July weather forecastEllisville, MO
July
Weather in July
July in Ellisville, Missouri, is a hot summer month, with an average temperature fluctuating between 69.3°F (20.7°C) and 88.2°F (31.2°C).Temperature
July temperatures tend to peak at an average high of 88.2°F (31.2°C) and dip to a low of 69.3°F (20.7°C).Heat index
The heat index in July is appraised at an extremely hot 104°F (40°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Consider that heat index readings are for situations in the shade and light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In Ellisville, Missouri, the average relative humidity in July is 75%.Rainfall
In July, in Ellisville, the rain falls for 15.7 days. Throughout July, 2.4" (61mm) of precipitation is accumulated. Throughout the year, in Ellisville, Missouri, there are 134.1 rainfall days, and 23.82" (605mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in July in Ellisville, Missouri, is 14h and 33min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:30 pm. On the last day of July, sunrise is at 6:03 am and sunset at 8:13 pm CDT.
Sunshine
The month with the most sunshine is July, with an average of 10.4h of sunshine.UV index
July is the month with the highest UV index in Ellisville, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In July, an average UV index of 7 transforms into the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Ellisville, MO
- Average high temperature in July: 88.2°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in July: 69.3°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in July
Ellisville, 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
Ellisville, MO
- Average wind speed in July: 5.3mph
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 (5.3mph).
Average humidity in July
Ellisville, 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 (71%).
Average rainfall in July
Ellisville, MO
- Average rainfall in July: 2.4"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in July
Ellisville, MO
- Average rainfall days in July: 15.7 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.1 days).
Average snowfall in July
Ellisville, MO
- Average snowfall in July: 0"
The month with the highest snowfall is December (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Ellisville, MO
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Ellisville, MO
- Average daylight in July: 14h and 30min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in July
Ellisville, MO
- Average sunshine days in July: 13 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in July
Ellisville, MO
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in July
Ellisville, MO
- Average cloud cover in July: 29
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in July
Ellisville, 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).





