July weather forecast
Glyndon, MD

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Weather in July

July, like June, in Glyndon, Maryland, is another warm summer month, with an average temperature fluctuating between 66.7°F (19.3°C) and 84.2°F (29°C).

Temperature

July is the warmest month, exhibiting average temperatures of 84.2°F (29°C) at the peak and 66.7°F (19.3°C) at the base.

Heat index

The heat index value for July is appraised at a hot 93.2°F (34°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

January, March, April, July and November, with an average relative humidity of 75%, are the least humid months.

Rainfall

In July, in Glyndon, Maryland, the rain falls for 17 days. Throughout July, 3.03" (77mm) of precipitation is accumulated. In Glyndon, during the entire year, the rain falls for 158.9 days and collects up to 31.38" (797mm) of precipitation.

Snowfall

In Glyndon, snow does not fall in May through September.

Daylight

In Glyndon, the average length of the day in July is 14h and 38min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:38 pm. On the last day of July, in Glyndon, sunrise is at 6:06 am and sunset at 8:20 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.6h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What are the warmest months?

The highest temperatures are recorded in July, with averages reaching a high of 84.2°F (29°C) and a low of 66.7°F (19.3°C).

How hot does it get in July?

July temperatures vary between a high-temperature of 84.2°F (29°C) and a low-temperature of 66.7°F (19.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in July is appraised at 93.2°F (34°C).

What are the least humid months?

The months with the lowest humidity are January, March, April, July and November, with an average relative humidity of 75%.

What is the average humidity in July?

In Glyndon, the average relative humidity in July is 75%.

How much does it rain in July?

In July, the rain falls for 17 days. Throughout July, 3.03" (77mm) of precipitation is accumulated.

When it does not snow in Glyndon?

May through September are months without snowfall.

How many hours of daylight does Glyndon have in July?

In July, the average day length is 14h and 38min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:44 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:20 pm EDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.6h of sunshine.

How many hours of sunshine does Glyndon have in July?

The average sunshine duration in July is 10.6h.

What is the month 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 reading in July?

In Glyndon, the average daily maximum UV index in July is 6. A UV Index reading 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
Glyndon, MD

Average temperature in July - Glyndon, MD
  • Average high temperature in July: 84.2°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in July: 66.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in July
Glyndon, MD

Average pressure in July - Glyndon, 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
Glyndon, MD

Average wind speed in July - Glyndon, MD
  • Average wind speed in July: 5.3mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in July
Glyndon, MD

Average humidity in July - Glyndon, MD
  • Average humidity in July: 75%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).

Average rainfall in July
Glyndon, MD

Average rainfall in July - Glyndon, MD
  • Average rainfall in July: 3.03"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").

Average rainfall days in July
Glyndon, MD

Average rainfall days in July - Glyndon, MD
  • Average rainfall days in July: 17 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in July
Glyndon, MD

Average snowfall in July - Glyndon, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Glyndon, MD

Average snowfall days in July - Glyndon, MD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.6 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
Glyndon, MD

Average daylight in July / Average sunshine in July - Glyndon, 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 24min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in July
Glyndon, MD

Average sunshine days in July - Glyndon, MD
  • Average sunshine days in July: 12.1 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in July
Glyndon, MD

Average UV index in July - Glyndon, 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
Glyndon, MD

Average cloud cover in July - Glyndon, MD
  • Average cloud cover in July: 31

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in July
Glyndon, MD

Average visibility in July - Glyndon, MD
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Glyndon, Maryland, USA

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