Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset is marked by a subtle temperature increase, moving from an agreeable 72.7°F (22.6°C) in April to a warm 80.6°F (27°C). McLean documents a marked decrease from day to night, with an average low of 58.8°F (14.9°C) throughout May.Heat index
May's mean heat index is evaluated at 82.4°F (28°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in May is 55%.Rainfall
The month with the most rainfall is May, when the rain falls for 10.7 days and typically aggregates up to 2.56" (65mm) of precipitation.Snowfall
In McLean, snow does not fall in May through October.Daylight
In McLean, the average length of the day in May is 14h and 2min.On the first day of May, sunrise is at 6:50 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:51 pm CDT.
Sunshine
In McLean, Texas, the average sunshine in May is 10.4h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during May translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May in McLean?
What is the rainiest month?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
McLean, TX
- Average high temperature in May: 80.6°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (50°F).
- Average low temperature in May: 58.8°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in May
McLean, TX
- Average pressure in May: 29.88"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
McLean, TX
- Average wind speed in May: 12.5mph
The windiest month (with the highest average wind speed) is April (13.9mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).
Average humidity in May
McLean, TX
- Average humidity in May: 55%
The month with the highest relative humidity is September (57%).
The month with the lowest relative humidity is August (49%).
Average rainfall in May
McLean, TX
- Average rainfall in May: 2.56"
The wettest month (with the highest rainfall) is May (2.56").
The driest months (with the least rainfall) are February and November (0.59").
Average rainfall days in May
McLean, TX
- Average rainfall days in May: 10.7 days
The months with the highest number of rainy days are July and August (11.3 days).
The month with the least rainy days is January (3 days).
Average snowfall in May
McLean, TX
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
McLean, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3 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
McLean, TX
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
McLean, TX
- Average sunshine days in May: 17.3 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is September (16.4 days).
Average UV index in May
McLean, 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 2).
Average cloud cover in May
McLean, TX
- Average cloud cover in May: 24
The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in May
McLean, 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).
McLean, Texas, USA
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