September 2018 Weather History in Baltimore United States

The data for this report comes from the Baltimore-Washington International Airport. See all nearby weather stations

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

Baltimore Temperature History September 2018

Temperature history in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303040°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°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 Baltimore

Hourly Temperature in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcoolcomfortablewarmhot
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 Baltimore

Cloud Cover in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 Baltimore

Daily Precipitation in September 2018 in Baltimore181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 in0 in1 in1 in2 in2 in3 in3 in4 in4 inAugOct
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in September 2018 in Baltimore

Observed Weather in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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, Light Drizzle, Mist0.01 in-RA, -DZ, BR
Sun, Sep 2 Light Rain, Mist0.00 in-RA, BR
Mon, Sep 3 Thunderstorm, Mist, Patches of FogTS, BR, BCFG
Tue, Sep 4 Patches of FogBCFG
Thu, Sep 6 Thunderstorm with Light Rain, Mist0.00 in-TSRA, BR
Fri, Sep 7 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist0.44 inTS, -TSRA, TSRA, RA, -RA, BR
Sat, Sep 8 Heavy Rain, Rain, Light Rain, Mist0.39 in+RA, RA, -RA, BR
Sun, Sep 9 Heavy Rain, Rain, Light Rain, Mist2.03 in+RA, RA, -RA, BR
Mon, Sep 10 Light Rain, Light Drizzle, Mist0.04 in-RA, -DZ, BR
Tue, Sep 11 Thunderstorm in the Vicinity, Rain, Light Rain, Light Drizzle, Fog, Mist0.49 inVCTS, RA, -RA, -DZ, FG, BR
Wed, Sep 12 Light Rain, Haze, Fog, Mist0.02 in-RA, HZ, FG, BR
Thu, Sep 13 Rain, Light Rain, Mist0.04 inRA, -RA, BR
Fri, Sep 14 Light Rain, Light Drizzle, Mist0.03 in-RA, -DZ, BR
Sat, Sep 15 Light Drizzle, Mist0.00 in-DZ, BR
Sun, Sep 16 MistBR
Mon, Sep 17 Heavy Rain, Rain, Light Rain, Mist0.27 in+RA, RA, -RA, BR
Tue, Sep 18 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist2.34 inTS, +TSRA, -TSRA, TSRA, +RA, RA, -RA, BR
Thu, Sep 20 MistBR
Sat, Sep 22 Light Rain, Mist0.04 in-RA, BR
Sun, Sep 23 Rain, Light Rain, Mist0.92 inRA, -RA, BR
Mon, Sep 24 Rain, Light Rain, Light Drizzle, Mist, Smoke0.25 inRA, -RA, -DZ, BR, FU
Tue, Sep 25 Rain, Light Rain, Mist, Patches of Fog0.20 inRA, -RA, BR, BCFG
Wed, Sep 26 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Light Drizzle, Mist, Shallow Fog0.44 inTS, +TSRA, -TSRA, TSRA, -RA, -DZ, BR, MIFG
Thu, Sep 27 Heavy Rain, Rain, Light Rain, Light Drizzle, Mist0.55 in+RA, RA, -RA, -DZ, BR
Fri, Sep 28 Heavy Rain, Rain, Light Rain, Mist0.45 in+RA, RA, -RA, BR

Hours of Daylight and Twilight in September 2018 in Baltimore

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 Baltimore

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 Baltimore

Solar Elevation and Azimuth in September 2018 in BaltimoreSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct00101020203030404050500010102020303040405060
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 Baltimore

Moon Rise, Set & Phases in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 267:57 AMAug 267:57 AMSep 92:02 PMSep 92:02 PMSep 2410:53 PMSep 2410:53 PM7:37 PM7:37 PM6:26 AM6:26 AM6:19 AM6:19 AM7:45 PM7:45 PM7:11 PM7:11 PM7:14 AM7:14 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
68%-12:28 PMWNW11:16 PMENE5:31 AMS238,103 mi
2
50%-1:33 PMWNW11:57 PMENE6:22 AMS235,282 mi
3
46%-2:38 PMWNW-7:15 AMS232,419 mi
4
35%12:45 AMENE3:42 PMWNW-8:12 AMS229,686 mi
5
24%1:41 AMENE4:42 PMWNW-9:12 AMS227,307 mi
6
14%2:45 AMENE5:36 PMWNW-10:12 AMS225,539 mi
7
6%3:54 AMENE6:24 PMWNW-11:12 AMS224,620 mi
8
2%5:06 AMENE7:07 PMWNW-12:09 PMS224,724 mi
9
0%6:19 AMENE7:45 PMW-1:04 PMS225,910 mi
10
1%7:31 AME8:19 PMW-1:57 PMS228,109 mi
11
6%8:41 AME8:53 PMW-2:48 PMS231,126 mi
12
12%9:48 AME9:26 PMW-3:38 PMS234,682 mi
13
20%10:54 AMESE10:00 PMWSW-4:27 PMS238,451 mi
14
30%11:57 AMESE10:36 PMWSW-5:16 PMS242,117 mi
15
40%12:57 PMESE11:14 PMWSW-6:06 PMS245,403 mi
16
50%1:55 PMESE11:56 PMWSW-6:56 PMS248,095 mi
17
60%2:48 PMESE--7:45 PMS250,053 mi
18
69%-12:42 AMWSW3:37 PMESE8:34 PMS251,213 mi
19
78%-1:32 AMWSW4:21 PMESE9:23 PMS251,579 mi
20
85%-2:25 AMWSW5:01 PMESE10:11 PMS251,215 mi
21
92%-3:20 AMWSW5:37 PMESE10:57 PMS250,231 mi
22
96%-4:17 AMWSW6:10 PMESE11:42 PMS248,760 mi
23
98%-5:15 AMWSW6:41 PME--
24
100%-6:14 AMW7:11 PME12:27 AMS246,944 mi
25
100%-7:14 AMW7:40 PME1:11 AMS244,916 mi
26
99%-8:16 AMW8:10 PME1:56 AMS242,784 mi
27
95%-9:18 AMW8:41 PMENE2:42 AMS240,632 mi
28
89%-10:22 AMWNW9:16 PMENE3:29 AMS238,508 mi
29
82%-11:27 AMWNW9:56 PMENE4:19 AMS236,439 mi
30
72%-12:32 PMWNW10:41 PMENE5:11 AMS234,445 mi

Humidity Comfort Levels in September 2018 in Baltimore

Humidity Comfort Levels in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 Baltimore

Wind Speed in September 2018 in Baltimore181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mph35 mph35 mph40 mph40 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2018 in Baltimore

Hourly Wind Speed in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 Baltimore

Hourly Wind Direction in 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 Baltimore

Atmospheric Pressure in September 2018 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.7 inHg29.7 inHg29.8 inHg29.8 inHg29.9 inHg29.9 inHg30.0 inHg30.0 inHg30.1 inHg30.1 inHg30.2 inHg30.2 inHg30.3 inHg30.3 inHg30.4 inHg30.4 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 Baltimore-Washington International Airport page.

See all nearby weather stations

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