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
In Decorah, Iowa, the peak temperatures are generally noted in July, averaging a high of 78.4°F (25.8°C) and a low of 61.9°F (16.6°C).Humidity
In July, the average relative humidity is 84%.Rainfall
In Decorah, in July, it is raining for 18 days, with typically 3.15" (80mm) of accumulated precipitation. In Decorah, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in July in Decorah is 15h and 1min.On the first day of the month, sunrise is at 5:31 am and sunset at 8:51 pm. On the last day of July, sunrise is at 5:57 am and sunset at 8:29 pm CDT.
Sunshine
In Decorah, Iowa, the average sunshine in July is 9.7h.UV index
The months with the highest UV index in Decorah are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In July, a daily maximum UV index of 5 leads to the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Decorah?
What are July temperatures in Decorah?
What is the average humidity in July in Decorah?
How many days does it rain in July in Decorah?
When it does not snow in Decorah?
How many hours of daylight does Decorah have in July?
What time are sunrise and sunset in July in Decorah?
How long on average sun shines in July in Decorah?
When is the highest UV index in Decorah?
What is the UV index intensity in July in Decorah?
Average temperature in July
Decorah, IA
- Average high temperature in July: 78.4°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in July: 61.9°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in July
Decorah, IA
- Average pressure in July: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Decorah, IA
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in July
Decorah, IA
- Average humidity in July: 84%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).
Average rainfall in July
Decorah, IA
- Average rainfall in July: 3.15"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in July
Decorah, IA
- Average rainfall days in July: 18 days
The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in July
Decorah, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Decorah, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Decorah, 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 0min).
- Average sunshine in July: 9h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in July
Decorah, IA
- Average sunshine days in July: 8.6 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).
Average UV index in July
Decorah, IA
- Average UV index in July: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in July
Decorah, IA
- Average cloud cover in July: 35
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in July
Decorah, IA
- Average visibility in July: 5mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Decorah, Iowa, USA
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