July weather forecast
Mercerville, OH

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Weather in July

July in Mercerville, Ohio, is a tropical summer month, with an average temperature fluctuating between 64.4°F (18°C) and 86.5°F (30.3°C).

Temperature

July is the month when Mercerville's temperatures reach their peak, with averages of 86.5°F (30.3°C) and lows of 64.4°F (18°C).

Heat index

July's heat index is calculated to be a torrid 98.6°F (37°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
The metrics for the heat index are tailored for both shady environments and light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in July in Mercerville is 76%.

Rainfall

In Mercerville, in July, it is raining for 15.1 days, with typically 1.54" (39mm) of accumulated precipitation. In Mercerville, during the entire year, the rain falls for 149 days and collects up to 16.26" (413mm) of precipitation.

Snowfall

In Mercerville, Ohio, snow does not fall in May through September.

Daylight

In July, the average length of the day is 14h and 34min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:57 pm. On the last day of July, sunrise is at 6:30 am and sunset at 8:40 pm EDT.

Sunshine

In Mercerville, the average sunshine in July is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Mercerville. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during July translates into these guidelines:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What are the warmest months in Mercerville?

July, recognised by an average high temperature of 86.5°F (30.3°C) and a low of 64.4°F (18°C), is Mercerville's warmest month.

How hot is July in Mercerville?

The high-temperature, in July, in Mercerville, records 86.5°F (30.3°C), while the low-temperature is 64.4°F (18°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 98.6°F (37°C).

What is the average humidity in July in Mercerville?

The average relative humidity in July in Mercerville, Ohio, is 76%.

How much does it rain in Mercerville in July?

In Mercerville, during July, the rain falls for 15.1 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow in Mercerville?

In Mercerville, Ohio, snow does not fall in May through September.

What is the average length of the day in July in Mercerville?

In Mercerville, Ohio, the average day length in July is 14h and 34min.

What time are sunrise and sunset in July in Mercerville?

In July, on the first day of the month, sunrise is at 6:08 am and sunset at 8:57 pm. On the last day of the month, in Mercerville, Ohio, sunrise is at 6:30 am and sunset at 8:40 pm EDT.

How many hours of sunshine does Mercerville have in July?

In July, the average sunshine duration in Mercerville, Ohio, is 10h.

What is the month with the highest UV index in Mercerville?

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

What is the UV index reading in July in Mercerville?

In July, the average daily maximum UV index in Mercerville is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe 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
Mercerville, OH

Average temperature in July - Mercerville, OH
  • Average high temperature in July: 86.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 64.4°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in July
Mercerville, OH

Average pressure in July - Mercerville, OH
  • Average pressure in July: 30"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in July
Mercerville, OH

Average wind speed in July - Mercerville, OH
  • Average wind speed in July: 4.5mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in July
Mercerville, OH

Average humidity in July - Mercerville, OH
  • Average humidity in July: 76%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in July
Mercerville, OH

Average rainfall in July - Mercerville, OH
  • Average rainfall in July: 1.54"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is November (0.83").

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Average rainfall days in July
Mercerville, OH

Average rainfall days in July - Mercerville, OH
  • Average rainfall days in July: 15.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in July
Mercerville, OH

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

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Mercerville, OH

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

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Mercerville, OH

Average daylight in July / Average sunshine in July - Mercerville, OH
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in July
Mercerville, OH

Average sunshine days in July - Mercerville, OH
  • Average sunshine days in July: 12.9 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in July
Mercerville, OH

Average UV index in July - Mercerville, OH
  • 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 and December (UV index 2).

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Average cloud cover in July
Mercerville, OH

Average cloud cover in July - Mercerville, OH
  • Average cloud cover in July: 36

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in July
Mercerville, OH

Average visibility in July - Mercerville, OH
  • Average visibility in July: 5mi

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

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Mercerville, Ohio, USA

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