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, with its high-temperature average of 81.1°F (27.3°C) and a low-temperature average of 64.6°F (18.1°C), is the warmest month.Heat index
Throughout July, the heat index is calculated to be a hot 87.8°F (31°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Heat index determinations are made taking into account the shade and light air movements. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
The months with the highest humidity are January and July, with an average relative humidity of 83%.Rainfall
In Sunbury, during July, the rain falls for 15.2 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 136.9 rainfall days, and 27.95" (710mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Sunbury.Daylight
The average length of the day in July is 14h and 50min.On the first day of July in Sunbury, Iowa, sunrise is at 5:33 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:22 pm CDT.
Sunshine
July has the most sunshine of the year in Sunbury, Iowa, with an average of 10.1h of sunshine.UV index
The month with the highest UV index in Sunbury is July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In July, the maximum UV index of 6 suggests this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Sunbury?
What is the average July temperature in Sunbury?
What are the most humid months in Sunbury?
What is the average humidity in July in Sunbury?
How much does it rain in Sunbury in July?
When it does not snow in Sunbury?
How many hours of daylight does Sunbury have in July?
When are sunrise and sunset in July in Sunbury?
What month has the most sunshine in Sunbury?
How many hours of sunshine does Sunbury have in July?
What is the month with the highest UV index in Sunbury?
What is the UV index reading in July in Sunbury?
Average temperature in July
Sunbury, IA
- Average high temperature in July: 81.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in July: 64.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in July
Sunbury, IA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Sunbury, IA
- Average wind speed in July: 6.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in July
Sunbury, IA
- Average humidity in July: 83%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in July
Sunbury, IA
- Average rainfall in July: 2.8"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in July
Sunbury, IA
- Average rainfall days in July: 15.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in July
Sunbury, IA
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Sunbury, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.3 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
Sunbury, IA
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in July: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in July
Sunbury, IA
- Average sunshine days in July: 13.8 days
The month with the most sunshine days is December (18.4 days).
The months with the least sunshine days are May and June (11.4 days).
Average UV index in July
Sunbury, IA
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Sunbury, IA
- Average cloud cover in July: 31
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in July
Sunbury, IA
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Sunbury, Iowa, USA
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