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July Weather in Harper Liberia

Daily high temperatures are around 80°F, rarely falling below 78°F or exceeding 83°F.

Daily low temperatures are around 75°F, rarely falling below 72°F or exceeding 77°F.

For reference, on March 27, the hottest day of the year, temperatures in Harper typically range from 75°F to 88°F, while on January 10, the coldest day of the year, they range from 73°F to 86°F.

Average High and Low Temperature in July in Harper

Average High and Low Temperature in July in HarperJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313172°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°FJunAugJul 181°FJul 181°F75°F75°FJul 3180°FJul 3180°F74°F74°FJul 1181°FJul 1181°F75°F75°FJul 2180°FJul 2180°F74°F74°F
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 July. 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 July in Harper

Average Hourly Temperature in July in HarperJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMJunAugcomfortablewarm
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Capira, Panama (4,962 miles away) and Barrancabermeja, Colombia (4,553 miles) are the far-away foreign places with temperatures most similar to Harper (view comparison).

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The month of July in Harper experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 48% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 47% on July 22.

The clearest day of the month is July 22, with clear, mostly clear, or partly cloudy conditions 53% of the time.

For reference, on April 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 81%, while on December 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 64%.

Cloud Cover Categories in July in Harper

Cloud Cover Categories in July in HarperJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAugApr 2319%Apr 2319%Jul 151%Jul 151%Jul 3151%Jul 3151%Jul 1152%Jul 1152%Jul 2153%Jul 2153%clearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Harper, the chance of a wet day over the course of July is very rapidly decreasing, starting the month at 48% and ending it at 27%.

For reference, the year's highest daily chance of a wet day is 72% on June 1, and its lowest chance is 15% on January 16.

Probability of Precipitation in July in Harper

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 July in Harper is very rapidly decreasing, starting the month at 7.8 inches, when it rarely exceeds 15.0 inches or falls below 2.6 inches, and ending the month at 2.8 inches, when it rarely exceeds 6.6 inches or falls below 0.4 inches.

Average Monthly Rainfall in July in Harper

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 snowfall.

Over the course of July in Harper, the length of the day is essentially constant. The shortest day of the month is July 31, with 12 hours, 18 minutes of daylight and the longest day is July 1, with 12 hours, 22 minutes of daylight.

Hours of Daylight and Twilight in July in Harper

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 earliest sunrise of the month in Harper is 6:23 AM on July 1 and the latest sunrise is 4 minutes later at 6:27 AM on July 31.

The earliest sunset is 6:45 PM on July 1 and the latest sunset is 1 minute, 26 seconds later at 6:47 PM on July 18.

Daylight saving time is not observed in Harper during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:21 AM and sets 12 hours, 23 minutes later, at 6:43 PM, while on December 21, the shortest day of the year, it rises at 6:33 AM and sets 11 hours, 52 minutes later, at 6:25 PM.

Sunrise & Sunset with Twilight in July in Harper

The solar day over the course of July. 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.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in July in Harper

Solar Elevation and Azimuth in July in HarperJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMJunAug00101020202030304040505050606070708000010102020303030404050506060607070
northeastsouthwest
Solar elevation and azimuth over the course of July 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for July 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in July in Harper

Moon Rise, Set & Phases in July in HarperJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJunAugJun 612:38 PMJun 612:38 PMJun 221:09 AMJun 221:09 AMJul 510:58 PMJul 510:58 PMJul 2110:18 AMJul 2110:18 AMAug 411:14 AMAug 411:14 AMAug 196:26 PMAug 196:26 PM6:03 AM6:03 AM6:51 PM6:51 PM6:26 PM6:26 PM6:36 AM6:36 AM5:48 AM5:48 AM6:37 PM6:37 PM6:11 PM6:11 PM6:23 AM6:23 AM6:25 AM6:25 AM7:03 PM7:03 PM6:44 PM6:44 PM7:02 AM7:02 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Jul 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
24%2:07 AMENE2:45 PMWNW-8:24 AMN231,913 mi
2
15%2:58 AMENE3:41 PMWNW-9:18 AMN233,329 mi
3
7%3:52 AMENE4:39 PMWNW-10:15 AMN235,069 mi
4
3%4:50 AMENE5:39 PMWNW-11:14 AMN237,121 mi
5
0%5:48 AMENE6:37 PMWNW-12:13 PMN239,432 mi
6
0%6:46 AMENE7:32 PMWNW-1:10 PMN241,903 mi
7
3%7:41 AMENE8:22 PMWNW-2:03 PMN244,394 mi
8
7%8:32 AMENE9:07 PMWNW-2:51 PMN246,734 mi
9
13%9:19 AMENE9:49 PMWNW-3:35 PMN248,743 mi
10
21%10:03 AME10:28 PMW-4:16 PMN250,251 mi
11
29%10:44 AME11:06 PMW-4:55 PMS251,107 mi
12
39%11:25 AME11:43 PMW-5:34 PMS251,202 mi
13
50%12:06 PME--6:13 PMS250,477 mi
14
58%-12:20 AMW12:48 PMESE6:53 PMS248,936 mi
15
68%-1:00 AMWSW1:33 PMESE7:37 PMS246,647 mi
16
77%-1:43 AMWSW2:21 PMESE8:25 PMS243,751 mi
17
85%-2:31 AMWSW3:14 PMESE9:18 PMS240,450 mi
18
92%-3:24 AMWSW4:11 PMESE10:16 PMS237,002 mi
19
97%-4:21 AMWSW5:11 PMESE11:17 PMS233,699 mi
20
99%-5:22 AMWSW6:11 PMESE--
21
100%-6:23 AMWSW7:10 PMESE12:18 AMS230,829 mi
22
99%-7:23 AMWSW8:05 PMESE1:18 AMS228,632 mi
23
96%-8:21 AMWSW8:56 PMESE2:14 AMS227,258 mi
24
90%-9:15 AMW9:44 PME3:06 AMS226,751 mi
25
82%-10:06 AMW10:31 PME3:55 AMS227,058 mi
26
72%-10:57 AMW11:17 PME4:44 AMS228,052 mi
27
60%-11:48 AMWNW-5:32 AMN229,571 mi
28
50%12:05 AMENE12:41 PMWNW-6:21 AMN231,450 mi
29
37%12:55 AMENE1:36 PMWNW-7:14 AMN233,547 mi
30
26%1:47 AMENE2:33 PMWNW-8:09 AMN235,759 mi
31
17%2:43 AMENE3:31 PMWNW-9:07 AMN238,016 mi

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 Harper is essentially constant during July, remaining around 100% throughout.

For reference, on March 23, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 15, the least muggy day of the year, there are muggy conditions 96% of the time.

Humidity Comfort Levels in July in Harper

Humidity Comfort Levels in July in HarperJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JunAugJul 1100%Jul 1100%Jul 31100%Jul 31100%Jul 11100%Jul 11100%Jul 21100%Jul 21100%miserablemiserableoppressiveoppressivemuggymuggy
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Harper is essentially constant during July, remaining within 0.1 miles per hour of 10.2 miles per hour throughout.

For reference, on August 17, the windiest day of the year, the daily average wind speed is 10.5 miles per hour, while on December 28, the calmest day of the year, the daily average wind speed is 6.2 miles per hour.

Average Wind Speed in July in Harper

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 Harper throughout July is predominantly from the south, with a peak proportion of 97% on July 1.

Wind Direction in July in Harper

Wind Direction in July in HarperJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JunAugsouth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Harper 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 Harper is gradually decreasing during July, falling by 2°F, from 81°F to 79°F, over the course of the month.

Average Water Temperature in July in Harper

Average Water Temperature in July in HarperJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313177°F77°F78°F78°F79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°FJunAugJul 181°FJul 181°FJul 3179°FJul 3179°FJul 1180°FJul 1180°FJul 2180°FJul 2180°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Harper 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 July in Harper

Time Spent in Various Temperature Bands and the Growing Season in July in HarperJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAug100%Jul 16100%Jul 16100%Jul 2100%Jul 2comfortablewarmhot
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 percentage of time spent in various temperature bands. 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 Harper are rapidly increasing during July, increasing by 821°F, from 5,432°F to 6,253°F, over the course of the month.

Growing Degree Days in July in Harper

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

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 Harper is essentially constant during July, remaining within 0.1 kWh of 5.3 kWh throughout.

Average Daily Incident Shortwave Solar Energy in July in Harper

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Harper are 4.378 deg latitude, -7.711 deg longitude, and 46 ft elevation.

The topography within 2 miles of Harper contains only modest variations in elevation, with a maximum elevation change of 135 feet and an average elevation above sea level of 14 feet. Within 10 miles also contains only modest variations in elevation (249 feet). Within 50 miles contains only modest variations in elevation (1,434 feet).

The area within 2 miles of Harper is covered by water (47%), trees (20%), and grassland (17%), within 10 miles by water (61%) and trees (13%), and within 50 miles by water (66%) and trees (14%).

This report illustrates the typical weather in Harper, 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, Tabou, in our network suitable to be used as a proxy for the historical temperature and dew point records of Harper.

At a distance of 38 kilometers from Harper, 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 Harper 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.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

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.

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