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
July, marked by an average high-temperature of 82°F (27.8°C) and a low-temperature of 64°F (17.8°C), is the warmest month.Heat index
Throughout July, the heat index is computed to be a hot 87.8°F (31°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Always consider that heat index estimations are for light winds and places in the shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
The average relative humidity in July is 78%.Rainfall
In Marcus, Iowa, during July, the rain falls for 12.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 116.2 rainfall days, and 22.05" (560mm) of precipitation is accumulated.Snowfall
In Marcus, snow does not fall in May through September.Daylight
In July, the average length of the day is 14h and 58min.On the first day of July, sunrise is at 5:48 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:44 pm CDT.
Sunshine
July has the most sunshine of the year, with an average of 10.5h 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 reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 6 during July, leads to the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
What is the usual temperature for Marcus in July?
What is the average humidity in July in Marcus?
How much does it rain in July?
When it does not snow?
What is the average length of the day in July in Marcus?
What time are sunrise and sunset in July in Marcus?
What month has the most sunshine?
How many hours of sunshine does Marcus have in July?
What are the months with the highest UV index?
What is the UV index reading in July?
Average temperature in July
Marcus, IA
- Average high temperature in July: 82°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in July: 64°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in July
Marcus, 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
Marcus, IA
- Average wind speed in July: 7.7mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in July
Marcus, IA
- Average humidity in July: 78%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (67%).
Average rainfall in July
Marcus, IA
- Average rainfall in July: 1.93"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in July
Marcus, IA
- Average rainfall days in July: 12.8 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in July
Marcus, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Marcus, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Marcus, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in July
Marcus, IA
- Average sunshine days in July: 15.8 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in July
Marcus, IA
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Marcus, IA
- Average cloud cover in July: 27
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in July
Marcus, 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).
Marcus, Iowa, USA
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