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May 2020 Weather History at James M Cox Dayton International Airport United States

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

James M Cox Dayton International Airport Temperature History May 2020

History:20222021JFMAMayJJASOND20192018
Temperature history in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°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 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Hourly Temperature in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJuncoolwarmcoldhotvery 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 May 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Cloud Cover in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Daily Precipitation in May 2020 at James M Cox Dayton International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 inAprJun
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in May 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Observed Weather in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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
Fri, May 1 Light Rain, Mist0.02 in-RA, BR
Sun, May 3 Thunderstorm with Rain, Rain, Light Rain, Mist0.36 inTSRA, RA, -RA, BR
Tue, May 5 Rain, Light Rain, Mist0.10 inRA, -RA, BR
Wed, May 6 Light Rain0.01 in-RA
Fri, May 8 Heavy Rain, Rain, Light Rain, Mist0.26 in+RA, RA, -RA, BR
Sun, May 10 Thunderstorm with Light Rain, Light Rain0.16 in-TSRA, -RA
Mon, May 11 Light Rain0.01 in-RA
Thu, May 14 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Light Rain0.06 inVCTS, -TSRA, -RA
Fri, May 15 Rain, Light Rain, Mist, Patches of Fog0.22 inRA, -RA, BR, BCFG
Sat, May 16 Light Rain, Fog, Patches of Fog0.04 in-RA, FG, BCFG
Sun, May 17 Light Rain0.00 in-RA
Mon, May 18 Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist1.75 inTSRA, +RA, RA, -RA, BR
Tue, May 19 Heavy Rain, Rain, Light Rain, Mist1.68 in+RA, RA, -RA, BR
Wed, May 20 Light Rain, Mist0.01 in-RA, BR
Thu, May 21 Light Rain, Mist0.01 in-RA, BR
Sat, May 23 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Mist, Patches of Fog0.08 inTS, VCTS, -TSRA, TSRA, BR, BCFG
Mon, May 25 Thunderstorm in the Vicinity, Heavy Rain, Rain, Light Rain0.38 inVCTS, +RA, RA, -RA
Tue, May 26 MistBR
Wed, May 27 Light Rain0.00 in-RA
Thu, May 28 Rain, Light Rain, Mist0.16 inRA, -RA, BR
Fri, May 29 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Rain, Rain, Light Rain0.43 inTS, VCTS, TSRA, RA, -RA

Hours of Daylight and Twilight in May 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Hours of Daylight and Twilight in May 2020 at James M Cox Dayton International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAprJunnightnightdaydayMay 113 hr, 56 minMay 113 hr, 56 minMay 3114 hr, 48 minMay 3114 hr, 48 minMay 1114 hr, 17 minMay 1114 hr, 17 minMay 2114 hr, 35 minMay 2114 hr, 35 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 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Sunrise & Sunset with Twilight in May 2020 at James M Cox Dayton International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJun6:10 AM6:10 AMMay 318:59 PMMay 318:59 PM6:36 AM6:36 AMMay 18:31 PMMay 18:31 PM6:25 AM6:25 AMMay 118:41 PMMay 118:41 PM6:16 AM6:16 AMMay 218:51 PMMay 218:51 PM
The solar day over the course of May 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 May 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Solar Elevation and Azimuth in May 2020 at James M Cox Dayton International AirportMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJun00101020203030404050506060700010102020303040405050606070
northeastsouthwest
Solar elevation and azimuth over the course of May 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 May 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Moon Rise, Set & Phases in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunMay 76:46 AMMay 76:46 AMMay 221:39 PMMay 221:39 PMJun 53:13 PMJun 53:13 PM7:51 PM7:51 PM6:50 AM6:50 AM6:21 AM6:21 AM8:57 PM8:57 PM9:09 PM9:09 PM6:50 AM6:50 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 2020IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
63%-3:29 AMWNW1:41 PMENE8:57 PMS230,734 mi
2
74%-4:07 AMWNW2:53 PMENE9:50 PMS227,856 mi
3
84%-4:41 AMWNW4:06 PME10:42 PMS225,515 mi
4
92%-5:12 AMW5:20 PME11:34 PMS223,982 mi
5
95%-5:44 AMW6:35 PME--
6
98%-6:16 AMW7:51 PMESE12:27 AMS223,481 mi
7
100%-6:50 AMWSW9:07 PMESE1:21 AMS224,134 mi
8
99%-7:29 AMWSW10:21 PMESE2:18 AMS225,930 mi
9
95%-8:13 AMWSW11:31 PMESE3:17 AMS228,718 mi
10
89%-9:04 AMWSW-4:17 AMS232,228 mi
11
81%12:33 AMESE10:00 AMWSW-5:17 AMS236,121 mi
12
71%1:27 AMESE11:01 AMWSW-6:14 AMS240,047 mi
13
61%2:11 AMESE12:02 PMWSW-7:07 AMS243,694 mi
14
50%2:48 AMESE1:04 PMWSW-7:56 AMS246,821 mi
15
41%3:20 AMESE2:04 PMWSW-8:42 AMS249,265 mi
16
31%3:47 AMESE3:03 PMW-9:25 AMS250,941 mi
17
23%4:13 AME4:01 PMW-10:06 AMS251,835 mi
18
15%4:36 AME4:58 PMW-10:46 AMS251,988 mi
19
9%5:00 AME5:56 PMW-11:26 AMS251,486 mi
20
4%5:25 AMENE6:55 PMWNW-12:07 PMS250,436 mi
21
1%5:51 AMENE7:56 PMWNW-12:50 PMS248,958 mi
22
0%6:21 AMENE8:57 PMWNW-1:36 PMS247,164 mi
23
1%6:56 AMENE9:59 PMWNW-2:25 PMS245,153 mi
24
4%7:37 AMENE10:59 PMWNW-3:16 PMS242,999 mi
25
10%8:26 AMENE11:55 PMWNW-4:10 PMS240,755 mi
26
17%9:22 AMENE--5:05 PMS238,455 mi
27
26%-12:45 AMWNW10:24 AMENE6:00 PMS236,132 mi
28
37%-1:30 AMWNW11:31 AMENE6:53 PMS233,828 mi
29
50%-2:08 AMWNW12:41 PMENE7:45 PMS231,616 mi
30
60%-2:42 AMWNW1:52 PMENE8:36 PMS229,607 mi
31
72%-3:14 AMW3:03 PME9:25 PMS227,953 mi

Humidity Comfort Levels in May 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Humidity Comfort Levels in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Wind Speed in May 2020 at James M Cox Dayton International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 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 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Hourly Wind Speed in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Hourly Wind Direction in 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2020 at James M Cox Dayton International Airport

History:20222021JFMAMayJJASOND20192018
Atmospheric Pressure in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.6 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.

Reports by Month

Reports by Month at James M Cox Dayton International Airport1940195019601970198019902000201020201948194819491949195019501951195119521952195319531954195419551955195619561957195719581958195919591960196019611961196219621963196319641964196519651966196619671967196819681969196919701970197119711972197219731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in May 2020 at James M Cox Dayton International Airport Spring 2020

Number of Reports by Day in May 2020 at James M Cox Dayton International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131005050100100AprJun
regularspecialcorrection
The number of reports per day.

Reports by Hour in May 2020 at James M Cox Dayton International Airport Spring 2020

Reports by Hour in May 2020 at James M Cox Dayton International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
regularspecialcorrection
Indication of what types of reports were recorded during each hour.

This report graphically illustrates the historical weather reports recorded by the weather station at James M Cox Dayton International Airport in May 2020.

METAR Reports

Airport weather stations throughout the world routinely issue METAR weather reports . Such reports are used by pilots, air traffic controllers, meteorologists, climatologists, and other researchers. They are published via radio transmission and on the internet. We have been collecting and archiving published METAR reports since 2011, and have found third-party sources for archived reports from years prior to that.

ISD Reports

The Integrated Surface Database (ISD), maintained and published by NOAA's National Center for Environmental Information , consists of hourly and synoptic weather reports from a variety of sources. We use ISD data to complement and backfill for our METAR archive.

Other Data

The sources for the averages shown in the daily temperature chart are discussed in greater detail on this station's Averages Report.

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

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