July weather forecastPortsmouth, OH
July
Weather in July
July in Portsmouth, Ohio, is a tropical summer month, with an average temperature fluctuating between 86°F (30°C) and 64°F (17.8°C).Temperature
July, characterized by an average high temperature of 86°F (30°C) and a low temperature of 64°F (17.8°C), is generally the warmest month.Heat index
During July, the heat index is evaluated at a sweltering 98.6°F (37°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Data suggests that the heat index is set for environments in shade and with a light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In Portsmouth, the average relative humidity in July is 76%.Rainfall
In Portsmouth, during July, the rain falls for 16.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, in Portsmouth, there are 170.4 rainfall days, and 31.02" (788mm) of precipitation is accumulated.Snowfall
In Portsmouth, snow does not fall in May through September.Daylight
In July, the average length of the day is 14h and 34min.On the first day of the month, sunrise is at 6:11 am and sunset at 9:00 pm. On the last day of July, sunrise is at 6:33 am and sunset at 8:43 pm EDT.
Sunshine
In July, the average sunshine is 10h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In July, an average UV index of 6 transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Portsmouth, OH
- Average high temperature in July: 86°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in July: 64°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in July
Portsmouth, OH
- Average pressure in July: 29.99"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in July
Portsmouth, OH
- Average wind speed in July: 4.6mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in July
Portsmouth, OH
- Average humidity in July: 76%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in July
Portsmouth, OH
- Average rainfall in July: 2.72"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in July
Portsmouth, OH
- Average rainfall days in July: 16.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in July
Portsmouth, OH
- Average snowfall in July: 0"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Portsmouth, OH
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (10.6 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
Portsmouth, OH
- 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in July
Portsmouth, OH
- Average sunshine days in July: 11.8 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (10 days).
Average UV index in July
Portsmouth, OH
- 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, November and December (UV index 2).
Average cloud cover in July
Portsmouth, OH
- Average cloud cover in July: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in July
Portsmouth, OH
- Average visibility in July: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
