July weather forecast
Rolla, MO

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Weather in July

July is the hottest month of the year in Rolla, offering the perfect place for sun lovers. Longer, sun-drenched days continue, providing ample opportunities for residents to enjoy summer activities. While rainfall is still a possibility, the hot weather is the most prominent feature of this month. Visitors to Rolla in July should be prepared for the heat and ensure proper hydration. Indeed, temperatures in July can reach as high as 89.1°F (31.7°C), indicating the peak of Rolla's hot summer season.

Temperature

In Rolla, the highest average temperatures are observed in July, with a high of 89.1°F (31.7°C) and a low of 67.8°F (19.9°C).

Heat index

In July, the average heat index is estimated at a scorching 105.8°F (41°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. 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 particularly meaningful for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Rolla, the average relative humidity in July is 74%.

Rainfall

In Rolla, in July, during 16 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Rolla, during the entire year, the rain falls for 147.2 days and collects up to 31.02" (788mm) of precipitation.

Snowfall

In Rolla, snow does not fall in May through September.

Daylight

In Rolla, the average length of the day in July is 14h and 29min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:33 pm. On the last day of July, sunrise is at 6:10 am and sunset at 8:16 pm CDT.

Sunshine

In July, the average sunshine in Rolla is 10.4h.

UV index

The months with the highest UV index in Rolla, Missouri, are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during July leads to these instructions:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What are the warmest months in Rolla?

July tends to be the warmest month in Rolla, Missouri, with temperatures averaging a daily high of 89.1°F (31.7°C) and a low of 67.8°F (19.9°C).

How hot is it in Rolla in July?

In July, the average high-temperature and low-temperature in Rolla, Missouri, are 89.1°F (31.7°C) and 67.8°F (19.9°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 105.8°F (41°C).

What is the average humidity in July in Rolla?

In Rolla, the average relative humidity in July is 74%.

How much does it rain in Rolla in July?

In Rolla, Missouri, in July, during 16 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

When it does not snow in Rolla?

May through September are months without snowfall in Rolla, Missouri.

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

The average day length in July in Rolla is 14h and 29min.

What time are sunrise and sunset in July in Rolla?

On the first day of July in Rolla, sunrise is at 5:48 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:16 pm CDT.

How long on average sun shines in July in Rolla?

In Rolla, the average sunshine duration in July is 10.4h.

What is the month with the highest UV index in Rolla?

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

What is the UV index reading in July in Rolla?

The average daily maximum UV index in July in Rolla, Missouri, 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
Rolla, MO

Average temperature in July - Rolla, MO
  • Average high temperature in July: 89.1°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in July: 67.8°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure in July
Rolla, MO

Average pressure in July - Rolla, MO
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Rolla, MO

Average wind speed in July - Rolla, MO
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in July
Rolla, MO

Average humidity in July - Rolla, MO
  • Average humidity in July: 74%

The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in July
Rolla, MO

Average rainfall in July - Rolla, MO
  • Average rainfall in July: 3.03"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is November (1.65").

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Average rainfall days in July
Rolla, MO

Average rainfall days in July - Rolla, MO
  • Average rainfall days in July: 16 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is December (7 days).

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Average snowfall in July
Rolla, MO

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

The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Rolla, MO

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

The month with the highest number of snowfall days is January (7.4 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
Rolla, MO

Average daylight in July / Average sunshine in July - Rolla, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in July
Rolla, MO

Average sunshine days in July - Rolla, MO
  • Average sunshine days in July: 11.8 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index in July
Rolla, MO

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

The months with the highest UV index are May, June, July and August (UV index 6).
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
Rolla, MO

Average cloud cover in July - Rolla, MO
  • Average cloud cover in July: 30

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in July
Rolla, MO

Average visibility in July - Rolla, MO
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Rolla, Missouri, USA

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