Aurora weather in May

In May, Aurora sees average daytime highs of 71°F and overnight lows near 46°F, with 2.5 in of precipitation across 9.3 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 66°F in the first days to 75°F by the end. The sky is clear or mostly clear about 29% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 36 min by month's end. Set against the rest of the year, May is Aurora's 12th-clearest and 3rd-windiest month. For the whole year in context, see Aurora's year-round climate.

Daytime high
71°
5th warmest
Overnight low
46°
8th coldest
Precipitation
2.5 in
9.3 wet days
Daylight
14 h 12 min
4:50 AM – 7:01 PM
Cloud cover
57%
12th clearest
Wind
7 mph
3rd windiest
Solar energy
6.81 kWh/m²
Travel score
6.7
out of 10

Aurora is city in Arapahoe, Adams, and Douglas counties, Colorado, United States.

Density
900/km²
people per km²
Founded
1891

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 66°F in the first days to 75°F by the end.

A typical May day in Aurora reaches about 71°F in the afternoon and slips back to 46°F overnight — a 25°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 84°F. Set against its neighbours, May runs about 9°F warmer than April and about 11°F cooler than June.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16540
26540
36641
46641
56742
66742
76742
86843
96843
106944
116944
126944
137045
147045
157145
167146
177146
187146
197247
207247
217347
227348
237348
247348
257449
267449
277549
287549
297550
307650
317651

How May really feels in Aurora

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.

Aurora 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
Jan43° / 20°0.53.83.99.50.6
Feb46° / 22°0.53.8410.41.5
Mar55° / 29°1.45.83.911.74.0
Apr61° / 36°2.18.13.4135.4
May71° / 46°2.59.30.714.26.7
Jun82° / 55°1.67.6014.86.4
Jul88° / 61°1.57.5014.54.8
Aug86° / 59°1.46.4013.65.7
Sep78° / 51°1.14.80.412.37.8
Oct65° / 39°1.25.11.810.96.8
Nov52° / 28°0.84.449.83.4
Dec43° / 20°0.53.33.69.20.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 25% of May, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45644
55644
65743
75743
85743
95743
105743
115644
125644
135545
145545
155446
165347
175347
185248
195248
205248
215149
225149
235248
245248
255347
265446
275446
285545
295545
305743
315842

Chance of precipitation in May

Any precipitationSnow

Aurora gets around 2.5 in of rain and snow over 9.3 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 precipitation averages around 30% and peaks near 34% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1286
2286
3285
4285
5285
6275
7274
8274
9274
10274
11284
12283
13283
14293
15293
16303
17303
18312
19312
20322
21321
22331
23331
24331
25331
26341
27341
28330
29330
30330
31320

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
27991
28991
29991
30991
31991

Wind in May

Winds average 7 mph in May.

Across May, daily wind ranges from about 6 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
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:07 AM to 4:39 AM, and sunset from 6:46 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:076:46
213.75:066:47
313.75:046:48
413.85:036:49
513.85:026:50
613.85:016:51
713.95:006:52
813.94:586:53
913.94:576:54
1014.04:566:55
1114.04:556:56
1214.14:546:57
1314.14:536:58
1414.14:526:59
1514.14:517:00
1614.24:507:01
1714.24:497:02
1814.24:487:03
1914.34:477:04
2014.34:477:05
2114.34:467:06
2214.44:457:07
2314.44:447:07
2414.44:447:08
2514.44:437:09
2614.54:427:10
2714.54:427:11
2814.54:417:12
2914.54:407:12
3014.64:407:13
3114.64:397:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.81 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 7.44 kWh/m² in June across the year — May's 6.81 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.6Intense
46.6Intense
56.6Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.1Intense
307.1Intense
317.1Intense
Planning a trip in May

Is May a good time to visit Aurora?

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

6.7
Sightseeing
3rd-best month of the year
4.3
Beach & pool
5th-best month of the year

May is a reasonable time to visit Aurora for sightseeing.

What to pack for Aurora in May

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

In May, Aurora sees daytime highs around 71°F and nights near 46°F. Pack sun protection. Worth having: a warm layer and rain gear. About 9 days see rain.

sun protectiona warm layerrain gear

UV index in Aurora 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 Aurora peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 13UV 11Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar7High
Apr6High
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec2Low

Air quality in Aurora 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 Aurora is worst in August — around 21 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (May, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateAug 1620 µg/m³May 1113 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb15Moderate
Mar16Moderate
Apr13Moderate
May13Moderate
Jun14Moderate
Jul14Moderate
Aug21Moderate
Sep13Moderate
Oct15Moderate
Nov15Moderate
Dec16Moderate
Location & terrain

Where is Aurora?

Aurora sits at 39.7°N, 104.8°W, 5,407 ft above sea level, in United States. The nearest listed city is Commerce City, 7.5 mi away.

Topography around Aurora

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

Within 2 miles, the terrain around Aurora has only modest variations in elevation — a maximum elevation change of 302 ft around an average of 5,430 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 951 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,688 ft.

The land around Aurora is covered by artificial surfaces (69%) within 2 miles, artificial surfaces (44%) and grassland (34%) within 10 miles, and grassland (50%) and trees (26%) within 50 miles.

2 miles
302 ft
10 miles
951 ft
50 miles
9,688 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Commerce City 7.5 mi · Denver 8.1 mi · Greenwood Village 9.9 mi · Englewood 9.9 mi · Centennial 11 mi · Castlewood 11 mi · Sherrelwood 12 mi · Southglenn 12 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 Aurora (39.7294°, -104.8319°, elevation 5,407 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).