Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July is the month when Riverdale Heights experiences its warmest temperatures, averaging a high of 87.4°F (30.8°C) and a low of 70°F (21.1°C).Heat index
The average heat index in July is calculated to be a sweltering 98.6°F (37°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The months with the lowest humidity are April and July, with an average relative humidity of 71%.Rainfall
In Riverdale Heights, in July, it is raining for 16.8 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, in Riverdale Heights, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.Snowfall
In Riverdale Heights, Maryland, snow does not fall in May through November.Daylight
In Riverdale Heights, the average length of the day in July is 14h and 35min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:37 pm. On the last day of July, in Riverdale Heights, sunrise is at 6:08 am and sunset at 8:19 pm EDT.
Sunshine
The month with the most sunshine in Riverdale Heights is July, with an average of 10.9h of sunshine.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Riverdale Heights. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 6 in July transforms into the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the hottest time of year in Riverdale Heights?
Is it hot in Riverdale Heights during July?
What are the least humid months in Riverdale Heights?
What is the average humidity in July in Riverdale Heights?
How many days does it rain in July in Riverdale Heights?
When it does not snow in Riverdale Heights?
How many hours of daylight does Riverdale Heights have in July?
When are sunrise and sunset in July in Riverdale Heights?
What month has the most sunshine in Riverdale Heights?
How many hours of sunshine does Riverdale Heights have in July?
What are the months with the highest UV index in Riverdale Heights?
What is the UV index intensity in July in Riverdale Heights?
Average temperature in July
Riverdale Heights, MD
- Average high temperature in July: 87.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in July: 70°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in July
Riverdale Heights, MD
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Riverdale Heights, MD
- Average wind speed in July: 5.4mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in July
Riverdale Heights, MD
- Average humidity in July: 71%
The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in July
Riverdale Heights, MD
- Average rainfall in July: 3.11"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in July
Riverdale Heights, MD
- Average rainfall days in July: 16.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).
Average snowfall in July
Riverdale Heights, MD
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in July
Riverdale Heights, MD
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.1 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
Riverdale Heights, MD
- Average daylight in July: 14h and 4min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in July
Riverdale Heights, MD
- Average sunshine days in July: 12 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in July
Riverdale Heights, MD
- 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 and December (UV index 2).
Average cloud cover in July
Riverdale Heights, MD
- Average cloud cover in July: 29
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in July
Riverdale Heights, MD
- 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).
Riverdale Heights, Maryland, USA
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