Monroe weather in January

In January, Monroe sees average daytime highs of 32°F and overnight lows near 20°F, with 2.5 in of precipitation across 9.9 wet days and about 9.3 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°F through the month. The sky is clear or mostly clear about 13% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of January to 9 h 42 min by month's end. Set against the rest of the year, January is Monroe's 12th-clearest and 1st-windiest month. For the whole year in context, see Monroe's year-round climate.

Daytime high
32°
12th warmest
Overnight low
20°
1st coldest
Precipitation
2.5 in
9.9 wet days
Daylight
9 h 18 min
8:05 AM – 5:21 PM
Cloud cover
77%
12th clearest
Wind
10 mph
1st windiest
Solar energy
1.87 kWh/m²
Travel score
0.0
out of 10

Monroe is city in and county seat of Monroe County, Michigan, United States.

Density
762/km²
people per km²
Founded
1817

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 32°F through the month.

A typical January day in Monroe reaches about 32°F in the afternoon and slips back to 20°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 18°F and 47°F. Set against its neighbours, January runs about 5°F cooler than December and about 3°F cooler than February.

20°40°151015202531
Avg high (°F)Avg low (°F)
13423
23422
33422
43322
53322
63322
73321
83321
93321
103221
113220
123220
133220
143220
153220
163119
173119
183119
193119
203119
213119
223119
233119
243119
253119
263119
273119
283219
293219
303219
313219

How January really feels in Monroe

Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 31 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
31
31 feel bitter (≤ 14°F)

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Monroe weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 20°2.59.95.99.30.0
Feb35° / 21°2.18.45.310.30.0
Mar44° / 29°2.79.73.611.70.9
Apr57° / 40°3.611.9113.13.8
May69° / 51°3.612.2014.36.0
Jun79° / 61°3.510.60156.5
Jul83° / 65°3.410.4014.76.0
Aug80° / 64°3.39.8013.76.6
Sep74° / 56°2.58.5012.37.0
Oct61° / 45°2.69.20.110.95.1
Nov48° / 35°2.78.51.39.61.8
Dec37° / 26°2.49.1490.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12278
22278
32278
42278
52278
62179
72278
82278
92278
102179
112179
122179
132278
142278
152278
162179
172179
182179
192179
202278
212278
222278
232278
242476
252476
262476
272476
282476
292476
302674
312674

Chance of precipitation in January

Any precipitationSnow

Monroe gets around 2.5 in of rain and snow over 9.9 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 35% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13115
23215
33316
43316
53417
63517
73518
83518
93519
103519
113519
123419
133419
143419
153319
163219
173219
183119
193019
203019
212919
222919
232919
242920
252820
262820
272820
282920
292920
302820
312820

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 10 mph in January, the windiest month of the year.

Across January, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
309light breeze
319light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 hours at the start of January to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 8:07 AM to 7:55 AM, and sunset from 5:07 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.08:075:07
29.08:075:07
39.08:075:08
49.08:075:09
59.08:075:10
69.18:075:11
79.18:075:12
89.18:075:13
99.18:075:14
109.18:075:15
119.28:065:16
129.28:065:17
139.28:065:18
149.28:065:19
159.28:055:20
169.38:055:21
179.38:045:22
189.38:045:23
199.38:045:24
209.48:035:25
219.48:025:27
229.48:025:28
239.58:015:29
249.58:015:30
259.58:005:31
269.67:595:33
279.67:585:34
289.67:585:35
299.77:575:36
309.77:565:37
319.77:555:39

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.87 kWh/m².

For context, solar energy here swings from a low near 1.51 kWh/m² to a high of 6.41 kWh/m² in June across the year — January's 1.87 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.6Dim
41.6Dim
51.6Dim
61.6Dim
71.6Dim
81.7Dim
91.7Dim
101.7Dim
111.7Dim
121.8Dim
131.8Dim
141.8Dim
151.8Dim
161.9Dim
171.9Dim
181.9Dim
191.9Dim
202.0Dim
212.0Moderate
222.0Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.2Moderate
272.2Moderate
282.2Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in January

Is January a good time to visit Monroe?

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

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Monroe.

What to pack for Monroe in January

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

In January, Monroe sees daytime highs around 32°F and nights near 20°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Monroe in January

The nearest coast averages about 34°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 75°F and coldest in February near 33°F.

It's comfortable for a long swim from Jun 20 to Sep 20 — about 3.1 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan34Bracing
Feb33Bracing
Mar36Bracing
Apr44Bracing
May56Bracing
Jun67Cool
Jul75Refreshing
Aug75Warm
Sep70Refreshing
Oct58Bracing
Nov46Bracing
Dec38Bracing

UV index in Monroe in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Monroe peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 19UV 9Dec 19UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May7Very high
Jun9Very high
Jul8Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Monroe 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 Monroe is worst in July — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1216 µg/m³Oct 239 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar14Moderate
Apr14Moderate
May15Moderate
Jun16Moderate
Jul16Moderate
Aug15Moderate
Sep12Moderate
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Monroe?

Monroe sits at 41.9°N, 83.4°W, 597 ft above sea level, in United States. The nearest listed city is Trenton, 19 mi away.

Topography around Monroe

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

Within 2 miles, the terrain around Monroe has only modest variations in elevation — a maximum elevation change of 131 ft around an average of 597 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 230 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 863 ft.

The land around Monroe is covered by trees (38%) and artificial surfaces (31%) within 2 miles, cropland (35%) and water (31%) within 10 miles, and cropland (37%), trees (23%) and water (22%) within 50 miles.

2 miles
131 ft
10 miles
230 ft
50 miles
863 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Trenton 19 mi · Toledo 19 mi · Oregon 19 mi · Romulus 21 mi · Sylvania 21 mi · Southgate 23 mi · Taylor 24 mi · Wyandotte 24 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 Monroe (41.9164°, -83.3977°, elevation 597 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).