Average Weather in April in Anderson Indiana, United States
Daily high temperatures increase by 11°F, from 57°F to 68°F, rarely falling below 42°F or exceeding 80°F.
Daily low temperatures increase by 10°F, from 38°F to 49°F, rarely falling below 27°F or exceeding 61°F.
For reference, on July 19, the hottest day of the year, temperatures in Anderson typically range from 66°F to 84°F, while on January 29, the coldest day of the year, they range from 21°F to 34°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
The month of April in Anderson experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 51% throughout the month.
The clearest day of the month is April 25, with clear, mostly clear, or partly cloudy conditions 50% of the time.
For reference, on January 2, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 61%, while on August 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Anderson, the chance of a wet day over the course of April is gradually increasing, starting the month at 33% and ending it at 36%.
For reference, the year's highest daily chance of a wet day is 41% on June 15, and its lowest chance is 20% on February 8.
Over the course of April in Anderson, the chance of a day with only rain increases from 31% to 36%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Anderson is increasing, starting the month at 3.2 inches, when it rarely exceeds 4.8 inches or falls below 1.7 inches, and ending the month at 3.8 inches, when it rarely exceeds 6.1 inches or falls below 1.9 inches.
Average Monthly Rainfall in April
Over the course of April in Anderson, 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, 12 minutes, implying an average daily increase of 2 minutes, 30 seconds, and weekly increase of 17 minutes, 28 seconds.
The shortest day of the month is April 1, with 12 hours, 41 minutes of daylight and the longest day is April 30, with 13 hours, 53 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Anderson is 7:26 AM on April 1 and the earliest sunrise is 43 minutes earlier at 6:43 AM on April 30.
The earliest sunset is 8:07 PM on April 1 and the latest sunset is 30 minutes later at 8:36 PM on April 30.
Daylight saving time is observed in Anderson 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 6:13 AM and sets 15 hours, 2 minutes later, at 9:15 PM, while on December 21, the shortest day of the year, it rises at 8:01 AM and sets 9 hours, 19 minutes later, at 5:20 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Anderson is essentially constant during April, remaining within 1% of 1% throughout.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 52% of the time, while on November 18, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in April
The average hourly wind speed in Anderson is decreasing during April, decreasing from 12.4 miles per hour to 11.1 miles per hour over the course of the month.
For reference, on January 15, the windiest day of the year, the daily average wind speed is 12.5 miles per hour, while on July 31, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.
The highest daily average wind speed during April is 12.4 miles per hour on April 2.
Average Wind Speed in April
Wind Direction in April
The growing season in Anderson typically lasts for 6.2 months (189 days), from around April 14 to around October 20, rarely starting before March 27 or after May 2, and rarely ending before October 1 or after November 7.
During April in Anderson, the chance that a given day is within the growing season is very rapidly increasing rising from 18% to 88% 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 Anderson are gradually increasing during April, increasing by 174°F, from 79°F to 254°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Anderson is increasing during April, rising by 1.0 kWh, from 4.8 kWh to 5.8 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 Anderson are 40.105 deg latitude, -85.680 deg longitude, and 879 ft elevation.
The topography within 2 miles of Anderson is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 869 feet. Within 10 miles is essentially flat (266 feet). Within 50 miles contains only modest variations in elevation (922 feet).
The area within 2 miles of Anderson is covered by artificial surfaces (91%), within 10 miles by cropland (89%), and within 50 miles by cropland (87%).
This report illustrates the typical weather in Anderson 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 Anderson.
For each station, the records are corrected for the elevation difference between that station and Anderson 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 Anderson is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Anderson and a given station.
The stations contributing to this reconstruction are: Delaware County Regional Airport (43%, 28 kilometers, northeast); Marion Municipal Airport (24%, 42 kilometers, north); Indianapolis Executive Airport (19%, 49 kilometers, west); and Shelbyville Municipal Airport (14%, 60 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .