July weather forecastMartinsville, IL
July
Weather in July
July, like June, in Martinsville, Illinois, is another warm summer month, with an average temperature fluctuating between 66.4°F (19.1°C) and 82.9°F (28.3°C).Temperature
The highest temperatures are recorded in July, with averages reaching a high of 82.9°F (28.3°C) and a low of 66.4°F (19.1°C).Heat index
During July, the heat index is estimated at a hot 91.4°F (33°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
July is the most humid month in Martinsville, with an average relative humidity of 83%.Rainfall
In Martinsville, in July, it is raining for 12.5 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, there are 115.9 rainfall days, and 11.26" (286mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Martinsville.Daylight
The average length of the day in July in Martinsville is 14h and 37min.On the first day of July, sunrise is at 5:28 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:04 pm CDT.
Sunshine
The average sunshine in July is 10.1h.UV index
The months with the highest UV index in Martinsville are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In July, the maximum UV index of 6 suggests this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Martinsville, IL
- Average high temperature in July: 82.9°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in July: 66.4°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in July
Martinsville, IL
- Average pressure in July: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Martinsville, IL
- Average wind speed in July: 6.1mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in July
Martinsville, IL
- Average humidity in July: 83%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Martinsville, IL
- Average rainfall in July: 1.22"
The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in July
Martinsville, IL
- Average rainfall days in July: 12.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).
Average snowfall in July
Martinsville, IL
- Average snowfall in July: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Martinsville, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Martinsville, IL
- Average daylight in July: 14h and 36min
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 30min).
- Average sunshine in July: 10h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in July
Martinsville, IL
- Average sunshine days in July: 14.3 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in July
Martinsville, IL
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Martinsville, IL
- Average cloud cover in July: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in July
Martinsville, IL
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
