September 2021 Weather History at Francisco C. Ada International Airport Northern Mariana Islands

This report shows the past weather for Francisco C. Ada International Airport, providing a weather history for September 2021. It features all historical weather data series we have available, including the Francisco C. Ada International Airport temperature history for September 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

Francisco C. Ada International Airport Temperature History September 2021

Temperature history in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303072°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°F94°F94°FAugOct
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 September 2021 at Francisco C. Ada International Airport

Hourly Temperature in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctwarmhot
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 September 2021 at Francisco C. Ada International Airport

Cloud Cover in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2021 at Francisco C. Ada International Airport

Daily Precipitation in September 2021 at Francisco C. Ada International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 inAugOct
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in September 2021 at Francisco C. Ada International Airport

Observed Weather in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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
Wed, Sep 1 Light Rain0.14 in-RA
Thu, Sep 2 Light Rain, Mist0.05 in-RA, BR
Fri, Sep 3 Light Rain0.23 in-RA
Sat, Sep 4 Light Rain0.29 in-RA
Sun, Sep 5 Heavy Rain, Light Rain, Mist1.00 in+RA, -RA, BR
Mon, Sep 6 Light Rain, Mist0.14 in-RA, BR
Tue, Sep 7 Light Rain, Mist0.14 in-RA, BR
Wed, Sep 8 Light Rain, Mist0.04 in-RA, BR
Thu, Sep 9 Light Rain0.02 in-RA
Sat, Sep 11 Light Rain0.01 in-RA
Sun, Sep 12 Light Rain0.04 in-RA
Mon, Sep 13 Light Rain0.02 in-RA
Tue, Sep 14 Rain, Light Rain, Mist0.46 inRA, -RA, BR
Wed, Sep 15 Light Rain0.11 in-RA
Thu, Sep 16 Rain, Mist0.78 inRA, BR
Fri, Sep 17 Heavy Rain, Light Rain, Mist0.47 in+RA, -RA, BR
Sun, Sep 19 Light Rain, Mist0.03 in-RA, BR
Mon, Sep 20 Light Rain0.00 in-RA
Tue, Sep 21 Light Rain0.04 in-RA
Wed, Sep 22 Light Rain0.06 in-RA
Thu, Sep 23 Heavy Rain, Rain, Light Rain, Mist3.19 in+RA, RA, -RA, BR
Fri, Sep 24 Rain, Light Rain, Mist0.33 inRA, -RA, BR
Sat, Sep 25 Heavy Rain, Rain, Light Rain, Mist0.90 in+RA, RA, -RA, BR
Sun, Sep 26 Light Rain0.01 in-RA
Thu, Sep 30 Rain, Mist0.46 inRA, BR

Hours of Daylight and Twilight in September 2021 at Francisco C. Ada International Airport

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 September 2021 at Francisco C. Ada International Airport

Sunrise & Sunset with Twilight in September 2021 at Francisco C. Ada International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAugOct6:04 AM6:04 AMSep 16:29 PMSep 16:29 PM6:06 AM6:06 AMSep 306:07 PMSep 306:07 PM6:05 AM6:05 AMSep 116:21 PMSep 116:21 PM6:06 AM6:06 AMSep 216:14 PMSep 216:14 PM
The solar day over the course of September 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 September 2021 at Francisco C. Ada International Airport

Solar Elevation and Azimuth in September 2021 at Francisco C. Ada International AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct0010102020303040405050606070708000101020203030404050506060707080
northeastsouthwest
Solar elevation and azimuth over the course of September 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 September 2021 at Francisco C. Ada International Airport

Moon Rise, Set & Phases in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctSep 710:52 AMSep 710:52 AMSep 219:55 AMSep 219:55 AMOct 69:06 PMOct 69:06 PM6:00 AM6:00 AM6:48 PM6:48 PM5:58 PM5:58 PM6:04 AM6:04 AM5:37 AM5:37 AM6:04 PM6:04 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.
Sep 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
35%12:36 AMENE2:01 PMWNW-7:17 AMN249,834 mi
2
26%1:25 AMENE2:53 PMWNW-8:09 AMN248,035 mi
3
18%2:17 AMENE3:44 PMWNW-9:01 AMN245,614 mi
4
10%3:12 AMENE4:34 PMWNW-9:54 AMN242,773 mi
5
5%4:08 AMENE5:21 PMWNW-10:46 AMN239,748 mi
6
1%5:04 AMENE6:05 PMWNW-11:36 AMN236,785 mi
7
0%6:00 AMENE6:48 PMW-12:25 PMS234,114 mi
8
2%6:55 AME7:29 PMW-1:13 PMS231,917 mi
9
6%7:51 AME8:11 PMW-2:01 PMS230,310 mi
10
13%8:47 AME8:53 PMW-2:50 PMS229,334 mi
11
22%9:45 AMESE9:39 PMWSW-3:41 PMS228,961 mi
12
32%10:45 AMESE10:28 PMWSW-4:36 PMS229,121 mi
13
44%11:47 AMESE11:21 PMWSW-5:34 PMS229,718 mi
14
50%12:50 PMESE--6:34 PMS230,665 mi
15
67%-12:19 AMWSW1:52 PMESE7:36 PMS231,897 mi
16
78%-1:19 AMWSW2:50 PMESE8:36 PMS233,373 mi
17
87%-2:20 AMWSW3:44 PMESE9:33 PMS235,077 mi
18
93%-3:20 AMWSW4:33 PMESE10:26 PMS237,000 mi
19
98%-4:18 AMWSW5:17 PMESE11:15 PMS239,120 mi
20
99%-5:12 AMWSW5:58 PME--
21
100%-6:04 AMW6:36 PME12:01 AMS241,391 mi
22
100%-6:54 AMW7:12 PME12:44 AMS243,727 mi
23
97%-7:42 AMW7:48 PME1:26 AMS246,005 mi
24
93%-8:31 AMWNW8:25 PMENE2:08 AMS248,075 mi
25
87%-9:20 AMWNW9:03 PMENE2:51 AMS249,773 mi
26
80%-10:09 AMWNW9:44 PMENE3:35 AMN250,937 mi
27
71%-11:00 AMWNW10:28 PMENE4:21 AMN251,424 mi
28
62%-11:52 AMWNW11:16 PMENE5:09 AMN251,128 mi
29
50%-12:44 PMWNW-5:59 AMN249,998 mi
30
43%12:07 AMENE1:35 PMWNW-6:51 AMN248,048 mi

Humidity Comfort Levels in September 2021 at Francisco C. Ada International Airport

Humidity Comfort Levels in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2021 at Francisco C. Ada International Airport

Wind Speed in September 2021 at Francisco C. Ada International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2021 at Francisco C. Ada International Airport

Hourly Wind Speed in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 Francisco C. Ada International Airport

Hourly Wind Direction in 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in September 2021 at Francisco C. Ada International Airport

Atmospheric Pressure in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.65 inHg29.65 inHg29.70 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 inHgAugOct
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

Number of Reports by Day in September 2021 at Francisco C. Ada International Airport Fall 2021

Number of Reports by Day in September 2021 at Francisco C. Ada International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300024244848AugOct
regularspecialcorrection
The number of reports per day.

Reports by Hour in September 2021 at Francisco C. Ada International Airport Fall 2021

Reports by Hour in September 2021 at Francisco C. Ada International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 Francisco C. Ada International Airport in September 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.

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