July weather forecast
Merwin, OH

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Weather in July

July, like June, in Merwin, Ohio, is another warm summer month, with an average temperature ranging between min 65.8°F (18.8°C) and max 84.4°F (29.1°C).

Temperature

The warmest period is July, when temperatures fluctuate between an average high of 84.4°F (29.1°C) and a low of 65.8°F (18.8°C).

Heat index

In July, the average heat index is estimated at a fiery hot 95°F (35°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In July, the average relative humidity is 78%.

Rainfall

In Merwin, in July, during 14.7 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, in Merwin, there are 139.9 rainfall days, and 18.11" (460mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In July, the average length of the day is 14h and 35min.
On the first day of the month, sunrise is at 6:15 am and sunset at 9:06 pm. On the last day of July, sunrise is at 6:37 am and sunset at 8:49 pm EDT.

Sunshine

With an average of 10.3h of sunshine, July has the most sunshine of the year.

UV index

June 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 exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during July leads to these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

July, noted for its average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 65.8°F (18.8°C), is considered the warmest month.

How hot is it in July?

In Merwin, in July, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 65.8°F (18.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 95°F (35°C).

What is the average humidity in July?

In July, the average relative humidity is 78%.

How much does it rain in July?

In Merwin, in July, it is raining for 14.7 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow in Merwin?

In Merwin, snow does not fall in May through October.

How many hours of daylight does Merwin have in July?

The average day length in July is 14h and 35min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 6:15 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 8:49 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.3h of sunshine.

How long on average sun shines in July?

In Merwin, the average sunshine duration in July is 10.3h.

When is the highest UV index?

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

How high is the UV index in July?

In Merwin, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Merwin, OH

Average temperature in July - Merwin, OH
  • Average high temperature in July: 84.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in July: 65.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in July
Merwin, OH

Average pressure in July - Merwin, OH
  • Average pressure in July: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Merwin, OH

Average wind speed in July - Merwin, OH
  • Average wind speed in July: 5.1mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

Average humidity in July
Merwin, OH

Average humidity in July - Merwin, OH
  • Average humidity in July: 78%

The months with the highest relative humidity are January, February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).

Average rainfall in July
Merwin, OH

Average rainfall in July - Merwin, OH
  • Average rainfall in July: 1.81"

The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is September (0.94").

Average rainfall days in July
Merwin, OH

Average rainfall days in July - Merwin, OH
  • Average rainfall days in July: 14.7 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in July
Merwin, OH

Average snowfall in July - Merwin, OH
  • Average snowfall in July: 0"

The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Merwin, OH

Average snowfall days in July - Merwin, OH
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.9 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
Merwin, OH

Average daylight in July / Average sunshine in July - Merwin, OH
  • 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in July
Merwin, OH

Average sunshine days in July - Merwin, OH
  • Average sunshine days in July: 13.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in July
Merwin, OH

Average UV index in July - Merwin, OH
  • Average UV index in July: 6

The months with the highest UV index are 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
Merwin, OH

Average cloud cover in July - Merwin, OH
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in July
Merwin, OH

Average visibility in July - Merwin, OH
  • 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).

Merwin, Ohio, USA

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