July weather forecast
Merrill, IA

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Weather in July

July, like June, in Merrill, Iowa, is another warm summer month, with an average temperature fluctuating between 64.2°F (17.9°C) and 82.9°F (28.3°C).

Temperature

July is the warmest month, with an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 64.2°F (17.9°C).

Heat index

In July, the average heat index is computed to be a hot 89.6°F (32°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

In July, the average relative humidity is 77%.

Rainfall

In Merrill, during July, the rain falls for 12.3 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Merrill, during the entire year, the rain falls for 112 days and collects up to 15.71" (399mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in July in Merrill is 14h and 57min.
On the first day of July in Merrill, sunrise is at 5:51 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:46 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

The months with the highest UV index in Merrill are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in July transforms into the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What is the hottest time of year in Merrill?

Merrill's warmest weather arrives in July, when temperatures average a high of 82.9°F (28.3°C) and a low of 64.2°F (17.9°C).

How hot does it get in Merrill in July?

The high-temperature, in July, in Merrill, records 82.9°F (28.3°C), while the low-temperature is 64.2°F (17.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is computed to be 89.6°F (32°C).

What is the average humidity in July in Merrill?

In July, the average relative humidity in Merrill, Iowa, is 77%.

How much does it rain in Merrill in July?

In Merrill, in July, it is raining for 12.3 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in Merrill?

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

How many hours of daylight does Merrill have in July?

In Merrill, Iowa, the average day length in July is 14h and 57min.

What time are sunrise and sunset in July in Merrill?

In July, on the first day of the month, sunrise is at 5:51 am and sunset at 9:06 pm. On the last day of the month, in Merrill, Iowa, sunrise is at 6:16 am and sunset at 8:46 pm CDT.

What month has the most sunshine in Merrill?

With an average of 10.7h of sunshine, July has the most sunshine of the year in Merrill.

How many hours of sunshine does Merrill have in July?

In Merrill, the average sunshine duration in July is 10.7h.

What are the months with the highest UV index in Merrill?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What is the UV index reading in July in Merrill?

In Merrill, Iowa, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Merrill, IA

Average temperature in July - Merrill, IA
  • Average high temperature in July: 82.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in July: 64.2°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

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Average pressure in July
Merrill, IA

Average pressure in July - Merrill, IA
  • Average pressure in July: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in July
Merrill, IA

Average wind speed in July - Merrill, IA
  • Average wind speed in July: 7.7mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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Average humidity in July
Merrill, IA

Average humidity in July - Merrill, IA
  • Average humidity in July: 77%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in July
Merrill, IA

Average rainfall in July - Merrill, IA
  • Average rainfall in July: 1.46"

The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in July
Merrill, IA

Average rainfall days in July - Merrill, IA
  • Average rainfall days in July: 12.3 days

The month with the highest number of rainy days is June (16.5 days).
The months with the least rainy days are February and December (2.6 days).

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Average snowfall in July
Merrill, IA

Average snowfall in July - Merrill, IA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Merrill, IA

Average snowfall days in July - Merrill, IA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Merrill, IA

Average daylight in July / Average sunshine in July - Merrill, IA
  • Average daylight in July: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in July
Merrill, IA

Average sunshine days in July - Merrill, IA
  • Average sunshine days in July: 15.8 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.9 days).

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Average UV index in July
Merrill, IA

Average UV index in July - Merrill, IA
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Merrill, IA

Average cloud cover in July - Merrill, IA
  • Average cloud cover in July: 26

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in July
Merrill, IA

Average visibility in July - Merrill, IA
  • 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).

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Merrill, Iowa, USA

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