July weather forecast
Union Center, SD

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Weather in July

July, the same as June, is another warm summer month in Union Center, South Dakota, with an average temperature varying between 84.7°F (29.3°C) and 62.4°F (16.9°C).

Temperature

July, on average, is the warmest month, registering a high temperature of 84.7°F (29.3°C) and a low of 62.4°F (16.9°C).

Heat index

Throughout July, the heat index is calculated to be a hot 86°F (30°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In Union Center, the average relative humidity in July is 50%.

Rainfall

In July, the rain falls for 13.4 days. Throughout July, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 126.3 rainfall days, and 16.77" (426mm) of precipitation is accumulated.

Snowfall

June through August are months without snowfall in Union Center.

Daylight

The average length of the day in July is 15h and 9min.
On the first day of the month, sunrise is at 5:10 am and sunset at 8:39 pm. On the last day of July, sunrise is at 5:37 am and sunset at 8:16 pm MDT.

Sunshine

The average sunshine in July is 11.6h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 during July translates into the following guidance:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

Union Center records the warmest temperatures in July, averaging a high of 84.7°F (29.3°C) and a low of 62.4°F (16.9°C).

How hot is it in July?

The average high-temperature and low-temperature during July are 84.7°F (29.3°C) and 62.4°F (16.9°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the average humidity in July?

The average relative humidity in July in Union Center is 50%.

How much does it rain in July?

In Union Center, in July, it is raining for 13.4 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow?

In Union Center, snow does not fall in June through August.

What is the average length of the day in July?

In July, the average day length in Union Center is 15h and 9min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:10 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:16 pm MDT.

How long on average sun shines in July?

In July, the average sunshine duration is 11.6h.

What is the month with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index reading in July?

In July, the average daily maximum UV index in Union Center is 6. A UV Index value of 6 to 7 symbolizes a high health risk from 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 July
Union Center, SD

Average temperature in July - Union Center, SD
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (32.2°F).

  • Average low temperature in July: 62.4°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).

Average pressure in July
Union Center, SD

Average pressure in July - Union Center, SD
  • Average pressure in July: 29.89"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in July
Union Center, SD

Average wind speed in July - Union Center, SD
  • Average wind speed in July: 8.3mph

The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).

Average humidity in July
Union Center, SD

Average humidity in July - Union Center, SD
  • Average humidity in July: 50%

The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are August and September (49%).

Average rainfall in July
Union Center, SD

Average rainfall in July - Union Center, SD
  • Average rainfall in July: 1.89"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in July
Union Center, SD

Average rainfall days in July - Union Center, SD
  • Average rainfall days in July: 13.4 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (5.8 days).

Average snowfall in July
Union Center, SD

Average snowfall in July - Union Center, SD
  • Average snowfall in July: 0"

The month with the highest snowfall is April (8.23").
The months with the least snowfall are June, July and August (0").

Average snowfall days in July
Union Center, SD

Average snowfall days in July - Union Center, SD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Union Center, SD

Average daylight in July / Average sunshine in July - Union Center, SD
  • Average daylight in July: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in July: 11h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).

Average sunshine days in July
Union Center, SD

Average sunshine days in July - Union Center, SD
  • Average sunshine days in July: 13.3 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (9.4 days).

Average UV index in July
Union Center, SD

Average UV index in July - Union Center, SD
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
Union Center, SD

Average cloud cover in July - Union Center, SD
  • Average cloud cover in July: 18

The months with the most cloud cover are February and April (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in July
Union Center, SD

Average visibility in July - Union Center, SD
  • Average visibility in July: 6mi

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

Union Center, South Dakota, USA

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