July weather forecast
Sullivan, MO

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Weather in July

July in Sullivan, Missouri, is a hot summer month, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 88.3°F (31.3°C).

Temperature

Sullivan's warmest month, July, generally records average temperatures ranging from a high of 88.3°F (31.3°C) to a low of 67.6°F (19.8°C).

Heat index

The average heat index in July is evaluated at a blistering 104°F (40°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in July is 75%.

Rainfall

In July, in Sullivan, Missouri, the rain falls for 16.3 days. Throughout July, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Sullivan, there are 149.6 rainfall days, and 32.05" (814mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Sullivan, the average length of the day in July is 14h and 31min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:31 pm. On the last day of July, in Sullivan, sunrise is at 6:07 am and sunset at 8:14 pm CDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, the UV index of 6 transforms into the following advice:
Ward off overexposure. Defence against solar harm is crucial. 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. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Sullivan?

Sullivan, Missouri, registers the average highest temperatures during July, with peaks of 88.3°F (31.3°C) and lows of 67.6°F (19.8°C).

How hot is it in Sullivan in July?

An average high-temperature, in July, in Sullivan, is 88.3°F (31.3°C) and the average low-temperature is 67.6°F (19.8°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is evaluated at 104°F (40°C).

What is the average humidity in July in Sullivan?

The average relative humidity in July in Sullivan is 75%.

How much does it rain in Sullivan in July?

In Sullivan, in July, during 16.3 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow in Sullivan?

April through October are months without snowfall.

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

In Sullivan, the average day length in July is 14h and 31min.

When is the sunrise / sunset in July in Sullivan?

On the first day of July in Sullivan, sunrise is at 5:45 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:14 pm CDT.

What month has the most sunshine in Sullivan?

July has the most sunshine of the year in Sullivan, with an average of 10.6h of sunshine.

How many hours of sunshine does Sullivan have in July?

The average sunshine duration in July in Sullivan is 10.6h.

When is the highest UV index in Sullivan?

May 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 Sullivan?

In Sullivan, Missouri, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Sullivan, MO

Average temperature in July - Sullivan, MO
  • Average high temperature in July: 88.3°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

Average pressure in July
Sullivan, MO

Average pressure in July - Sullivan, 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).

Average wind speed in July
Sullivan, MO

Average wind speed in July - Sullivan, MO
  • Average wind speed in July: 5.4mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in July
Sullivan, MO

Average humidity in July - Sullivan, MO
  • Average humidity in July: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Sullivan, MO

Average rainfall in July - Sullivan, MO
  • Average rainfall in July: 2.83"

The wettest month (with the highest rainfall) is April (3.86").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in July
Sullivan, MO

Average rainfall days in July - Sullivan, MO
  • Average rainfall days in July: 16.3 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (7 days).

Average snowfall in July
Sullivan, MO

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

The month with the highest snowfall is January (2.68").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Sullivan, MO

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

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Sullivan, MO

Average daylight in July / Average sunshine in July - Sullivan, 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: 4h and 42min).

Average sunshine days in July
Sullivan, MO

Average sunshine days in July - Sullivan, MO
  • Average sunshine days in July: 11.9 days

The month with the most sunshine days is January (19.1 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in July
Sullivan, MO

Average UV index in July - Sullivan, 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).

Average cloud cover in July
Sullivan, MO

Average cloud cover in July - Sullivan, MO
  • Average cloud cover in July: 29

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

Average visibility in July
Sullivan, MO

Average visibility in July - Sullivan, 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).

Sullivan, Missouri, USA

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