Normal weather for Potomac in July
It's hot in July in Potomac with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 33°C. At night, you can expect temperatures between 20°C and 23°C.
In July, there is an average of 204 mm of precipitation, spread over 19 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Potomac in July |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 23°C | |
 High Temp |
33°C | 27°C | |
| Low Temp |
29°C | 21°C | |
 Total Precipitation |
204 mm | 52 mm | |
| Rainy Days |
19 days | 9 days | |
Start of July
The month of July starts in Potomac with hot temperatures, averaging around 31°C during the day and nights close to 22°C. Plenty of days with a chance of precipitation.
Since temperatures can differ between day and night, it’s a good idea to dress in layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
Mid-July
By mid-July, the average daytime temperature rises to around 33°C, with nights close to 22°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
Temperatures vary between day and night, so it’s smart to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
End of July
By the end of July, the average daytime temperature in Potomac will be around 31°C, with nights close to 22°C. There’s a significant chance of many days with precipitation.
As it gets cooler in the evening, it’s best to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
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UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is July a good time to visit Potomac?
After some sun? Then July isn’t the best time to be in Potomac. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Potomac in July
With 37°C, Potomac hit the highest temperature in the last 10 years in July 2016. The lowest daytime temperature in this month was 22°C in 2016. The extreme night temperatures ranged from a low of 11°C to a high of 26°C.
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Daily Temperature in July in Potomac
This chart shows the average daily temperatures, both day and night, for each day in July in Potomac, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in July in Potomac
The chart below shows the average daily precipitation in July for Potomac, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for July, you can expect around 19 days of rain in Potomac.
Daily UV Index in July in Potomac
This chart shows the average daily UV index in July in Potomac, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in July in Potomac Over the Years
This chart shows the average temperature in July in Potomac, measured in degrees Celsius, over the past years.
Total Precipitation in July in Potomac Over the Years
This chart shows the average precipitation in July in Potomac, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in July for Potomac
Click on a specific day in July for detailed info on the typical weather on that day in Potomac. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Potomac
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Average Weather in Potomac by Month
Click on a month below to see detailed weather info for Potomac. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
