June weather forecast
Jefferson, TX

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Weather in June

June, the first month of the summer in Jefferson, is a tropical month, with temperature in the range of an average high of 92.3°F (33.5°C) and an average low of 70.5°F (21.4°C).

Temperature

As Jefferson welcomes June, the average high-temperature displays a subtle shift, adjusting from a warm 84.2°F (29°C) in May to a tropical 92.3°F (33.5°C). Jefferson documents a substantial deviation from daytime highs with a consistent low-temperature of 70.5°F (21.4°C) during June nights.

Heat index

The heat index in June is estimated at a burning hot 114.8°F (46°C). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in June is 71%.

Rainfall

In Jefferson, in June, during 13.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, in Jefferson, there are 155.6 rainfall days, and 35.79" (909mm) of precipitation is accumulated.

Snowfall

April through December are months without snowfall in Jefferson.

Daylight

June has the longest days of the year in Jefferson, with an average of 14h and 18min of daylight.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:20 pm. On the last day of June, sunrise is at 6:12 am and sunset at 8:29 pm CDT.

Sunshine

The average sunshine in June is 10.2h.

UV index

The months with the highest UV index in Jefferson are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during June translates into these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

How hot is it in Jefferson in June?

The average high-temperature, in June, in Jefferson, is 92.3°F (33.5°C), while the average low-temperature is 70.5°F (21.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in June is estimated at 114.8°F (46°C).

What is the average humidity in June in Jefferson?

In June, the average relative humidity in Jefferson is 71%.

How many days does it rain in June in Jefferson?

In Jefferson, in June, it is raining for 13.8 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Jefferson?

In Jefferson, Texas, snow does not fall in April through December.

When are the longest days in Jefferson?

The month with the longest days is June, with an average of 14h and 18min of daylight.

What is the average length of the day in June in Jefferson?

The average day length in June in Jefferson is 14h and 17min.

When are sunrise and sunset in June in Jefferson?

In June, on the first day of the month, sunrise is at 6:09 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:29 pm CDT.

How many hours of sunshine does Jefferson have in June?

In Jefferson, Texas, the average sunshine duration in June is 10.2h.

When is the highest UV index in Jefferson?

The months with the highest UV index in Jefferson are June through August, with an average maximum UV index of 7.

What is the UV index reading in June in Jefferson?

In June, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability 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 June
Jefferson, TX

Average temperature in June - Jefferson, TX
  • Average high temperature in June: 92.3°F

The warmest month (with the highest average high temperature) is July (94.8°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in June: 70.5°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in June
Jefferson, TX

Average pressure in June - Jefferson, TX
  • Average pressure in June: 29.93"Hg

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

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Average wind speed in June
Jefferson, TX

Average wind speed in June - Jefferson, TX
  • Average wind speed in June: 5.7mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in June
Jefferson, TX

Average humidity in June - Jefferson, TX
  • Average humidity in June: 71%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in June
Jefferson, TX

Average rainfall in June - Jefferson, TX
  • Average rainfall in June: 2.8"

The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in June
Jefferson, TX

Average rainfall days in June - Jefferson, TX
  • Average rainfall days in June: 13.8 days

The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is January (10.3 days).

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Average snowfall in June
Jefferson, TX

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

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in June
Jefferson, TX

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

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in June / Average sunshine in June - Jefferson, TX
  • Average daylight in June: 14h and 2min

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 June: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in June
Jefferson, TX

Average sunshine days in June - Jefferson, TX
  • Average sunshine days in June: 14.3 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in June
Jefferson, TX

Average UV index in June - Jefferson, 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).

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Average cloud cover in June
Jefferson, TX

Average cloud cover in June - Jefferson, TX
  • Average cloud cover in June: 30

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in June
Jefferson, TX

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

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

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Jefferson, Texas, USA

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