Average Weather in April in New Athens Illinois, United States
Daily high temperatures increase by 10°F, from 63°F to 72°F, rarely falling below 48°F or exceeding 83°F.
Daily low temperatures increase by 9°F, from 44°F to 53°F, rarely falling below 32°F or exceeding 64°F.
For reference, on July 20, the hottest day of the year, temperatures in New Athens typically range from 70°F to 89°F, while on January 22, the coldest day of the year, they range from 26°F to 41°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. 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 April
Qubadlı, Azerbaijan (6,410 miles away); Xi’an, China (7,287 miles); and Daegu, South Korea (6,759 miles) are the far-away foreign places with temperatures most similar to New Athens (view comparison).
The month of April in New Athens experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 45% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 44% on April 15.
The clearest day of the month is April 15, with clear, mostly clear, or partly cloudy conditions 56% of the time.
For reference, on February 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 53%, while on August 26, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.
Cloud Cover Categories in April
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 New Athens, the chance of a wet day over the course of April is increasing, starting the month at 33% and ending it at 38%.
For reference, the year's highest daily chance of a wet day is 39% on May 13, and its lowest chance is 17% on January 28.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in New Athens is increasing, starting the month at 3.5 inches, when it rarely exceeds 5.8 inches or falls below 1.8 inches, and ending the month at 4.2 inches, when it rarely exceeds 8.1 inches or falls below 1.4 inches.
Average Monthly Rainfall in April
Over the course of April in New Athens, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 8 minutes, implying an average daily increase of 2 minutes, 20 seconds, and weekly increase of 16 minutes, 22 seconds.
The shortest day of the month is April 1, with 12 hours, 38 minutes of daylight and the longest day is April 30, with 13 hours, 46 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in New Athens is 6:44 AM on April 1 and the earliest sunrise is 41 minutes earlier at 6:03 AM on April 30.
The earliest sunset is 7:22 PM on April 1 and the latest sunset is 27 minutes later at 7:50 PM on April 30.
Daylight saving time is observed in New Athens during 2018, but it neither starts nor ends during April, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:36 AM and sets 14 hours, 50 minutes later, at 8:26 PM, while on December 21, the shortest day of the year, it rises at 7:12 AM and sets 9 hours, 30 minutes later, at 4:42 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in New Athens is increasing during April, rising from 1% to 6% over the course of the month.
For reference, on July 23, the muggiest day of the year, there are muggy conditions 74% of the time, while on December 19, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in April
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in New Athens is decreasing during April, decreasing from 10.2 miles per hour to 9.1 miles per hour over the course of the month.
For reference, on April 1, the windiest day of the year, the daily average wind speed is 10.2 miles per hour, while on July 27, the calmest day of the year, the daily average wind speed is 5.8 miles per hour.
The highest daily average wind speed during April is 10.2 miles per hour on April 1.
Average Wind Speed in April
Wind Direction in April
The growing season in New Athens typically lasts for 7.0 months (213 days), from around April 3 to around November 2, rarely starting before March 14 or after April 21, and rarely ending before October 15 or after November 20.
During April in New Athens, the chance that a given day is within the growing season is very rapidly increasing rising from 46% to 98% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in April
The average accumulated growing degree days in New Athens are increasing during April, increasing by 262°F, from 162°F to 424°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in New Athens is gradually increasing during April, rising by 1.0 kWh, from 5.0 kWh to 6.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of New Athens are 38.326 deg latitude, -89.877 deg longitude, and 407 ft elevation.
The topography within 2 miles of New Athens contains only modest variations in elevation, with a maximum elevation change of 102 feet and an average elevation above sea level of 394 feet. Within 10 miles also contains only modest variations in elevation (266 feet). Within 50 miles contains only modest variations in elevation (997 feet).
The area within 2 miles of New Athens is covered by cropland (36%), trees (25%), artificial surfaces (21%), and herbaceous vegetation (14%), within 10 miles by cropland (77%) and trees (13%), and within 50 miles by cropland (56%) and trees (30%).
This report illustrates the typical weather in New Athens 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 New Athens.
For each station, the records are corrected for the elevation difference between that station and New Athens 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 New Athens is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between New Athens and a given station.
The stations contributing to this reconstruction are: Flying L Airport (37%, 25 kilometers, north); Sparta Community Airport-Hunter Field (36%, 25 kilometers, southeast); Saint Louis Downtown - Parks Airport (21%, 37 kilometers, northwest); and Farmington Regional Airport (6%, 79 kilometers, southwest).
Time zones for aiports and weather stations are provided by AskGeo.com .