July weather forecast
Groton, SD

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Weather in July

July, the same as June, is another warm summer month in Groton, South Dakota, with an average temperature varying between 84.7°F (29.3°C) and 63.1°F (17.3°C).

Temperature

Groton registers the highest average temperatures during the month of July, with peaks of 84.7°F (29.3°C) and lows of 63.1°F (17.3°C).

Heat index

The heat index in July is estimated at a hot 89.6°F (32°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.

Humidity

In Groton, the average relative humidity in July is 65%.

Rainfall

In Groton, in July, during 12.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Groton, during the entire year, the rain falls for 97.2 days and collects up to 18.35" (466mm) of precipitation.

Snowfall

June through September are months without snowfall in Groton.

Daylight

In July, the average length of the day is 15h and 16min.
On the first day of July, sunrise is at 5:48 am and sunset at 9:24 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 9:01 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 11.1h of sunshine.

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 radiation for the ordinary person.
Note: In July, the maximum UV index of 6 translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

July proves to be the warmest month, recording an average peak temperature of 84.7°F (29.3°C) and a minimum temperature of 63.1°F (17.3°C).

Is it hot in Groton during July?

During July, Groton experiences an average high-temperature of 84.7°F (29.3°C) and a low-temperature of 63.1°F (17.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is estimated at 89.6°F (32°C).

What is the average humidity in July?

In July, the average relative humidity is 65%.

How much does it rain in July?

In Groton, in July, during 12.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Groton have in July?

In July, the average day length is 15h and 16min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:48 am and sunset at 9:24 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 9:01 pm CDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11.1h of sunshine.

How many hours of sunshine does Groton have in July?

The average sunshine duration in July is 11.1h.

What is the month with the highest UV index?

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

How high is the UV index in July in Groton?

In Groton, 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
Groton, SD

Average temperature in July - Groton, 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 January (20.7°F).

  • Average low temperature in July: 63.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in July
Groton, SD

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

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in July
Groton, SD

Average wind speed in July - Groton, SD
  • Average wind speed in July: 8.4mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

Average humidity in July
Groton, SD

Average humidity in July - Groton, SD
  • Average humidity in July: 65%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).

Average rainfall in July
Groton, SD

Average rainfall in July - Groton, SD
  • Average rainfall in July: 2.6"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in July
Groton, SD

Average rainfall days in July - Groton, SD
  • Average rainfall days in July: 12.2 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).

Average snowfall in July
Groton, SD

Average snowfall in July - Groton, SD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Groton, SD

Average snowfall days in July - Groton, SD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Groton, SD

Average daylight in July / Average sunshine in July - Groton, SD
  • Average daylight in July: 15h and 2min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in July: 11h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in July
Groton, SD

Average sunshine days in July - Groton, SD
  • Average sunshine days in July: 16.8 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).

Average UV index in July
Groton, SD

Average UV index in July - Groton, 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 and November (UV index 1).

Average cloud cover in July
Groton, SD

Average cloud cover in July - Groton, SD
  • Average cloud cover in July: 23

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).

Average visibility in July
Groton, SD

Average visibility in July - Groton, 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).

Groton, South Dakota, USA

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