May 2021 Weather History in San Luis United States

The data for this report comes from the San Luis Valley Regional Airport. See all nearby weather stations

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

San Luis Temperature History May 2021

Temperature history in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313110°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°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 San Luis

Hourly Temperature in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJunvery coldcoldcoolcomfortable
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 May 2021 in San Luis

Cloud Cover in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 San Luis

Daily Precipitation in May 2021 in San Luis1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inAprJun
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in May 2021 in San Luis

Snow Depth in May 2021 in San Luis1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 San Luis

Observed Weather in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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
Mon, May 3 Light Rain, Haze, Smoke0.02 in-RA, IWC61, IWCA61, HZ, IWC05, IWCA05
Thu, May 6 Freezing Fog, Mist0.00 inIWCA35, FZFG, IWCA10, BR
Fri, May 7 HazeHZ
Mon, May 10 Light Rain0.01 in-RA
Tue, May 11 Light Snow, Light Rain, Mist0.09 in-SN, -RA, BR
Thu, May 13 MistBR
Mon, May 17 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Light Rain, Mist0.14 inTS, VCTS, -TSRA, -RA, BR
Tue, May 18 Snow, Light Snow, Rain, Light Rain, Fog, Mist0.89 inSN, -SN, RA, -RA, FG, BR
Wed, May 19 Thunderstorm, Thunderstorm in the Vicinity, Light Rain, Mist0.00 inTS, VCTS, -RA, BR
Fri, May 21 Haze0.00 inHZ
Sat, May 22 Thunderstorm in the Vicinity0.00 inVCTS
Sun, May 23 Thunderstorm in the Vicinity, Light Rain0.00 inVCTS, -RA
Sun, May 30 Thunderstorm in the Vicinity, HazeVCTS, HZ
Mon, May 31 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist0.63 inTS, VCTS, TSRA, +RA, RA, -RA, BR

Hours of Daylight and Twilight in May 2021 in San Luis

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 San Luis

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 San Luis

Solar Elevation and Azimuth in May 2021 in San LuisMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJun0010102020303040405050606070001010202030304040505060607070
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 San Luis

Moon Rise, Set & Phases in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 269:32 PMApr 269:32 PMMay 111:01 PMMay 111:01 PMMay 265:15 AMMay 265:15 AM7:31 PM7:31 PM6:42 AM6:42 AM6:00 AM6:00 AM8:08 PM8:08 PM7:36 PM7:36 PM5:53 AM5:53 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%12:26 AMESE10:00 AMWSW-5:13 AMS229,617 mi
2
64%1:24 AMESE11:04 AMWSW-6:14 AMS233,292 mi
3
50%2:12 AMESE12:11 PMWSW-7:12 AMS237,042 mi
4
42%2:52 AMESE1:16 PMWSW-8:04 AMS240,606 mi
5
32%3:25 AMESE2:18 PMWSW-8:51 AMS243,802 mi
6
23%3:53 AMESE3:19 PMW-9:35 AMS246,525 mi
7
15%4:19 AME4:17 PMW-10:17 AMS248,730 mi
8
9%4:44 AME5:15 PMW-10:57 AMS250,414 mi
9
4%5:08 AME6:12 PMW-11:38 AMS251,601 mi
10
1%5:33 AMENE7:10 PMWNW-12:18 PMS252,319 mi
11
0%6:00 AMENE8:08 PMWNW-1:01 PMS252,590 mi
12
1%6:30 AMENE9:06 PMWNW-1:45 PMS252,421 mi
13
4%7:04 AMENE10:04 PMWNW-2:32 PMS251,798 mi
14
8%7:44 AMENE11:01 PMWNW-3:21 PMS250,693 mi
15
15%8:31 AMENE11:53 PMWNW-4:12 PMS249,071 mi
16
23%9:23 AMENE--5:03 PMS246,910 mi
17
32%-12:40 AMWNW10:21 AMENE5:54 PMS244,213 mi
18
42%-1:22 AMWNW11:24 AMENE6:45 PMS241,030 mi
19
50%-2:00 AMWNW12:28 PMENE7:34 PMS237,473 mi
20
64%-2:33 AMWNW1:35 PMENE8:22 PMS233,720 mi
21
75%-3:04 AMW2:42 PME9:10 PMS230,024 mi
22
84%-3:33 AMW3:52 PME9:59 PMS226,694 mi
23
92%-4:03 AMW5:04 PME10:50 PMS224,065 mi
24
98%-4:35 AMWSW6:19 PMESE11:45 PMS222,443 mi
25
99%-5:11 AMWSW7:36 PMESE--
26
100%-5:53 AMWSW8:53 PMESE12:44 AMS222,049 mi
27
99%-6:43 AMWSW10:06 PMESE1:48 AMS222,961 mi
28
95%-7:42 AMWSW11:11 PMESE2:54 AMS225,093 mi
29
88%-8:47 AMWSW-3:59 AMS228,201 mi
30
79%12:05 AMESE9:55 AMWSW-5:00 AMS231,944 mi
31
69%12:50 AMESE11:03 AMWSW-5:57 AMS235,950 mi

Humidity Comfort Levels in May 2021 in San Luis

Humidity Comfort Levels in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 San Luis

Wind Speed in May 2021 in San Luis1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mphAprJun
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in May 2021 in San Luis

Hourly Wind Speed in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 San Luis

Hourly Wind Direction in 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 San Luis

Atmospheric Pressure in May 2021 in San Luis18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.6 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 San Luis Valley Regional Airport page.

See all nearby weather stations

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