Ansonia weather in January

In January, Ansonia sees average daytime highs of 37°F and overnight lows near 27°F, with 4.3 in of precipitation across 10.1 wet days and about 9.4 hours of daylight. It is the 12th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 39°F in the first days to 36°F by the end. The sky is clear or mostly clear about 35% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of January to 9 h 48 min by month's end. Set against the rest of the year, January is Ansonia's 7th-clearest and 2nd-windiest month. For the whole year in context, see Ansonia's year-round climate.

Daytime high
37°
12th warmest
Overnight low
27°
1st coldest
Precipitation
4.3 in
10.1 wet days
Daylight
9 h 18 min
7:22 AM – 4:41 PM
Cloud cover
59%
7th clearest
Wind
12 mph
2nd windiest
Solar energy
2.06 kWh/m²
Travel score
0.0
out of 10

Ansonia is city in New Haven County, Connecticut, United States.

Density
1,177/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

Highs ease over the month, from about 39°F in the first days to 36°F by the end.

A typical January day in Ansonia reaches about 37°F in the afternoon and slips back to 27°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 26°F and 47°F. Set against its neighbours, January runs about 6°F cooler than December and on par with February.

10°20°30°40°50°151015202531
Avg high (°F)Avg low (°F)
13930
23930
33929
43829
53829
63829
73829
83828
93828
103728
113728
123728
133727
143727
153727
163627
173626
183626
193626
203626
213626
223626
233626
243626
253626
263626
273626
283626
293626
303626
313626

How January really feels in Ansonia

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
wind chill below the day's low

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

Ansonia weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 27°4.310.14.99.40.0
Feb37° / 27°3.89.14.310.30.0
Mar43° / 33°5.110.93.411.70.5
Apr53° / 42°4.611.50.513.12.8
May62° / 52°3.911.6014.35.1
Jun72° / 62°3.910.5014.96.5
Jul78° / 68°3.29.5014.76.9
Aug77° / 68°4.09.6013.77.0
Sep72° / 62°4.38.9012.36.9
Oct62° / 52°5.110.10.110.95.3
Nov51° / 42°4.39.50.69.72.6
Dec42° / 34°5.411.23.39.10.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
45050
54951
64951
74951
84951
95050
104951
114951
124951
134951
144852
154852
164852
174852
184852
194852
204852
214852
224852
234852
244852
254852
264852
274951
284951
294951
304951
314951

Chance of precipitation in January

Any precipitationSnow

Ansonia gets around 4.3 in of rain and snow over 10.1 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 33% and peaks near 36% on the wettest days, and about 5 days bring snow. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13513
23514
33514
43515
53515
63615
73616
83616
93616
103516
113516
123516
133416
143416
153416
163316
173316
183316
193216
203216
213116
223116
233015
243015
252915
262915
272915
282915
292915
302915
312915

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 12 mph in January.

Across January, daily wind ranges from about 11 mph on the calmest days to 12 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2611light breeze
2711light breeze
2811light breeze
2911light breeze
3011light breeze
3111light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 06 min at the start of January to 9 h 48 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 7:24 AM to 7:13 AM, and sunset from 4:27 PM to 4:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.17:244:27
29.17:244:28
39.17:244:29
49.17:244:30
59.17:244:31
69.17:244:31
79.17:244:32
89.27:244:33
99.27:244:34
109.27:244:35
119.27:234:36
129.27:234:37
139.37:234:38
149.37:234:39
159.37:224:40
169.37:224:41
179.37:214:42
189.47:214:44
199.47:214:45
209.47:204:46
219.57:204:47
229.57:194:48
239.57:184:49
249.57:184:50
259.67:174:52
269.67:164:53
279.67:164:54
289.77:154:55
299.77:144:56
309.77:134:58
319.87:134:59

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.06 kWh/m².

For context, solar energy here swings from a low near 1.71 kWh/m² to a high of 6.18 kWh/m² in June across the year — January's 2.06 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.8Dim
31.8Dim
41.8Dim
51.8Dim
61.8Dim
71.8Dim
81.9Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
142.0Dim
152.0Moderate
162.0Moderate
172.1Moderate
182.1Moderate
192.1Moderate
202.1Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.5Moderate
312.5Moderate
Planning a trip in January

Hazard calendar for Ansonia

In seasonPeak

None of Ansonia's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Ansonia sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Ansonia?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Ansonia.

What to pack for Ansonia in January

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

In January, Ansonia sees daytime highs around 37°F and nights near 27°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 Ansonia in January

The nearest coast averages about 39°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 mi away) is warmest in August at about 74°F and coldest in February near 35°F.

It's comfortable for a long swim from Jul 1 to Sep 30 — about 3 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb35Bracing
Mar37Bracing
Apr44Bracing
May54Bracing
Jun65Cool
Jul72Refreshing
Aug74Refreshing
Sep71Refreshing
Oct64Cool
Nov55Bracing
Dec46Bracing

UV index in Ansonia 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 Ansonia peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 11UV 8Dec 23UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Ansonia 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 Ansonia is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1120 µg/m³Nov 188 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar14Moderate
Apr16Moderate
May19Moderate
Jun20Moderate
Jul20Moderate
Aug17Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Ansonia?

Ansonia sits at 41.3°N, 73.1°W, 85 ft above sea level, in United States. The nearest listed city is Shelton, 2.5 mi away.

Topography around Ansonia

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

Within 2 miles, the terrain around Ansonia has only modest variations in elevation — a maximum elevation change of 646 ft around an average of 269 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 915 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,156 ft.

The land around Ansonia is covered by trees (74%) within 2 miles, trees (79%) within 10 miles, and trees (66%) and water (24%) within 50 miles.

2 miles
646 ft
10 miles
915 ft
50 miles
2,156 ft
treesgrasslandcroplandartificial surfaceswaterwetland
January weather nearby: Shelton 2.5 mi · Seymour 3.7 mi · New Haven 8.1 mi · City of Milford (balance) 8.7 mi · West Haven 8.7 mi · Milford 8.7 mi · Trumbull 9.3 mi · Naugatuck 9.9 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 Ansonia (41.3462°, -73.079°, elevation 85 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).