Hillcrest Heights weather in May

In May, Hillcrest Heights sees average daytime highs of 75°F and overnight lows near 57°F, with 3.6 in of rain across 11.1 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 71°F in the first days to 79°F by the end. The sky is clear or mostly clear about 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Hillcrest Heights's 12th-clearest and 7th-windiest month. For the whole year in context, see Hillcrest Heights's year-round climate.

Daytime high
75°
5th warmest
Overnight low
57°
8th coldest
Rainfall
3.6 in
11.1 wet days
Daylight
14 h 06 min
5:01 AM – 7:07 PM
Cloud cover
62%
12th clearest
Wind
6 mph
7th windiest
Solar energy
5.75 kWh/m²
Travel score
6.6
out of 10

Hillcrest Heights is census designated place in Maryland, United States.

Density
2,553/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 71°F in the first days to 79°F by the end.

A typical May day in Hillcrest Heights reaches about 75°F in the afternoon and slips back to 57°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 87°F. Set against its neighbours, May runs about 8°F warmer than April and about 9°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17153
27153
37153
47154
57254
67254
77255
87355
97355
107355
117356
127356
137456
147456
157457
167457
177557
187558
197558
207658
217659
227659
237759
247760
257860
267861
277861
287961
297962
307962
318062

How May really feels in Hillcrest Heights

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.

Hillcrest Heights weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan44° / 29°3.08.62.79.60.7
Feb47° / 31°2.88.22.410.51.5
Mar55° / 38°3.910.31.611.73.6
Apr66° / 48°3.39.90.1136.0
May75° / 57°3.611.1014.16.6
Jun84° / 67°3.510.8014.75.5
Jul88° / 71°3.811.9014.44.3
Aug86° / 70°3.59.7013.55.1
Sep79° / 62°4.29.2012.36.8
Oct68° / 51°3.47.80116.7
Nov57° / 40°2.97.30.29.94.3
Dec48° / 34°3.48.81.39.31.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24456
34456
44456
54555
64456
74456
84555
94555
104555
114456
124456
134456
144357
154357
164258
174258
184258
194258
204159
214159
224159
234159
244159
254159
264258
274258
284456
294456
304456
314456

Chance of precipitation in May

Any precipitation

Hillcrest Heights gets around 3.6 in of rain over 11.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

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

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
535
635
735
836
936
1036
1136
1236
1336
1436
1536
1636
1736
1836
1936
2036
2136
2236
2336
2436
2536
2635
2735
2835
2935
3035
3134

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 53% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
173161010
271161120
369171220
469171220
567181320
666181420
765191420
863191530
962191630
1061201630
1160201640
1258201750
1359191750
1458191760
1557191770
1656191870
1755191880
1854191890
19522018100
20502019110
21482019131
22462019141
23442120151
24422120161
25402120171
26392220181
27372220192
28352320202
29342320212
30322420222
31312421222

Wind in May

Winds average 6 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
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 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 5:17 AM to 4:50 AM, and sunset from 6:53 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:176:53
213.65:166:54
313.75:156:55
413.75:136:56
513.75:126:57
613.85:116:58
713.85:106:59
813.95:097:00
913.95:087:01
1013.95:077:02
1114.05:067:03
1214.05:057:04
1314.05:047:05
1414.05:037:06
1514.15:027:06
1614.15:017:07
1714.15:007:08
1814.24:597:09
1914.24:587:10
2014.24:577:11
2114.34:577:12
2214.34:567:13
2314.34:557:14
2414.34:547:14
2514.44:547:15
2614.44:537:16
2714.44:537:17
2814.44:527:18
2914.54:517:18
3014.54:517:19
3114.54:507:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.75 kWh/m².

For context, solar energy here swings from a low near 1.98 kWh/m² to a high of 6.16 kWh/m² in June across the year — May's 5.75 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
316.0Bright
Planning a trip in May

Hazard calendar for Hillcrest Heights

In seasonPeak

None of Hillcrest Heights's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Hillcrest Heights sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Hillcrest Heights?

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

6.6
Sightseeing
3rd-best month of the year
5.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Hillcrest Heights for sightseeing.

What to pack for Hillcrest Heights in May

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

In May, Hillcrest Heights sees daytime highs around 75°F and nights near 57°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Hillcrest Heights in May

The nearest coast averages about 58°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 32 mi away) is warmest in August at about 78°F and coldest in February near 37°F.

It's comfortable for a long swim from Jun 16 to Oct 6 — about 3.7 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan38Bracing
Feb37Bracing
Mar40Bracing
Apr47Bracing
May58Bracing
Jun68Refreshing
Jul76Warm
Aug78Warm
Sep74Refreshing
Oct65Cool
Nov54Bracing
Dec45Bracing

UV index in Hillcrest Heights in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hillcrest Heights peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 9Dec 19UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Hillcrest Heights 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 Hillcrest Heights is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 129 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar13Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Moderate
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Hillcrest Heights?

Hillcrest Heights sits at 38.8°N, 77.0°W, 276 ft above sea level, in United States. The nearest listed city is Suitland-Silver Hill, 1.9 mi away.

Topography around Hillcrest Heights

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

Within 2 miles, the terrain around Hillcrest Heights has only modest variations in elevation — a maximum elevation change of 295 ft around an average of 236 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 446 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,539 ft.

The land around Hillcrest Heights is covered by trees (56%) and artificial surfaces (34%) within 2 miles, trees (57%) and artificial surfaces (27%) within 10 miles, and trees (58%) within 50 miles.

2 miles
295 ft
10 miles
446 ft
50 miles
1,539 ft
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Suitland-Silver Hill 1.9 mi · Suitland 2.5 mi · Glassmanor 2.5 mi · Oxon Hill 2.5 mi · Oxon Hill-Glassmanor 2.5 mi · Camp Springs 3.7 mi · Capitol Riverfront 3.7 mi · Capitol Hill 4.3 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 Hillcrest Heights (38.8329°, -76.9594°, elevation 276 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).