June weather forecast
Williams, SC

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Weather in June

June, the first month of the summer in Williams, is a hot month, with an average temperature fluctuating between 89.1°F (31.7°C) and 71.2°F (21.8°C).

Temperature

The shift from May to June sees a slight increase in the average high-temperature, transitioning from a moderately hot 82.8°F (28.2°C) to a tropical 89.1°F (31.7°C). Nighttime temperatures in June average to a pleasant 71.2°F (21.8°C).

Heat index

In June, the heat index is estimated at a blistering 105.8°F (41°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in June is 75%.

Rainfall

In Williams, in June, during 17.2 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 149.7 rainfall days, and 21.5" (546mm) of precipitation is accumulated.

Snowfall

In Williams, snow does not fall in March through December.

Daylight

With an average of 14h and 18min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 6:15 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:36 pm EDT.

Sunshine

In Williams, the average sunshine in June is 10.7h.

UV index

The months with the highest UV index are June 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 the ordinary person.
Note: A maximum high UV index of 7 in June translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during June?

In June, in Williams, the average high-temperature is 89.1°F (31.7°C), and the average low-temperature is 71.2°F (21.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in June is estimated at 105.8°F (41°C).

What is the average humidity in June?

In Williams, the average relative humidity in June is 75%.

How many days does it rain in June?

In Williams, during June, the rain falls for 17.2 days and regularly aggregates up to 2.56" (65mm) of precipitation.

When it does not snow?

March through December are months without snowfall.

When are the longest days?

With an average of 14h and 18min of daylight, June has the longest days of the year.

How many hours of daylight does Williams have in June?

In June, the average day length in Williams is 14h and 18min.

When is the sunrise / sunset in June?

On the first day of June, sunrise is at 6:15 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:36 pm EDT.

How long on average sun shines in June?

In June, the average sunshine duration is 10.7h.

What is the month with the highest UV index?

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

What is the UV index reading in June?

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

Average temperature in June - Williams, SC
  • Average high temperature in June: 89.1°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in June: 71.2°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

Average pressure in June
Williams, SC

Average pressure in June - Williams, SC
  • Average pressure in June: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in June
Williams, SC

Average wind speed in June - Williams, SC
  • Average wind speed in June: 5.4mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in June
Williams, SC

Average humidity in June - Williams, SC
  • Average humidity in June: 75%

The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January, March and November (72%).

Average rainfall in June
Williams, SC

Average rainfall in June - Williams, SC
  • Average rainfall in June: 2.56"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is November (0.75").

Average rainfall days in June
Williams, SC

Average rainfall days in June - Williams, SC
  • Average rainfall days in June: 17.2 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (6.2 days).

Average snowfall in June
Williams, SC

Average snowfall in June - Williams, SC
  • Average snowfall in June: 0"

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

Average snowfall days in June
Williams, SC

Average snowfall days in June - Williams, SC
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (0.4 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
Williams, SC

Average daylight in June / Average sunshine in June - Williams, SC
  • 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 4min

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 30min).

Average sunshine days in June
Williams, SC

Average sunshine days in June - Williams, SC
  • Average sunshine days in June: 10 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (6.9 days).

Average UV index in June
Williams, SC

Average UV index in June - Williams, SC
  • 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
Williams, SC

Average cloud cover in June - Williams, SC
  • Average cloud cover in June: 30

The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 29).

Average visibility in June
Williams, SC

Average visibility in June - Williams, SC
  • Average visibility in June: 6mi

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

Williams, South Carolina, USA

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