May weather forecastHighland Park, TX
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Highland Park, Texas, with an average temperature ranging between min 64.8°F (18.2°C) and max 82°F (27.8°C).Temperature
May sees a marginal temperature increase, moving from a warm 75°F (23.9°C) in April to a still moderately hot 82°F (27.8°C). Throughout May, an average nighttime temperature of 64.8°F (18.2°C) is experienced.Heat index
In May, the heat index is appraised at a hot 87.8°F (31°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
May is the most humid month, with an average relative humidity of 72%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.8 days and typically aggregates up to 4.13" (105mm) of precipitation.Snowfall
March through October are months without snowfall.Daylight
In May, the average length of the day in Highland Park, Texas, is 13h and 52min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:09 pm. On the last day of May, sunrise is at 6:19 am and sunset at 8:30 pm CDT.
Sunshine
The average sunshine in May is 8.9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 7 in May transforms into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Highland Park, TX
- Average high temperature in May: 82°F
The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in May: 64.8°F
The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in May
Highland Park, TX
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Highland Park, TX
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in May
Highland Park, TX
- Average humidity in May: 72%
The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (55%).
Average rainfall in May
Highland Park, TX
- Average rainfall in May: 4.13"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in May
Highland Park, TX
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in May
Highland Park, TX
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in May
Highland Park, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Highland Park, TX
- Average daylight in May: 13h and 54min
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: 8h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in May
Highland Park, TX
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in May
Highland Park, TX
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Highland Park, TX
- Average cloud cover in May: 35
The months with the most cloud cover are February and March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in May
Highland Park, 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).





