July weather forecastJefferson City, MO

July
Weather in July
July introduces itself as the zenith of the summer, drawing out the highest mercury levels. The temperature peaks to an impressive high of 89.2°F (31.8°C), marking it as the hottest month of the year. The sun dominates the skies with an extensive presence spanning over 14 hours of daylight. July's ambiance is defined by bright, sunny days infused with the typical summer warmth. July showcases the summer at its peak, bathing Jefferson City in splendid sunshine and pleasant warmth.Temperature
During the warmest month, July, temperatures average a high of 89.2°F (31.8°C) and a low of 67.8°F (19.9°C).Heat index
July's average heat index is evaluated at an extremely hot 105.8°F (41°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In Jefferson City, the average relative humidity in July is 74%.Rainfall
In Jefferson City, in July, it is raining for 9.6 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, in Jefferson City, Missouri, there are 93.7 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
In Jefferson City, snow does not fall in April through October.Daylight
In Jefferson City, Missouri, the average length of the day in July is 14h and 33min.On the first day of July, sunrise is at 5:48 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:19 pm CDT.
Sunshine
In July, the average sunshine in Jefferson City 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during July translates into the following guidance:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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 June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in July
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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
Jefferson City, 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).





