December 2020 Weather History in San Antonio Texas, United States

The data for this report comes from the San Antonio International Airport. See all nearby weather stations

This report shows the past weather for San Antonio, providing a weather history for December 2020. It features all historical weather data series we have available, including the San Antonio temperature history for December 2020. You can drill down from year to month and even day level reports by clicking on the graphs.

San Antonio Temperature History December 2020

Temperature history in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°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 2020 in San Antonio

Hourly Temperature in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJanvery 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 2020 in San Antonio

Cloud Cover in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 in San Antonio

Daily Precipitation in December 2020 in San Antonio1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 2020 in San Antonio

Snow Depth in December 2020 in San Antonio1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 inNovJan
The daily measured snow depth, where available.

Observed Weather in December 2020 in San Antonio

Observed Weather in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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
Sat, Dec 5 Light Rain, Mist0.01 in-RA, BR
Sun, Dec 6 MistBR
Fri, Dec 11 Light Rain0.01 in-RA
Sun, Dec 13 Light Rain, Haze, Fog, Mist0.00 in-RA, HZ, FG, BR
Tue, Dec 15 Haze, MistHZ, BR
Fri, Dec 18 Light Rain0.00 in-RA
Sat, Dec 19 Light Rain, Light Rain with Mist, Mist0.03 in-RA, -RABR, BR
Wed, Dec 23 Light Rain, Mist0.00 in-RA, BR
Mon, Dec 28 Light Rain, Light Drizzle, Mist0.00 in-RA, -DZ, BR
Tue, Dec 29 Light Rain0.00 in-RA
Wed, Dec 30 Rain, Light Rain0.22 inRA, -RA
Thu, Dec 31 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist0.54 in+TSRA, -TSRA, TSRA, RA, -RA, BR

Hours of Daylight and Twilight in December 2020 in San Antonio

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 2020 in San Antonio

The solar day over the course of December 2020. 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 2020 in San Antonio

Solar Elevation and Azimuth in December 2020 in San AntonioDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan0010102020303000101020203030
northeastsouthwest
Solar elevation and azimuth over the course of December 2020. 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 2020 in San Antonio

Moon Rise, Set & Phases in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 303:30 AMNov 303:30 AMDec 1410:17 AMDec 1410:17 AMDec 299:29 PMDec 299:29 PM5:18 PM5:18 PM7:21 AM7:21 AM7:17 AM7:17 AM5:49 PM5:49 PM5:28 PM5:28 PM8:00 AM8:00 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 2020IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
99%-8:17 AMWNW6:43 PMENE1:06 AMS248,278 mi
2
96%-9:13 AMWNW7:34 PMENE1:57 AMS246,495 mi
3
92%-10:06 AMWNW8:29 PMENE2:50 AMS244,480 mi
4
85%-10:55 AMWNW9:28 PMENE3:43 AMS242,249 mi
5
77%-11:39 AMWNW10:30 PMENE4:36 AMS239,812 mi
6
67%-12:20 PMWNW11:32 PMENE5:27 AMS237,198 mi
7
50%-12:58 PMWNW-6:17 AMS234,469 mi
8
44%12:34 AME1:34 PMW-7:06 AMS231,741 mi
9
33%1:37 AME2:09 PMW-7:54 AMS229,183 mi
10
22%2:42 AME2:45 PMW-8:44 AMS227,016 mi
11
13%3:48 AME3:23 PMWSW-9:36 AMS225,482 mi
12
6%4:57 AMESE4:06 PMWSW-10:31 AMS224,812 mi
13
1%6:07 AMESE4:54 PMWSW-11:30 AMS225,170 mi
14
0%7:17 AMESE5:49 PMWSW-12:33 PMS226,609 mi
15
2%8:24 AMESE6:48 PMWSW-1:36 PMS229,043 mi
16
6%9:24 AMESE7:52 PMWSW-2:38 PMS232,253 mi
17
13%10:17 AMESE8:55 PMWSW-3:36 PMS235,929 mi
18
21%11:01 AMESE9:57 PMWSW-4:29 PMS239,729 mi
19
31%11:40 AMESE10:55 PMWSW-5:17 PMS243,332 mi
20
41%12:14 PMESE11:51 PMW-6:02 PMS246,472 mi
21
50%12:44 PME--6:44 PMS248,952 mi
22
60%-12:45 AMW1:13 PME7:24 PMS250,652 mi
23
70%-1:37 AMW1:42 PME8:04 PMS251,526 mi
24
78%-2:29 AMW2:11 PME8:45 PMS251,597 mi
25
85%-3:22 AMWNW2:42 PMENE9:27 PMS250,942 mi
26
92%-4:17 AMWNW3:16 PMENE10:12 PMS249,682 mi
27
96%-5:12 AMWNW3:55 PMENE11:00 PMS247,963 mi
28
99%-6:09 AMWNW4:38 PMENE11:51 PMS245,943 mi
29
100%-7:05 AMWNW5:28 PMENE--
30
100%-8:00 AMWNW6:22 PMENE12:44 AMS243,769 mi
31
99%-8:51 AMWNW7:21 PMENE1:38 AMS241,565 mi

Humidity Comfort Levels in December 2020 in San Antonio

Humidity Comfort Levels in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 in San Antonio

Wind Speed in December 2020 in San Antonio1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 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 2020 in San Antonio

Hourly Wind Speed in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 in San Antonio

Hourly Wind Direction in 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 in San Antonio

Atmospheric Pressure in December 2020 in San Antonio18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHg30.6 inHg30.6 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 San Antonio International Airport page.

See all nearby weather stations

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