Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August experiences an average high-temperature of a still moderately hot 77.5°F (25.3°C), barely different from July's 79.3°F (26.3°C). During the month of August, an average low-temperature of 59.9°F (15.5°C) is recorded.Humidity
In Rockford, the average relative humidity in August is 82%.Rainfall
In Rockford, in August, it is raining for 12.6 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, in Rockford, there are 129.5 rainfall days, and 25.98" (660mm) of precipitation is accumulated.Snowfall
In Rockford, snow does not fall in June through September.Daylight
In Rockford, the average length of the day in August is 13h and 53min.On the first day of August in Rockford, sunrise is at 6:03 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:47 pm CDT.
Sunshine
The months with the most sunshine in Rockford are July and August, with an average of 9.7h of sunshine.UV index
In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 during August leads to these advisories:
Act with care - Obligation to protect against skin and eye damage is highlighted. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
What is the month with the most sunshine?
How many hours of sunshine does Rockford have in August?
How high is the UV index in August?
Average temperature in August
Rockford, IA
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in August: 59.9°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in August
Rockford, IA
- Average pressure in August: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Rockford, IA
- Average wind speed in August: 7.3mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in August
Rockford, IA
- Average humidity in August: 82%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Rockford, IA
- Average rainfall in August: 2.36"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in August
Rockford, IA
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in August
Rockford, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Rockford, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Rockford, IA
- Average daylight in August: 13h and 5min
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 6min).
- Average sunshine in August: 9h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Rockford, IA
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in August
Rockford, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Rockford, IA
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Rockford, IA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Rockford, Iowa, USA
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