Climate and Average Weather Year Round at Audubon County Airport Iowa, United States
At Audubon County Airport, the summers are long, warm, humid, and wet; the winters are freezing, dry, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 13°F to 85°F and is rarely below -6°F or above 93°F.
Based on the tourism score, the best time of year to visit Audubon County Airport for warm-weather activities is from early June to early September.
Climate at Audubon County Airport
Average Temperature at Audubon County Airport
The hot season lasts for 3.9 months, from May 23 to September 21, with an average daily high temperature above 74°F. The hottest day of the year is July 20, with an average high of 85°F and low of 64°F.
The cold season lasts for 3.0 months, from November 27 to February 28, with an average daily high temperature below 42°F. The coldest day of the year is January 20, with an average low of 13°F and high of 32°F.
Average High and Low Temperature at Audubon County Airport
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature at Audubon County Airport
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
Mayakovski, Armenia (6,240 miles away); Almaty, Kazakhstan (6,552 miles); and Hoeyang, North Korea (6,278 miles) are the far-away foreign places with temperatures most similar to Audubon County Airport (view comparison).
At Audubon County Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year at Audubon County Airport begins around June 8 and lasts for 4.5 months, ending around October 23. On July 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 72% of the time, and overcast or mostly cloudy 28% of the time.
The cloudier part of the year begins around October 23 and lasts for 7.5 months, ending around June 8. On December 28, the cloudiest day of the year, the sky is overcast or mostly cloudy 54% of the time, and clear, mostly clear, or partly cloudy 46% of the time.
Cloud Cover Categories at Audubon County Airport
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. The chance of wet days at Audubon County Airport varies significantly throughout the year.
The wetter season lasts 5.9 months, from April 7 to October 4, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 43% on June 7.
The drier season lasts 6.1 months, from October 4 to April 7. The smallest chance of a wet day is 8% on January 28.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation at Audubon County Airport changes throughout the year.
Rain alone is the most common for 9.4 months, from February 21 to December 5. The highest chance of a day with rain alone is 43% on June 7.
Snow alone is the most common for 2.6 months, from December 5 to February 21. The highest chance of a day with snow alone is 6% on December 22.
Daily Chance of Precipitation at Audubon County Airport
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Audubon County Airport experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.9 months, from February 22 to December 19, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 15, with an average total accumulation of 4.5 inches.
The rainless period of the year lasts for 2.1 months, from December 19 to February 22. The least rain falls around January 23, with an average total accumulation of 0.2 inches.
Average Monthly Rainfall at Audubon County Airport
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Audubon County Airport experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 5.1 months, from October 31 to April 4, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 17, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 6.9 months, from April 4 to October 31. The least snow falls around July 17, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall at Audubon County Airport
The length of the day at Audubon County Airport varies significantly over the course of the year. In 2021, the shortest day is December 21, with 9 hours, 9 minutes of daylight; the longest day is June 20, with 15 hours, 13 minutes of daylight.
Hours of Daylight and Twilight at Audubon County Airport
The earliest sunrise is at 5:44 AM on June 14, and the latest sunrise is 2 hours, 14 minutes later at 7:58 AM on November 6. The earliest sunset is at 4:49 PM on December 7, and the latest sunset is 4 hours, 9 minutes later at 8:58 PM on June 27.
Daylight saving time (DST) is observed at Audubon County Airport during 2021, starting in the spring on March 14, lasting 7.8 months, and ending in the fall on November 7.
Sunrise & Sunset with Twilight and Daylight Saving Time at Audubon County Airport
The figure below presents a compact representation of key lunar data for 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.
Moon Rise, Set & Phases at Audubon County Airport
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
Audubon County Airport experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.5 months, from June 2 to September 16, during which time the comfort level is muggy, oppressive, or miserable at least 13% of the time. The muggiest day of the year is July 22, with muggy conditions 52% of the time.
The least muggy day of the year is January 31, when muggy conditions are essentially unheard of.
Humidity Comfort Levels at Audubon County Airport
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed at Audubon County Airport experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 8.1 months, from September 25 to May 28, with average wind speeds of more than 10.8 miles per hour. The windiest day of the year is April 1, with an average hourly wind speed of 13.2 miles per hour.
The calmer time of year lasts for 3.9 months, from May 28 to September 25. The calmest day of the year is August 3, with an average hourly wind speed of 8.4 miles per hour.
Average Wind Speed at Audubon County Airport
The predominant average hourly wind direction at Audubon County Airport varies throughout the year.
The wind is most often from the south for 7.7 months, from April 21 to December 12, with a peak percentage of 49% on September 5. The wind is most often from the north for 4.3 months, from December 12 to April 21, with a peak percentage of 33% on January 1.
Wind Direction at Audubon County Airport
Best Time of Year to Visit
To characterize how pleasant the weather is at Audubon County Airport throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Audubon County Airport for general outdoor tourist activities is from early June to early September, with a peak score in the second week of August.
Tourism Score at Audubon County Airport
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Audubon County Airport for hot-weather activities is from late June to mid August, with a peak score in the third week of July.
Beach/Pool Score at Audubon County Airport
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).
The growing season at Audubon County Airport typically lasts for 5.3 months (160 days), from around April 25 to around October 2, rarely starting before April 7 or after May 15, and rarely ending before September 15 or after October 20.
Time Spent in Various Temperature Bands and the Growing Season at Audubon County Airport
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.
Based on growing degree days alone, the first spring blooms at Audubon County Airport should appear around April 9, only rarely appearing before March 27 or after April 26.
Growing Degree Days at Audubon County Airport
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.6 months, from May 3 to August 23, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is July 4, with an average of 7.1 kWh.
The darker period of the year lasts for 3.2 months, from November 2 to February 10, with an average daily incident shortwave energy per square meter below 2.9 kWh. The darkest day of the year is December 21, with an average of 1.8 kWh.
Average Daily Incident Shortwave Solar Energy at Audubon County Airport
For the purposes of this report, the geographical coordinates of Audubon County Airport are 41.701 deg latitude, -94.921 deg longitude, and 1,283 ft elevation.
The topography within 2 miles of Audubon County Airport contains only modest variations in elevation, with a maximum elevation change of 207 feet and an average elevation above sea level of 1,352 feet. Within 10 miles also contains only modest variations in elevation (344 feet). Within 50 miles contains only modest variations in elevation (709 feet).
The area within 2 miles of Audubon County Airport is covered by cropland (98%), within 10 miles by cropland (99%), and within 50 miles by cropland (97%).
This report illustrates the typical weather at Audubon County Airport, 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
Audubon County Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
The stations on which we may fall back include but are not limited to Atlantic Municipal Airport, Arthur N Neu Airport, Harlan Municipal Airport, Denison Municipal Airport, Perry Municipal Airport, Red Oak Municipal Airport, Creston Municipal Airport, and Council Bluffs Municipal Airport.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for airports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.