July weather forecast
Mount Rainier, MD

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Weather in July

July embraces the height of summer with the highest temperatures experienced in Mount Rainier. The mercury scales up to a soaring 87.4°F (30.8°C) during this month, marking the warmest weather of the year. With the sun presenting longer and a drop in cloud coverage, July outshines the previous months. The rain observed in July is less compared to the wetter month of August. July's weather represents the epitome of summer in Mount Rainier, a stepping stone to an even drier and warmer August.

Temperature

Mount Rainier's warmest month, July, generally records average temperatures ranging from a high of 87.4°F (30.8°C) to a low of 70°F (21.1°C).

Heat index

During July, the heat index is estimated at a sweltering 98.6°F (37°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The months with the lowest humidity are April and July, with an average relative humidity of 71%.

Rainfall

In Mount Rainier, in July, it is raining for 16.8 days, with typically 3.11" (79mm) of accumulated precipitation. In Mount Rainier, during the entire year, the rain falls for 157.9 days and collects up to 31.14" (791mm) of precipitation.

Snowfall

May through November are months without snowfall.

Daylight

The average length of the day in July is 14h and 35min.
On the first day of July, sunrise is at 5:46 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:19 pm EDT.

Sunshine

With an average of 10.9h of sunshine, July has the most sunshine of the year.

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 risk from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

What month is the hottest?

In Mount Rainier, July is the warmest month, with temperatures averaging a high of 87.4°F (30.8°C) and a low of 70°F (21.1°C).

Is it hot during July?

In July, in Mount Rainier, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 70°F (21.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in July is estimated at 98.6°F (37°C).

What is the least humid month?

April and July, with an average relative humidity of 71%, are the least humid months.

What is the average humidity in July?

In July, the average relative humidity is 71%.

How many days does it rain in July?

In Mount Rainier, in July, it is raining for 16.8 days, with typically 3.11" (79mm) of accumulated precipitation.

When it does not snow?

In Mount Rainier, snow does not fall in May through November.

How many hours of daylight does Mount Rainier have in July?

In Mount Rainier, the average day length in July is 14h and 35min.

When are sunrise and sunset in July in Mount Rainier?

On the first day of July, sunrise is at 5:46 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:19 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.9h of sunshine.

How long on average sun shines in July?

In Mount Rainier, the average sunshine duration in July is 10.9h.

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 health risk from exposure to Sun's UV rays.
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
Mount Rainier, MD

Average temperature in July - Mount Rainier, 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
Mount Rainier, MD

Average pressure in July - Mount Rainier, 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
Mount Rainier, MD

Average wind speed in July - Mount Rainier, 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
Mount Rainier, MD

Average humidity in July - Mount Rainier, 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
Mount Rainier, MD

Average rainfall in July - Mount Rainier, 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
Mount Rainier, MD

Average rainfall days in July - Mount Rainier, 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
Mount Rainier, MD

Average snowfall in July - Mount Rainier, 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
Mount Rainier, MD

Average snowfall days in July - Mount Rainier, 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
Mount Rainier, MD

Average daylight in July / Average sunshine in July - Mount Rainier, 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
Mount Rainier, MD

Average sunshine days in July - Mount Rainier, 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
Mount Rainier, MD

Average UV index in July - Mount Rainier, 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
Mount Rainier, MD

Average cloud cover in July - Mount Rainier, 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
Mount Rainier, MD

Average visibility in July - Mount Rainier, 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).

Mount Rainier, Maryland, USA

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