July weather forecastHenderson, IA
July
Weather in July
July, like June, in Henderson, Iowa, is a moderately hot summer month, with an average temperature ranging between min 65.8°F (18.8°C) and max 83.7°F (28.7°C).Temperature
Henderson experiences its highest average temperatures in July, reaching a peak of 83.7°F (28.7°C) and a minimum of 65.8°F (18.8°C).Heat index
The heat index value during July is calculated to be a hot 93.2°F (34°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In Henderson, the average relative humidity in July is 79%.Rainfall
In Henderson, in July, it is raining for 13.7 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 117.2 rainfall days, and 21.77" (553mm) of precipitation is accumulated.Snowfall
In Henderson, Iowa, snow does not fall in May through September.Daylight
In July, the average length of the day is 14h and 47min.On the first day of July, sunrise is at 5:53 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:38 pm CDT.
Sunshine
With an average of 10.3h of sunshine, July has the most sunshine of the year.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Henderson. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 6 in July leads to these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Henderson, IA
- Average high temperature in July: 83.7°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in July: 65.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in July
Henderson, IA
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in July
Henderson, IA
- Average wind speed in July: 6.8mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in July
Henderson, IA
- Average humidity in July: 79%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (68%).
Average rainfall in July
Henderson, IA
- Average rainfall in July: 2.32"
The wettest month (with the highest rainfall) is June (4.06").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in July
Henderson, IA
- Average rainfall days in July: 13.7 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in July
Henderson, IA
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Henderson, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (7.9 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
Henderson, IA
- Average daylight in July: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in July: 10h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in July
Henderson, IA
- Average sunshine days in July: 14.3 days
The month with the most sunshine days is December (23.1 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in July
Henderson, IA
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in July
Henderson, IA
- Average cloud cover in July: 27
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in July
Henderson, 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).
