December 2017 Weather History in Thornton Colorado, United States

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

This report shows the past weather for Thornton, providing a weather history for December 2017. It features all historical weather data series we have available, including the Thornton temperature history for December 2017. You can drill down from year to month and even day level reports by clicking on the graphs.

Thornton Temperature History December 2017

Temperature history in December 2017 in Thornton181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131-10°F-10°F0°F0°F10°F10°F20°F20°F30°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 2017 in Thornton

Hourly Temperature in December 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJanfrigidvery coldcoolcoldfreezing
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 Thornton

Cloud Cover in December 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Thornton

Daily Precipitation in December 2017 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 2017 in Thornton

Observed Weather in December 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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
Wed, Dec 13 Light Snow0.00 in-SN
Thu, Dec 14 Light Snow, Mist0.03 in-SN, BR
Sun, Dec 17 Light Snow, Mist0.00 in-SN, BR
Thu, Dec 21 Light Snow, Mist0.07 in-SN, BR
Sat, Dec 23 Heavy Snow, Snow, Light Snow, Freezing Fog, Mist0.10 in+SN, SN, -SN, FZFG, BR
Sun, Dec 24 Light Snow, Mist0.00 in-SN, BR
Mon, Dec 25 Fog in the VicinityVCFG
Tue, Dec 26 Light Snow, Haze, Freezing Fog, Mist0.01 in-SN, HZ, FZFG, BR
Wed, Dec 27 Fog in the Vicinity, MistVCFG, BR
Fri, Dec 29 Light Snow, Mist0.00 in-SN, BR
Sat, Dec 30 Light Snow, Haze, Fog in the Vicinity, Freezing Fog, Mist0.00 in-SN, HZ, VCFG, FZFG, BR
Sun, Dec 31 Light Snow, Mist0.00 in-SN, BR

Hours of Daylight and Twilight in December 2017 in Thornton

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 Thornton

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 Thornton

Solar Elevation and Azimuth in December 2017 in ThorntonDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Thornton

Moon Rise, Set & Phases in December 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanDec 38:48 AMDec 38:48 AMDec 1711:31 PMDec 1711:31 PMJan 17:25 PMJan 17:25 PM4:18 PM4:18 PM6:48 AM6:48 AM6:29 AM6:29 AM4:36 PM4:36 PM4:44 PM4:44 PM7:43 AM7:43 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 AMWNW3:35 PMENE10:32 PMS224,841 mi
2
100%-5:35 AMWNW4:18 PMENE11:30 PMS222,866 mi
3
100%-6:48 AMWNW5:08 PMENE--
4
99%-7:58 AMWNW6:05 PMENE12:32 AMS222,138 mi
5
96%-9:04 AMWNW7:08 PMENE1:34 AMS222,720 mi
6
89%-10:02 AMWNW8:16 PMENE2:36 AMS224,501 mi
7
80%-10:51 AMWNW9:24 PMENE3:36 AMS227,231 mi
8
70%-11:34 AMWNW10:32 PMENE4:32 AMS230,580 mi
9
59%-12:10 PMWNW11:37 PME5:24 AMS234,211 mi
10
50%-12:43 PMW-6:12 AMS237,829 mi
11
37%12:40 AME1:14 PMW-6:59 AMS241,213 mi
12
27%1:42 AME1:44 PMW-7:44 AMS244,218 mi
13
19%2:41 AME2:14 PMW-8:28 AMS246,767 mi
14
11%3:40 AMESE2:45 PMWSW-9:13 AMS248,837 mi
15
6%4:38 AMESE3:19 PMWSW-9:58 AMS250,436 mi
16
2%5:34 AMESE3:55 PMWSW-10:45 AMS251,590 mi
17
0%6:29 AMESE4:36 PMWSW-11:32 AMS252,320 mi
18
0%7:21 AMESE5:20 PMWSW-12:21 PMS252,636 mi
19
2%8:10 AMESE6:08 PMWSW-1:09 PMS252,523 mi
20
6%8:55 AMESE7:00 PMWSW-1:58 PMS251,949 mi
21
11%9:36 AMESE7:55 PMWSW-2:46 PMS250,866 mi
22
18%10:14 AMESE8:52 PMWSW-3:32 PMS249,227 mi
23
27%10:48 AMESE9:50 PMWSW-4:19 PMS247,001 mi
24
36%11:20 AME10:50 PMW-5:04 PMS244,192 mi
25
46%11:51 AME11:51 PMW-5:50 PMS240,856 mi
26
50%12:21 PME--6:36 PMS237,120 mi
27
68%-12:54 AMW12:53 PME7:25 PMS233,188 mi
28
79%-2:00 AMW1:28 PMENE8:16 PMS229,345 mi
29
88%-3:09 AMWNW2:07 PMENE9:11 PMS225,935 mi
30
95%-4:20 AMWNW2:52 PMENE10:09 PMS223,323 mi
31
99%-5:31 AMWNW3:44 PMENE11:11 PMS221,829 mi

Humidity Comfort Levels in December 2017 in Thornton

Humidity Comfort Levels in December 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Thornton

Wind Speed in December 2017 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 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 Thornton

Hourly Wind Speed in December 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Thornton

Hourly Wind Direction in 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Thornton

Atmospheric Pressure in December 2017 in Thornton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.4 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 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 Denver International Airport page.

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