Gallatin weather in May

In May, Gallatin sees average daytime highs of 77°F and overnight lows near 60°F, with 4.9 in of rain across 12.5 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 74°F in the first days to 81°F by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Gallatin's 8th-clearest and 7th-windiest month. For the whole year in context, see Gallatin's year-round climate.

Daytime high
77°
5th warmest
Overnight low
60°
8th coldest
Rainfall
4.9 in
12.5 wet days
Daylight
13 h 54 min
4:44 AM – 6:40 PM
Cloud cover
61%
8th clearest
Wind
6 mph
7th windiest
Solar energy
5.89 kWh/m²
Travel score
6.3
out of 10

Gallatin is city in and the county seat of Sumner County, Tennessee, United States.

Density
418/km²
people per km²
Founded
1802

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 74°F in the first days to 81°F by the end.

A typical May day in Gallatin reaches about 77°F in the afternoon and slips back to 60°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 67°F and 87°F. Set against its neighbours, May runs about 8°F warmer than April and about 8°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17355
27355
37455
47456
57456
67556
77557
87557
97657
107658
117658
127658
137759
147759
157759
167760
177860
187860
197861
207861
217961
227962
237962
248062
258063
268063
278163
288164
298164
308164
318264

How May really feels in Gallatin

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.

Gallatin 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
Jan46° / 31°4.210.61.89.81.2
Feb50° / 34°4.610.61.710.62.2
Mar60° / 41°5.011.40.711.74.5
Apr69° / 50°5.111.20.112.96.2
May77° / 60°4.912.5013.96.3
Jun85° / 68°3.912.2014.45.0
Jul88° / 71°3.912.5014.24.2
Aug87° / 70°3.210.4013.44.6
Sep82° / 62°3.37.9012.26.5
Oct71° / 51°3.77.80.111.17.1
Nov58° / 40°4.090.310.14.5
Dec49° / 34°5.010.919.62.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24456
34456
44357
54456
64456
74456
84456
94357
104357
114555
124555
134456
144456
154456
164456
174456
184357
194357
204357
214357
224456
234357
244357
254456
264456
274456
284456
294555
304555
314654

Chance of precipitation in May

Any precipitation

Gallatin gets around 4.9 in of rain over 12.5 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 40% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
244
344
443
543
642
742
841
940
1040
1139
1239
1338
1438
1538
1638
1738
1838
1938
2038
2139
2239
2340
2440
2540
2641
2741
2842
2942
3042
3143

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 22% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
159201740
256211850
355211950
453212060
550222170
648222280
747222390
8452223100
9432224110
10422125120
11412125130
12392025150
13382026160
14372026170
15361926180
16361925201
17351825211
18341825231
19331824241
20321724261
21311723272
22301723282
23291723292
24271722303
25261722313
26251822324
27231822334
28221822354
29211722364
30201722375
31191722385

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
76calm
86calm
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 30 min at the start of May to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 4:59 AM to 4:35 AM, and sunset from 6:27 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.54:596:27
213.54:586:28
313.54:576:29
413.64:566:30
513.64:556:30
613.64:546:31
713.74:526:32
813.74:516:33
913.74:506:34
1013.84:506:35
1113.84:496:36
1213.84:486:37
1313.84:476:37
1413.94:466:38
1513.94:456:39
1613.94:446:40
1714.04:436:41
1814.04:436:42
1914.04:426:42
2014.04:416:43
2114.14:406:44
2214.14:406:45
2314.14:396:46
2414.14:386:46
2514.24:386:47
2614.24:376:48
2714.24:376:49
2814.24:366:49
2914.24:366:50
3014.34:356:51
3114.34:356:51

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.89 kWh/m².

For context, solar energy here swings from a low near 1.96 kWh/m² to a high of 6.22 kWh/m² in June across the year — May's 5.89 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
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in May

Is May a good time to visit Gallatin?

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

6.3
Sightseeing
3rd-best month of the year
5.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Gallatin for sightseeing.

What to pack for Gallatin in May

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

In May, Gallatin sees daytime highs around 77°F and nights near 60°F. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Gallatin 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 Gallatin peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highHighModerateJul 11UV 9Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Gallatin 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 Gallatin is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (November, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1518 µg/m³Nov 216 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar10Good
Apr10Good
May14Moderate
Jun16Moderate
Jul19Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov6Good
Dec7Good
Location & terrain

Where is Gallatin?

Gallatin sits at 36.4°N, 86.4°W, 538 ft above sea level, in United States. The nearest listed city is Hendersonville, 11 mi away.

Topography around Gallatin

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

Within 2 miles, the terrain around Gallatin has only modest variations in elevation — a maximum elevation change of 256 ft around an average of 548 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 771 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,919 ft.

The land around Gallatin is covered by trees (37%), grassland (34%) and artificial surfaces (21%) within 2 miles, trees (50%) and grassland (36%) within 10 miles, and trees (56%) and grassland (27%) within 50 miles.

2 miles
256 ft
10 miles
771 ft
50 miles
1,919 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Hendersonville 11 mi · Mount Juliet 14 mi · Lebanon 15 mi · Goodlettsville 16 mi · Hermitage 17 mi · Nashville 24 mi · Springfield 25 mi · La Vergne 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 Gallatin (36.3884°, -86.4467°, elevation 538 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).