July weather forecast
Fort Thompson, SD

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Weather in July

July is a tropical summer month in Fort Thompson, South Dakota, with an average temperature fluctuating between 66.2°F (19°C) and 88°F (31.1°C).

Temperature

Fort Thompson registers the highest average temperatures during the month of July, with peaks of 88°F (31.1°C) and lows of 66.2°F (19°C).

Heat index

For most parts of July, the heat index is appraised at a torrid 95°F (35°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in July is 60%.

Rainfall

In July, in Fort Thompson, the rain falls for 11.8 days. Throughout July, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 107.6 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

In Fort Thompson, snow does not fall in May through September.

Daylight

In July, the average length of the day is 15h and 6min.
On the first day of July, sunrise is at 5:58 am and sunset at 9:24 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 9:02 pm CDT.

Sunshine

With an average of 11.4h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Fort Thompson. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

July temperatures tend to peak at an average high of 88°F (31.1°C) and dip to a low of 66.2°F (19°C).

Is it hot during July?

In July, in Fort Thompson, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 66.2°F (19°C). In July, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is appraised at 95°F (35°C).

What is the average humidity in July?

The average relative humidity in July is 60%.

How much does it rain in July?

In Fort Thompson, in July, it is raining for 11.8 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Fort Thompson have in July?

In July, the average day length is 15h and 6min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:58 am and sunset at 9:24 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 9:02 pm CDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11.4h of sunshine.

How many hours of sunshine does Fort Thompson have in July?

In Fort Thompson, the average sunshine duration in July is 11.4h.

When is the highest UV index?

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

How high is the UV index in July?

In Fort Thompson, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk 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 July
Fort Thompson, SD

Average temperature in July - Fort Thompson, SD
  • Average high temperature in July: 88°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in July: 66.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

Average pressure in July
Fort Thompson, SD

Average pressure in July - Fort Thompson, SD
  • Average pressure in July: 29.91"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in July
Fort Thompson, SD

Average wind speed in July - Fort Thompson, SD
  • Average wind speed in July: 9.2mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).

Average humidity in July
Fort Thompson, SD

Average humidity in July - Fort Thompson, SD
  • Average humidity in July: 60%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).

Average rainfall in July
Fort Thompson, SD

Average rainfall in July - Fort Thompson, SD
  • Average rainfall in July: 2.28"

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").

Average rainfall days in July
Fort Thompson, SD

Average rainfall days in July - Fort Thompson, SD
  • Average rainfall days in July: 11.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in July
Fort Thompson, SD

Average snowfall in July - Fort Thompson, SD
  • Average snowfall in July: 0"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Fort Thompson, SD

Average snowfall days in July - Fort Thompson, SD
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Fort Thompson, SD

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in July: 11h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in July
Fort Thompson, SD

Average sunshine days in July - Fort Thompson, SD
  • Average sunshine days in July: 15.9 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).

Average UV index in July
Fort Thompson, SD

Average UV index in July - Fort Thompson, SD
  • Average UV index in July: 6

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

Average cloud cover in July
Fort Thompson, SD

Average cloud cover in July - Fort Thompson, SD
  • Average cloud cover in July: 21

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in July
Fort Thompson, SD

Average visibility in July - Fort Thompson, 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).

Fort Thompson, South Dakota, USA

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