Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Temperature records mark July as the warmest month, with highs averaging 86.7°F (30.4°C) and lows at 68.9°F (20.5°C).Heat index
For most parts of July, the heat index is calculated to be a sweltering 100.4°F (38°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
The average relative humidity in July is 76%.Rainfall
In Saint Charles, in July, it is raining for 16.3 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Saint Charles, there are 141.9 rainfall days, and 27.68" (703mm) of precipitation is accumulated.Snowfall
In Saint Charles, Missouri, snow does not fall in April through October.Daylight
The average length of the day in July is 14h and 34min.On the first day of July in Saint Charles, sunrise is at 5:41 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:13 pm CDT.
Sunshine
With an average of 10.6h of sunshine, July has the most sunshine of the year in Saint Charles, Missouri.UV index
The months with the highest UV index in Saint Charles 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 ordinary individuals.Note: The maximum UV index, 6 during July, leads to the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What are the warmest months in Saint Charles?
Is it hot in Saint Charles during July?
What is the average humidity in July in Saint Charles?
How many days does it rain in July in Saint Charles?
When it does not snow in Saint Charles?
What is the average length of the day in July in Saint Charles?
When is the sunrise / sunset in July in Saint Charles?
What month has the most sunshine in Saint Charles?
How many hours of sunshine does Saint Charles have in July?
When is the highest UV index in Saint Charles?
What is the UV index intensity in July in Saint Charles?
Average temperature in July
Saint Charles, MO
- Average high temperature in July: 86.7°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°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 (24.3°F).
Average pressure in July
Saint Charles, 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 Charles, MO
- Average wind speed in July: 5.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in July
Saint Charles, MO
- Average humidity in July: 76%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in July
Saint Charles, MO
- Average rainfall in July: 2.87"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in July
Saint Charles, MO
- Average rainfall days in July: 16.3 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are February and December (7.3 days).
Average snowfall in July
Saint Charles, MO
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Saint Charles, MO
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.8 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 Charles, MO
- Average daylight in July: 14h and 4min
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 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 36min).
Average sunshine days in July
Saint Charles, MO
- Average sunshine days in July: 11.4 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in July
Saint Charles, 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 and December (UV index 2).
Average cloud cover in July
Saint Charles, MO
- Average cloud cover in July: 28
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in July
Saint Charles, 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 Charles, Missouri, USA
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