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Summer 2021 Weather History in St. Louis Missouri, United States

The data for this report comes from the Lambert–St. Louis International Airport. See all nearby weather stations

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

St. Louis Temperature History in the Summer of 2021

History:202420232022202120202019201820172016
Temperature history in the Summer of 2021 in St. LouisJunJulAug40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FSpringFall
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 the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Hourly Temperature in the Summer of 2021 in St. LouisJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFallhotwarm
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 the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Cloud Cover in the Summer of 2021 in St. LouisJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFall
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 the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Daily Precipitation in the Summer of 2021 in St. LouisJunJulAug0.0 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 in3.5 in3.5 inSpringFall
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Snow Depth in the Summer of 2021 in St. LouisJunJulAug0.0 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 inSpringFall
The daily measured snow depth, where available.

Observed Weather in the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Observed Weather in the Summer of 2021 in St. LouisJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFall
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, Jun 1 Light Rain0.00 in-RA
Wed, Jun 2 Light Rain0.03 in-RA
Thu, Jun 3 Light Rain0.00 in-RA
Mon, Jun 7 Light Rain0.00 in-RA
Tue, Jun 8 Light Rain, Mist0.10 in-RA, BR
Wed, Jun 9 Light Rain, Haze, Mist0.00 in-RA, HZ, BR
Sat, Jun 19 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.36 inTS, +TSRA, -TSRA, TSRA, -RA, BR
Sun, Jun 20 Light Rain0.00 in-RA
Mon, Jun 21 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.21 in+TSRA, -TSRA, TSRA, -RA, BR
Thu, Jun 24 Thunderstorm, Light Rain0.01 inTS, -RA
Fri, Jun 25 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Fog, Mist1.95 inTS, +TSRA, -TSRA, TSRA, -RA, FG, BR
Sat, Jun 26 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Light Rain, Fog, Mist0.73 in+TSRA, -TSRA, -RA, FG, BR
Sun, Jun 27 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.24 inTS, -TSRA, -RA
Mon, Jun 28 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist1.59 inTS, +TSRA, -TSRA, TSRA, -RA, BR
Tue, Jun 29 ThunderstormTS
Wed, Jun 30 Thunderstorm, Rain, Light Rain0.11 inTS, RA, -RA
Thu, Jul 1 Heavy Rain, Rain, Light Rain, Mist0.65 in+RA, RA, -RA, BR
Wed, Jul 7 Rain, Light Rain0.02 inRA, -RA
Fri, Jul 9 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Mist1.14 inTS, +TSRA, -TSRA, BR
Sat, Jul 10 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Fog, Mist, Squall1.03 in+TSRA, -TSRA, TSRA, -RA, FG, BR, SQ
Sun, Jul 11 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.01 inTS, -TSRA, -RA
Mon, Jul 12 Rain, Light Rain0.11 inRA, -RA
Thu, Jul 15 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.22 inTS, -TSRA, TSRA, -RA, BR
Fri, Jul 16 Rain, Light Rain, Mist0.76 inRA, -RA, BR
Sat, Jul 17 Fog, MistFG, BR
Sun, Jul 18 HazeHZ
Fri, Jul 23 HazeHZ
Sun, Jul 25 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.64 inTS, +TSRA, -TSRA, TSRA, -RA, BR
Thu, Jul 29 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Mist0.16 inTS, -TSRA, TSRA, BR
Fri, Jul 30 Thunderstorm with Light Rain, Light Rain0.02 in-TSRA, -RA
Sat, Jul 31 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.06 inTS, -TSRA, -RA
Sun, Aug 1 Haze, MistHZ, BR
Sun, Aug 8 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.89 inTS, +TSRA, -TSRA, TSRA, -RA, BR
Mon, Aug 9 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Fog, Mist0.72 inTS, +TSRA, -TSRA, TSRA, RA, FG, BR
Tue, Aug 10 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain0.00 inTS, +TSRA, -TSRA, TSRA
Thu, Aug 12 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Light Rain, Mist0.91 inTS, +TSRA, -TSRA, -RA, BR
Fri, Aug 13 Fog, MistFG, BR
Tue, Aug 17 HazeHZ
Sat, Aug 21 Light Rain, Haze0.00 in-RA, HZ
Mon, Aug 23 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Light Rain0.48 inTS, +TSRA, -TSRA, -RA
Thu, Aug 26 Thunderstorm, Thunderstorm with Light Rain0.08 inTS, -TSRA
Fri, Aug 27 ThunderstormTS
Mon, Aug 30 Thunderstorm, Thunderstorm with Light Rain, Light Rain, Light Drizzle0.12 inTS, -TSRA, -RA, -DZ
Tue, Aug 31 Thunderstorm with Heavy Rain, Heavy Rain, Light Rain, Mist1.22 in+TSRA, +RA, -RA, BR

Hours of Daylight and Twilight in the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Hours of Daylight and Twilight in the Summer of 2021 in St. LouisJunJulAug0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFallJun 2014 hr, 52 minJun 2014 hr, 52 minnightnightdaydayAug 3113 hr, 2 minAug 3113 hr, 2 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 the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Sunrise & Sunset with Twilight in the Summer of 2021 in St. LouisJunJulAug2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFall5:35 AM5:35 AMJun 148:26 PMJun 148:26 PM6:29 AM6:29 AMAug 317:31 PMAug 317:31 PM
The solar day over the course of the Summer of 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 the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Solar Elevation and Azimuth in the Summer of 2021 in St. LouisJunJulAug12 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 AMSpringFall0010202030304050506060700010102030304040506070
northeastsouthwest
Solar elevation and azimuth in the the summer of 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 the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Moon Rise, Set & Phases in the Summer of 2021 in St. LouisJunJulAug12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallMay 112:01 PMMay 112:01 PMMay 266:15 AMMay 266:15 AMJun 105:53 AMJun 105:53 AMJun 241:40 PMJun 241:40 PMJul 98:17 PMJul 98:17 PMJul 239:38 PMJul 239:38 PMAug 88:51 AMAug 88:51 AMAug 227:03 AMAug 227:03 AMSep 67:52 PMSep 67:52 PMSep 206:55 PMSep 206:55 PM5:55 AM5:55 AM8:08 PM8:08 PM7:35 PM7:35 PM5:47 AM5:47 AM5:36 AM5:36 AM8:57 PM8:57 PM8:52 PM8:52 PM6:16 AM6:16 AM5:05 AM5:05 AM8:37 PM8:37 PM8:31 PM8:31 PM6:13 AM6:13 AM8:38 PM8:38 PM7:49 PM7:49 PM6:14 AM6:14 AM5:54 AM5:54 AM7:40 PM7:40 PM7:17 PM7:17 PM7:16 AM7:16 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.

Humidity Comfort Levels in the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Humidity Comfort Levels in the Summer of 2021 in St. LouisJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFall
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 the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Wind Speed in the Summer of 2021 in St. LouisJunJulAug0 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mph70 mph70 mph80 mph80 mphSpringFall
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Hourly Wind Speed in the Summer of 2021 in St. LouisJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFall
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 St. Louis

History:202420232022202120202019201820172016
Hourly Wind Direction in 2021 in St. LouisJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFall
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in the Summer of 2021 in St. Louis

History:202420232022202120202019201820172016
Atmospheric Pressure in the Summer of 2021 in St. LouisJunJulAug29.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgSpringFall
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 Lambert–St. Louis International Airport page.

See all nearby weather stations

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