July weather forecastSpillville, IA
July
Weather in July
July, like June, in Spillville, Iowa, is a moderately hot summer month, with an average temperature ranging between max 78.4°F (25.8°C) and min 61.9°F (16.6°C).Temperature
In Spillville, July is the warmest month, with temperatures averaging a high of 78.4°F (25.8°C) and a low of 61.9°F (16.6°C).Humidity
The average relative humidity in July is 84%.Rainfall
In Spillville, during July, the rain falls for 18 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Spillville, 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
In July, the average length of the day is 15h and 1min.On the first day of the month, sunrise is at 5:32 am and sunset at 8:51 pm. On the last day of July, in Spillville, sunrise is at 5:57 am and sunset at 8:30 pm CDT.
Sunshine
In July, the average sunshine is 9.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during July leads to these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Spillville, 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
Spillville, 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
Spillville, 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
Spillville, 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
Spillville, 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
Spillville, 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
Spillville, 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
Spillville, 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
Spillville, 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 42min
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
Spillville, 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
Spillville, 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
Spillville, 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
Spillville, 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).





