July weather forecast
Rockville, MO

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Weather in July

July in Rockville, Missouri, is a hot summer month, with an average temperature varying between 87.4°F (30.8°C) and 68.9°F (20.5°C).

Temperature

Rockville's temperature records reveal July as the warmest month, marked by average highs of 87.4°F (30.8°C) and lows of 68.9°F (20.5°C).

Heat index

The heat index in July is calculated to be a sweltering 102.2°F (39°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Rockville, the average relative humidity in July is 76%.

Rainfall

In Rockville, during July, the rain falls for 14.8 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Rockville, during the entire year, the rain falls for 130.6 days and collects up to 25.43" (646mm) of precipitation.

Snowfall

In Rockville, snow does not fall in April, June through September.

Daylight

In Rockville, the average length of the day in July is 14h and 30min.
On the first day of July, sunrise is at 5:57 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:26 pm CDT.

Sunshine

The month with the most sunshine in Rockville, Missouri, is July, with an average of 10.6h of sunshine.

UV index

In July, the average daily maximum UV index in Rockville is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What is the warmest month in Rockville?

In Rockville, July registers the highest temperatures, averaging 87.4°F (30.8°C) at the peak and 68.9°F (20.5°C) at the lowest.

How hot is it in Rockville in July?

In Rockville, 87.4°F (30.8°C) is the average high-temperature and 68.9°F (20.5°C) is the average low-temperature during July. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is calculated to be 102.2°F (39°C).

What is the average humidity in July in Rockville?

The average relative humidity in July in Rockville, Missouri, is 76%.

How much does it rain in Rockville in July?

In July, in Rockville, the rain falls for 14.8 days. Throughout July, 2.6" (66mm) of precipitation is accumulated.

When it does not snow in Rockville?

In Rockville, Missouri, snow does not fall in April, June through September.

What is the average length of the day in July in Rockville?

The average day length in July in Rockville is 14h and 30min.

What time are sunrise and sunset in July in Rockville?

On the first day of July, sunrise is at 5:57 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:26 pm CDT.

What month has the most sunshine in Rockville?

With an average of 10.6h of sunshine, July has the most sunshine of the year in Rockville, Missouri.

How long on average sun shines in July in Rockville?

In July, the average sunshine duration is 10.6h.

How high is the UV index in July in Rockville?

The average daily maximum UV index in July in Rockville is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's 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
Rockville, MO

Average temperature in July - Rockville, MO
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in July: 68.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in July
Rockville, MO

Average pressure in July - Rockville, MO
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
Rockville, MO

Average wind speed in July - Rockville, MO
  • Average wind speed in July: 6.7mph

The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in July
Rockville, MO

Average humidity in July - Rockville, MO
  • Average humidity in July: 76%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Rockville, MO

Average rainfall in July - Rockville, MO
  • Average rainfall in July: 2.6"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in July
Rockville, MO

Average rainfall days in July - Rockville, MO
  • Average rainfall days in July: 14.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5 days).

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Average snowfall in July
Rockville, MO

Average snowfall in July - Rockville, MO
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, June, July, August and September (0").

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Average snowfall days in July
Rockville, MO

Average snowfall days in July - Rockville, MO
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (4 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
Rockville, MO

Average daylight in July / Average sunshine in July - Rockville, MO
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days in July
Rockville, MO

Average sunshine days in July - Rockville, MO
  • Average sunshine days in July: 13.3 days

The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is May (12.2 days).

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Average UV index in July
Rockville, MO

Average UV index in July - Rockville, MO
  • Average UV index in July: 6

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Rockville, MO

Average cloud cover in July - Rockville, MO
  • Average cloud cover in July: 25

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in July
Rockville, MO

Average visibility in July - Rockville, MO
  • 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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Rockville, Missouri, USA

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