July weather forecast
Columbia, MD

July in Columbia, Maryland, is synonymous with peak summer. Adorned by bountiful sunshine, the city glimmers, as locals and tourists bask in the warm temperature. Despite the heat, the beauty and vitality of Columbia remains undeterred. Unsurprisingly, July catches attention with the highest temperature of 85.8°F (29.9°C), granting it the title of the hottest month. As the month concludes, anticipation of milder days fills the air.

Temperature

July, recognised by an average high temperature of 85.8°F (29.9°C) and a low of 68.9°F (20.5°C), is Columbia's warmest month.

Heat index

July's average heat index is appraised at a very hot 95°F (35°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

April and July, with an average relative humidity of 72%, are the least humid months in Columbia, Maryland.

Rainfall

In Columbia, in July, during 17.3 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 159.3 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Columbia.

Daylight

In Columbia, Maryland, the average length of the day in July is 14h and 37min.
On the first day of July in Columbia, sunrise is at 5:45 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:20 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.8h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Columbia. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.