June weather forecast and climate
Katy, TX

Weather in June

June, the first month of the summer, in Katy, is a tropical month, with temperature in the range of an average low of 73.8°F (23.2°C) and an average high of 91°F (32.8°C).

Temperature

In Katy, the average high-temperature slightly increases, from a warm 85.5°F (29.7°C) in May, to a hot 91°F (32.8°C). The average low-temperature, in Katy, is 73.8°F (23.2°C).

Heat index

The average heat index is computed to be a life-threatening hot 113.9°F (45.5°C). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like clothing, differences in body mass, height, and shape, metabolic differences, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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 prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in June is 76%.

Rainfall

In Katy, during 17.9 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 169 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

Snowfall

In Katy snow does not fall in February through November.

Daylight

The month with the longest days is June, with an average of 14h of daylight.

Sunshine

In Katy, the average sunshine in June is 9.8h.

UV index

Months with the highest UV index in Katy are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays for the average person.
Note: In June, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in June in Katy?

The average high-temperature, in June, in Katy, is 91°F (32.8°C), while the average low-temperature is 73.8°F (23.2°C). In June, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 113.9°F (45.5°C).

What is the average humidity in June in Katy?

The average relative humidity in June in Katy, Texas, is 76%.

How much does it rain in Katy in June?

In June, in Katy, the rain falls for 17.9 days. Throughout June, 3.07" (78mm) of precipitation is accumulated.

When it does not snow in Katy?

February through November are months without snowfall in Katy, Texas.

When are the longest days in Katy?

The month with the longest days in Katy is June, with an average of 14h of daylight.

How many hours of daylight does Katy have in June?

In June, the average length of the day is 14h.

How many hours of sunshine does Katy have in June?

The average sunshine in June in Katy, Texas, is 9.8h.

When is the highest UV index in Katy?

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

What is the UV index reading in June in Katy?

In June, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in June
Katy, TX

Average temperature in June - Katy, TX
  • Average high temperature in June: 91°F

The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (61°F).

  • Average low temperature in June: 73.8°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 (45°F).

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Average pressure in June
Katy, TX

Average pressure in June - Katy, TX
  • Average pressure in June: 29.93"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in June
Katy, TX

Average wind speed in June - Katy, TX
  • Average wind speed in June: 6.5mph

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).

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Average humidity in June
Katy, TX

Average humidity in June - Katy, TX
  • Average humidity in June: 76%

Months with the highest relative humidity are February and March (78%).
Months with the lowest relative humidity are August and October (71%).

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Average rainfall in June
Katy, TX

Average rainfall in June - Katy, TX
  • Average rainfall in June: 3.07"

The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is February (1.42").

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Average rainfall days in June
Katy, TX

Average rainfall days in June - Katy, TX
  • Average rainfall days in June: 17.9 days

The month with the highest number of rainy days is September (18.8 days).
The month with the least rainy days is January (10.5 days).

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Average snowfall in June
Katy, TX

Average snowfall in June - Katy, TX
  • Average snowfall in June: 0"

The month with the highest snowfall is December (0.12").
Months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in June
Katy, TX

Average snowfall days in June - Katy, TX
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (0.4 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in June /
Average sunshine in June
Katy, TX

Average daylight in June / Average sunshine in June - Katy, TX
  • Average daylight in June: 14h

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

  • Average sunshine in June: 9.8h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is December (Average sunshine: 4.9h).

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Average sunshine days in June
Katy, TX

Average sunshine days in June - Katy, TX
  • Average sunshine days in June: 10.1 days

The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is September (8.9 days).

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Average UV index in June
Katy, TX

Average UV index in June - Katy, TX
  • Average UV index in June: 7

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).

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Average cloud cover in June
Katy, TX

Average cloud cover in June - Katy, TX
  • Average cloud cover in June: 35

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in June
Katy, TX

Average visibility in June - Katy, TX
  • Average visibility in June: 6mi

Months with the highest visibility are January, February, March, June, August, September, October, November and December (6mi).
Months with the lowest visibility are April, May and July (5mi).

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