July weather forecastMartensdale, IA
July
Weather in July
July, like June, in Martensdale, Iowa, is another warm summer month, with an average temperature varying between 65.7°F (18.7°C) and 83.1°F (28.4°C).Temperature
July, with its average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 65.7°F (18.7°C), holds the record as the warmest month.Heat index
July's heat index is calculated to be a hot 91.4°F (33°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In Martensdale, the average relative humidity in July is 81%.Rainfall
In Martensdale, in July, it is raining for 14.3 days, with typically 1.85" (47mm) of accumulated precipitation. In Martensdale, Iowa, during the entire year, the rain falls for 118.9 days and collects up to 18.62" (473mm) of precipitation.Snowfall
In Martensdale, snow does not fall in June through September.Daylight
In Martensdale, the average length of the day in July is 14h and 49min.On the first day of July, sunrise is at 5:45 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:32 pm CDT.
Sunshine
The month with the most sunshine is July, with an average of 10.4h of sunshine.UV index
June through August, 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 threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 6 in July translates into these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Martensdale, IA
- Average high temperature in July: 83.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in July: 65.7°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in July
Martensdale, IA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Martensdale, IA
- Average wind speed in July: 7mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in July
Martensdale, IA
- Average humidity in July: 81%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Martensdale, IA
- Average rainfall in July: 1.85"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").
Average rainfall days in July
Martensdale, IA
- Average rainfall days in July: 14.3 days
The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in July
Martensdale, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Martensdale, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Martensdale, 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 12min).
- Average sunshine in July: 10h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in July
Martensdale, IA
- Average sunshine days in July: 13.2 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).
Average UV index in July
Martensdale, IA
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in July
Martensdale, IA
- Average cloud cover in July: 28
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in July
Martensdale, 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).





