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April 2021 Weather History in Thornton 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 April 2021. It features all historical weather data series we have available, including the Thornton temperature history for April 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

Thornton Temperature History April 2021

History:20232022JFMAprMJJASOND20202019
Temperature history in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303010°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FMarMay
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 April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Hourly Temperature in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMaycoldvery coldwarmfreezing
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 April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Cloud Cover in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Daily Precipitation in April 2021 in Thornton181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inMarMay
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Snow Depth in April 2021 in Thornton181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 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 inMarMay
The daily measured snow depth, where available.

Observed Weather in April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Observed Weather in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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
Tue, Apr 6 Light Snow and Rain, Rain and Snow, Rain, Light Rain, Mist0.15 in-SNRA, RASN, RA, -RA, BR
Thu, Apr 15 Heavy Snow, Snow, Light Snow, Light Snow and Rain, Light Rain, Haze, Fog, Freezing Fog, Mist0.42 in+SN, SN, -SN, -SNRA, -RA, HZ, FG, FZFG, BR
Fri, Apr 16 Light Snow, Freezing Fog, Mist0.07 in-SN, FZFG, BR
Sat, Apr 17 Light Snow0.00 in-SN
Mon, Apr 19 Heavy Snow, Snow, Light Snow, Light Freezing Drizzle and Snow, Freezing Drizzle, Light Freezing Drizzle, Fog, Freezing Fog, Mist0.22 in+SN, SN, -SN, -FZDZSN, FZDZ, -FZDZ, FG, FZFG, BR
Tue, Apr 20 Light Snow, Mist0.02 in-SN, BR
Wed, Apr 21 Snow, Light Snow, Haze, Fog, Mist0.13 inSN, -SN, HZ, FG, BR
Thu, Apr 22 Haze, Mist0.00 inHZ, BR
Sat, Apr 24 Fog, Mist, Patches of FogFG, BR, BCFG
Tue, Apr 27 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist0.72 inVCTS, -TSRA, TSRA, +RA, RA, -RA, BR
Wed, Apr 28 Light Rain, Light Drizzle0.21 in-RA, -DZ

Hours of Daylight and Twilight in April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Hours of Daylight and Twilight in April 2021 in Thornton181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMaynightnightdaydayApr 112 hr, 41 minApr 112 hr, 41 minApr 3013 hr, 53 minApr 3013 hr, 53 minApr 1113 hr, 7 minApr 1113 hr, 7 minApr 2113 hr, 32 minApr 2113 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 April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Sunrise & Sunset with Twilight in April 2021 in Thornton181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMMarMay6:01 AM6:01 AMApr 307:53 PMApr 307:53 PM6:43 AM6:43 AMApr 17:24 PMApr 17:24 PM6:27 AM6:27 AMApr 117:34 PMApr 117:34 PM6:13 AM6:13 AMApr 217:44 PMApr 217:44 PM
The solar day over the course of April 2021. 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 April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Solar Elevation and Azimuth in April 2021 in ThorntonApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay001010202030304040505060001010202030304040505060
northeastsouthwest
Solar elevation and azimuth over the course of April 2021. 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 April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Moon Rise, Set & Phases in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 2812:49 PMMar 2812:49 PMApr 118:31 PMApr 118:31 PMApr 269:32 PMApr 269:32 PM6:14 PM6:14 PM7:08 AM7:08 AM6:36 AM6:36 AM7:20 PM7:20 PM7:33 PM7:33 PM6:36 AM6:36 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.
Apr 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
82%-9:21 AMWSW-4:19 AMS226,149 mi
2
71%12:32 AMESE10:07 AMWSW-5:19 AMS228,514 mi
3
60%1:42 AMESE11:00 AMSW-6:21 AMS231,353 mi
4
50%2:44 AMSE12:00 PMWSW-7:22 AMS234,404 mi
5
37%3:35 AMESE1:05 PMWSW-8:20 AMS237,447 mi
6
27%4:18 AMESE2:11 PMWSW-9:14 AMS240,329 mi
7
18%4:53 AMESE3:16 PMWSW-10:04 AMS242,959 mi
8
11%5:23 AMESE4:19 PMWSW-10:51 AMS245,296 mi
9
5%5:49 AME5:21 PMW-11:34 AMS247,328 mi
10
2%6:13 AME6:21 PMW-12:16 PMS249,049 mi
11
0%6:36 AME7:20 PMW-12:56 PMS250,450 mi
12
0%6:59 AME8:20 PMWNW-1:37 PMS251,503 mi
13
3%7:23 AMENE9:19 PMWNW-2:18 PMS252,158 mi
14
7%7:50 AMENE10:19 PMWNW-3:01 PMS252,346 mi
15
12%8:20 AMENE11:19 PMWNW-3:46 PMS251,988 mi
16
20%8:55 AMENE--4:34 PMS251,005 mi
17
28%-12:17 AMWNW9:36 AMENE5:23 PMS249,340 mi
18
37%-1:13 AMNW10:24 AMNE6:14 PMS246,975 mi
19
48%-2:04 AMNW11:19 AMENE7:06 PMS243,951 mi
20
50%-2:49 AMWNW12:21 PMENE7:58 PMS240,378 mi
21
69%-3:29 AMWNW1:27 PMENE8:49 PMS236,449 mi
22
79%-4:04 AMWNW2:36 PMENE9:40 PMS232,430 mi
23
88%-4:36 AMWNW3:48 PMENE10:29 PMS228,651 mi
24
95%-5:05 AMW5:01 PME11:19 PMS225,468 mi
25
97%-5:34 AMW6:16 PME--
26
100%-6:03 AMW7:33 PMESE12:11 AMS223,214 mi
27
100%-6:36 AMWSW8:52 PMESE1:05 AMS222,137 mi
28
98%-7:13 AMWSW10:10 PMESE2:02 AMS222,353 mi
29
93%-7:57 AMWSW11:26 PMESE3:04 AMS223,820 mi
30
85%-8:49 AMWSW-4:07 AMS226,341 mi

Humidity Comfort Levels in April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Humidity Comfort Levels in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Wind Speed in April 2021 in Thornton181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mphMarMay
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Hourly Wind Speed in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Hourly Wind Direction in 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in April 2021 in Thornton

History:20232022JFMAprMJJASOND20202019
Atmospheric Pressure in April 2021 in Thornton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgMarMay
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.

See all nearby weather stations

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