May 2021 Weather History in Allen Texas, United States

The data for this report comes from the Dallas/Fort Worth International Airport. See all nearby weather stations

This report shows the past weather for Allen, providing a weather history for May 2021. It features all historical weather data series we have available, including the Allen temperature history for May 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

Allen Temperature History May 2021

Temperature history in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313145°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°FAprJun
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 May 2021 in Allen

Hourly Temperature in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJuncoolcomfortablewarmhot
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.
Map
Marker
© OpenStreetMap contributors

Compare Allen to another city:

Map

Cloud Cover in May 2021 in Allen

Cloud Cover in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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 May 2021 in Allen

Daily Precipitation in May 2021 in Allen1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 inAprJun
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in May 2021 in Allen

Snow Depth in May 2021 in Allen1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 inAprJun
The daily measured snow depth, where available.

Observed Weather in May 2021 in Allen

Observed Weather in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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, May 1 Mist0.00 inBR
Sun, May 2 Rain, Light Rain, Mist0.06 inRA, -RA, BR
Mon, May 3 Distant Lightning, Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Rain, Thunderstorm without Precipitation, Light Rain0.07 inIWCA12, TS, IWC17, IWCIV01, VCTS, IWC95, IWCA91, IWC61, IWCA61, -RA
Mon, May 10 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Light Drizzle, Haze, Mist0.88 inTS, VCTS, +TSRA, -TSRA, TSRA, RA, -RA, -DZ, HZ, BR
Tue, May 11 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Light Rain, Light Drizzle, Mist0.67 inTS, VCTS, +TSRA, -TSRA, TSRA, +RA, -RA, -DZ, BR
Wed, May 12 Light Drizzle, Mist0.00 in-DZ, BR
Sun, May 16 Thunderstorm in the Vicinity, Heavy Rain, Rain, Light Rain, Mist1.22 inVCTS, +RA, RA, -RA, BR
Mon, May 17 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist0.61 inVCTS, -TSRA, TSRA, RA, -RA, BR
Tue, May 18 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist0.61 inTS, VCTS, +TSRA, -TSRA, TSRA, +RA, RA, -RA, BR
Wed, May 19 Light Rain0.00 in-RA
Thu, May 20 Light Rain0.02 in-RA
Sat, May 22 Heavy Rain, Rain, Light Rain, Light Drizzle, Mist0.42 in+RA, RA, -RA, -DZ, BR
Sun, May 23 Light Rain0.03 in-RA
Mon, May 24 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Heavy Rain, Rain, Light Rain, Light Drizzle, Mist0.53 inTS, VCTS, -TSRA, +RA, RA, -RA, -DZ, BR
Tue, May 25 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist0.48 inTS, VCTS, +TSRA, -TSRA, TSRA, RA, -RA, BR
Fri, May 28 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.00 inTS, -TSRA, -RA
Mon, May 31 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist1.70 in+TSRA, -TSRA, TSRA, +RA, RA, -RA, BR

Hours of Daylight and Twilight in May 2021 in Allen

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 May 2021 in Allen

The solar day over the course of May 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 May 2021 in Allen

Solar Elevation and Azimuth in May 2021 in AllenMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJun001010202030304040505060607070001010202030304040505060607070
northeastsouthwest
Solar elevation and azimuth over the course of May 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 May 2021 in Allen

Moon Rise, Set & Phases in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 2610:32 PMApr 2610:32 PMMay 112:01 PMMay 112:01 PMMay 266:15 AMMay 266:15 AM7:49 PM7:49 PM7:12 AM7:12 AM6:31 AM6:31 AM8:23 PM8:23 PM7:50 PM7:50 PM6:27 AM6:27 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.
May 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
75%12:37 AMESE10:36 AMWSW-5:37 AMS229,532 mi
2
64%1:35 AMESE11:40 AMWSW-6:38 AMS233,200 mi
3
50%2:25 AMESE12:45 PMWSW-7:35 AMS236,951 mi
4
42%3:07 AMESE1:47 PMWSW-8:27 AMS240,522 mi
5
32%3:42 AMESE2:48 PMWSW-9:15 AMS243,729 mi
6
23%4:13 AMESE3:46 PMW-9:59 AMS246,464 mi
7
15%4:41 AME4:42 PMW-10:41 AMS248,682 mi
8
9%5:08 AME5:37 PMW-11:21 AMS250,379 mi
9
4%5:34 AME6:32 PMW-12:01 PMS251,578 mi
10
1%6:02 AMENE7:27 PMWNW-12:42 PMS252,307 mi
11
0%6:31 AMENE8:23 PMWNW-1:24 PMS252,589 mi
12
1%7:03 AMENE9:20 PMWNW-2:09 PMS252,431 mi
13
4%7:39 AMENE10:16 PMWNW-2:56 PMS251,819 mi
14
8%8:20 AMENE11:11 PMWNW-3:45 PMS250,726 mi
15
15%9:07 AMENE--4:36 PMS249,117 mi
16
22%-12:04 AMWNW10:00 AMENE5:27 PMS246,968 mi
17
32%-12:52 AMWNW10:57 AMENE6:18 PMS244,284 mi
18
42%-1:36 AMWNW11:57 AMENE7:09 PMS241,112 mi
19
50%-2:15 AMWNW1:00 PMENE7:58 PMS237,561 mi
20
64%-2:51 AMWNW2:03 PMENE8:46 PMS233,810 mi
21
75%-3:24 AMW3:08 PME9:34 PMS230,110 mi
22
84%-3:56 AMW4:15 PME10:23 PMS226,767 mi
23
92%-4:29 AMW5:24 PME11:14 PMS224,118 mi
24
95%-5:04 AMWSW6:35 PMESE--
25
98%-5:42 AMWSW7:50 PMESE12:09 AMS222,469 mi
26
100%-6:27 AMWSW9:05 PMESE1:08 AMS222,043 mi
27
99%-7:19 AMWSW10:17 PMESE2:12 AMS222,924 mi
28
95%-8:18 AMWSW11:22 PMESE3:17 AMS225,028 mi
29
88%-9:23 AMWSW-4:22 AMS228,117 mi
30
79%12:17 AMESE10:30 AMWSW-5:24 AMS231,848 mi
31
69%1:04 AMESE11:36 AMWSW-6:20 AMS235,851 mi

Humidity Comfort Levels in May 2021 in Allen

Humidity Comfort Levels in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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 May 2021 in Allen

Wind Speed in May 2021 in Allen1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphAprJun
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in May 2021 in Allen

Hourly Wind Speed in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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 Allen

Hourly Wind Direction in 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in May 2021 in Allen

Atmospheric Pressure in May 2021 in Allen18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgAprJun
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 Dallas/Fort Worth International Airport page.

See all nearby weather stations

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.