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December 2011 Weather History in Santa Rosa United States

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

This report shows the past weather for Santa Rosa, providing a weather history for December 2011. It features all historical weather data series we have available, including the Santa Rosa temperature history for December 2011. You can drill down from year to month and even day level reports by clicking on the graphs.

Santa Rosa Temperature History December 2011

History:20132012JFMAMJJASONDec20102009
Temperature history in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313135°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Hourly Temperature in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJancoldcoolvery cold
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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Cloud Cover in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Daily Precipitation in December 2011 in Santa Rosa1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 quantity of liquid or liquid-equivalent precipitation.

Observed Weather in December 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Observed Weather in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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
Thu, Dec 8 HazeHZ
Fri, Dec 9 HazeHZ
Sat, Dec 10 Haze, MistHZ, BR
Sun, Dec 11 Light Rain, Haze0.01 in-RA, HZ
Mon, Dec 12 Light Rain0.06 in-RA
Tue, Dec 13 Haze, MistHZ, BR
Thu, Dec 15 Light Rain, Mist0.02 in-RA, BR
Sun, Dec 18 Fog in the VicinityVCFG
Mon, Dec 19 Light Rain0.00 in-RA
Sun, Dec 25 HazeHZ
Mon, Dec 26 HazeHZ
Tue, Dec 27 HazeHZ
Thu, Dec 29 Fog, Mist, Patches of FogFG, BR, BCFG
Fri, Dec 30 MistBR

Hours of Daylight and Twilight in December 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Hours of Daylight and Twilight in December 2011 in Santa Rosa1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 219 hr, 29 minDec 219 hr, 29 minnightnightdaydayDec 19 hr, 41 minDec 19 hr, 41 minDec 319 hr, 32 minDec 319 hr, 32 minDec 119 hr, 32 minDec 119 hr, 32 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 December 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Sunrise & Sunset with Twilight in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan7:09 AM7:09 AMDec 14:50 PMDec 14:50 PM7:28 AM7:28 AMDec 314:59 PMDec 314:59 PM7:13 AM7:13 AMDec 64:49 PMDec 64:49 PM7:17 AM7:17 AMDec 114:50 PMDec 114:50 PM7:24 AM7:24 AMDec 214:53 PMDec 214:53 PM
The solar day over the course of December 2011. 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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Solar Elevation and Azimuth in December 2011 in Santa RosaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan0010102020001010202030
northeastsouthwest
Solar elevation and azimuth over the course of December 2011. 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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Moon Rise, Set & Phases in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 2410:10 PMNov 2410:10 PMDec 106:37 AMDec 106:37 AMDec 2410:07 AMDec 2410:07 AM6:26 AM6:26 AM4:30 PM4:30 PM4:17 PM4:17 PM7:22 AM7:22 AM7:17 AM7:17 AM5:15 PM5:15 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.
Dec 2011IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
47%11:58 AME11:50 PMW-5:53 PMS246,241 mi
2
50%12:25 PME--6:35 PMS248,816 mi
3
66%-12:48 AMW12:52 PME7:16 PMS250,627 mi
4
75%-1:45 AMW1:18 PME7:58 PMS251,646 mi
5
83%-2:42 AMWNW1:47 PMENE8:40 PMS251,906 mi
6
90%-3:39 AMWNW2:18 PMENE9:24 PMS251,488 mi
7
95%-4:36 AMWNW2:52 PMENE10:10 PMS250,506 mi
8
98%-5:33 AMWNW3:32 PMENE10:59 PMS249,087 mi
9
100%-6:29 AMWNW4:17 PMENE11:49 PMS247,358 mi
10
100%-7:22 AMWNW5:09 PMENE--
11
99%-8:11 AMWNW6:05 PMENE12:40 AMS245,426 mi
12
97%-8:55 AMWNW7:06 PMENE1:32 AMS243,374 mi
13
92%-9:35 AMWNW8:09 PMENE2:23 AMS241,255 mi
14
85%-10:10 AMWNW9:13 PMENE3:12 AMS239,095 mi
15
77%-10:43 AMW10:18 PME4:01 AMS236,908 mi
16
67%-11:14 AMW11:24 PME4:48 AMS234,713 mi
17
50%-11:45 AMW-5:36 AMS232,559 mi
18
44%12:32 AME12:17 PMW-6:25 AMS230,533 mi
19
32%1:41 AMESE12:52 PMWSW-7:17 AMS228,769 mi
20
21%2:52 AMESE1:31 PMWSW-8:12 AMS227,442 mi
21
12%4:03 AMESE2:17 PMWSW-9:10 AMS226,742 mi
22
5%5:13 AMESE3:09 PMWSW-10:11 AMS226,840 mi
23
1%6:19 AMESE4:09 PMWSW-11:14 AMS227,835 mi
24
0%7:17 AMESE5:15 PMWSW-12:16 PMS229,726 mi
25
2%8:08 AMESE6:22 PMWSW-1:15 PMS232,390 mi
26
6%8:50 AMESE7:29 PMWSW-2:09 PMS235,606 mi
27
12%9:26 AMESE8:34 PMWSW-2:59 PMS239,090 mi
28
20%9:57 AME9:36 PMW-3:46 PMS242,542 mi
29
29%10:26 AME10:36 PMW-4:30 PMS245,679 mi
30
39%10:53 AME11:34 PMW-5:12 PMS248,267 mi
31
50%11:20 AME--5:54 PMS250,133 mi

Humidity Comfort Levels in December 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Humidity Comfort Levels in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Wind Speed in December 2011 in Santa Rosa1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mph35 mph35 mph40 mph40 mphNovJan
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in December 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Hourly Wind Speed in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Hourly Wind Direction in 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2011 in Santa Rosa

History:20132012JFMAMJJASONDec20102009
Atmospheric Pressure in December 2011 in Santa Rosa18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.8 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 Francisco International Airport page.

See all nearby weather stations

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