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May 2021 Weather History in Flagstaff United States

The data for this report comes from the Flagstaff Pulliam Airport. See all nearby weather stations

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

Flagstaff Temperature History May 2021

History:20232022JFMAMayJJASOND20202019
Temperature history in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313120°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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Hourly Temperature in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJunvery coldcoolcomfortablewarmcold
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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Cloud Cover in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Daily Precipitation in May 2021 in Flagstaff1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Snow Depth in May 2021 in Flagstaff1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Observed Weather in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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
Thu, May 13 HazeHZ
Mon, May 17 Light Rain0.03 in-RA
Thu, May 20 Light Rain0.00 in-RA
Fri, May 21 Rain, Light Rain, Mist0.49 inRA, -RA, BR

Hours of Daylight and Twilight in May 2021 in Flagstaff

History:20232022JFMAMayJJASOND20202019
Hours of Daylight and Twilight in May 2021 in Flagstaff1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAprJunnightnightdaydayMay 113 hr, 38 minMay 113 hr, 38 minMay 3114 hr, 22 minMay 3114 hr, 22 minMay 1113 hr, 55 minMay 1113 hr, 55 minMay 2114 hr, 10 minMay 2114 hr, 10 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 May 2021 in Flagstaff

History:20232022JFMAMayJJASOND20202019
Sunrise & Sunset with Twilight in May 2021 in Flagstaff1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJun5:13 AM5:13 AMMay 317:35 PMMay 317:35 PM5:35 AM5:35 AMMay 17:12 PMMay 17:12 PM5:25 AM5:25 AMMay 117:20 PMMay 117:20 PM5:18 AM5:18 AMMay 217:28 PMMay 217:28 PM
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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Solar Elevation and Azimuth in May 2021 in FlagstaffMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Moon Rise, Set & Phases in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 268:32 PMApr 268:32 PMMay 1112:01 PMMay 1112:01 PMMay 264:15 AMMay 264:15 AM6:55 PM6:55 PM6:10 AM6:10 AM5:29 AM5:29 AM7:30 PM7:30 PM6:57 PM6:57 PM5:24 AM5:24 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%-9:32 AMWSW-4:39 AMS229,678 mi
2
64%12:44 AMESE10:37 AMWSW-5:40 AMS233,357 mi
3
50%1:32 AMESE11:42 AMWSW-6:37 AMS237,105 mi
4
42%2:13 AMESE12:46 PMWSW-7:29 AMS240,664 mi
5
32%2:47 AMESE1:47 PMWSW-8:17 AMS243,853 mi
6
23%3:17 AMESE2:46 PMW-9:01 AMS246,567 mi
7
15%3:43 AME3:44 PMW-9:43 AMS248,763 mi
8
8%4:09 AME4:40 PMW-10:23 AMS250,439 mi
9
4%4:34 AME5:36 PMW-11:03 AMS251,617 mi
10
1%5:00 AMENE6:32 PMWNW-11:44 AMS252,327 mi
11
0%5:29 AMENE7:30 PMWNW-12:26 PMS252,591 mi
12
1%6:00 AMENE8:27 PMWNW-1:11 PMS252,414 mi
13
4%6:35 AMENE9:24 PMWNW-1:58 PMS251,783 mi
14
9%7:16 AMENE10:20 PMWNW-2:47 PMS250,669 mi
15
15%8:03 AMENE11:12 PMWNW-3:38 PMS249,038 mi
16
23%8:56 AMENE--4:29 PMS246,867 mi
17
32%-12:00 AMWNW9:53 AMENE5:20 PMS244,161 mi
18
42%-12:43 AMWNW10:55 AMENE6:11 PMS240,971 mi
19
50%-1:21 AMWNW11:58 AMENE7:00 PMS237,408 mi
20
64%-1:55 AMWNW1:03 PMENE7:48 PMS233,654 mi
21
75%-2:27 AMW2:10 PME8:36 PMS229,962 mi
22
85%-2:58 AMW3:18 PME9:25 PMS226,642 mi
23
92%-3:29 AMW4:28 PME10:16 PMS224,028 mi
24
98%-4:03 AMWSW5:42 PMESE11:11 PMS222,425 mi
25
99%-4:40 AMWSW6:57 PMESE--
26
100%-5:24 AMWSW8:13 PMESE12:11 AMS222,053 mi
27
99%-6:15 AMWSW9:26 PMESE1:14 AMS222,988 mi
28
95%-7:14 AMWSW10:31 PMESE2:20 AMS225,139 mi
29
88%-8:19 AMWSW11:25 PMESE3:25 AMS228,262 mi
30
79%-9:27 AMWSW-4:26 AMS232,012 mi
31
68%12:10 AMESE10:34 AMWSW-5:22 AMS236,019 mi

Humidity Comfort Levels in May 2021 in Flagstaff

History:20232022JFMAMayJJASOND20202019
Humidity Comfort Levels in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Wind Speed in May 2021 in Flagstaff1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mph70 mph70 mphAprJun
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in May 2021 in Flagstaff

History:20232022JFMAMayJJASOND20202019
Hourly Wind Speed in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Hourly Wind Direction in 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Flagstaff

History:20232022JFMAMayJJASOND20202019
Atmospheric Pressure in May 2021 in Flagstaff18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.7 inHg29.7 inHg29.8 inHg29.8 inHg29.9 inHg29.9 inHg30.0 inHg30.0 inHg30.1 inHg30.1 inHg30.2 inHg30.2 inHg30.3 inHg30.3 inHg30.4 inHg30.4 inHg30.5 inHg30.5 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 Flagstaff Pulliam Airport page.

See all nearby weather stations

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