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Average Weather at Eagle Creek Airpark Indiana, United States

At Eagle Creek Airpark, the summers are long, warm, humid, and wet; the winters are freezing and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 21°F to 85°F and is rarely below 3°F or above 92°F.

The warm season lasts for 3.9 months, from May 23 to September 21, with an average daily high temperature above 75°F. The hottest day of the year is July 20, with an average high of 85°F and low of 67°F.

The cold season lasts for 3.1 months, from November 30 to March 1, with an average daily high temperature below 46°F. The coldest day of the year is January 29, with an average low of 21°F and high of 36°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature at Eagle Creek AirparkJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcomfortablecoldcoolchillywarmfreezing
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

At Eagle Creek Airpark, 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 Eagle Creek Airpark begins around June 14 and lasts for 4.5 months, ending around October 31. On August 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 70% of the time, and overcast or mostly cloudy 30% of the time.

The cloudier part of the year begins around October 31 and lasts for 7.5 months, ending around June 14. On December 28, the cloudiest day of the year, the sky is overcast or mostly cloudy 59% of the time, and clear, mostly clear, or partly cloudy 41% of the time.

Cloud Cover Categories

Cloud Cover Categories at Eagle Creek AirparkclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 2370%Aug 2370%Dec 2841%Dec 2841%Jun 1455%Jun 1455%Oct 3155%Oct 3155%clearpartly cloudymostly cloudyovercastmostly clear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Eagle Creek Airpark varies throughout the year.

The wetter season lasts 4.9 months, from March 25 to August 21, with a greater than 31% chance of a given day being a wet day. The chance of a wet day peaks at 41% on June 8.

The drier season lasts 7.1 months, from August 21 to March 25. The smallest chance of a wet day is 20% 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 throughout the year is rain alone, with a peak probability of 41% on June 8.

Daily Chance of Precipitation

Daily Chance of Precipitation at Eagle Creek AirparkwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jun 841%Jun 841%Jan 2820%Jan 2820%Jan 122%Jan 122%Mar 2531%Mar 2531%Aug 2131%Aug 2131%rainsnow
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Eagle Creek Airpark experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Eagle Creek Airpark. The most rain falls during the 31 days centered around June 5, with an average total accumulation of 4.2 inches.

The least rain falls around January 28, with an average total accumulation of 1.6 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

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. Eagle Creek Airpark experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 4.1 months, from November 24 to March 26, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around February 1, with an average total liquid-equivalent accumulation of 0.4 inches.

The snowless period of the year lasts for 7.9 months, from March 26 to November 24. The least snow falls around July 18, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall at Eagle Creek AirparksnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in1 in2 in3 in4 inFeb 10.4 inFeb 10.4 inJul 180.0 inJul 180.0 inNov 240.1 inNov 240.1 inMar 260.1 inMar 260.1 in
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day at Eagle Creek Airpark varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 21 minutes of daylight; the longest day is June 21, with 14 hours, 60 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Eagle Creek AirparkJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2014 hr, 60 minJun 2114 hr, 60 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 21 minDec 219 hr, 21 minDec 21nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 6:16 AM on June 14, and the latest sunrise is 2 hours, 1 minute later at 8:17 AM on November 4. The earliest sunset is at 5:20 PM on December 7, and the latest sunset is 3 hours, 57 minutes later at 9:17 PM on June 27.

Daylight saving time (DST) is observed at Eagle Creek Airpark during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time at Eagle Creek AirparkJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 146:16 AMJun 146:16 AM9:17 PMJun 279:17 PMJun 27Dec 75:20 PMDec 75:20 PM8:17 AMNov 48:17 AMNov 4Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnight
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

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.

Eagle Creek Airpark experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.8 months, from May 28 to September 21, during which time the comfort level is muggy, oppressive, or miserable at least 14% of the time. The muggiest day of the year is July 27, with muggy conditions 54% of the time.

The least muggy day of the year is February 10, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels at Eagle Creek AirparkmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Feb 100%Feb 100%Jul 2754%Jul 2754%May 2814%May 2814%Sep 2114%Sep 2114%oppressiveoppressivedrydrymuggymuggyhumidhumidcomfortablecomfortablemiserablemiserable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Eagle Creek Airpark experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 7.4 months, from October 10 to May 22, with average wind speeds of more than 4.9 miles per hour. The windiest day of the year is April 1, with an average hourly wind speed of 6.2 miles per hour.

The calmer time of year lasts for 4.6 months, from May 22 to October 10. The calmest day of the year is July 31, with an average hourly wind speed of 3.5 miles per hour.

Average Wind Speed

Average Wind Speed at Eagle Creek AirparkwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mph9 mph10 mphApr 16.2 mphApr 16.2 mphJul 313.5 mphJul 313.5 mphOct 104.9 mphOct 104.9 mphMay 224.9 mphMay 224.9 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction at Eagle Creek Airpark varies throughout the year.

The wind is most often from the south for 3.0 months, from March 30 to June 30 and for 3.6 months, from August 13 to December 2, with a peak percentage of 38% on November 14. The wind is most often from the west for 1.5 months, from June 30 to August 13 and for 3.9 months, from December 2 to March 30, with a peak percentage of 34% on July 20.

Wind Direction

Wind Direction at Eagle Creek AirparkWSWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%southeastwestnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Solar Energy

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 4.0 months, from April 30 to August 30, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is July 2, with an average of 6.9 kWh.

The darker period of the year lasts for 3.2 months, from November 5 to February 10, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest day of the year is December 17, with an average of 1.8 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Eagle Creek AirparkbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJul 26.9 kWhJul 26.9 kWhDec 171.8 kWhDec 171.8 kWhApr 305.8 kWhApr 305.8 kWhAug 305.8 kWhAug 305.8 kWhNov 52.8 kWhNov 52.8 kWhFeb 102.8 kWhFeb 102.8 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Eagle Creek Airpark are 39.830 deg latitude, -86.295 deg longitude, and 804 ft elevation.

The topography within 2 miles of Eagle Creek Airpark contains only modest variations in elevation, with a maximum elevation change of 144 feet and an average elevation above sea level of 799 feet. Within 10 miles contains only modest variations in elevation (600 feet). Within 50 miles also contains significant variations in elevation (794 feet).

The area within 2 miles of Eagle Creek Airpark is covered by artificial surfaces (75%) and trees (17%), within 10 miles by artificial surfaces (59%) and cropland (34%), and within 50 miles by cropland (74%) and trees (17%).

Data Sources

This report illustrates the typical weather at Eagle Creek Airpark, 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

Eagle Creek Airpark 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 Indianapolis International Airport, Indianapolis Executive Airport, Shelbyville Municipal Airport, Kokomo Municipal Airport, Monroe County Airport, Grissom Air Force Base / Peru, Purdue University Airport, and Logansport Cass County Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports 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.