July weather forecast
Long Valley, SD

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Weather in July

July in Long Valley, South Dakota, is a hot summer month, with temperature in the range of an average low of 68.5°F (20.3°C) and an average high of 89.2°F (31.8°C).

Temperature

July is the warmest month, exhibiting average temperatures of 89.2°F (31.8°C) at the peak and 68.5°F (20.3°C) at the base.

Heat index

In July, the average heat index is evaluated at a hot 93.2°F (34°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In July, the average relative humidity is 49%.

Rainfall

In Long Valley, in July, during 12.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Long Valley, during the entire year, the rain falls for 95.3 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

In Long Valley, South Dakota, snow does not fall in June through September.

Daylight

In July, the average length of the day is 15h and 2min.
On the first day of the month, sunrise is at 5:09 am and sunset at 8:30 pm. On the last day of July, in Long Valley, sunrise is at 5:35 am and sunset at 8:09 pm MDT.

Sunshine

In July, the average sunshine is 11.6h.

UV index

With an average maximum UV index of 7, July is the month with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 in July translates into these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the warmest month in Long Valley?

July stands out as Long Valley's warmest month, with an average high-temperature of 89.2°F (31.8°C) and a low-temperature of 68.5°F (20.3°C).

How hot is it in Long Valley in July?

During July, Long Valley experiences an average high-temperature of 89.2°F (31.8°C) and a low-temperature of 68.5°F (20.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 93.2°F (34°C).

What is the average humidity in July in Long Valley?

In July, the average relative humidity in Long Valley is 49%.

How much does it rain in Long Valley in July?

In Long Valley, in July, during 12.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Long Valley?

June through September are months without snowfall in Long Valley, South Dakota.

How many hours of daylight does Long Valley have in July?

In July, the average day length in Long Valley is 15h and 2min.

When is the sunrise / sunset in July in Long Valley?

In July, on the first day of the month, sunrise is at 5:09 am and sunset at 8:30 pm. On the last day of the month, in Long Valley, sunrise is at 5:35 am and sunset at 8:09 pm MDT.

How many hours of sunshine does Long Valley have in July?

The average sunshine duration in July in Long Valley is 11.6h.

What is the month with the highest UV index in Long Valley?

With an average maximum UV index of 7, July is the month with the highest UV index in Long Valley, South Dakota.

How high is the UV index in July in Long Valley?

The average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents 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
Long Valley, SD

Average temperature in July - Long Valley, SD
  • Average high temperature in July: 89.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in July: 68.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in July
Long Valley, SD

Average pressure in July - Long Valley, SD
  • Average pressure in July: 29.9"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in July
Long Valley, SD

Average wind speed in July - Long Valley, SD
  • Average wind speed in July: 10.3mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).

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Average humidity in July
Long Valley, SD

Average humidity in July - Long Valley, SD
  • Average humidity in July: 49%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).

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Average rainfall in July
Long Valley, SD

Average rainfall in July - Long Valley, SD
  • Average rainfall in July: 1.81"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in July
Long Valley, SD

Average rainfall days in July - Long Valley, SD
  • Average rainfall days in July: 12.4 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in July
Long Valley, SD

Average snowfall in July - Long Valley, SD
  • Average snowfall in July: 0"

The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Long Valley, SD

Average snowfall days in July - Long Valley, SD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Long Valley, SD

Average daylight in July / Average sunshine in July - Long Valley, SD
  • Average daylight in July: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in July: 11h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days in July
Long Valley, SD

Average sunshine days in July - Long Valley, SD
  • Average sunshine days in July: 15.5 days

The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).

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Average UV index in July
Long Valley, SD

Average UV index in July - Long Valley, SD
  • Average UV index in July: 7

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in July
Long Valley, SD

Average cloud cover in July - Long Valley, SD
  • Average cloud cover in July: 18

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).

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Average visibility in July
Long Valley, SD

Average visibility in July - Long Valley, 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).

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Long Valley, South Dakota, USA

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