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September 2020 Weather History in Des Moines United States

The data for this report comes from the Des Moines International Airport. See all nearby weather stations

This report shows the past weather for Des Moines, providing a weather history for September 2020. It features all historical weather data series we have available, including the Des Moines temperature history for September 2020. You can drill down from year to month and even day level reports by clicking on the graphs.

Des Moines Temperature History September 2020

History:20222021JFMAMJJASepOND20192018
Temperature history in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303030°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FAugOct
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 September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Hourly Temperature in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcoldcoolwarmhotvery coldcomfortable
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 September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Cloud Cover in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Daily Precipitation in September 2020 in Des Moines181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 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 inAugOct
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Observed Weather in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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, Sep 1 Thunderstorm, Thunderstorm with Rain, Light Rain0.10 inTS, TSRA, -RA
Wed, Sep 2 MistBR
Sun, Sep 6 Light Rain0.00 in-RA
Mon, Sep 7 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain0.15 inTS, -TSRA, TSRA, -RA
Tue, Sep 8 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Light Drizzle, Mist1.48 in+TSRA, -TSRA, TSRA, -RA, -DZ, BR
Wed, Sep 9 Heavy Rain, Rain, Light Rain, Light Drizzle, Mist0.46 in+RA, RA, -RA, -DZ, BR
Thu, Sep 10 Rain, Light Rain, Light Drizzle, Mist0.54 inRA, -RA, -DZ, BR
Fri, Sep 11 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Rain, Light Rain, Light Drizzle, Fog, Mist0.93 in+TSRA, -TSRA, RA, -RA, -DZ, FG, BR
Sat, Sep 12 Light Rain, Light Drizzle, Fog, Mist0.00 in-RA, -DZ, FG, BR
Sun, Sep 13 Fog, MistFG, BR
Wed, Sep 23 MistBR
Sun, Sep 27 Rain, Light Rain, Mist0.27 inRA, -RA, BR
Mon, Sep 28 Light Rain0.02 in-RA
Tue, Sep 29 Light Rain0.00 in-RA

Hours of Daylight and Twilight in September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Hours of Daylight and Twilight in September 2020 in Des Moines181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 11 minSep 2212 hr, 11 minnightnightdaydaySep 113 hr, 6 minSep 113 hr, 6 minSep 3011 hr, 46 minSep 3011 hr, 46 minSep 1112 hr, 38 minSep 1112 hr, 38 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 September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Sunrise & Sunset with Twilight in September 2020 in Des Moines181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAugOct6:41 AM6:41 AMSep 17:46 PMSep 17:46 PM7:10 AM7:10 AMSep 306:56 PMSep 306:56 PM6:51 AM6:51 AMSep 117:29 PMSep 117:29 PM7:01 AM7:01 AMSep 217:12 PMSep 217:12 PM
The solar day over the course of September 2020. 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 September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Solar Elevation and Azimuth in September 2020 in Des MoinesSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct0010102020303040405000101020203030404050
northeastsouthwest
Solar elevation and azimuth over the course of September 2020. 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 September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Moon Rise, Set & Phases in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctSep 212:23 AMSep 212:23 AMSep 176:01 AMSep 176:01 AMOct 14:06 PMOct 14:06 PM8:01 PM8:01 PM6:53 AM6:53 AM6:56 AM6:56 AM7:57 PM7:57 PM7:17 PM7:17 PM7:45 AM7:45 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.
Sep 2020IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
99%-5:50 AMWSW8:01 PMESE12:41 AMS246,268 mi
2
100%-6:53 AMWSW8:26 PME1:26 AMS248,127 mi
3
99%-7:54 AMW8:50 PME2:09 AMS249,728 mi
4
96%-8:54 AMW9:12 PME2:50 AMS250,981 mi
5
91%-9:53 AMW9:35 PME3:31 AMS251,784 mi
6
85%-10:52 AMWNW9:59 PMENE4:11 AMS252,028 mi
7
77%-11:52 AMWNW10:25 PMENE4:52 AMS251,613 mi
8
69%-12:52 PMWNW10:55 PMENE5:35 AMS250,462 mi
9
59%-1:53 PMWNW11:30 PMENE6:21 AMS248,544 mi
10
50%-2:54 PMWNW-7:09 AMS245,883 mi
11
39%12:12 AMENE3:52 PMWNW-8:01 AMS242,578 mi
12
29%1:03 AMENE4:46 PMWNW-8:55 AMS238,809 mi
13
19%2:03 AMENE5:35 PMWNW-9:51 AMS234,835 mi
14
11%3:10 AMENE6:17 PMWNW-10:47 AMS230,980 mi
15
5%4:23 AMENE6:54 PMWNW-11:42 AMS227,596 mi
16
1%5:39 AMENE7:26 PMWNW-12:36 PMS225,015 mi
17
0%6:56 AME7:57 PMW-1:29 PMS223,490 mi
18
3%8:13 AME8:26 PMW-2:22 PMS223,153 mi
19
8%9:30 AME8:57 PMWSW-3:15 PMS223,991 mi
20
16%10:47 AMESE9:30 PMWSW-4:09 PMS225,853 mi
21
27%12:03 PMESE10:07 PMWSW-5:05 PMS228,494 mi
22
38%1:16 PMESE10:50 PMWSW-6:03 PMS231,620 mi
23
50%2:24 PMESE11:39 PMWSW-7:02 PMS234,943 mi
24
61%3:24 PMESE--8:00 PMS238,224 mi
25
71%-12:35 AMWSW4:16 PMESE8:56 PMS241,287 mi
26
80%-1:36 AMWSW4:59 PMESE9:49 PMS244,026 mi
27
88%-2:39 AMWSW5:34 PMESE10:38 PMS246,392 mi
28
93%-3:42 AMWSW6:04 PMESE11:24 PMS248,371 mi
29
96%-4:45 AMWSW6:31 PMESE--
30
97%-5:46 AMW6:54 PME12:07 AMS249,967 mi

Humidity Comfort Levels in September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Humidity Comfort Levels in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Wind Speed in September 2020 in Des Moines181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Hourly Wind Speed in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Hourly Wind Direction in 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in September 2020 in Des Moines

History:20222021JFMAMJJASepOND20192018
Atmospheric Pressure in September 2020 in Des Moines1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgAugOct
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 Des Moines International Airport page.

See all nearby weather stations

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