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April Weather at RAAF Woomera Airfield South Australia, Australia

Daily high temperatures decrease by 8°F, from 81°F to 73°F, rarely falling below 65°F or exceeding 92°F.

Daily low temperatures decrease by 6°F, from 60°F to 54°F, rarely falling below 48°F or exceeding 68°F.

For reference, on January 24, the hottest day of the year, temperatures at RAAF Woomera Airfield typically range from 70°F to 94°F, while on July 7, the coldest day of the year, they range from 44°F to 62°F.

Average High and Low Temperature in April at RAAF Woomera Airfield

Average High and Low Temperature in April at RAAF Woomera AirfieldApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303040°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°F105°F105°FMarMayApr 181°FApr 181°F60°F60°FApr 3073°FApr 3073°F54°F54°FApr 1178°FApr 1178°F58°F58°FApr 2176°FApr 2176°F56°F56°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 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 at RAAF Woomera Airfield

Average Hourly Temperature in April at RAAF Woomera AirfieldApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMaycoldcoolcomfortablewarmhotcoldwarm
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.

Oberlin, Louisiana, United States (9,533 miles away) and Homerville, Georgia, United States (10,120 miles) are the far-away foreign places with temperatures most similar to RAAF Woomera Airfield (view comparison).

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The month of April at RAAF Woomera Airfield experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 28% throughout the month.

The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 74% of the time.

For reference, on May 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 30%, while on September 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 87%.

Cloud Cover Categories in April at RAAF Woomera Airfield

Cloud Cover Categories in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 172%Apr 172%Apr 3074%Apr 3074%Apr 1172%Apr 1172%Apr 2171%Apr 2171%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. At RAAF Woomera Airfield, the chance of a wet day over the course of April is essentially constant, remaining around 5% throughout.

For reference, the year's highest daily chance of a wet day is 9% on June 2, and its lowest chance is 4% on April 29.

Probability of Precipitation in April at RAAF Woomera Airfield

Probability of Precipitation in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%1%1%2%2%3%3%4%4%5%5%6%6%7%7%8%8%9%9%10%10%MarMayApr 294%Apr 294%Apr 15%Apr 15%Apr 115%Apr 115%Apr 215%Apr 215%rain
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 at RAAF Woomera Airfield is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.1 inches or falling below -0.0 inches.

The lowest average 31-day accumulation is 0.4 inches on April 29.

Average Monthly Rainfall in April at RAAF Woomera Airfield

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 April at RAAF Woomera Airfield, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 51 minutes, implying an average daily decrease of 1 minute, 45 seconds, and weekly decrease of 12 minutes, 16 seconds.

The shortest day of the month is April 30, with 10 hours, 54 minutes of daylight and the longest day is April 1, with 11 hours, 45 minutes of daylight.

Hours of Daylight and Twilight in April at RAAF Woomera Airfield

Hours of Daylight and Twilight in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMaydaydaydaydaynightApr 111 hr, 45 minApr 111 hr, 45 minApr 3010 hr, 54 minApr 3010 hr, 54 minApr 1611 hr, 18 minApr 1611 hr, 18 min
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 at RAAF Woomera Airfield is 7:37 AM on April 6 and the earliest sunrise is 59 minutes earlier at 6:37 AM on April 7.

The latest sunset is 7:18 PM on April 1 and the earliest sunset is 1 hour, 32 minutes earlier at 5:46 PM on April 30.

Daylight saving time (DST) ends at 2:00 AM on April 7, 2024, shifting sunrise and sunset to be an hour earlier.

For reference, on December 21, the longest day of the year, the Sun rises at 6:15 AM and sets 14 hours, 11 minutes later, at 8:26 PM, while on June 20, the shortest day of the year, it rises at 7:20 AM and sets 10 hours, 7 minutes later, at 5:28 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in April at RAAF Woomera Airfield

Sunrise & Sunset with Twilight and Daylight Saving Time in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMarMay6:37 AM6:37 AMApr 76:11 PMApr 76:11 PM6:52 AM6:52 AMApr 305:46 PMApr 305:46 PMDSTApr 7DSTApr 7SolarMidnightSolarMidnightSolarNoonSunriseSunset
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. The transitions to and from daylight saving time are indicated by the 'DST' labels.

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 April at RAAF Woomera Airfield

Solar Elevation and Azimuth in April at RAAF Woomera AirfieldApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay00101020202030304040500001010202030303040405060
northeastsouthwest
Solar elevation and azimuth over the course of April 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 April 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 April at RAAF Woomera Airfield

Moon Rise, Set & Phases in April at RAAF Woomera AirfieldApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 107:31 PMMar 107:31 PMMar 255:31 PMMar 255:31 PMApr 93:52 AMApr 93:52 AMApr 249:20 AMApr 249:20 AMMay 812:53 PMMay 812:53 PMMay 2311:24 PMMay 2311:24 PM6:45 AM6:45 AM7:51 PM7:51 PM7:29 PM7:29 PM8:04 AM8:04 AM6:51 AM6:51 AM6:24 PM6:24 PM5:24 PM5:24 PM6:48 AM6:48 AM6:49 AM6:49 AM5:33 PM5:33 PM5:01 PM5:01 PM7:41 AM7:41 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.
Apr 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
64%-1:57 PMSW11:47 PMSE6:23 AMN239,731 mi
2
50%-2:54 PMWSW-7:21 AMN236,481 mi
3
42%12:50 AMESE3:46 PMWSW-8:20 AMN233,094 mi
4
30%1:59 AMESE4:30 PMWSW-9:18 AMN229,790 mi
5
20%3:09 AMESE5:10 PMWSW-10:13 AMN226,849 mi
6
11%4:20 AMESE5:45 PMW-11:06 AMN224,574 mi
7
4%4:31 AME5:18 PMW-10:57 AMN223,242 mi
8
1%5:41 AME5:51 PMW-11:47 AMN223,050 mi
9
0%6:51 AME6:24 PMWNW-12:38 PMN224,074 mi
10
3%8:02 AMENE7:01 PMWNW-1:32 PMN226,242 mi
11
8%9:14 AMENE7:42 PMWNW-2:28 PMN229,344 mi
12
16%10:24 AMENE8:30 PMWNW-3:27 PMN233,072 mi
13
25%11:31 AMENE9:23 PMNW-4:27 PMN237,067 mi
14
35%12:31 PMNE10:20 PMWNW-5:26 PMN240,981 mi
15
46%1:23 PMENE11:21 PMWNW-6:22 PMN244,522 mi
16
50%2:06 PMENE--7:14 PMN247,476 mi
17
66%-12:21 AMWNW2:43 PMENE8:01 PMN249,718 mi
18
75%-1:19 AMWNW3:15 PMENE8:45 PMN251,198 mi
19
83%-2:16 AMWNW3:43 PMENE9:26 PMN251,934 mi
20
89%-3:11 AMW4:08 PME10:05 PMN251,987 mi
21
95%-4:04 AMW4:33 PME10:44 PMN251,450 mi
22
98%-4:58 AMW4:58 PME11:23 PMN250,427 mi
23
99%-5:52 AMW5:24 PMESE--
24
100%-6:48 AMWSW5:52 PMESE12:03 AMN249,021 mi
25
100%-7:47 AMWSW6:25 PMESE12:47 AMN247,321 mi
26
97%-8:48 AMWSW7:03 PMESE1:33 AMN245,394 mi
27
93%-9:50 AMWSW7:49 PMESE2:24 AMN243,285 mi
28
86%-10:52 AMWSW8:42 PMSE3:19 AMN241,023 mi
29
78%-11:50 AMWSW9:42 PMESE4:16 AMN238,630 mi
30
68%-12:42 PMWSW10:48 PMESE5:14 AMN236,143 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 at RAAF Woomera Airfield is essentially constant during April, remaining around 1% throughout.

For reference, on January 22, the muggiest day of the year, there are muggy conditions 3% of the time, while on May 12, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in April at RAAF Woomera Airfield

Humidity Comfort Levels in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 11%Apr 11%Apr 300%Apr 300%Apr 111%Apr 111%Apr 211%Apr 211%drydrycomfortablecomfortablehumidhumidmuggymuggy
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 at RAAF Woomera Airfield is gradually decreasing during April, decreasing from 9.8 miles per hour to 8.8 miles per hour over the course of the month.

For reference, on November 25, the windiest day of the year, the daily average wind speed is 12.0 miles per hour, while on May 18, the calmest day of the year, the daily average wind speed is 8.8 miles per hour.

Average Wind Speed in April at RAAF Woomera Airfield

Average Wind Speed in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphMarMayApr 19.8 mphApr 19.8 mphApr 308.8 mphApr 308.8 mphApr 119.3 mphApr 119.3 mph
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 at RAAF Woomera Airfield throughout April is predominantly from the south, with a peak proportion of 48% on April 1.

Wind Direction in April at RAAF Woomera Airfield

Wind Direction in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMaywestsoutheastnorth
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).

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 at RAAF Woomera Airfield 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 at RAAF Woomera Airfield

Time Spent in Various Temperature Bands and the Growing Season in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMay100%Apr 16100%Apr 16coldcoolcomfortablewarmhotswelteringvery cold
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 at RAAF Woomera Airfield are rapidly increasing during April, increasing by 493°F, from 5,188°F to 5,681°F, over the course of the month.

Growing Degree Days in April at RAAF Woomera Airfield

Growing Degree Days in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930304,800°F4,800°F5,000°F5,000°F5,200°F5,200°F5,400°F5,400°F5,600°F5,600°F5,800°F5,800°F6,000°F6,000°FMarMayApr 15,188°FApr 15,188°FApr 305,681°FApr 305,681°FApr 115,378°FApr 115,378°F
The average growing degree days accumulated over the course of April, 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 at RAAF Woomera Airfield is decreasing during April, falling by 1.3 kWh, from 5.5 kWh to 4.3 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April at RAAF Woomera Airfield

Average Daily Incident Shortwave Solar Energy in April at RAAF Woomera AirfieldApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMarMayApr 15.5 kWhApr 15.5 kWhApr 304.3 kWhApr 304.3 kWhApr 115.1 kWhApr 115.1 kWh
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 RAAF Woomera Airfield are -31.149 deg latitude, 136.812 deg longitude, and 551 ft elevation.

The topography within 2 miles of RAAF Woomera Airfield contains only modest variations in elevation, with a maximum elevation change of 194 feet and an average elevation above sea level of 506 feet. Within 10 miles also contains only modest variations in elevation (348 feet). Within 50 miles contains only modest variations in elevation (797 feet).

The area within 2 miles of RAAF Woomera Airfield is covered by sparse vegetation (97%), within 10 miles by sparse vegetation (97%), and within 50 miles by sparse vegetation (77%) and water (12%).

This report illustrates the typical weather at RAAF Woomera Airfield, 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

RAAF Woomera Airfield has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.

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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