Lockport weather in May

In May, Lockport sees average daytime highs of 60°F and overnight lows near 48°F, with 3.2 in of rain across 11.3 wet days and about 14.4 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 56°F in the first days to 65°F by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 14 h 54 min by month's end. Set against the rest of the year, May is Lockport's 5th-clearest and 9th-windiest month. For the whole year in context, see Lockport's year-round climate.

Daytime high
60°
5th warmest
Overnight low
48°
8th coldest
Rainfall
3.2 in
11.3 wet days
Daylight
14 h 30 min
4:57 AM – 7:25 PM
Cloud cover
62%
5th clearest
Wind
9 mph
9th windiest
Solar energy
5.96 kWh/m²
Travel score
4.7
out of 10

Lockport is city in Niagara County, New York, United States.

Density
943/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 56°F in the first days to 65°F by the end.

A typical May day in Lockport reaches about 60°F in the afternoon and slips back to 48°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 51°F and 70°F. Set against its neighbours, May runs about 10°F warmer than April and about 10°F cooler than June.

30°40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
15543
25544
35644
45644
55645
65645
75745
85746
95746
105846
115846
125847
135947
145947
155947
166048
176048
186049
196149
206149
216250
226250
236251
246351
256351
266452
276452
286453
296553
306553
316554

How May really feels in Lockport

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.

Lockport weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 22°3.114.112.49.20.0
Feb33° / 22°2.410.28.310.20.0
Mar39° / 28°2.910.85.311.60.1
Apr50° / 38°3.811.51.813.12.1
May60° / 48°3.211.3014.44.7
Jun70° / 59°3.511.1015.16.4
Jul77° / 66°3.610.9014.96.9
Aug76° / 65°3.010.2013.87.0
Sep70° / 59°3.410.3012.36.5
Oct58° / 48°3.712.70.110.84.1
Nov47° / 37°3.312.239.51.4
Dec38° / 29°3.3148.98.90.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34258
44258
54258
64159
74159
84159
94159
104159
114159
124159
134159
144159
154159
164159
174258
184258
194258
204357
214357
224555
234555
244555
254555
264555
274555
284555
294555
304555
314555

Chance of precipitation in May

Any precipitation

Lockport gets around 3.2 in of rain over 11.3 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 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
538
638
738
838
938
1038
1138
1238
1338
1438
1538
1637
1737
1836
1936
2035
2135
2235
2334
2434
2534
2634
2735
2835
2935
3035
3135

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
198200
298200
398200
497300
597300
697300
796400
896400
996400
1095500
1195500
1294600
1393610
1492710
1592710
1691810
1791810
1889920
19881020
20871030
21861130
22841240
23831250
24801361
25791461
26781471
27761581
28761581
29741691
307316101
317117102

Wind in May

Winds average 9 mph in May.

Across May, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 min at the start of May to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:16 AM to 4:44 AM, and sunset from 7:08 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:167:08
213.95:147:09
314.05:137:10
414.05:127:12
514.05:107:13
614.15:097:14
714.15:087:15
814.25:067:16
914.25:057:17
1014.25:047:19
1114.35:037:20
1214.35:017:21
1314.45:007:22
1414.44:597:23
1514.44:587:24
1614.54:577:25
1714.54:567:26
1814.54:557:27
1914.64:547:28
2014.64:537:29
2114.64:527:30
2214.74:517:31
2314.74:507:32
2414.74:497:33
2514.84:497:34
2614.84:487:35
2714.84:477:36
2814.84:467:37
2914.94:467:38
3014.94:457:39
3114.94:447:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.96 kWh/m².

For context, solar energy here swings from a low near 1.27 kWh/m² to a high of 6.34 kWh/m² in June across the year — May's 5.96 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in May

Is May a good time to visit Lockport?

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

4.7
Sightseeing
5th-best month of the year
0.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Lockport for sightseeing.

What to pack for Lockport in May

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

In May, Lockport sees daytime highs around 60°F and nights near 48°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Lockport in May

The nearest coast averages about 44°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 14 mi away) is warmest in August at about 71°F and coldest in March near 37°F.

It's comfortable for a long swim from Jul 15 to Sep 9 — about 1.9 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb38Bracing
Mar37Bracing
Apr39Bracing
May44Bracing
Jun58Bracing
Jul69Refreshing
Aug71Refreshing
Sep67Cool
Oct57Bracing
Nov47Bracing
Dec42Bracing

UV index in Lockport in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lockport peaks around June 20 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Lockport 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 Lockport is worst in May — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 2021 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar17Moderate
Apr18Moderate
May21Moderate
Jun20Moderate
Jul20Moderate
Aug17Moderate
Sep16Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Lockport?

Lockport sits at 43.2°N, 78.7°W, 614 ft above sea level, in United States. The nearest listed city is East Amherst, 11 mi away.

Topography around Lockport

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

Within 2 miles, the terrain around Lockport has only modest variations in elevation — a maximum elevation change of 331 ft around an average of 581 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 479 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,110 ft.

The land around Lockport is covered by trees (54%) and grassland (25%) within 2 miles, trees (49%), grassland (26%) and cropland (22%) within 10 miles, and water (44%) and trees (29%) within 50 miles.

2 miles
331 ft
10 miles
479 ft
50 miles
2,110 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: East Amherst 11 mi · North Tonawanda 12 mi · Amherst 14 mi · Eggertsville 16 mi · Grand Island 17 mi · Kenmore 17 mi · Depew 19 mi · Cheektowaga 19 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 Lockport (43.1706°, -78.6903°, elevation 614 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. 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).