Average Weather in April in Copeland Oklahoma, United States
Daily high temperatures increase by 8°F, from 67°F to 75°F, rarely falling below 53°F or exceeding 85°F.
Daily low temperatures increase by 8°F, from 45°F to 54°F, rarely falling below 33°F or exceeding 66°F.
For reference, on July 22, the hottest day of the year, temperatures in Copeland typically range from 72°F to 93°F, while on January 6, the coldest day of the year, they range from 28°F to 47°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 Copeland experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 42% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 40% on April 15.
The clearest day of the month is April 15, with clear, mostly clear, or partly cloudy conditions 60% of the time.
For reference, on February 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Copeland, the chance of a wet day over the course of April is rapidly increasing, starting the month at 29% and ending it at 37%.
For reference, the year's highest daily chance of a wet day is 44% on May 21, and its lowest chance is 13% on January 12.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Copeland is rapidly increasing, starting the month at 3.5 inches, when it rarely exceeds 6.2 inches or falls below 1.4 inches, and ending the month at 4.8 inches, when it rarely exceeds 8.2 inches or falls below 2.1 inches.
Average Monthly Rainfall in April
Over the course of April in Copeland, 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, 4 minutes, implying an average daily increase of 2 minutes, 12 seconds, and weekly increase of 15 minutes, 23 seconds.
The shortest day of the month is April 1, with 12 hours, 36 minutes of daylight and the longest day is April 30, with 13 hours, 40 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Copeland is 7:05 AM on April 1 and the earliest sunrise is 38 minutes earlier at 6:26 AM on April 30.
The earliest sunset is 7:41 PM on April 1 and the latest sunset is 25 minutes later at 8:06 PM on April 30.
Daylight saving time is observed in Copeland 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 6:01 AM and sets 14 hours, 40 minutes later, at 8:41 PM, while on December 21, the shortest day of the year, it rises at 7:27 AM and sets 9 hours, 39 minutes later, at 5:07 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Copeland is increasing during April, rising from 2% to 11% over the course of the month.
For reference, on July 6, the muggiest day of the year, there are muggy conditions 84% of the time, while on December 22, 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 Copeland is gradually decreasing during April, decreasing from 10.6 miles per hour to 9.6 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 10.6 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 6.6 miles per hour.
The highest daily average wind speed during April is 10.6 miles per hour on April 1.
Average Wind Speed in April
Wind Direction in April
The growing season in Copeland typically lasts for 6.9 months (212 days), from around April 1 to around October 30, rarely starting before March 11 or after April 20, and rarely ending before October 11 or after November 20.
During April in Copeland, the chance that a given day is within the growing season is rapidly increasing rising from 50% to 99% 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 Copeland are increasing during April, increasing by 321°F, from 286°F to 607°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Copeland is gradually increasing during April, rising by 0.8 kWh, from 5.3 kWh to 6.1 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 Copeland are 36.656 deg latitude, -94.828 deg longitude, and 797 ft elevation.
The topography within 2 miles of Copeland contains only modest variations in elevation, with a maximum elevation change of 217 feet and an average elevation above sea level of 814 feet. Within 10 miles also contains only modest variations in elevation (404 feet). Within 50 miles contains only modest variations in elevation (1,122 feet).
The area within 2 miles of Copeland is covered by cropland (43%), trees (32%), and water (25%), within 10 miles by cropland (54%) and trees (25%), and within 50 miles by cropland (63%) and trees (30%).
This report illustrates the typical weather in Copeland 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 Copeland.
For each station, the records are corrected for the elevation difference between that station and Copeland 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 Copeland is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Copeland and a given station.
The stations contributing to this reconstruction are: Grove Municipal Airport (86%, 10 kilometers, southeast); Joplin Regional Airport (5%, 62 kilometers, northeast); Claremore Regional Airport (4.5%, 71 kilometers, southwest); and Coffeyville Municipal Airport (3.7%, 82 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .