June weather forecastMertens, TX
June
Weather in June
June, the first month of the summer in Mertens, is a tropical month, with an average temperature varying between 90°F (32.2°C) and 72.7°F (22.6°C).Temperature
Mertens's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's warm 81.3°F (27.4°C) to a hot 90°F (32.2°C). Nighttime temperatures in Mertens, Texas, consistently average a pleasant 72.7°F (22.6°C) during June.Heat index
June's heat index is evaluated at a blistering 105.8°F (41°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In June, the average relative humidity is 71%.Rainfall
In June, the rain falls for 12.8 days. Throughout June, 3.23" (82mm) of precipitation is accumulated. In Mertens, during the entire year, the rain falls for 146.4 days and collects up to 32.72" (831mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
With an average of 14h and 12min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 6:21 am and sunset at 8:29 pm. On the last day of June, in Mertens, Texas, sunrise is at 6:24 am and sunset at 8:37 pm CDT.
Sunshine
In Mertens, the average sunshine in June is 9.9h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In June, the maximum UV index of 7 suggests this advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Mertens, TX
- Average high temperature in June: 90°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in June: 72.7°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 (39.7°F).
Average pressure in June
Mertens, TX
- Average pressure in June: 29.91"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 June
Mertens, TX
- Average wind speed in June: 8.1mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in June
Mertens, TX
- Average humidity in June: 71%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (58%).
Average rainfall in June
Mertens, TX
- Average rainfall in June: 3.23"
The wettest month (with the highest rainfall) is October (4.57").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in June
Mertens, TX
- Average rainfall days in June: 12.8 days
The months with the highest number of rainy days are May and September (15.6 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in June
Mertens, TX
- Average snowfall in June: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in June
Mertens, TX
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in June /
Average sunshine in June
Mertens, TX
- Average daylight in June: 14h and 12min
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 June: 9h and 54min
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 24min).
Average sunshine days in June
Mertens, TX
- Average sunshine days in June: 14.3 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is September (13.2 days).
Average UV index in June
Mertens, TX
- Average UV index in June: 7
The months with the highest UV index are 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 June
Mertens, TX
- Average cloud cover in June: 28
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 June
Mertens, TX
- Average visibility in June: 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).





