Average Weather in April in Calidonia Panama
Daily high temperatures decrease by 4°F, from 92°F to 88°F, rarely falling below 84°F or exceeding 96°F.
Daily low temperatures are around 73°F, rarely falling below 70°F or exceeding 75°F.
For reference, on March 18, the hottest day of the year, temperatures in Calidonia typically range from 72°F to 92°F, while on January 15, the coldest day of the year, they range from 68°F to 87°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 Calidonia experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 61% to 80%.
The clearest day of the month is April 1, with clear, mostly clear, or partly cloudy conditions 39% of the time.
For reference, on June 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 93%, while on January 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 56%.
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 Calidonia, the chance of a wet day over the course of April is very rapidly increasing, starting the month at 11% and ending it at 30%.
For reference, the year's highest daily chance of a wet day is 52% on October 24, and its lowest chance is 5% on February 13.
Probability of Precipitation in April
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during April in Calidonia is very rapidly increasing, starting the month at 1.4 inches, when it rarely exceeds 3.1 inches or falls below 0.1 inches, and ending the month at 4.9 inches, when it rarely exceeds 9.0 inches or falls below 1.6 inches.
Average Monthly Rainfall in April
Over the course of April in Calidonia, the length of the day is essentially constant. The shortest day of the month is April 1, with 12 hours, 12 minutes of daylight and the longest day is April 30, with 12 hours, 24 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Calidonia is 6:23 AM on April 1 and the earliest sunrise is 13 minutes earlier at 6:10 AM on April 30.
The latest sunset is 6:35 PM on April 1 and the earliest sunset is 53 seconds earlier at 6:34 PM on April 21.
Daylight saving time is not observed in Calidonia during 2018.
For reference, on June 21, the longest day of the year, the Sun rises at 6:09 AM and sets 12 hours, 35 minutes later, at 6:45 PM, while on December 21, the shortest day of the year, it rises at 6:33 AM and sets 11 hours, 40 minutes later, at 6:13 PM.
Sunrise & Sunset with Twilight in April
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.
The chance that a given day will be muggy in Calidonia is gradually increasing during April, rising from 95% to 99% over the course of the month.
For reference, on May 31, the muggiest day of the year, there are muggy conditions 100% of the time, while on February 27, the least muggy day of the year, there are muggy conditions 91% of the time.
Humidity Comfort Levels in April
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 in Calidonia is rapidly decreasing during April, decreasing from 8.5 miles per hour to 6.0 miles per hour over the course of the month.
For reference, on February 27, the windiest day of the year, the daily average wind speed is 10.0 miles per hour, while on July 20, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
Average Wind Speed in April
Wind Direction in April
Calidonia is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Calidonia is essentially constant during April, remaining around 84°F throughout.
The highest average surface water temperature during April is 84°F on April 24.
Average Water Temperature in April
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).
Temperatures in Calidonia are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in April
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.
The average accumulated growing degree days in Calidonia are rapidly increasing during April, increasing by 875°F, from 2,583°F to 3,458°F, over the course of the month.
Growing Degree Days in April
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 in Calidonia is rapidly decreasing during April, falling by 1.6 kWh, from 6.5 kWh to 4.9 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 Calidonia are 7.959 deg latitude, -81.390 deg longitude, and 646 ft elevation.
The topography within 2 miles of Calidonia contains very significant variations in elevation, with a maximum elevation change of 1,581 feet and an average elevation above sea level of 700 feet. Within 10 miles contains very significant variations in elevation (2,054 feet). Within 50 miles contains large variations in elevation (7,290 feet).
The area within 2 miles of Calidonia is covered by trees (51%), grassland (32%), and shrubs (17%), within 10 miles by trees (49%) and grassland (26%), and within 50 miles by water (44%) and trees (22%).
This report illustrates the typical weather in Calidonia 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 is only a single weather station, David Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Calidonia.
At a distance of 125 kilometers from Calidonia, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Calidonia according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
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.
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.