July weather forecastJamestown, MO
July
Weather in July
July in Jamestown, Missouri, is a tropical summer month, with an average temperature varying between 68°F (20°C) and 87.6°F (30.9°C).Temperature
July is the month when Jamestown experiences its warmest temperatures, averaging a high of 87.6°F (30.9°C) and a low of 68°F (20°C).Heat index
July's heat index is appraised at a fiery hot 102.2°F (39°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
The average relative humidity in July in Jamestown is 76%.Rainfall
In Jamestown, in July, it is raining for 10.2 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 95.5 rainfall days, and 8.62" (219mm) of precipitation is accumulated.Snowfall
In Jamestown, snow does not fall in April through September.Daylight
The average length of the day in July in Jamestown is 14h and 34min.On the first day of July in Jamestown, sunrise is at 5:49 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:21 pm CDT.
Sunshine
June and July, with an average of 10.4h of sunshine, are months with the most sunshine in Jamestown.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: During July, 6 as the daily maximum UV index converts into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Jamestown, MO
- Average high temperature in July: 87.6°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in July: 68°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in July
Jamestown, 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 (29.91"Hg).
Average wind speed in July
Jamestown, MO
- Average wind speed in July: 6.1mph
The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in July
Jamestown, MO
- Average humidity in July: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Jamestown, MO
- Average rainfall in July: 0.98"
The wettest month (with the highest rainfall) is May (1.3").
The driest months (with the least rainfall) are January and February (0.43").
Average rainfall days in July
Jamestown, MO
- Average rainfall days in July: 10.2 days
The months with the highest number of rainy days are April and May (11.3 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in July
Jamestown, MO
- Average snowfall in July: 0"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in July
Jamestown, MO
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (5.3 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
Jamestown, MO
- Average daylight in July: 14h and 36min
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 months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).
Average sunshine days in July
Jamestown, MO
- Average sunshine days in July: 16.6 days
The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is May (15.6 days).
Average UV index in July
Jamestown, 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
Jamestown, MO
- Average cloud cover in July: 29
The months with the most cloud cover are January, February and March (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in July
Jamestown, 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).
