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August 2021 Weather History at USAF Andersen Air Force Base Guam

This report shows the past weather for USAF Andersen Air Force Base, providing a weather history for August 2021. It features all historical weather data series we have available, including the USAF Andersen Air Force Base temperature history for August 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

USAF Andersen Air Force Base Temperature History August 2021

History:20232022JFMAMJJAugSOND20202019
Temperature history in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313172°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°FJulSep
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Hourly Temperature in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSepwarmhot
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 hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Cloud Cover in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Daily Precipitation in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Daily Precipitation in August 2021 at USAF Andersen Air Force Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inJulSep
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Observed Weather in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Sun, Aug 1 Heavy Rain, Showers of Heavy Rain, Rain, Showers of Rain, Light Rain, Showers of Light Rain, Drizzle1.06 in+RA, +SHRA, RA, SHRA, -RA, -SHRA, DZ
Mon, Aug 2 Thunderstorm with Heavy Rain, Thunderstorm with Rain, Heavy Rain, Showers of Heavy Rain, Rain, Showers of Rain, Light Rain, Showers of Light Rain, Mist1.91 in+TSRA, TSRA, +RA, +SHRA, RA, SHRA, -RA, -SHRA, BR
Tue, Aug 3 Heavy Rain, Showers of Rain, Light Rain, Showers of Light Rain, Light Drizzle, Mist, Showers in the Vicinity0.43 in+RA, SHRA, -RA, -SHRA, -DZ, BR, VCSH
Fri, Aug 6 Light Rain, Showers of Light Rain0.29 in-RA, -SHRA
Sat, Aug 7 Thunderstorm in the Vicinity, Showers of Heavy Rain, Showers of Rain, Light Rain, Showers of Light Rain, Mist1.74 inVCTS, +SHRA, SHRA, -RA, -SHRA, BR
Sun, Aug 8 Light Rain, Showers of Light Rain0.03 in-RA, -SHRA
Mon, Aug 9 Light Rain, Showers of Light Rain0.11 in-RA, -SHRA
Tue, Aug 10 Showers of Heavy Rain, Showers of Light Rain0.24 in+SHRA, -SHRA
Wed, Aug 11 Rain, Showers of Rain, Light Rain, Showers of Light Rain0.27 inRA, SHRA, -RA, -SHRA
Thu, Aug 12 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Showers of Heavy Rain, Showers of Rain, Light Rain, Showers of Light Rain1.88 in+TSRA, -TSRA, TSRA, +SHRA, SHRA, -RA, -SHRA
Fri, Aug 13 Heavy Rain, Showers of Rain, Light Rain, Showers of Light Rain0.35 in+RA, SHRA, -RA, -SHRA
Sat, Aug 14 Showers of Light Rain0.09 in-SHRA
Sun, Aug 15 Light Rain, Showers of Light Rain0.03 in-RA, -SHRA
Mon, Aug 16 Rain, Light Rain0.04 inRA, -RA
Tue, Aug 17 Thunderstorm with Rain, Showers of Heavy Rain, Rain, Showers of Rain, Light Rain, Showers of Light Rain, Mist1.37 inTSRA, +SHRA, RA, SHRA, -RA, -SHRA, BR
Wed, Aug 18 Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Rain, Heavy Rain, Showers of Heavy Rain, Showers of Rain, Showers of Light Rain, Fog, Mist1.26 inVCTS, +TSRA, TSRA, +RA, +SHRA, SHRA, -SHRA, FG, BR
Thu, Aug 19 Showers in the VicinityVCSH
Fri, Aug 20 Rain, Light Rain0.03 inRA, -RA
Sat, Aug 21 Thunderstorm in the Vicinity, Showers of Heavy Rain, Showers of Light Rain, Showers in the Vicinity0.75 inVCTS, +SHRA, -SHRA, VCSH
Sun, Aug 22 Thunderstorm in the Vicinity, Light Rain, Showers of Light Rain0.37 inVCTS, -RA, -SHRA
Mon, Aug 23 ThunderstormTS
Tue, Aug 24 Thunderstorm, Heavy Rain, Showers of Light Rain0.50 inTS, +RA, -SHRA
Wed, Aug 25 Showers of Heavy Rain, Showers of Rain, Light Rain, Showers of Light Rain0.55 in+SHRA, SHRA, -RA, -SHRA
Thu, Aug 26 Heavy Rain, Rain, Light Rain, Showers of Light Rain, Mist1.49 in+RA, RA, -RA, -SHRA, BR
Fri, Aug 27 Heavy Rain, Light Rain, Showers of Light Rain, Showers in the Vicinity0.03 in+RA, -RA, -SHRA, VCSH
Sat, Aug 28 Thunderstorm, Thunderstorm in the Vicinity, Light Rain, Showers of Light Rain, Showers in the Vicinity0.09 inTS, VCTS, -RA, -SHRA, VCSH
Sun, Aug 29 Showers in the Vicinity0.00 inVCSH
Mon, Aug 30 Light Rain, Light Drizzle0.00 in-RA, -DZ
Tue, Aug 31 Heavy Rain, Showers of Heavy Rain, Rain, Showers of Rain, Light Rain, Showers of Light Rain, Mist, Showers in the Vicinity0.67 in+RA, +SHRA, RA, SHRA, -RA, -SHRA, BR, VCSH

Hours of Daylight and Twilight in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Hours of Daylight and Twilight in August 2021 at USAF Andersen Air Force Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrJulSepnightnightdaydayAug 112 hr, 43 minAug 112 hr, 43 minAug 3112 hr, 24 minAug 3112 hr, 24 minAug 1112 hr, 37 minAug 1112 hr, 37 minAug 2112 hr, 31 minAug 2112 hr, 31 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.

Sunrise & Sunset with Twilight in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Sunrise & Sunset with Twilight in August 2021 at USAF Andersen Air Force Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMJulSep6:04 AM6:04 AMAug 16:48 PMAug 16:48 PM6:08 AM6:08 AMAug 316:32 PMAug 316:32 PM6:06 AM6:06 AMAug 116:44 PMAug 116:44 PM6:08 AM6:08 AMAug 216:38 PMAug 216:38 PM
The solar day over the course of August 2021. 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.

Solar Elevation and Azimuth in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Solar Elevation and Azimuth in August 2021 at USAF Andersen Air Force BaseAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSep00101020203030404050506060707080800010102020303040405050606070708080
northeastsouthwest
Solar elevation and azimuth over the course of August 2021. 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).

Moon Rise, Set & Phases in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Moon Rise, Set & Phases in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepAug 811:51 PMAug 811:51 PMAug 2210:03 PMAug 2210:03 PMSep 710:52 AMSep 710:52 AM5:30 AM5:30 AM6:42 PM6:42 PM6:40 PM6:40 PM6:33 AM6:33 AM6:05 AM6:05 AM6:50 PM6:50 PM
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.
Aug 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
47%12:00 AMENE12:48 PMWNW-6:23 AMS250,452 mi
2
38%12:38 AMENE1:36 PMWNW-7:06 AMN251,216 mi
3
28%1:19 AMENE2:26 PMWNW-7:51 AMN251,158 mi
4
20%2:03 AMENE3:18 PMWNW-8:39 AMN250,334 mi
5
13%2:50 AMENE4:10 PMWNW-9:30 AMN248,857 mi
6
7%3:41 AMENE5:02 PMWNW-10:22 AMN246,879 mi
7
2%4:35 AMENE5:53 PMWNW-11:15 AMN244,577 mi
8
0%5:30 AMENE6:42 PMWNW-12:07 PMN242,134 mi
9
0%6:25 AMENE7:28 PMWNW-12:58 PMN239,712 mi
10
3%7:20 AMENE8:12 PMWNW-1:48 PMSSE237,441 mi
11
8%8:14 AME8:54 PMW-2:35 PMS235,407 mi
12
15%9:07 AME9:35 PMW-3:22 PMS233,653 mi
13
24%10:01 AME10:17 PMW-4:09 PMS232,189 mi
14
35%10:56 AME11:00 PMWSW-4:58 PMS231,014 mi
15
47%11:52 AMESE11:46 PMWSW-5:49 PMS230,131 mi
16
50%12:52 PMESE--6:44 PMS229,565 mi
17
70%-12:37 AMWSW1:53 PMESE7:42 PMS229,365 mi
18
80%-1:32 AMWSW2:56 PMESE8:44 PMS229,605 mi
19
89%-2:32 AMWSW3:58 PMESE9:46 PMS230,358 mi
20
95%-3:34 AMWSW4:57 PMESE10:47 PMS231,671 mi
21
99%-4:36 AMWSW5:51 PMESE11:44 PMS233,542 mi
22
100%-5:36 AMWSW6:40 PMESE--
23
100%-6:33 AMWSW7:24 PMESE12:37 AMS235,903 mi
24
98%-7:26 AMW8:04 PME1:25 AMS238,620 mi
25
95%-8:17 AMW8:42 PME2:10 AMS241,506 mi
26
89%-9:05 AMW9:19 PME2:53 AMS244,344 mi
27
82%-9:53 AMW9:56 PME3:35 AMS246,908 mi
28
73%-10:40 AMWNW10:34 PMENE4:17 AMS248,991 mi
29
64%-11:29 AMWNW11:14 PMENE5:00 AMN250,419 mi
30
50%-12:18 PMWNW11:56 PMENE5:44 AMN251,065 mi
31
45%-1:09 PMWNW-6:31 AMN250,868 mi

Humidity Comfort Levels in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Humidity Comfort Levels in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Wind Speed in August 2021 at USAF Andersen Air Force Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mph35 mph35 mph40 mph40 mphJulSep
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Hourly Wind Speed in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Hourly Wind Direction in 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in August 2021 at USAF Andersen Air Force Base

History:20232022JFMAMJJAugSOND20202019
Atmospheric Pressure in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.70 inHg29.70 inHg29.75 inHg29.75 inHg29.80 inHg29.80 inHg29.85 inHg29.85 inHg29.90 inHg29.90 inHg29.95 inHg29.95 inHg30.00 inHg30.00 inHg30.05 inHg30.05 inHgJulSep
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

Reports by Month

Reports by Month at USAF Andersen Air Force Base19401950196019701980199020002010202019481948194919491950195019511951195219521953195319541954195519551956195619571957195819581959195919601960196119611962196219631963196419641965196519661966196719671968196819691969197019701971197119731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in August 2021 at USAF Andersen Air Force Base Summer 2021

Number of Reports by Day in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313100242448487272JulSep
regularspecialcorrection
The number of reports per day.

Reports by Hour in August 2021 at USAF Andersen Air Force Base Summer 2021

Reports by Hour in August 2021 at USAF Andersen Air Force Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
regularspecialcorrection
Indication of what types of reports were recorded during each hour.

This report graphically illustrates the historical weather reports recorded by the weather station at USAF Andersen Air Force Base in August 2021.

METAR Reports

Airport weather stations throughout the world routinely issue METAR weather reports . Such reports are used by pilots, air traffic controllers, meteorologists, climatologists, and other researchers. They are published via radio transmission and on the internet. We have been collecting and archiving published METAR reports since 2011, and have found third-party sources for archived reports from years prior to that.

ISD Reports

The Integrated Surface Database (ISD), maintained and published by NOAA's National Center for Environmental Information , consists of hourly and synoptic weather reports from a variety of sources. We use ISD data to complement and backfill for our METAR archive.

Other Data

The sources for the averages shown in the daily temperature chart are discussed in greater detail on this station's Averages Report.

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.

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

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