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May 2017 Weather History in Raleigh North Carolina, United States

The data for this report comes from the Raleigh-Durham International Airport. See all nearby weather stations

This report shows the past weather for Raleigh, providing a weather history for May 2017. It features all historical weather data series we have available, including the Raleigh temperature history for May 2017. You can drill down from year to month and even day level reports by clicking on the graphs.

Raleigh Temperature History May 2017

History:20192018JFMAMayJJASOND20162015
Temperature history in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313140°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Hourly Temperature in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJuncoolwarmhotcoldcomfortable
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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Cloud Cover in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Daily Precipitation in May 2017 in Raleigh1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 inAprJun
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in May 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Observed Weather in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 1 Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist0.22 in-TSRA, TSRA, RA, -RA, BR
Fri, May 5 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Light Rain, Mist1.74 in+TSRA, -TSRA, TSRA, +RA, -RA, BR
Sat, May 6 Light Rain0.02 in-RA
Tue, May 9 Light Rain, Mist0.01 in-RA, BR
Wed, May 10 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Light Rain, Mist, Patches of Fog0.45 inTS, +TSRA, -TSRA, -RA, BR, BCFG
Thu, May 11 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Fog, Mist, Patches of Fog0.48 inTS, +TSRA, -TSRA, FG, BR, BCFG
Fri, May 12 Light Drizzle, Mist0.01 in-DZ, BR
Sat, May 13 Thunderstorm in the Vicinity, Light Rain, Light Drizzle, Mist0.29 inVCTS, -RA, -DZ, BR
Sun, May 14 Fog, Mist, Patches of FogFG, BR, BCFG
Fri, May 19 Thunderstorm0.00 inTS
Sun, May 21 Light Rain, Light Drizzle, Mist0.00 in-RA, -DZ, BR
Mon, May 22 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.12 inTS, -TSRA, TSRA, -RA, BR
Tue, May 23 Rain, Light Rain, Light Drizzle, Mist0.87 inRA, -RA, -DZ, BR
Wed, May 24 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Light Drizzle, Mist0.26 in+TSRA, -TSRA, TSRA, -RA, -DZ, BR
Thu, May 25 Thunderstorm, Thunderstorm with Heavy Rain, Light Rain, Mist0.82 inTS, +TSRA, -RA, BR
Sun, May 28 Light Rain0.08 in-RA
Mon, May 29 Light Rain0.07 in-RA
Tue, May 30 Light Rain, Mist0.07 in-RA, BR

Hours of Daylight and Twilight in May 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Hours of Daylight and Twilight in May 2017 in Raleigh1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAprJunnightnightdaydayMay 113 hr, 39 minMay 113 hr, 39 minMay 3114 hr, 25 minMay 3114 hr, 25 minMay 1113 hr, 58 minMay 1113 hr, 58 minMay 2114 hr, 13 minMay 2114 hr, 13 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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Sunrise & Sunset with Twilight in May 2017 in Raleigh1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJun6:00 AM6:00 AMMay 318:24 PMMay 318:24 PM6:22 AM6:22 AMMay 18:01 PMMay 18:01 PM6:12 AM6:12 AMMay 118:09 PMMay 118:09 PM6:04 AM6:04 AMMay 218:17 PMMay 218:17 PM
The solar day over the course of May 2017. 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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Solar Elevation and Azimuth in May 2017 in RaleighMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2017. 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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Moon Rise, Set & Phases in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 268:17 AMApr 268:17 AMMay 105:43 PMMay 105:43 PMMay 253:45 PMMay 253:45 PM6:48 AM6:48 AM8:19 PM8:19 PM7:59 PM7:59 PM6:57 AM6:57 AM6:07 AM6:07 AM8:16 PM8:16 PM
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 2017IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
37%-12:43 AMWNW11:14 AMENE6:26 PMS231,249 mi
2
50%-1:35 AMWNW12:17 PMENE7:21 PMS234,505 mi
3
60%-2:21 AMWNW1:19 PMENE8:12 PMS237,744 mi
4
70%-3:02 AMWNW2:20 PMENE9:01 PMS240,795 mi
5
79%-3:38 AMW3:19 PME9:47 PMS243,549 mi
6
87%-4:12 AMW4:17 PME10:32 PMS245,953 mi
7
93%-4:44 AMW5:13 PME11:15 PMS247,987 mi
8
97%-5:16 AMW6:09 PME11:59 PMS249,649 mi
9
99%-5:48 AMW7:05 PMESE--
10
100%-6:21 AMWSW7:59 PMESE12:43 AMS250,940 mi
11
100%-6:57 AMWSW8:53 PMESE1:28 AMS251,845 mi
12
98%-7:35 AMWSW9:46 PMESE2:14 AMS252,334 mi
13
95%-8:16 AMWSW10:37 PMESE3:01 AMS252,356 mi
14
90%-9:01 AMWSW11:26 PMESE3:49 AMS251,850 mi
15
83%-9:50 AMWSW-4:38 AMS250,753 mi
16
75%12:12 AMESE10:42 AMWSW-5:27 AMS249,017 mi
17
66%12:54 AMESE11:37 AMWSW-6:15 AMS246,628 mi
18
50%1:34 AMESE12:34 PMWSW-7:04 AMS243,621 mi
19
45%2:12 AMESE1:33 PMWSW-7:52 AMS240,097 mi
20
35%2:48 AME2:35 PMW-8:41 AMS236,229 mi
21
24%3:24 AME3:39 PMW-9:30 AMS232,268 mi
22
15%4:01 AME4:45 PMW-10:21 AMS228,529 mi
23
7%4:39 AME5:54 PMW-11:14 AMS225,364 mi
24
2%5:21 AMENE7:05 PMWNW-12:10 PMS223,111 mi
25
0%6:07 AMENE8:16 PMWNW-1:09 PMS222,032 mi
26
1%6:59 AMENE9:25 PMWNW-2:11 PMS222,257 mi
27
6%7:56 AMENE10:29 PMWNW-3:13 PMS223,749 mi
28
13%8:58 AMENE11:27 PMWNW-4:14 PMS226,313 mi
29
23%10:03 AMENE--5:12 PMS229,642 mi
30
33%-12:17 AMWNW11:08 AMENE6:07 PMS233,388 mi
31
44%-1:01 AMWNW12:11 PMENE6:57 PMS237,219 mi

Humidity Comfort Levels in May 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Humidity Comfort Levels in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Wind Speed in May 2017 in Raleigh1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Hourly Wind Speed in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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.
Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Growing Degree Days in May 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Growing Degree Days in May 2017 in RaleighMay1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131600°F600°F800°F800°F1,000°F1,000°F1,200°F1,200°F1,400°F1,400°F1,600°F1,600°FAprJun
The growing degree days accumulated from reported temperatures over the course of May 2017 (solid black line), placed over the average accumulation (faint line), with 25th to 75th and 10th to 90th percentile bands. Gaps indicate days without enough temperature reports to calculate a complete daily value; totals following gaps may therefore be understated.

Hourly Wind Direction in 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Hourly Wind Direction in 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 2017 in Raleigh

History:20192018JFMAMayJJASOND20162015
Atmospheric Pressure in May 2017 in Raleigh18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 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 Raleigh-Durham International Airport page.

See all nearby weather stations

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