1. WeatherSpark.com
  2. United States
  3. Oklahoma
  4. Panama
  5. April

Average Weather in April in Panama Oklahoma, United States

Daily high temperatures increase by 7°F, from 70°F to 77°F, rarely falling below 56°F or exceeding 85°F.

Daily low temperatures increase by 8°F, from 48°F to 56°F, rarely falling below 36°F or exceeding 66°F.

For reference, on July 24, the hottest day of the year, temperatures in Panama typically range from 73°F to 94°F, while on January 7, the coldest day of the year, they range from 31°F to 51°F.

Average High and Low Temperature in April

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 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

Average Hourly Temperature in April in Panama1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM4 AM8 AM12 PM4 PM8 PM12 AMMarMayvery coldcoldcoldcoolcomfortablewarm
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 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.

’Aïn el Bell, Algeria (5,297 miles away); Kafr Takhārīm, Syria (6,604 miles); and Maymana, Afghanistan (7,358 miles) are the far-away foreign places with temperatures most similar to Panama (view comparison).

Clouds

The month of April in Panama experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 40% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 39% on April 15.

The clearest day of the month is April 15, with clear, mostly clear, or partly cloudy conditions 61% of the time.

For reference, on February 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on October 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.

Cloud Cover Categories in April

Cloud Cover Categories in April in Panama181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayFeb 1651%Feb 1651%Apr 158%Apr 158%Apr 3060%Apr 3060%Apr 1160%Apr 1160%Apr 2161%Apr 2161%clearmostly clearpartly cloudymostly cloudyovercast
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. In Panama, the chance of a wet day over the course of April is very rapidly increasing, starting the month at 29% and ending it at 38%.

For reference, the year's highest daily chance of a wet day is 43% on May 21, and its lowest chance is 19% on January 11.

Probability of Precipitation in April

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 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 Panama is rapidly increasing, starting the month at 3.9 inches, when it rarely exceeds 6.3 inches or falls below 1.7 inches, and ending the month at 5.2 inches, when it rarely exceeds 8.8 inches or falls below 2.0 inches.

Average Monthly Rainfall in April

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.

Sun

Over the course of April in Panama, 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, 0 minutes, implying an average daily increase of 2 minutes, 5 seconds, and weekly increase of 14 minutes, 33 seconds.

The shortest day of the month is April 1, with 12 hours, 35 minutes of daylight and the longest day is April 30, with 13 hours, 35 minutes of daylight.

Hours of Daylight and Twilight in April

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 latest sunrise of the month in Panama is 7:05 AM on April 1 and the earliest sunrise is 37 minutes earlier at 6:28 AM on April 30.

The earliest sunset is 7:40 PM on April 1 and the latest sunset is 24 minutes later at 8:03 PM on April 30.

Daylight saving time is observed in Panama 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 6:04 AM and sets 14 hours, 32 minutes later, at 8:36 PM, while on December 21, the shortest day of the year, it rises at 7:23 AM and sets 9 hours, 47 minutes later, at 5:10 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in April

The solar day over the course of April. 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.

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.

The chance that a given day will be muggy in Panama is rapidly increasing during April, rising from 2% to 14% over the course of the month.

For reference, on July 22, the muggiest day of the year, there are muggy conditions 87% of the time, while on January 12, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in April

Humidity Comfort Levels in April in Panama181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%10%20%30%40%50%60%70%80%90%100%MarMayApr 12%Apr 12%Apr 3014%Apr 3014%Apr 113%Apr 113%Apr 217%Apr 217%muggymuggyhumidhumiddrydryoppressiveoppressivecomfortablecomfortable
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 in Panama is gradually decreasing during April, decreasing from 7.3 miles per hour to 6.6 miles per hour over the course of the month.

For reference, on March 23, the windiest day of the year, the daily average wind speed is 7.3 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 4.5 miles per hour.

Average Wind Speed in April

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The hourly average wind direction in Panama throughout April is predominantly from the south, with a peak proportion of 50% on April 30.

Wind Direction in April

Wind Direction in April in Panama181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMaysouthnortheastwest
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).

Growing Season

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).

The growing season in Panama typically lasts for 7.5 months (229 days), from around March 23 to around November 7, rarely starting before February 28 or after April 16, and rarely ending before October 18 or after November 28.

The month of April in Panama is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly increasing from 68% to 100% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in April

Time Spent in Various Temperature Bands and the Growing Season in April in Panamagrowing season181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMay68%Apr 168%Apr 1100%Apr 30100%Apr 3084%Apr 1184%Apr 1195%Apr 2195%Apr 2150%Mar 2350%Mar 23very coldcoldcoolcomfortablewarmhotfreezing
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

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 Panama are increasing during April, increasing by 364°F, from 349°F to 712°F, over the course of the month.

Growing Degree Days in April

The average growing degree days accumulated over the course of April, with 25th to 75th and 10th to 90th percentile bands.

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 in Panama is gradually increasing during April, rising by 0.8 kWh, from 5.4 kWh to 6.2 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April

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 Panama are 35.167 deg latitude, -94.672 deg longitude, and 449 ft elevation.

The topography within 2 miles of Panama contains only modest variations in elevation, with a maximum elevation change of 121 feet and an average elevation above sea level of 441 feet. Within 10 miles contains only modest variations in elevation (1,995 feet). Within 50 miles also contains large variations in elevation (2,329 feet).

The area within 2 miles of Panama is covered by cropland (83%) and trees (14%), within 10 miles by cropland (72%) and trees (24%), and within 50 miles by trees (59%) and cropland (34%).

Data Sources

This report illustrates the typical weather in Panama 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 Panama.

For each station, the records are corrected for the elevation difference between that station and Panama 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 Panama is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Panama and a given station.

The stations contributing to this reconstruction are: Robert S Kerr Airport (50%, 17 kilometers, south); Sallisaw Municipal Airport (19%, 32 kilometers, north); Fort Smith Municipal Airport (18%, 34 kilometers, northeast); and Stigler Regional Airport (13%, 41 kilometers, west).

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.

Disclaimer

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.