July weather forecast
Saint Thomas, MO

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Weather in July

July, like June, is another hot summer month in Saint Thomas, Missouri, with temperature in the range of an average high of 89.2°F (31.8°C) and an average low of 67.8°F (19.9°C).

Temperature

July is the month when Saint Thomas experiences its warmest temperatures, averaging a high of 89.2°F (31.8°C) and a low of 67.8°F (19.9°C).

Heat index

The heat index value for July is evaluated at a blistering 105.8°F (41°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In July, the average relative humidity is 74%.

Rainfall

In Saint Thomas, in July, it is raining for 9.6 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 93.7 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

In Saint Thomas, Missouri, snow does not fall in April through October.

Daylight

The average length of the day in July is 14h and 32min.
On the first day of July, sunrise is at 5:49 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:19 pm CDT.

Sunshine

In Saint Thomas, the average sunshine in July is 10.4h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

The warmest month is July, with an average high-temperature of 89.2°F (31.8°C) and an average low-temperature of 67.8°F (19.9°C).

How hot is it in July?

July temperatures vary between a high-temperature of 89.2°F (31.8°C) and a low-temperature of 67.8°F (19.9°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 105.8°F (41°C).

What is the average humidity in July?

The average relative humidity in July is 74%.

How much does it rain in July?

In Saint Thomas, in July, it is raining for 9.6 days, with typically 0.87" (22mm) of accumulated precipitation.

When it does not snow?

In Saint Thomas, snow does not fall in April through October.

What is the average length of the day in July?

The average day length in July is 14h and 32min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:49 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:19 pm CDT.

How long on average sun shines in July?

The average sunshine duration in July is 10.4h.

What is the month with the highest UV index?

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

How high is the UV index in July?

In Saint Thomas, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Saint Thomas, MO

Average temperature in July - Saint Thomas, MO
  • 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 (38.5°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 (24.3°F).

Average pressure in July
Saint Thomas, MO

Average pressure in July - Saint Thomas, 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
Saint Thomas, MO

Average wind speed in July - Saint Thomas, MO
  • Average wind speed in July: 5.8mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in July
Saint Thomas, MO

Average humidity in July - Saint Thomas, MO
  • Average humidity in July: 74%

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

Average rainfall in July
Saint Thomas, MO

Average rainfall in July - Saint Thomas, MO
  • Average rainfall in July: 0.87"

The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is November (0.47").

Average rainfall days in July
Saint Thomas, MO

Average rainfall days in July - Saint Thomas, MO
  • Average rainfall days in July: 9.6 days

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (4 days).

Average snowfall in July
Saint Thomas, MO

Average snowfall in July - Saint Thomas, MO
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Saint Thomas, MO

Average snowfall days in July - Saint Thomas, MO
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Saint Thomas, MO

Average daylight in July / Average sunshine in July - Saint Thomas, 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 30min).

  • 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 48min).

Average sunshine days in July
Saint Thomas, MO

Average sunshine days in July - Saint Thomas, MO
  • Average sunshine days in July: 17.7 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (16.7 days).

Average UV index in July
Saint Thomas, MO

Average UV index in July - Saint Thomas, MO
  • 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, November and December (UV index 2).

Average cloud cover in July
Saint Thomas, MO

Average cloud cover in July - Saint Thomas, 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 August (Cloud cover 28).

Average visibility in July
Saint Thomas, MO

Average visibility in July - Saint Thomas, 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).

Saint Thomas, Missouri, USA

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