July weather forecast
Saint Joseph, MO

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Weather in July

July is typically the hottest month of the year in Saint Joseph, with temperatures peaking and rainfall patterns changing. The climate in July is noticeably warmer than that of June or the ensuing August. The weather records an 86°F (30°C) temperature high which is the maximum for the year. Residents and visitors can expect unbearably hot days, often necessitating cooling devices for comfort. The pervasive weather in July, therefore, is characterized by high temperatures, transforming Saint Joseph into a summer hotspot.

Temperature

July is the warmest month, with an average high-temperature of 86°F (30°C) and an average low-temperature of 67.6°F (19.8°C).

Heat index

July's heat index is computed to be a very hot 98.6°F (37°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 essentially critical for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In July, the average relative humidity is 78%.

Rainfall

In Saint Joseph, during July, the rain falls for 14.4 days and regularly aggregates up to 3.11" (79mm) of precipitation. Throughout the year, there are 133.5 rainfall days, and 27.28" (693mm) of precipitation is accumulated.

Snowfall

In Saint Joseph, snow does not fall in June through September.

Daylight

The average length of the day in July is 14h and 40min.
On the first day of July, sunrise is at 5:55 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:33 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 10.4h of sunshine.

UV index

June 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 health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Saint Joseph?

With its average high temperature of 86°F (30°C) and a low of 67.6°F (19.8°C), July is regarded as the warmest month.

Is it hot during July?

The high-temperature, in July, in Saint Joseph, is 86°F (30°C), while the low-temperature averages to 67.6°F (19.8°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 98.6°F (37°C).

What is the average humidity in July?

In July, the average relative humidity is 78%.

How many days does it rain in July?

In Saint Joseph, during July, the rain falls for 14.4 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow?

In Saint Joseph, snow does not fall in June through September.

How many hours of daylight does Saint Joseph have in July?

In Saint Joseph, the average day length in July is 14h and 40min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:55 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:33 pm CDT.

What month has the most sunshine?

With an average of 10.4h of sunshine, July has the most sunshine of the year in Saint Joseph.

How long on average sun shines in July?

The average sunshine duration in July is 10.4h.

What are the months with the highest UV index?

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Saint Joseph, MO

Average temperature in July - Saint Joseph, MO
  • Average high temperature in July: 86°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (34.7°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 (20.3°F).

Average pressure in July
Saint Joseph, MO

Average pressure in July - Saint Joseph, MO
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in July
Saint Joseph, MO

Average wind speed in July - Saint Joseph, MO
  • Average wind speed in July: 6.4mph

The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).

Average humidity in July
Saint Joseph, MO

Average humidity in July - Saint Joseph, MO
  • Average humidity in July: 78%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in July
Saint Joseph, MO

Average rainfall in July - Saint Joseph, MO
  • Average rainfall in July: 3.11"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (0.87").

Average rainfall days in July
Saint Joseph, MO

Average rainfall days in July - Saint Joseph, MO
  • Average rainfall days in July: 14.4 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in July
Saint Joseph, MO

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

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

Average snowfall days in July
Saint Joseph, MO

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

The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Saint Joseph, MO
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in July
Saint Joseph, MO

Average sunshine days in July - Saint Joseph, MO
  • Average sunshine days in July: 13 days

The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in July
Saint Joseph, MO

Average UV index in July - Saint Joseph, 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 Joseph, MO

Average cloud cover in July - Saint Joseph, MO
  • Average cloud cover in July: 26

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in July
Saint Joseph, MO

Average visibility in July - Saint Joseph, 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 Joseph, Missouri, USA

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