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January 1971 Weather History in Tracy 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 Tracy, providing a weather history for January 1971. It features all historical weather data series we have available, including the Tracy temperature history for January 1971. You can drill down from year to month and even day level reports by clicking on the graphs.

Tracy Temperature History January 1971

History:19731972JanFMAMJJASOND19701969
Temperature history in January 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°FDecFeb
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 January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Hourly Temperature in January 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Cloud Cover in January 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Daily Precipitation in January 1971 in Tracy1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 in1.4 in1.4 inDecFeb
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Observed Weather in January 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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, Jan 1 Light Rain, Showers of Light Rain0.02 in-RA, IWC61, -SHRA, IWC80
Thu, Jan 7 SmokeIWC04, FU
Fri, Jan 8 SmokeIWC04, FU
Sat, Jan 9 Smoke, Fog, Sky-Obscuring FogIWC04, FG, IWC45, FU
Sun, Jan 10 Light Rain, Light Drizzle, Fog, Sky-Obscuring Fog0.01 in-RA, IWC61, -DZ, IWC51, FG, IWC45
Mon, Jan 11 Showers of Light Rain, Light Drizzle0.05 in-SHRA, IWC80, -DZ, IWC51
Tue, Jan 12 Showers of Light Rain0.16 in-SHRA, IWC80
Wed, Jan 13 Showers of Light Rain0.02 in-SHRA, IWC80
Fri, Jan 15 Light Rain, Showers of Light Rain0.03 in-RA, IWC61, -SHRA, IWC80
Sat, Jan 16 Light Rain, Showers of Light Rain, Light Drizzle, Fog, Sky-Obscuring Fog0.02 in-RA, IWC61, -SHRA, IWC80, -DZ, IWC51, FG, IWC45
Sun, Jan 17 Light Drizzle, Smoke, Fog, Sky-Obscuring Fog-DZ, IWC51, IWC04, FG, IWC45, FU
Mon, Jan 18 Smoke, Fog, Sky-Obscuring FogIWC04, FG, IWC45, FU
Tue, Jan 19 Smoke, Fog, Fog and Smoke, Sky-Obscuring FogIWC04, IWC44, FG, FGFU, IWC45
Wed, Jan 20 Light Drizzle, Fog, Sky-Obscuring Fog-DZ, IWC51, FG, IWC45
Thu, Jan 21 Smoke, Fog, Sky-Obscuring FogIWC04, FG, IWC45, FU
Mon, Jan 25 Drizzle, Haze, Smoke, Fog, Sky-Obscuring FogDZ, IWC05, IWC04, FG, IWC45, FU
Tue, Jan 26 Smoke, Fog, Fog and Smoke, Sky-Obscuring FogIWC04, IWC44, FG, FGFU, IWC45, FU
Wed, Jan 27 Smoke, Fog, Fog and SmokeIWC04, IWC44, FGFU, FU
Thu, Jan 28 Smoke, Fog, Fog and SmokeIWC04, IWC44, FG, FGFU, FU
Fri, Jan 29 Smoke, Fog, Fog and SmokeIWC04, IWC44, FG, FGFU, FU
Sat, Jan 30 Smoke, Fog, Fog and SmokeIWC04, IWC44, FGFU, FU
Sun, Jan 31 Smoke, Fog, Fog and Smoke, Sky-Obscuring FogIWC04, IWC44, FG, FGFU, IWC45, FU

Hours of Daylight and Twilight in January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Hours of Daylight and Twilight in January 1971 in Tracy1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrDecFebnightnightdaydayJan 19 hr, 36 minJan 19 hr, 36 minJan 3110 hr, 17 minJan 3110 hr, 17 minJan 119 hr, 45 minJan 119 hr, 45 minJan 219 hr, 59 minJan 219 hr, 59 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 January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Sunrise & Sunset with Twilight in January 1971 in Tracy1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMDecFeb7:10 AM7:10 AMJan 315:27 PMJan 315:27 PM7:21 AM7:21 AMJan 14:57 PMJan 14:57 PM7:21 AM7:21 AMJan 115:06 PMJan 115:06 PM7:17 AM7:17 AMJan 215:16 PMJan 215:16 PM
The solar day over the course of January 1971. 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 January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Solar Elevation and Azimuth in January 1971 in TracyJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMDecFeb00101020203030001010202030
northeastsouthwest
Solar elevation and azimuth over the course of January 1971. 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 January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Moon Rise, Set & Phases in January 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMDecFebDec 282:43 AMDec 282:43 AMJan 115:20 AMJan 115:20 AMJan 262:55 PMJan 262:55 PM7:52 AM7:52 AM5:15 PM5:15 PM4:19 PM4:19 PM7:42 AM7:42 AM7:13 AM7:13 AM5:21 PM5:21 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.
Jan 1971IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
26%10:23 AME10:12 PMW-4:17 PMS228,169 mi
2
37%10:50 AME11:23 PMW-5:04 PMS229,432 mi
3
50%11:17 AME--5:52 PMS231,062 mi
4
60%-12:33 AMWNW11:44 AMENE6:40 PMS232,918 mi
5
71%-1:43 AMWNW12:15 PMENE7:30 PMS234,900 mi
6
81%-2:53 AMWNW12:50 PMENE8:23 PMS236,950 mi
7
89%-4:02 AMWNW1:32 PMENE9:18 PMS239,040 mi
8
95%-5:09 AMNW2:21 PMNE10:14 PMS241,156 mi
9
98%-6:08 AMNW3:17 PMNE11:10 PMS243,277 mi
10
99%-6:59 AMNW4:19 PMENE--
11
100%-7:42 AMWNW5:22 PMENE12:03 AMS245,361 mi
12
99%-8:17 AMWNW6:26 PMENE12:53 AMS247,334 mi
13
97%-8:46 AMWNW7:27 PMENE1:39 AMS249,092 mi
14
92%-9:11 AMWNW8:26 PME2:22 AMS250,509 mi
15
86%-9:34 AMW9:24 PME3:02 AMS251,450 mi
16
79%-9:55 AMW10:21 PME3:41 AMS251,783 mi
17
71%-10:16 AMW11:19 PME4:20 AMS251,399 mi
18
62%-10:39 AMWSW-4:59 AMS250,228 mi
19
50%12:18 AMESE11:03 AMWSW-5:41 AMS248,252 mi
20
42%1:20 AMESE11:32 AMWSW-6:26 AMS245,520 mi
21
32%2:24 AMESE12:07 PMWSW-7:15 AMS242,159 mi
22
22%3:30 AMESE12:51 PMSW-8:10 AMS238,376 mi
23
14%4:35 AMSE1:45 PMSW-9:10 AMS234,455 mi
24
7%5:36 AMSE2:50 PMSW-10:13 AMS230,742 mi
25
2%6:29 AMESE4:03 PMWSW-11:16 AMS227,595 mi
26
0%7:13 AMESE5:21 PMWSW-12:17 PMS225,327 mi
27
1%7:51 AMESE6:38 PMWSW-1:14 PMS224,142 mi
28
6%8:23 AMESE7:54 PMW-2:07 PMS224,104 mi
29
13%8:51 AME9:08 PMW-2:58 PMS225,136 mi
30
22%9:19 AME10:21 PMW-3:47 PMS227,048 mi
31
33%9:47 AMENE11:33 PMWNW-4:36 PMS229,589 mi

Humidity Comfort Levels in January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Humidity Comfort Levels in January 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Wind Speed in January 1971 in Tracy1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mph35 mph35 mphDecFeb
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in January 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Hourly Wind Speed in January 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 1971 in Tracy

History:19731972JanFMAMJJASOND19701969
Hourly Wind Direction in 1971 in Tracy18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

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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