Addison weather in May

In May, Addison sees average daytime highs of 82°F and overnight lows near 65°F, with 5.4 in of rain across 11.1 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 79°F in the first days to 85°F by the end. The sky is clear or mostly clear about 36% of the time in May, and the air most often feels muggy.

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 Addison's 12th-clearest and 3rd-windiest month. For the whole year in context, see Addison's year-round climate.

Daytime high
82°
5th warmest
Overnight low
65°
8th coldest
Rainfall
5.4 in
11.1 wet days
Daylight
13 h 42 min
5:33 AM – 7:14 PM
Cloud cover
55%
12th clearest
Wind
10 mph
3rd windiest
Solar energy
5.73 kWh/m²
Travel score
6.0
out of 10

Addison is town in Dallas County, Texas, United States.

Density
1,367/km²
people per km²
Founded
1846

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 79°F in the first days to 85°F by the end.

A typical May day in Addison reaches about 82°F in the afternoon and slips back to 65°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 89°F. Set against its neighbours, May runs about 7°F warmer than April and about 7°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17860
27860
37960
47961
57961
67962
78062
88062
98063
108063
118163
128164
138164
148164
158264
168265
178265
188265
198366
208366
218366
228367
238467
248467
258468
268568
278568
288569
298569
308669
318669

How May really feels in Addison

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.

Addison weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan56° / 38°2.86.90.410.14.1
Feb60° / 41°2.97.50.510.85.0
Mar67° / 48°3.99.20.211.76.4
Apr75° / 56°4.38.4012.87.2
May82° / 65°5.411.1013.76.0
Jun89° / 73°3.48.4014.14.3
Jul94° / 76°1.860143.2
Aug94° / 76°2.15.3013.23.3
Sep87° / 69°2.86.3012.25.3
Oct77° / 58°3.97.8011.27.4
Nov66° / 47°3.67.10.110.36.6
Dec57° / 40°3.67.10.29.94.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35149
45149
55149
65050
75050
85050
95050
104951
115050
124951
135050
145149
155050
165050
175149
185149
195149
205149
215149
225248
235347
245347
255347
265446
275446
285545
295545
305644
315644

Chance of precipitation in May

Any precipitation

Addison gets around 5.4 in of rain over 11.1 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
235
335
435
536
636
736
836
936
1036
1135
1235
1334
1434
1534
1634
1733
1833
1934
2034
2134
2234
2335
2435
2535
2635
2735
2835
2935
3035
3135

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 47% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1371921193
2361922213
3341922223
4321822234
5311723254
6291723265
7281624275
8271524295
9261524306
10251424316
11231425326
12221425337
13211325347
14201325357
15191324368
16181324378
17171324389
18161223409
19141223419
201312224310
211112224410
221012214611
23912214711
24711214912
25611205112
26510205213
27410195314
2839195415
2939195217
3028185418
3128185220

Wind in May

Winds average 10 mph in May.

Across May, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

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 5:46 AM to 5:25 AM, and sunset from 7:03 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:467:03
213.35:457:04
313.35:447:05
413.45:437:05
513.45:427:06
613.45:417:07
713.55:407:08
813.55:397:08
913.55:387:09
1013.55:377:10
1113.65:377:11
1213.65:367:11
1313.65:357:12
1413.65:347:13
1513.75:337:14
1613.75:337:14
1713.75:327:15
1813.75:317:16
1913.85:317:17
2013.85:307:17
2113.85:307:18
2213.85:297:19
2313.85:287:19
2413.95:287:20
2513.95:277:21
2613.95:277:21
2713.95:267:22
2813.95:267:23
2914.05:267:23
3014.05:257:24
3114.05:257:25

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.73 kWh/m².

For context, solar energy here swings from a low near 2.56 kWh/m² to a high of 6.79 kWh/m² in July across the year — May's 5.73 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Addison?

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

6.0
Sightseeing
5th-best month of the year
6.7
Beach & pool
4th-best month of the year

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

What to pack for Addison in May

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

In May, Addison sees daytime highs around 82°F and nights near 65°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Addison in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Addison peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 17UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May10Very high
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Addison 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 Addison is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar10Good
Apr11Good
May14Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Addison?

Addison sits at 33.0°N, 96.8°W, 636 ft above sea level, in United States. The nearest listed city is Carrollton, 3.7 mi away.

Topography around Addison

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

Within 2 miles, the terrain around Addison has only modest variations in elevation — a maximum elevation change of 161 ft around an average of 617 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 397 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 873 ft.

The land around Addison is covered by artificial surfaces (68%) within 2 miles, artificial surfaces (58%) and trees (25%) within 10 miles, and grassland (48%) and trees (24%) within 50 miles.

2 miles
161 ft
10 miles
397 ft
50 miles
873 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Carrollton 3.7 mi · Farmers Branch 4.3 mi · Richardson 5.6 mi · University Park 8.1 mi · Plano 8.7 mi · The Colony 9.3 mi · Coppell 11 mi · Lewisville 11 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 Addison (32.9618°, -96.8292°, elevation 636 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).