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September 2018 Weather History in Dutch Harbor United States

The data for this report comes from the Unalaska Airport. See all nearby weather stations

This report shows the past weather for Dutch Harbor, providing a weather history for September 2018. It features all historical weather data series we have available, including the Dutch Harbor temperature history for September 2018. You can drill down from year to month and even day level reports by clicking on the graphs.

Dutch Harbor Temperature History September 2018

History:20202019JFMAMJJASepOND20172016
Temperature history in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303035°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Hourly Temperature in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcoldcool
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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Cloud Cover in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Daily Precipitation in September 2018 in Dutch Harbor181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 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 inAugOct
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in September 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Snow Depth in September 2018 in Dutch Harbor181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 inAugOct
The daily measured snow depth, where available.

Observed Weather in September 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Observed Weather in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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
Sat, Sep 1 Light Rain, Mist0.01 in-RA, BR
Sun, Sep 2 Light Rain, Mist0.14 in-RA, BR
Thu, Sep 6 MistBR
Fri, Sep 7 Light Rain, Mist0.00 in-RA, BR
Tue, Sep 11 MistBR
Wed, Sep 12 Light Rain, Mist0.11 in-RA, BR
Thu, Sep 13 Light Rain0.00 in-RA
Fri, Sep 14 Light Rain0.00 in-RA
Tue, Sep 18 Light Rain, Mist0.00 in-RA, BR
Thu, Sep 20 Light Rain0.01 in-RA
Fri, Sep 21 Light Rain, Mist0.02 in-RA, BR
Sun, Sep 23 Light Rain-RA
Mon, Sep 24 Light Rain-RA
Thu, Sep 27 Light Rain, Mist0.18 in-RA, BR
Fri, Sep 28 Rain, Light Rain, Mist1.16 inRA, -RA, BR
Sat, Sep 29 Light Rain, Mist0.63 in-RA, BR
Sun, Sep 30 Light Rain, Mist0.26 in-RA, BR

Hours of Daylight and Twilight in September 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Hours of Daylight and Twilight in September 2018 in Dutch Harbor181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 12 minSep 2212 hr, 12 minnightnightdaydaySep 113 hr, 41 minSep 113 hr, 41 minSep 3011 hr, 38 minSep 3011 hr, 38 minSep 1112 hr, 58 minSep 1112 hr, 58 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 September 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Sunrise & Sunset with Twilight in September 2018 in Dutch Harbor181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM2 AM2 AMAugOct7:15 AM7:15 AMSep 18:55 PMSep 18:55 PM8:06 AM8:06 AMSep 307:44 PMSep 307:44 PM7:32 AM7:32 AMSep 118:31 PMSep 118:31 PM7:50 AM7:50 AMSep 218:06 PMSep 218:06 PM
The solar day over the course of September 2018. 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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Solar Elevation and Azimuth in September 2018 in Dutch HarborSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct00101020203030400010102020303040
northeastsouthwest
Solar elevation and azimuth over the course of September 2018. 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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Moon Rise, Set & Phases in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 262:57 AMAug 262:57 AMSep 99:02 AMSep 99:02 AMSep 245:53 PMSep 245:53 PM9:17 PM9:17 PM7:11 AM7:11 AM7:16 AM7:16 AM9:07 PM9:07 PM8:24 PM8:24 PM8:28 AM8:28 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.
Sep 2018IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
66%-2:19 PMWNW11:47 PMENE6:45 AMS237,406 mi
2
50%-3:34 PMWNW-7:36 AMS234,563 mi
3
43%12:21 AMENE4:46 PMNW-8:30 AMS231,715 mi
4
32%1:05 AMNE5:52 PMNW-9:27 AMS229,048 mi
5
21%2:01 AMNE6:49 PMNW-10:26 AMS226,799 mi
6
12%3:09 AMNE7:35 PMWNW-11:26 AMS225,222 mi
7
5%4:27 AMENE8:12 PMWNW-12:25 PMS224,546 mi
8
1%5:51 AMENE8:41 PMWNW-1:21 PMS224,918 mi
9
0%7:16 AMENE9:07 PMW-2:16 PMS226,367 mi
10
2%8:40 AME9:29 PMW-3:08 PMS228,792 mi
11
7%10:02 AME9:51 PMW-3:59 PMS231,972 mi
12
14%11:21 AMESE10:13 PMWSW-4:48 PMS235,612 mi
13
23%12:37 PMESE10:37 PMWSW-5:38 PMS239,385 mi
14
32%1:50 PMESE11:04 PMWSW-6:27 PMS242,981 mi
15
42%2:58 PMESE11:36 PMWSW-7:17 PMS246,136 mi
16
50%4:00 PMSE--8:07 PMS248,656 mi
17
62%-12:14 AMSW4:55 PMSE8:57 PMS250,418 mi
18
72%-12:59 AMSW5:42 PMSE9:47 PMS251,377 mi
19
80%-1:51 AMSW6:22 PMSE10:35 PMS251,553 mi
20
87%-2:50 AMWSW6:54 PMESE11:23 PMS251,022 mi
21
90%-3:53 AMWSW7:21 PMESE--
22
93%-4:59 AMWSW7:44 PMESE12:09 AMS249,903 mi
23
97%-6:07 AMWSW8:04 PMESE12:55 AMS248,332 mi
24
100%-7:17 AMW8:24 PME1:39 AMS246,451 mi
25
100%-8:28 AMW8:42 PME2:24 AMS244,387 mi
26
98%-9:41 AMW9:02 PME3:09 AMS242,244 mi
27
94%-10:55 AMWNW9:24 PMENE3:55 AMS240,095 mi
28
88%-12:10 PMWNW9:49 PMENE4:42 AMS237,983 mi
29
79%-1:25 PMWNW10:21 PMENE5:33 AMS235,932 mi
30
69%-2:38 PMNW11:01 PMNE6:25 AMS233,961 mi

Humidity Comfort Levels in September 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Humidity Comfort Levels in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Wind Speed in September 2018 in Dutch Harbor181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Hourly Wind Speed in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Hourly Wind Direction in 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Dutch Harbor

History:20202019JFMAMJJASepOND20172016
Atmospheric Pressure in September 2018 in Dutch Harbor1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.0 inHg29.0 inHg29.5 inHg29.5 inHg30.0 inHg30.0 inHg30.5 inHg30.5 inHgAugOct
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

The details of the data sources used for this report can be found on the Unalaska Airport page.

See all nearby weather stations

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