Oswego weather in January

In January, Oswego sees average daytime highs of 32°F and overnight lows near 22°F, with 4.1 in of precipitation across 17.7 wet days and about 9.1 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 35°F in the first days to 31°F by the end. The sky is clear or mostly clear about 4% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 48 min at the start of January to 9 h 36 min by month's end. Set against the rest of the year, January is Oswego's 12th-clearest and 2nd-windiest month. For the whole year in context, see Oswego's year-round climate.

Daytime high: 32°; 11th warmest
Overnight low: 22°; 2nd coldest
Precipitation: 4.1 in; 17.7 wet days
Daylight: 9 h 06 min; 7:42 AM – 4:49 PM
Cloud cover: 87%; 12th clearest
Wind: 12 mph; 2nd windiest
Solar energy: 1.58 kWh/m²
Travel score: 0.0; out of 10

Oswego is city in and county seat of Oswego County, New York, United States.

Density: 612/km²; people per km²
Founded: 1796

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← December Oswego year-round climate February →Best places to visit in January

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 35°F in the first days to 31°F by the end.

A typical January day in Oswego reaches about 32°F in the afternoon and slips back to 22°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 20°F and 44°F. Set against its neighbours, January runs about 6°F cooler than December and on par with February.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°F)	35	35	35	34	34	34	34	34	33	33	33	33	33	32	32	32	32	31	31	31	31	31	31	31	31	31	31	31	31	31	31
Avg low (°F)	26	26	26	26	25	25	25	24	24	24	24	23	23	23	22	22	22	22	21	21	21	21	21	21	20	20	20	20	20	20	20

	Avg high (°F)	Avg low (°F)
1	35	26
2	35	26
3	35	26
4	34	26
5	34	25
6	34	25
7	34	25
8	34	24
9	33	24
10	33	24
11	33	24
12	33	23
13	33	23
14	32	23
15	32	22
16	32	22
17	32	22
18	31	22
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	31	21
25	31	20
26	31	20
27	31	20
28	31	20
29	31	20
30	31	20
31	31	20

How January really feels in Oswego

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

heat index over the day's high

Days feeling ≤ 32°F

27 feel bitter (≤ 14°F)

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

Oswego weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	32° / 22°	4.1	17.7	15.6	9.1	0.0
Feb	32° / 21°	3.1	12.4	10	10.2	0.0
Mar	38° / 27°	3.5	12.4	6.5	11.6	0.0
Apr	48° / 38°	4.4	12.8	2.1	13.2	1.6
May	58° / 47°	3.6	11.4	0	14.5	4.2
Jun	68° / 58°	4.2	12	0	15.2	6.1
Jul	75° / 66°	4.4	12.1	0	14.9	6.8
Aug	75° / 66°	4.3	12.7	0	13.8	6.8
Sep	69° / 59°	4.4	11.5	0	12.3	6.2
Oct	58° / 49°	5.4	15.4	0	10.8	3.8
Nov	47° / 38°	4.6	16.2	3.9	9.5	1.3
Dec	38° / 30°	4.8	18.9	11.8	8.8	0.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of January, with mostly cloudy or overcast conditions the remaining 90%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	8	8	8	9	8	8	8	8	8	8	8	9	9	9	9	9	9	9	9	9	10	11	11	11	12	12	12	13	14	15	16
Cloudier (%)	92	92	92	91	92	92	92	92	92	92	92	91	91	91	91	91	91	91	91	91	90	89	89	89	88	88	88	87	86	85	84

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	8	92
6	8	92
7	8	92
8	8	92
9	8	92
10	8	92
11	8	92
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	10	90
22	11	89
23	11	89
24	11	89
25	12	88
26	12	88
27	12	88
28	13	87
29	14	86
30	15	85
31	16	84

Chance of precipitation in January

Any precipitationSnow

Oswego gets around 4.1 in of rain and snow over 17.7 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 56% and peaks near 66% on the wettest days, and about 16 days bring snow. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	66	65	65	65	65	64	63	63	62	61	60	59	58	57	56	56	55	54	54	53	53	52	52	51	50	50	49	49	48	47	47
Snow chance (%)	48	48	48	49	49	49	49	49	49	49	49	49	50	50	50	50	50	50	50	51	51	51	51	50	50	49	48	47	46	45	44

	Rain chance (%)	Snow chance (%)
1	66	48
2	65	48
3	65	48
4	65	49
5	65	49
6	64	49
7	63	49
8	63	49
9	62	49
10	61	49
11	60	49
12	59	49
13	58	50
14	57	50
15	56	50
16	56	50
17	55	50
18	54	50
19	54	50
20	53	51
21	53	51
22	52	51
23	52	51
24	51	50
25	50	50
26	50	49
27	49	48
28	49	47
29	48	46
30	47	45
31	47	44

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (mph)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (mph)	Feels
1	12	light breeze
2	12	light breeze
3	12	light breeze
4	12	light breeze
5	12	light breeze
6	12	light breeze
7	12	light breeze
8	12	light breeze
9	12	light breeze
10	12	light breeze
11	12	light breeze
12	12	light breeze
13	12	light breeze
14	12	light breeze
15	12	light breeze
16	12	light breeze
17	12	light breeze
18	12	light breeze
19	12	light breeze
20	12	light breeze
21	12	light breeze
22	12	light breeze
23	12	light breeze
24	12	light breeze
25	11	light breeze
26	11	light breeze
27	11	light breeze
28	11	light breeze
29	11	light breeze
30	11	light breeze
31	11	light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 48 min at the start of January to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over January. Sunrise moves from 7:45 AM to 7:32 AM, and sunset from 4:34 PM to 5:07 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	8.8	8.8	8.8	8.9	8.9	8.9	8.9	8.9	8.9	9.0	9.0	9.0	9.0	9.1	9.1	9.1	9.1	9.2	9.2	9.2	9.3	9.3	9.3	9.3	9.4	9.4	9.4	9.5	9.5	9.6	9.6
Sunrise (AM)	7:45	7:45	7:45	7:45	7:45	7:45	7:45	7:44	7:44	7:44	7:44	7:44	7:43	7:43	7:42	7:42	7:42	7:41	7:41	7:40	7:39	7:39	7:38	7:37	7:37	7:36	7:35	7:34	7:33	7:32	7:32
Sunset (PM)	4:34	4:35	4:36	4:36	4:37	4:38	4:39	4:40	4:41	4:42	4:43	4:44	4:45	4:46	4:47	4:49	4:50	4:51	4:52	4:53	4:55	4:56	4:57	4:58	4:59	5:01	5:02	5:03	5:05	5:06	5:07

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	8.8	7:45	4:34
2	8.8	7:45	4:35
3	8.8	7:45	4:36
4	8.9	7:45	4:36
5	8.9	7:45	4:37
6	8.9	7:45	4:38
7	8.9	7:45	4:39
8	8.9	7:44	4:40
9	8.9	7:44	4:41
10	9.0	7:44	4:42
11	9.0	7:44	4:43
12	9.0	7:44	4:44
13	9.0	7:43	4:45
14	9.1	7:43	4:46
15	9.1	7:42	4:47
16	9.1	7:42	4:49
17	9.1	7:42	4:50
18	9.2	7:41	4:51
19	9.2	7:41	4:52
20	9.2	7:40	4:53
21	9.3	7:39	4:55
22	9.3	7:39	4:56
23	9.3	7:38	4:57
24	9.3	7:37	4:58
25	9.4	7:37	4:59
26	9.4	7:36	5:01
27	9.4	7:35	5:02
28	9.5	7:34	5:03
29	9.5	7:33	5:05
30	9.6	7:32	5:06
31	9.6	7:32	5:07

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.58 kWh/m².

For context, solar energy here swings from a low near 1.22 kWh/m² to a high of 6.36 kWh/m² in June across the year — January's 1.58 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.4	1.4	1.4	1.4	1.4	1.5	1.5	1.5	1.6	1.6	1.6	1.6	1.7	1.7	1.8	1.8	1.8	1.9	1.9	1.9	2.0	2.0	2.0	2.1
Level	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	1.3	Dim
2	1.3	Dim
3	1.3	Dim
4	1.3	Dim
5	1.3	Dim
6	1.3	Dim
7	1.3	Dim
8	1.4	Dim
9	1.4	Dim
10	1.4	Dim
11	1.4	Dim
12	1.4	Dim
13	1.5	Dim
14	1.5	Dim
15	1.5	Dim
16	1.6	Dim
17	1.6	Dim
18	1.6	Dim
19	1.6	Dim
20	1.7	Dim
21	1.7	Dim
22	1.8	Dim
23	1.8	Dim
24	1.8	Dim
25	1.9	Dim
26	1.9	Dim
27	1.9	Dim
28	2.0	Dim
29	2.0	Dim
30	2.0	Moderate
31	2.1	Moderate

Planning a trip in January

Is January a good time to visit Oswego?

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

0.0

Sightseeing

9th-best month of the year

0.0

Beach & pool

7th-best month of the year

January is a weaker month for outdoor sightseeing in Oswego.

What to pack for Oswego in January

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

In January, Oswego sees daytime highs around 32°F and nights near 22°F. Pack a warm layer, a heavy coat and rain gear. About 18 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Oswego in January

The nearest coast averages about 40°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 8 mi away) is warmest in August at about 72°F and coldest in March near 37°F.

It's comfortable for a long swim from Jul 15 to Sep 13 — about 2 months when the water holds above 68°F.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	40	37	37	38	43	57	69	72	68	58	50	44
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Refreshing	Refreshing	Cool	Bracing	Bracing	Bracing

	Sea temperature (°F)	Comfort
Jan	40	Bracing
Feb	37	Bracing
Mar	37	Bracing
Apr	38	Bracing
May	43	Bracing
Jun	57	Bracing
Jul	69	Refreshing
Aug	72	Refreshing
Sep	68	Cool
Oct	58	Bracing
Nov	50	Bracing
Dec	44	Bracing

UV index in Oswego in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Oswego peaks around July 12 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	4	5	7	8	8	6	6	3	2	1
Level	Low	Moderate	Moderate	High	Very high	Very high	Very high	High	High	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Moderate
Mar	4	Moderate
Apr	5	High
May	7	Very high
Jun	8	Very high
Jul	8	Very high
Aug	6	High
Sep	6	High
Oct	3	Moderate
Nov	2	Low
Dec	1	Low

Location & terrain

Where is Oswego?

Oswego sits at 43.5°N, 76.5°W, 285 ft above sea level, in United States. The nearest listed city is Clay, 25 mi away.

Topography around Oswego

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

Within 2 miles, the terrain around Oswego has only modest variations in elevation — a maximum elevation change of 240 ft around an average of 305 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 354 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,801 ft.

The land around Oswego is covered by trees (39%) and water (30%) within 2 miles, water (47%) and trees (42%) within 10 miles, and trees (41%) and water (39%) within 50 miles.

2 miles

240 ft

trees 39%

10 miles

354 ft

water 47%

50 miles

1,801 ft

trees 41%

treesgrasslandcroplandartificial surfaceswaterwetland

← December Oswego year-round climate February →Best places to visit in January

January weather nearby: Clay 25 mi · Cicero 27 mi · Syracuse 34 mi · Auburn 36 mi · Watertown 47 mi · Prince Edward 53 mi · Kingston 53 mi · Rome 55 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

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 Oswego (43.4554°, -76.5105°, elevation 285 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	35	26
2	35	26
3	35	26
4	34	26
5	34	25
6	34	25
7	34	25
8	34	24
9	33	24
10	33	24
11	33	24
12	33	23
13	33	23
14	32	23
15	32	22
16	32	22
17	32	22
18	31	22
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	31	21
25	31	20
26	31	20
27	31	20
28	31	20
29	31	20
30	31	20
31	31	20

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	8	92
6	8	92
7	8	92
8	8	92
9	8	92
10	8	92
11	8	92
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	10	90
22	11	89
23	11	89
24	11	89
25	12	88
26	12	88
27	12	88
28	13	87
29	14	86
30	15	85
31	16	84

	Rain chance (%)	Snow chance (%)
1	66	48
2	65	48
3	65	48
4	65	49
5	65	49
6	64	49
7	63	49
8	63	49
9	62	49
10	61	49
11	60	49
12	59	49
13	58	50
14	57	50
15	56	50
16	56	50
17	55	50
18	54	50
19	54	50
20	53	51
21	53	51
22	52	51
23	52	51
24	51	50
25	50	50
26	50	49
27	49	48
28	49	47
29	48	46
30	47	45
31	47	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	35	26
2	35	26
3	35	26
4	34	26
5	34	25
6	34	25
7	34	25
8	34	24
9	33	24
10	33	24
11	33	24
12	33	23
13	33	23
14	32	23
15	32	22
16	32	22
17	32	22
18	31	22
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	31	21
25	31	20
26	31	20
27	31	20
28	31	20
29	31	20
30	31	20
31	31	20

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	8	92
6	8	92
7	8	92
8	8	92
9	8	92
10	8	92
11	8	92
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	10	90
22	11	89
23	11	89
24	11	89
25	12	88
26	12	88
27	12	88
28	13	87
29	14	86
30	15	85
31	16	84

	Rain chance (%)	Snow chance (%)
1	66	48
2	65	48
3	65	48
4	65	49
5	65	49
6	64	49
7	63	49
8	63	49
9	62	49
10	61	49
11	60	49
12	59	49
13	58	50
14	57	50
15	56	50
16	56	50
17	55	50
18	54	50
19	54	50
20	53	51
21	53	51
22	52	51
23	52	51
24	51	50
25	50	50
26	50	49
27	49	48
28	49	47
29	48	46
30	47	45
31	47	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	35	26
2	35	26
3	35	26
4	34	26
5	34	25
6	34	25
7	34	25
8	34	24
9	33	24
10	33	24
11	33	24
12	33	23
13	33	23
14	32	23
15	32	22
16	32	22
17	32	22
18	31	22
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	31	21
25	31	20
26	31	20
27	31	20
28	31	20
29	31	20
30	31	20
31	31	20

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	8	92
6	8	92
7	8	92
8	8	92
9	8	92
10	8	92
11	8	92
12	9	91
13	9	91
14	9	91
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	10	90
22	11	89
23	11	89
24	11	89
25	12	88
26	12	88
27	12	88
28	13	87
29	14	86
30	15	85
31	16	84

	Rain chance (%)	Snow chance (%)
1	66	48
2	65	48
3	65	48
4	65	49
5	65	49
6	64	49
7	63	49
8	63	49
9	62	49
10	61	49
11	60	49
12	59	49
13	58	50
14	57	50
15	56	50
16	56	50
17	55	50
18	54	50
19	54	50
20	53	51
21	53	51
22	52	51
23	52	51
24	51	50
25	50	50
26	50	49
27	49	48
28	49	47
29	48	46
30	47	45
31	47	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100