Piqua weather in May

In May, Piqua sees average daytime highs of 71°F and overnight lows near 53°F, with 4.3 in of rain across 13.6 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 67°F in the first days to 75°F by the end. The sky is clear or mostly clear about 23% 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 Piqua's 7th-clearest and 8th-windiest month. For the whole year in context, see Piqua's year-round climate.

Daytime high
71°
5th warmest
Overnight low
53°
8th coldest
Rainfall
4.3 in
13.6 wet days
Daylight
14 h 12 min
5:27 AM – 7:40 PM
Cloud cover
65%
7th clearest
Wind
8 mph
8th windiest
Solar energy
5.75 kWh/m²
Travel score
6.0
out of 10

Piqua is city in Miami County, Ohio, United States.

Density
675/km²
people per km²
Founded
1807

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 67°F in the first days to 75°F by the end.

A typical May day in Piqua reaches about 71°F in the afternoon and slips back to 53°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 59°F and 83°F. Set against its neighbours, May runs about 10°F warmer than April and about 8°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16648
26748
36749
46749
56849
66850
76950
86950
96951
106951
117051
127051
137052
147152
157152
167153
177153
187253
197254
207254
217354
227355
237355
247455
257456
267456
277456
287557
297557
307557
317658

How May really feels in Piqua

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.

Piqua weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 21°3.110.35.49.50.0
Feb38° / 24°2.58.94.810.40.0
Mar49° / 32°3.6112.911.71.9
Apr62° / 42°4.512.60.8134.8
May71° / 53°4.313.6014.26.0
Jun80° / 62°4.012014.86.2
Jul83° / 65°3.411.4014.65.9
Aug81° / 64°3.310013.66.5
Sep76° / 56°2.87.8012.37.2
Oct63° / 45°2.98.70.210.95.7
Nov50° / 35°3.391.29.82.3
Dec39° / 26°3.1103.79.20.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43763
53763
63664
73664
83763
93862
103862
113961
123961
133961
143862
153862
163961
173961
183862
193763
203862
213862
223862
233862
243862
253862
263961
273961
284060
294060
304060
314060

Chance of precipitation in May

Any precipitation

Piqua gets around 4.3 in of rain over 13.6 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 44% and peaks near 46% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
246
346
446
546
646
746
846
946
1046
1146
1245
1345
1445
1545
1644
1744
1844
1944
2043
2143
2242
2342
2441
2541
2641
2740
2840
2940
3040
3139

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 65% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
18412400
28312500
38213500
48014600
57914700
67814800
77615810
87515910
974151010
1071161120
1171161120
1269161230
1369161230
1466171340
1566171340
1664171450
1764171450
1862171560
1961171660
2060171670
2157181780
2256181880
2355181890
2454181990
25531819100
26521820100
27521820100
28501821110
29511721110
30491722110
31481722121

Wind in May

Winds average 8 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
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light 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 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 5:44 AM to 5:16 AM, and sunset from 7:25 PM to 7:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:447:25
213.75:427:26
313.85:417:27
413.85:407:28
513.85:397:29
613.95:387:30
713.95:367:31
813.95:357:32
914.05:347:33
1014.05:337:34
1114.05:327:35
1214.15:317:36
1314.15:307:37
1414.25:297:38
1514.25:287:39
1614.25:277:40
1714.25:267:41
1814.35:257:42
1914.35:247:43
2014.35:237:43
2114.45:227:44
2214.45:227:45
2314.45:217:46
2414.45:207:47
2514.55:197:48
2614.55:197:49
2714.55:187:50
2814.55:187:50
2914.65:177:51
3014.65:167:52
3114.65:167:53

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 1.63 kWh/m² to a high of 6.25 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
15.3Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.0Intense
Planning a trip in May

Is May a good time to visit Piqua?

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

6.0
Sightseeing
4th-best month of the year
4.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Piqua for sightseeing.

What to pack for Piqua in May

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

In May, Piqua sees daytime highs around 71°F and nights near 53°F. Worth packing: rain gear and sun protection. About 14 days see rain.

rain gearsun protection

UV index in Piqua 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 Piqua peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 21UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Piqua 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 Piqua is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1217 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar13Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Piqua?

Piqua sits at 40.1°N, 84.2°W, 873 ft above sea level, in United States. The nearest listed city is Troy, 7.5 mi away.

Topography around Piqua

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

Within 2 miles, the terrain around Piqua has only modest variations in elevation — a maximum elevation change of 200 ft around an average of 915 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 404 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 951 ft.

The land around Piqua is covered by artificial surfaces (27%), trees (25%) and cropland (23%) within 2 miles, cropland (65%) within 10 miles, and cropland (69%) within 50 miles.

2 miles
200 ft
10 miles
404 ft
50 miles
951 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Troy 7.5 mi · Sidney 11 mi · Vandalia 18 mi · Huber Heights 22 mi · Trotwood 24 mi · Fairborn 25 mi · Riverside 26 mi · Dayton 27 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 Piqua (40.1448°, -84.2424°, elevation 873 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).