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
Letts experiences its highest average temperatures in July, reaching a peak of 81.7°F (27.6°C) and a minimum of 64.9°F (18.3°C).Heat index
The heat index value for July is evaluated at a hot 89.6°F (32°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
July is the most humid month in Letts, with an average relative humidity of 83%.Rainfall
In Letts, Iowa, during July, the rain falls for 16.6 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Letts, Iowa, during the entire year, the rain falls for 153.8 days and collects up to 31.69" (805mm) of precipitation.Snowfall
In Letts, snow does not fall in May through September.Daylight
In July, the average length of the day in Letts, Iowa, is 14h and 49min.On the first day of the month, sunrise is at 5:35 am and sunset at 8:42 pm. On the last day of July, in Letts, sunrise is at 5:59 am and sunset at 8:22 pm CDT.
Sunshine
With an average of 10.2h of sunshine, July has the most sunshine of the year in Letts.UV index
The months with the highest UV index in Letts are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during July leads to these instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the hottest time of year in Letts?
What are July temperatures in Letts?
What is the most humid month in Letts?
What is the average humidity in July in Letts?
How much does it rain in Letts in July?
When it does not snow in Letts?
What is the average length of the day in July in Letts?
What time are sunrise and sunset in July in Letts?
What month has the most sunshine in Letts?
How long on average sun shines in July in Letts?
When is the highest UV index in Letts?
How high is the UV index in July in Letts?
Average temperature in July
Letts, IA
- Average high temperature in July: 81.7°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in July: 64.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in July
Letts, 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
Letts, 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
Letts, IA
- Average humidity in July: 83%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Letts, IA
- Average rainfall in July: 3.23"
The wettest month (with the highest rainfall) is May (5").
The driest months (with the least rainfall) are February and December (1.46").
Average rainfall days in July
Letts, IA
- Average rainfall days in July: 16.6 days
The month with the highest number of rainy days is May (19.7 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in July
Letts, IA
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.92").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Letts, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (12.2 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
Letts, IA
- Average daylight in July: 14h and 5min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in July
Letts, IA
- Average sunshine days in July: 9.8 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in July
Letts, 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 and December (UV index 1).
Average cloud cover in July
Letts, IA
- Average cloud cover in July: 31
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in July
Letts, 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).
Letts, Iowa, USA
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