waco, TX

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Waco, TX

Average wind speed in May - Waco, TX
  • Average wind speed in May: 9.3mph

The windiest month (with the highest average wind speed) is March (10.5mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).

Average humidity in May
Waco, TX

Average humidity in May - Waco, TX
  • Average humidity in May: 76%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (57%).

Average rainfall in May
Waco, TX

Average rainfall in May - Waco, TX
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is October (3.82").
The driest month (with the least rainfall) is November (1.42").

Average rainfall days in May
Waco, TX

Average rainfall days in May - Waco, TX
  • Average rainfall days in May: 14.5 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in May
Waco, TX

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

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

Average snowfall days in May
Waco, TX

Average snowfall days in May - Waco, 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 March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in May / Average sunshine in May - Waco, TX
  • 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: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in May
Waco, TX

Average sunshine days in May - Waco, TX
  • Average sunshine days in May: 14 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is September (13.5 days).

Average UV index in May
Waco, TX

Average UV index in May - Waco, TX
  • Average UV index in May: 6

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in May
Waco, TX

Average cloud cover in May - Waco, TX
  • Average cloud cover in May: 40

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in May
Waco, TX

Average visibility in May - Waco, 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).

Waco, Texas, USA

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