December 2017 Weather History in Baltimore Maryland, 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 December 2017. It features all historical weather data series we have available, including the Baltimore temperature history for December 2017. You can drill down from year to month and even day level reports by clicking on the graphs.

Baltimore Temperature History December 2017

Temperature history in December 2017 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°FNovJan
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 December 2017 in Baltimore

Hourly Temperature in December 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJanfrigidfreezingvery coldcoldcool
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 December 2017 in Baltimore

Cloud Cover in December 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
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 December 2017 in Baltimore

Daily Precipitation in December 2017 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 inNovJan
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in December 2017 in Baltimore

Snow Depth in December 2017 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 in0 in1 in1 in2 in2 in3 in3 in4 in4 inNovJan
The daily measured snow depth, where available.

Observed Weather in December 2017 in Baltimore

Observed Weather in December 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
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
Fri, Dec 1 Mist, Shallow FogBR, MIFG
Sat, Dec 2 MistBR
Sun, Dec 3 Light Rain, Haze, Mist0.03 in-RA, HZ, BR
Mon, Dec 4 Haze, MistHZ, BR
Tue, Dec 5 Rain, Light Rain, Mist0.14 inRA, -RA, BR
Wed, Dec 6 Light Rain0.00 in-RA
Sat, Dec 9 Snow, Light Snow, Freezing Fog, Mist0.23 inSN, -SN, FZFG, BR
Sun, Dec 10 MistBR
Wed, Dec 13 Light Snow, Mist0.00 in-SN, BR
Thu, Dec 14 Light Snow0.00 in-SN
Fri, Dec 15 Snow, Light Snow, Freezing Fog, Mist0.10 inSN, -SN, FZFG, BR
Sat, Dec 16 MistBR
Sun, Dec 17 Light Rain0.00 in-RA
Mon, Dec 18 Haze0.00 inHZ
Sat, Dec 23 Rain, Light Rain, Mist0.35 inRA, -RA, BR
Sun, Dec 24 Light Rain, Light Drizzle, Mist0.01 in-RA, -DZ, BR
Mon, Dec 25 Light Rain, Mist0.00 in-RA, BR
Wed, Dec 27 Light Snow0.00 in-SN
Sat, Dec 30 Light Snow, Mist0.06 in-SN, BR

Hours of Daylight and Twilight in December 2017 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 December 2017 in Baltimore

The solar day over the course of December 2017. 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 December 2017 in Baltimore

Solar Elevation and Azimuth in December 2017 in BaltimoreDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan00101020200010102020
northeastsouthwest
Solar elevation and azimuth over the course of December 2017. 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 December 2017 in Baltimore

Moon Rise, Set & Phases in December 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanDec 310:48 AMDec 310:48 AMDec 181:31 AMDec 181:31 AMJan 19:25 PMJan 19:25 PM4:22 PM4:22 PM6:47 AM6:47 AM7:23 AM7:23 AM5:24 PM5:24 PM4:47 PM4:47 PM7:44 AM7:44 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.
Dec 2017IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
97%-4:23 AMWNW3:39 PMENE10:34 PMS225,045 mi
2
100%-5:35 AMWNW4:22 PMENE11:32 PMS222,978 mi
3
100%-6:47 AMWNW5:12 PMENE--
4
100%-7:58 AMWNW6:08 PMENE12:33 AMS222,148 mi
5
96%-9:04 AMWNW7:11 PMENE1:36 AMS222,628 mi
6
90%-10:02 AMWNW8:18 PMENE2:38 AMS224,323 mi
7
81%-10:53 AMWNW9:27 PMENE3:38 AMS226,989 mi
8
71%-11:36 AMWNW10:34 PMENE4:34 AMS230,302 mi
9
60%-12:14 PMWNW11:39 PME5:26 AMS233,922 mi
10
50%-12:47 PMW-6:15 AMS237,551 mi
11
38%12:42 AME1:18 PMW-7:02 AMS240,959 mi
12
28%1:43 AME1:48 PMW-7:47 AMS243,997 mi
13
19%2:43 AME2:19 PMW-8:31 AMS246,584 mi
14
12%3:41 AMESE2:50 PMWSW-9:16 AMS248,691 mi
15
6%4:39 AMESE3:24 PMWSW-10:01 AMS250,327 mi
16
2%5:35 AMESE4:00 PMWSW-10:48 AMS251,515 mi
17
0%6:30 AMESE4:40 PMWSW-11:35 AMS252,278 mi
18
0%7:23 AMESE5:24 PMWSW-12:23 PMS252,626 mi
19
2%8:12 AMESE6:13 PMWSW-1:12 PMS252,548 mi
20
6%8:57 AMESE7:04 PMWSW-2:01 PMS252,012 mi
21
11%9:39 AMESE7:59 PMWSW-2:48 PMS250,971 mi
22
18%10:16 AMESE8:55 PMWSW-3:35 PMS249,377 mi
23
26%10:51 AMESE9:53 PMWSW-4:21 PMS247,198 mi
24
35%11:23 AMESE10:52 PMW-5:07 PMS244,433 mi
25
46%11:54 AME11:53 PMW-5:53 PMS241,136 mi
26
50%12:25 PME--6:39 PMS237,425 mi
27
67%-12:56 AMW12:58 PME7:27 PMS233,499 mi
28
78%-2:01 AMW1:32 PMENE8:18 PMS229,637 mi
29
87%-3:09 AMWNW2:11 PMENE9:13 PMS226,179 mi
30
94%-4:20 AMWNW2:56 PMENE10:11 PMS223,492 mi
31
99%-5:31 AMWNW3:48 PMENE11:13 PMS221,900 mi

Humidity Comfort Levels in December 2017 in Baltimore

Humidity Comfort Levels in December 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
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 December 2017 in Baltimore

Wind Speed in December 2017 in Baltimore1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphNovJan
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in December 2017 in Baltimore

Hourly Wind Speed in December 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
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 2017 in Baltimore

Hourly Wind Direction in 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in December 2017 in Baltimore

Atmospheric Pressure in December 2017 in Baltimore18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHg30.6 inHg30.6 inHg30.8 inHg30.8 inHgNovJan
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.

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