July weather forecast
North Sioux City, SD

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Weather in July

The peak summer month of July in North Sioux City continues the trend of June, experiencing hot weather. July tends to be the warmest month of the year, preceding the somewhat cooler month of August. On summer's peak, the city experiences its longest days, filled with abundant sunshine. Despite high temperatures, rain doesn't hold back and showers are frequent. July, indeed, holds the year's maximum temperature record of 84°F (28.9°C).

Temperature

North Sioux City experiences its highest average temperatures in July, reaching a peak of 84°F (28.9°C) and a minimum of 64.9°F (18.3°C).

Heat index

For most parts of July, the heat index is appraised at a hot 91.4°F (33°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In July, the average relative humidity in North Sioux City is 75%.

Rainfall

In North Sioux City, in July, it is raining for 12.7 days, with typically 1.89" (48mm) of accumulated precipitation. In North Sioux City, South Dakota, during the entire year, the rain falls for 122 days and collects up to 21.61" (549mm) of precipitation.

Snowfall

In North Sioux City, snow does not fall in June through September.

Daylight

The average length of the day in July in North Sioux City, South Dakota, is 14h and 56min.
On the first day of July, sunrise is at 5:52 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:46 pm CDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index in North Sioux City. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In July, a regular UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in North Sioux City?

The temperatures in North Sioux City reach their highest averages in July, with highs of 84°F (28.9°C) and lows of 64.9°F (18.3°C).

How hot is it in North Sioux City in July?

North Sioux City in July has an average high-temperature of 84°F (28.9°C) and an average low-temperature of 64.9°F (18.3°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 91.4°F (33°C).

What is the average humidity in July in North Sioux City?

The average relative humidity in July is 75%.

How many days does it rain in July in North Sioux City?

In North Sioux City, South Dakota, in July, during 12.7 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow in North Sioux City?

In North Sioux City, South Dakota, snow does not fall in June through September.

What is the average length of the day in July in North Sioux City?

The average day length in July in North Sioux City, South Dakota, is 14h and 56min.

When are sunrise and sunset in July in North Sioux City?

On the first day of July, sunrise is at 5:52 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:46 pm CDT.

What month has the most sunshine in North Sioux City?

July has the most sunshine of the year, with an average of 10.7h of sunshine.

How many hours of sunshine does North Sioux City have in July?

In July, the average sunshine duration is 10.7h.

When is the highest UV index in North Sioux City?

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

How high is the UV index in July in North Sioux City?

In July, the average daily maximum UV index in North Sioux City, South Dakota, is 6. A UV Index 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 July
North Sioux City, SD

Average temperature in July - North Sioux City, SD
  • Average high temperature in July: 84°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

Average pressure in July
North Sioux City, SD

Average pressure in July - North Sioux City, SD
  • Average pressure in July: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in July
North Sioux City, SD

Average wind speed in July - North Sioux City, SD
  • Average wind speed in July: 7.6mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average humidity in July
North Sioux City, SD

Average humidity in July - North Sioux City, SD
  • Average humidity in July: 75%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).

Average rainfall in July
North Sioux City, SD

Average rainfall in July - North Sioux City, SD
  • Average rainfall in July: 1.89"

The wettest months (with the highest rainfall) are May and June (3.03").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in July
North Sioux City, SD

Average rainfall days in July - North Sioux City, SD
  • Average rainfall days in July: 12.7 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in July
North Sioux City, SD

Average snowfall in July - North Sioux City, SD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
North Sioux City, SD

Average snowfall days in July - North Sioux City, SD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
North Sioux City, SD

Average daylight in July / Average sunshine in July - North Sioux City, SD
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in July
North Sioux City, SD

Average sunshine days in July - North Sioux City, SD
  • Average sunshine days in July: 15 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in July
North Sioux City, SD

Average UV index in July - North Sioux City, SD
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in July
North Sioux City, SD

Average cloud cover in July - North Sioux City, SD
  • Average cloud cover in July: 26

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in July
North Sioux City, SD

Average visibility in July - North Sioux City, SD
  • Average visibility in July: 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).

North Sioux City, South Dakota, USA

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