August weather forecastDuncombe, IA
August
Weather in August
August, the last month of the summer in Duncombe, is another warm month, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 61°F (16.1°C).Temperature
Duncombe, Iowa, sees the arrival of August with an average high-temperature of a still warm 79°F (26.1°C), indicating a subtle variation from July. Duncombe's temperature tends to fall to an average low of 61°F (16.1°C) during the nights of August.Humidity
In Duncombe, the average relative humidity in August is 81%.Rainfall
In Duncombe, during August, the rain falls for 14.7 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Duncombe, Iowa, during the entire year, the rain falls for 135.2 days and collects up to 26.5" (673mm) of precipitation.Snowfall
In Duncombe, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 51min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:40 am and sunset at 7:51 pm CDT.
Sunshine
In August, the average sunshine in Duncombe is 9.6h.UV index
The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 in August translates into these instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Duncombe, IA
- Average high temperature in August: 79°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in August: 61°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in August
Duncombe, IA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Duncombe, IA
- Average wind speed in August: 7.3mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in August
Duncombe, IA
- Average humidity in August: 81%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (69%).
Average rainfall in August
Duncombe, IA
- Average rainfall in August: 2.48"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in August
Duncombe, IA
- Average rainfall days in August: 14.7 days
The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in August
Duncombe, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Duncombe, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Duncombe, IA
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Duncombe, IA
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in August
Duncombe, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Duncombe, IA
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in August
Duncombe, IA
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
