McDonough weather in May

In May, McDonough sees average daytime highs of 81°F and overnight lows near 61°F, with 2.9 in of rain across 9.5 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 78°F in the first days to 84°F by the end. The sky is clear or mostly clear about 34% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 14 hours by month's end. Set against the rest of the year, May is McDonough's 5th-clearest and 8th-windiest month. For the whole year in context, see McDonough's year-round climate.

Daytime high
81°
5th warmest
Overnight low
61°
8th coldest
Rainfall
2.9 in
9.5 wet days
Daylight
13 h 42 min
5:41 AM – 7:25 PM
Cloud cover
56%
5th clearest
Wind
6 mph
8th windiest
Solar energy
6.12 kWh/m²
Travel score
6.4
out of 10

McDonough is city in and the county seat of Henry County, Georgia, United States.

Density
706/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 78°F in the first days to 84°F by the end.

A typical May day in McDonough reaches about 81°F in the afternoon and slips back to 61°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 89°F. Set against its neighbours, May runs about 8°F warmer than April and about 6°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17756
27757
37857
47857
57858
67858
77958
87959
97959
108059
118060
128060
138060
148161
158161
168161
178162
188262
198262
208262
218263
228263
238363
248364
258364
268364
278365
288465
298465
308466
318466

How May really feels in McDonough

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

McDonough weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan54° / 36°4.010.10.6103.3
Feb58° / 39°4.39.50.310.84.3
Mar65° / 45°4.39.90.111.76.0
Apr73° / 52°3.18.8012.87.0
May81° / 61°2.99.5013.76.4
Jun87° / 69°3.813.9014.24.4
Jul89° / 72°4.015.30143.7
Aug88° / 71°3.813013.24.1
Sep83° / 65°3.68.6012.26.1
Oct74° / 53°2.96.6011.27.5
Nov64° / 43°3.68.2010.36.1
Dec56° / 38°4.29.70.29.83.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45347
55248
65248
75347
85347
95248
105248
115347
125347
135347
145347
155347
165347
175347
185347
195248
205248
215347
225248
235248
245248
255149
265149
275149
285050
294951
304852
314753

Chance of precipitation in May

Any precipitation

McDonough gets around 2.9 in of rain over 9.5 wet days in May, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 40% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
129
229
329
429
529
629
729
829
929
1029
1130
1230
1330
1429
1529
1629
1729
1829
1930
2030
2130
2231
2332
2433
2534
2634
2735
2836
2937
3038
3140

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
153231860
252231960
350232070
448232180
546232290
6452322100
7432323110
8422323120
9412324120
10392324130
11382325140
12372325150
13362325160
14342326170
15332326180
16322327180
17312227191
18302227201
19292227211
20282228221
21262128232
22252129232
23232130242
24222130253
25202031263
26182031273
27172031284
28152031295
29141931305
30131931316
31121831327

Wind in May

Winds average 6 mph in May.

Across May, daily wind ranges from about 5 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:54 AM to 5:33 AM, and sunset from 7:13 PM to 7:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:547:13
213.35:537:14
313.45:527:15
413.45:517:15
513.45:507:16
613.55:497:17
713.55:497:18
813.55:487:19
913.55:477:19
1013.65:467:20
1113.65:457:21
1213.65:447:22
1313.65:437:22
1413.75:437:23
1513.75:427:24
1613.75:417:25
1713.75:407:25
1813.85:407:26
1913.85:397:27
2013.85:387:28
2113.85:387:28
2213.95:377:29
2313.95:377:30
2413.95:367:30
2513.95:367:31
2613.95:357:32
2714.05:357:32
2814.05:347:33
2914.05:347:34
3014.05:337:34
3114.05:337:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.12 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 6.12 kWh/m² in May across the year — May's 6.12 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Intense
36.0Intense
46.0Intense
56.0Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in May

Is May a good time to visit McDonough?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4
Sightseeing
3rd-best month of the year
6.7
Beach & pool
2nd-best month of the year

May is a reasonable time to visit McDonough for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for McDonough in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, McDonough sees daytime highs around 81°F and nights near 61°F. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in McDonough in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in McDonough peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 9Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in McDonough in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in McDonough is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (January, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1621 µg/m³Jan 118 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar13Moderate
Apr12Moderate
May15Moderate
Jun18Moderate
Jul21Moderate
Aug18Moderate
Sep13Moderate
Oct11Good
Nov10Good
Dec8Good
Location & terrain

Where is McDonough?

McDonough sits at 33.4°N, 84.1°W, 866 ft above sea level, in United States. The nearest listed city is Stockbridge, 8.1 mi away.

Topography around McDonough

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of McDonough.

Within 2 miles, the terrain around McDonough has only modest variations in elevation — a maximum elevation change of 207 ft around an average of 823 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 489 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,490 ft.

The land around McDonough is covered by trees (56%) and artificial surfaces (22%) within 2 miles, trees (68%) and grassland (21%) within 10 miles, and trees (82%) within 50 miles.

2 miles
207 ft
10 miles
489 ft
50 miles
1,490 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Stockbridge 8.1 mi · Griffin 16 mi · Conyers 17 mi · Forest Park 17 mi · Riverdale 17 mi · Fayetteville 18 mi · Stonecrest 18 mi · Candler-McAfee 21 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for McDonough (33.4473°, -84.1469°, elevation 866 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).