Average Weather in August in Algona Iowa, United States
Daily high temperatures decrease by 3°F, from 82°F to 79°F, rarely falling below 70°F or exceeding 90°F.
Daily low temperatures decrease by 4°F, from 64°F to 59°F, rarely falling below 49°F or exceeding 72°F.
For reference, on July 5, the hottest day of the year, temperatures in Algona typically range from 64°F to 84°F, while on January 20, the coldest day of the year, they range from 11°F to 27°F.
Average High and Low Temperature in August
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in August
The month of August in Algona experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 30% throughout the month.
The clearest day of the month is August 1, with clear, mostly clear, or partly cloudy conditions 71% of the time.
For reference, on December 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
Cloud Cover Categories in August
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Algona, the chance of a wet day over the course of August is decreasing, starting the month at 36% and ending it at 31%.
For reference, the year's highest daily chance of a wet day is 44% on June 7, and its lowest chance is 8% on February 12.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Algona is gradually decreasing, starting the month at 3.5 inches, when it rarely exceeds 6.0 inches or falls below 1.3 inches, and ending the month at 3.2 inches, when it rarely exceeds 6.0 inches or falls below 1.3 inches.
Average Monthly Rainfall in August
Over the course of August in Algona, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 17 minutes, implying an average daily decrease of 2 minutes, 35 seconds, and weekly decrease of 18 minutes, 4 seconds.
The shortest day of the month is August 31, with 13 hours, 13 minutes of daylight and the longest day is August 1, with 14 hours, 30 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Algona is 6:07 AM on August 1 and the latest sunrise is 33 minutes later at 6:40 AM on August 31.
The latest sunset is 8:38 PM on August 1 and the earliest sunset is 45 minutes earlier at 7:53 PM on August 31.
Daylight saving time is observed in Algona during 2018, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:37 AM and sets 15 hours, 22 minutes later, at 8:59 PM, while on December 21, the shortest day of the year, it rises at 7:45 AM and sets 9 hours, 0 minutes later, at 4:44 PM.
Sunrise & Sunset with Twilight in August
The chance that a given day will be muggy in Algona is rapidly decreasing during August, falling from 45% to 28% over the course of the month.
For reference, on July 21, the muggiest day of the year, there are muggy conditions 48% of the time, while on November 15, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in August
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Algona is gradually increasing during August, increasing from 8.5 miles per hour to 9.5 miles per hour over the course of the month.
For reference, on April 9, the windiest day of the year, the daily average wind speed is 13.5 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 8.4 miles per hour.
The lowest daily average wind speed during August is 8.4 miles per hour on August 3.
Average Wind Speed in August
Wind Direction in August
The growing season in Algona typically lasts for 5.6 months (169 days), from around April 22 to around October 8, rarely starting before April 5 or after May 10, and rarely ending before September 21 or after October 26.
The month of August in Algona is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in August
The average accumulated growing degree days in Algona are rapidly increasing during August, increasing by 616°F, from 1,819°F to 2,435°F, over the course of the month.
Growing Degree Days in August
The average daily incident shortwave solar energy in Algona is decreasing during August, falling by 1.0 kWh, from 6.6 kWh to 5.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August
For the purposes of this report, the geographical coordinates of Algona are 43.070 deg latitude, -94.233 deg longitude, and 1,191 ft elevation.
The topography within 2 miles of Algona contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 1,169 feet. Within 10 miles also contains only modest variations in elevation (213 feet). Within 50 miles contains only modest variations in elevation (630 feet).
The area within 2 miles of Algona is covered by cropland (68%) and artificial surfaces (22%), within 10 miles by cropland (98%), and within 50 miles by cropland (98%).
This report illustrates the typical weather in Algona year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Algona.
For each station, the records are corrected for the elevation difference between that station and Algona according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Algona is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Algona and a given station.
The stations contributing to this reconstruction are: Algona Municipal Airport (96%, 3.3 kilometers, west); Forest City Municipal Airport (1.6%, 53 kilometers, east); Clarion Municipal Airport (1.5%, 53 kilometers, southeast); and Fort Dodge Municipal Airport (1.3%, 58 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .