Zachary weather in May

In May, Zachary sees average daytime highs of 84°F and overnight lows near 65°F, with 4.0 in of rain across 9.7 wet days and about 13.5 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 81°F in the first days to 87°F by the end. The sky is clear or mostly clear about 39% of the time in May, and the air most often feels muggy.

Daylight stretches from about 13 h 12 min at the start of May to 13 h 48 min by month's end. Set against the rest of the year, May is Zachary's 5th-clearest and 7th-windiest month. For the whole year in context, see Zachary's year-round climate.

Daytime high
84°
5th warmest
Overnight low
65°
8th coldest
Rainfall
4.0 in
9.7 wet days
Daylight
13 h 30 min
5:15 AM – 6:47 PM
Cloud cover
52%
5th clearest
Wind
6 mph
7th windiest
Solar energy
6.16 kWh/m²
Travel score
5.6
out of 10

Zachary is city in East Baton Rouge Parish, Louisiana, United States.

Density
265/km²
people per km²
Founded
1889

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 81°F in the first days to 87°F by the end.

A typical May day in Zachary reaches about 84°F in the afternoon and slips back to 65°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 90°F. Set against its neighbours, May runs about 7°F warmer than April and about 5°F cooler than June.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18161
28162
38262
48262
58262
68263
78263
88363
98364
108364
118364
128464
138465
148465
158465
168465
178565
188566
198566
208566
218567
228667
238667
248667
258668
268668
278768
288769
298769
308769
318769

How May really feels in Zachary

Once humidity and wind are folded in, May averages 4 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
4
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Zachary weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan60° / 42°5.19.610.25.0
Feb64° / 45°4.69.410.95.7
Mar71° / 51°4.810.311.86.6
Apr77° / 57°4.59.212.77.0
May84° / 65°4.09.713.55.6
Jun89° / 72°4.613.413.93.8
Jul90° / 74°4.916.613.83.2
Aug91° / 73°5.015.413.13.2
Sep87° / 69°3.89.912.24.7
Oct79° / 59°3.47.211.27.2
Nov69° / 49°3.78.110.46.9
Dec62° / 44°4.89.310.15.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25842
35842
45842
55842
65842
75842
85842
95941
105842
115941
125941
135941
146040
156040
166139
176139
186139
196139
206139
216040
226040
236040
245842
255842
265842
275743
285644
295644
305545
315545

Chance of precipitation in May

Any precipitation

Zachary gets around 4.0 in of rain over 9.7 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 31% and peaks near 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
128
227
327
427
527
627
727
827
927
1027
1127
1227
1328
1428
1529
1629
1730
1830
1931
2032
2133
2234
2334
2435
2536
2637
2738
2839
2939
3040
3141

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 58% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12318242780
22217242880
32117242990
42016243190
519162432100
618152333100
717142334110
817142335110
916132336120
1016132337120
1115122238130
1214122238130
1314112239140
1413112240150
1513102140160
1612102140170
171292140180
181192140190
191082041200
201082041220
21981941230
22871841250
23771841260
24771742280
25661642300
26561542320
27461441341
28351441361
29351340381
30251240401
31251139421

Wind in May

Winds average 6 mph in May.

Across May, daily wind ranges from about 5 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
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 12 min at the start of May to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 5:27 AM to 5:07 AM, and sunset from 6:37 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:276:37
213.25:266:38
313.25:256:38
413.35:246:39
513.35:236:40
613.35:226:40
713.35:216:41
813.45:206:42
913.45:206:43
1013.45:196:43
1113.45:186:44
1213.55:176:45
1313.55:176:45
1413.55:166:46
1513.55:156:47
1613.55:156:47
1713.65:146:48
1813.65:136:49
1913.65:136:49
2013.65:126:50
2113.65:126:50
2213.75:116:51
2313.75:116:52
2413.75:106:52
2513.75:106:53
2613.75:096:54
2713.85:096:54
2813.85:086:55
2913.85:086:55
3013.85:086:56
3113.85:076:57

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.16 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 6.16 kWh/m² in May across the year — May's 6.16 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Zachary?

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

5.6
Sightseeing
6th-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Zachary in May

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

In May, Zachary sees daytime highs around 84°F and nights near 65°F. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Zachary 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 Zachary peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJul 13UV 10Dec 20UV 3
UV index (midday)Level
Jan4Moderate
Feb6High
Mar6High
Apr10Very high
May10Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Zachary 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 Zachary is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1623 µg/m³Jan 249 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar11Good
Apr11Good
May15Moderate
Jun19Moderate
Jul24Moderate
Aug18Moderate
Sep13Moderate
Oct12Good
Nov10Good
Dec9Good
Location & terrain

Where is Zachary?

Zachary sits at 30.6°N, 91.2°W, 102 ft above sea level, in United States. The nearest listed city is Central, 9.9 mi away.

Topography around Zachary

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

Within 2 miles, the terrain around Zachary has only modest variations in elevation — a maximum elevation change of 95 ft around an average of 108 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 259 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 535 ft.

The land around Zachary is covered by trees (65%) and grassland (23%) within 2 miles, trees (66%) and grassland (25%) within 10 miles, and trees (75%) within 50 miles.

2 miles
95 ft
10 miles
259 ft
50 miles
535 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Central 9.9 mi · Baton Rouge 14 mi · Shenandoah 19 mi · Prairieville 26 mi · Hammond 42 mi · Opelousas 55 mi · Laplace 57 mi · Lafayette 59 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 Zachary (30.6485°, -91.1565°, elevation 102 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).