August weather forecastNorthwood, IA
August
Weather in August
August in Northwood experiences slight relief from July’s peak summer conditions. The weather remains consistently warm, although not as intense as July, and there's slightly less rainfall. As the month progresses, early signs of Autumn start to become noticeable. The weather transition into September is marked by temperatures beginning to drop, and less daily sunshine hours. August in Northwood exhibits a gradual shift from the height of summer towards the mellow, cooling temperatures of fall.Temperature
The transition from July to August brings an average high-temperature of a still moderately hot 76.8°F (24.9°C), barely different from July's 79.2°F (26.2°C). Nighttime temperatures hover around an average low of 59.5°F (15.3°C) in August.Humidity
In August, the average relative humidity in Northwood is 82%.Rainfall
In Northwood, Iowa, during August, the rain falls for 14.7 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 134.3 rainfall days, and 25.08" (637mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Northwood.Daylight
In Northwood, the average length of the day in August is 13h and 55min.On the first day of August in Northwood, sunrise is at 6:03 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:49 pm CDT.
Sunshine
In Northwood, Iowa, the average sunshine in August is 9.6h.UV index
In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 during August translates into the following directions:
Guard yourself - Avoiding sunburn is suggested. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Northwood, IA
- Average high temperature in August: 76.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in August: 59.5°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 (9°F).
Average pressure in August
Northwood, 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
Northwood, IA
- Average wind speed in August: 7.4mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.4mph).
Average humidity in August
Northwood, IA
- Average humidity in August: 82%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (72%).
Average rainfall in August
Northwood, IA
- Average rainfall in August: 2.4"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in August
Northwood, IA
- Average rainfall days in August: 14.7 days
The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in August
Northwood, 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
Northwood, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Northwood, IA
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 9h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Northwood, IA
- Average sunshine days in August: 14 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in August
Northwood, 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, February, November and December (UV index 1).
Average cloud cover in August
Northwood, IA
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Northwood, IA
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
