July weather forecast
Saint Johns Green, MD

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Weather in July

July, like June, in Saint Johns Green, Maryland, is a moderately hot summer month, with an average temperature varying between 68.7°F (20.4°C) and 85.6°F (29.8°C).

Temperature

Saint Johns Green's temperatures peak on average in July, reaching 85.6°F (29.8°C) at their highest and 68.7°F (20.4°C) at their lowest.

Heat index

Throughout July, the heat index is calculated to be a torrid 95°F (35°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

With an average relative humidity of 71%, July is the least humid month.

Rainfall

In July, the rain falls for 17.7 days. Throughout July, 3.19" (81mm) of precipitation is accumulated. Throughout the year, there are 165.5 rainfall days, and 31.65" (804mm) of precipitation is accumulated.

Snowfall

In Saint Johns Green, snow does not fall in May through October.

Daylight

In Saint Johns Green, the average length of the day in July is 14h and 37min.
On the first day of July, sunrise is at 5:44 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. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

What part of the year is the hottest?

During the warmest month in Saint Johns Green, July, temperatures average a high of 85.6°F (29.8°C) and a low of 68.7°F (20.4°C).

How hot is July?

Saint Johns Green in July has an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 68.7°F (20.4°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 95°F (35°C).

What is the least humid month?

July is the least humid month, with an average relative humidity of 71%.

What is the average humidity in July?

In Saint Johns Green, the average relative humidity in July is 71%.

How much does it rain in July?

In Saint Johns Green, in July, it is raining for 17.7 days, with typically 3.19" (81mm) of accumulated precipitation.

When it does not snow in Saint Johns Green?

May through October are months without snowfall.

What is the average length of the day in July?

In Saint Johns Green, the average day length in July is 14h and 37min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:44 am and sunset at 8:37 pm. On the last day of the month, in Saint Johns Green, sunrise is at 6:07 am and sunset at 8:20 pm EDT.

What month has the most sunshine in Saint Johns Green?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July in Saint Johns Green?

In Saint Johns Green, Maryland, the average sunshine duration in July is 10.8h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Saint Johns Green, MD

Average temperature in July - Saint Johns Green, MD
  • Average high temperature in July: 85.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in July: 68.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in July
Saint Johns Green, MD

Average pressure in July - Saint Johns Green, 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
Saint Johns Green, MD

Average wind speed in July - Saint Johns Green, MD
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in July
Saint Johns Green, MD

Average humidity in July - Saint Johns Green, MD
  • Average humidity in July: 71%

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in July
Saint Johns Green, MD

Average rainfall in July - Saint Johns Green, MD
  • Average rainfall in July: 3.19"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in July
Saint Johns Green, MD

Average rainfall days in July - Saint Johns Green, MD
  • Average rainfall days in July: 17.7 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in July
Saint Johns Green, MD

Average snowfall in July - Saint Johns Green, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Saint Johns Green, MD

Average snowfall days in July - Saint Johns Green, MD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.9 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
Saint Johns Green, MD

Average daylight in July / Average sunshine in July - Saint Johns Green, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in July
Saint Johns Green, MD

Average sunshine days in July - Saint Johns Green, MD
  • Average sunshine days in July: 11.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in July
Saint Johns Green, MD

Average UV index in July - Saint Johns Green, 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, February, November and December (UV index 2).

Average cloud cover in July
Saint Johns Green, MD

Average cloud cover in July - Saint Johns Green, 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
Saint Johns Green, MD

Average visibility in July - Saint Johns Green, 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).

Saint Johns Green, Maryland, USA

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