Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
The warmest month is July, 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
For most parts of July, the heat index is calculated to be a tropical 89.6°F (32°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The average relative humidity in July is 77%.Rainfall
In July, the rain falls for 12.3 days. Throughout July, 1.46" (37mm) of precipitation is accumulated. 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 is 14h and 57min.On the first day of July, 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
The month with the most sunshine is July, with an average of 10.7h of sunshine.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during July translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
Is it hot during July?
What is the average humidity in July?
How many days does it rain in July?
When it does not snow?
How many hours of daylight does Merrill have in July?
When are sunrise and sunset in July?
What month has the most sunshine?
How many hours of sunshine does Merrill have in July?
What is the month with the highest UV index?
What is the UV index reading in July in Merrill?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Merrill, Iowa, USA
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