May 2021 Weather History in Crystal Lake Illinois, United States

The data for this report comes from the Chicago O'Hare International Airport. See all nearby weather stations

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

Crystal Lake Temperature History May 2021

Temperature history in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°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 Crystal Lake

Hourly Temperature in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJunvery coldcoldcoolwarmhotcomfortable
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 Crystal Lake

Cloud Cover in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Crystal Lake

Daily Precipitation in May 2021 in Crystal Lake1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 Crystal Lake

Snow Depth in May 2021 in Crystal Lake1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 Crystal Lake

Observed Weather in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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, Light Drizzle0.07 in-RA, IWC61, IWCA61, IWC51, IWCA51, -DZ
Thu, May 6 Light Rain0.06 inIWC61, IWCA61, -RA
Sat, May 8 Rain, Light Rain0.09 inRA, -RA
Sun, May 9 Light Rain, Mist0.13 in-RA, BR
Sat, May 15 Light Rain0.01 in-RA
Tue, May 18 Light Rain0.07 in-RA
Wed, May 19 Rain, Light Rain0.03 inRA, -RA
Sun, May 23 Rain, Light Rain, Mist0.02 inRA, -RA, BR
Mon, May 24 Fog, MistFG, BR
Tue, May 25 Light Rain0.00 in-RA
Wed, May 26 Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Heavy Rain, Rain, Light Rain, Mist0.77 inVCTS, +TSRA, -TSRA, +RA, RA, -RA, BR
Thu, May 27 Light Rain0.03 in-RA
Fri, May 28 Thunderstorm in the Vicinity, Thunderstorm with Light Drizzle, Heavy Rain, Rain, Light Rain, Light Drizzle, Mist0.50 inVCTS, -TSDZ, +RA, RA, -RA, -DZ, BR

Hours of Daylight and Twilight in May 2021 in Crystal Lake

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 Crystal Lake

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 Crystal Lake

Solar Elevation and Azimuth in May 2021 in Crystal LakeMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJun0010102020303040405050606000101020203030404050506060
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 Crystal Lake

Moon Rise, Set & Phases in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AM7:26 PM7:26 PM6:23 AM6:23 AM5:40 AM5:40 AM8:08 PM8:08 PM7:36 PM7:36 PM5:29 AM5:29 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
76%12:34 AMSE9:30 AMSW-5:02 AMS229,450 mi
2
65%1:31 AMSE10:35 AMSW-6:03 AMS233,114 mi
3
50%2:18 AMESE11:44 AMWSW-7:01 AMS236,867 mi
4
43%2:55 AMESE12:52 PMWSW-7:53 AMS240,444 mi
5
32%3:25 AMESE1:59 PMWSW-8:41 AMS243,661 mi
6
23%3:50 AMESE3:03 PMW-9:25 AMS246,408 mi
7
15%4:13 AME4:05 PMW-10:07 AMS248,638 mi
8
9%4:34 AME5:05 PMW-10:48 AMS250,346 mi
9
4%4:55 AME6:06 PMW-11:28 AMS251,556 mi
10
1%5:17 AMENE7:07 PMWNW-12:09 PMS252,295 mi
11
0%5:40 AMENE8:08 PMWNW-12:51 PMS252,587 mi
12
1%6:07 AMENE9:10 PMWNW-1:35 PMS252,439 mi
13
4%6:39 AMENE10:10 PMWNW-2:21 PMS251,838 mi
14
8%7:17 AMNE11:08 PMNW-3:10 PMS250,757 mi
15
14%8:01 AMNE--4:01 PMS249,160 mi
16
22%-12:01 AMNW8:54 AMNE4:52 PMS247,025 mi
17
31%-12:47 AMNW9:53 AMENE5:43 PMS244,353 mi
18
41%-1:27 AMWNW10:58 AMENE6:34 PMS241,192 mi
19
50%-2:02 AMWNW12:05 PMENE7:23 PMS237,649 mi
20
63%-2:32 AMWNW1:15 PMENE8:11 PMS233,900 mi
21
74%-2:59 AMWNW2:27 PME8:59 PMS230,195 mi
22
84%-3:25 AMW3:40 PME9:47 PMS226,841 mi
23
92%-3:51 AMW4:56 PME10:39 PMS224,171 mi
24
98%-4:19 AMWSW6:15 PMESE11:33 PMS222,494 mi
25
99%-4:51 AMWSW7:36 PMESE--
26
100%-5:29 AMWSW8:57 PMESE12:33 AMS222,038 mi
27
99%-6:15 AMWSW10:13 PMSE1:36 AMS222,888 mi
28
95%-7:12 AMSW11:18 PMSE2:42 AMS224,967 mi
29
88%-8:17 AMSW-3:48 AMS228,037 mi
30
79%12:12 AMESE9:27 AMWSW-4:49 AMS231,758 mi
31
69%12:54 AMESE10:38 AMWSW-5:46 AMS235,760 mi

Humidity Comfort Levels in May 2021 in Crystal Lake

Humidity Comfort Levels in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Crystal Lake

Wind Speed in May 2021 in Crystal Lake1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 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 Crystal Lake

Hourly Wind Speed in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Crystal Lake

Hourly Wind Direction in 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 Crystal Lake

Atmospheric Pressure in May 2021 in Crystal Lake18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHg30.6 inHg30.6 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 Chicago O'Hare International Airport page.

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