Zachary weather in January

In January, Zachary sees average daytime highs of 60°F and overnight lows near 42°F, with 5.1 in of precipitation across 9.6 wet days and about 10.2 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 60°F through the month. The sky is clear or mostly clear about 36% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 hours at the start of January to 10 h 30 min by month's end. Set against the rest of the year, January is Zachary's 7th-clearest and 4th-windiest month. For the whole year in context, see Zachary's year-round climate.

Daytime high
60°
12th warmest
Overnight low
42°
1st coldest
Precipitation
5.1 in
9.6 wet days
Daylight
10 h 12 min
7:07 AM – 5:20 PM
Cloud cover
57%
7th clearest
Wind
7 mph
4th windiest
Solar energy
2.82 kWh/m²
Travel score
5.0
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 January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 60°F through the month.

A typical January day in Zachary reaches about 60°F in the afternoon and slips back to 42°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 47°F and 73°F. Set against its neighbours, January runs about 2°F cooler than December and about 4°F cooler than February.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16043
26043
36042
46042
56042
66042
76042
86042
96042
106042
116042
126042
136042
146042
156042
166042
176042
186042
196042
206042
216042
226042
236142
246142
256142
266142
276142
286142
296142
306142
316142

How January really feels in Zachary

Once humidity and wind are folded in, January 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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Zachary weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 1st-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24258
34258
44357
54357
64456
74456
84555
94654
104654
114753
124753
134753
144852
154852
164852
174852
184852
194852
204852
214852
224852
234654
244654
254654
264654
274555
284456
294357
304357
314357

Chance of precipitation in January

Any precipitation

Zachary gets around 5.1 in of rain and snow over 9.6 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 32% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
132
231
331
431
531
631
731
830
930
1030
1130
1230
1330
1431
1531
1631
1731
1831
1931
2031
2132
2232
2332
2432
2532
2632
2732
2832
2932
3032
3132

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
17691041
27891030
37791130
47791130
57791130
67791130
77881130
87981120
97981120
108081020
118081020
127991020
13809920
14809920
15819820
16819820
17819820
18829720
19829720
20829630
21829630
22829630
23829630
24829630
25829630
26829630
27829630
28829630
29828730
30828730
31818740

Wind in January

Winds average 7 mph in January.

Across January, daily wind ranges from about 7 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
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 hours at the start of January to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:06 AM to 7:03 AM, and sunset from 5:09 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.07:065:09
210.17:075:10
310.17:075:11
410.17:075:11
510.17:075:12
610.17:075:13
710.17:075:13
810.17:085:14
910.17:085:15
1010.17:085:16
1110.17:085:16
1210.27:085:17
1310.27:085:18
1410.27:085:19
1510.27:075:20
1610.27:075:20
1710.27:075:21
1810.37:075:22
1910.37:075:23
2010.37:075:24
2110.37:065:25
2210.37:065:26
2310.37:065:26
2410.47:065:27
2510.47:055:28
2610.47:055:29
2710.47:045:30
2810.47:045:31
2910.57:045:32
3010.57:035:32
3110.57:035:33

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.82 kWh/m².

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 — January's 2.82 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.7Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.8Moderate
132.8Moderate
142.8Moderate
152.8Moderate
162.8Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.1Moderate
303.1Moderate
313.1Moderate
Planning a trip in January

Is January a good time to visit Zachary?

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

5.0
Sightseeing
8th-best month of the year
0.5
Beach & pool
12th-best month of the year

January is a reasonable time to visit Zachary for sightseeing.

What to pack for Zachary in January

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

In January, Zachary sees daytime highs around 60°F and nights near 42°F. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Zachary in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 4 — enough to warrant sun protection. 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 January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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
January 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).