Isumi weather in January

In January, Isumi sees average daytime highs of 10°C and overnight lows near 7°C, with 108 mm of precipitation across 10.7 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 50% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of January to 10 h 12 min by month's end. Set against the rest of the year, January is Isumi's 1st-clearest and 3rd-windiest month. For the whole year in context, see Isumi's year-round climate.

Daytime high: 10°; 12th warmest
Overnight low: 7°; 2nd coldest
Precipitation: 108 mm; 10.7 wet days
Daylight: 9 h 54 min; 6:52 AM – 4:44 PM
Cloud cover: 45%; 1st clearest
Wind: 20 km/h; 3rd windiest
Solar energy: 2.68 kWh/m²
Travel score: 2.5; out of 10

Isumi is city in Chiba Prefecture, Japan.

Density: 226/km²; people per km²
Founded: 2005

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

← December Isumi 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

Day-to-day highs hold fairly steady near 10°C through the month.

A typical January day in Isumi reaches about 10°C in the afternoon and slips back to 7°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 13°C. Set against its neighbours, January runs about 3°C 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 (°C)	11	11	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
Avg low (°C)	8	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6

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

Isumi weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	10° / 7°	108	10.7	9.9	2.5
Feb	11° / 6°	101	10.6	10.7	2.4
Mar	13° / 9°	159	14.6	11.7	3.2
Apr	16° / 13°	126	12.6	12.9	4.8
May	20° / 17°	138	11.8	13.8	5.9
Jun	23° / 20°	190	13.5	14.3	5.8
Jul	26° / 24°	133	11.8	14.1	6.2
Aug	28° / 25°	100	11	13.3	6.2
Sep	25° / 23°	188	14.7	12.2	5.9
Oct	21° / 19°	239	14.9	11.1	5.8
Nov	17° / 14°	147	13.4	10.1	5.2
Dec	13° / 9°	106	11.7	9.7	3.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

	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 (%)	71	71	71	71	71	70	70	69	68	67	66	65	64	63	62	62	61	60	60	60	60	60	60	60	59	60	60	60	61	61	61
Cloudier (%)	29	29	29	29	29	30	30	31	32	33	34	35	36	37	38	38	39	40	40	40	40	40	40	40	41	40	40	40	39	39	39

	Clearer (%)	Cloudier (%)
1	71	29
2	71	29
3	71	29
4	71	29
5	71	29
6	70	30
7	70	30
8	69	31
9	68	32
10	67	33
11	66	34
12	65	35
13	64	36
14	63	37
15	62	38
16	62	38
17	61	39
18	60	40
19	60	40
20	60	40
21	60	40
22	60	40
23	60	40
24	60	40
25	59	41
26	60	40
27	60	40
28	60	40
29	61	39
30	61	39
31	61	39

Chance of precipitation in January

Any precipitation

Isumi gets around 108 mm of rain and snow over 10.7 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 35% and peaks near 38% on the wettest days, and about 0 day brings snow.

	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 (%)	32	32	32	32	33	33	33	33	34	34	35	35	36	36	37	37	37	38	38	38	38	37	37	37	36	36	35	34	34	33	33

	Rain chance (%)
1	32
2	32
3	32
4	32
5	33
6	33
7	33
8	33
9	34
10	34
11	35
12	35
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	37
24	37
25	36
26	36
27	35
28	34
29	34
30	33
31	33

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 20 km/h in January.

Across January, daily wind ranges from about 20 km/h on the calmest days to 20 km/h 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 (km/h)	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20
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 (km/h)	Feels
1	20	light breeze
2	20	light breeze
3	20	light breeze
4	20	light breeze
5	20	light breeze
6	20	light breeze
7	20	light breeze
8	20	light breeze
9	20	light breeze
10	20	light breeze
11	20	light breeze
12	20	light breeze
13	20	light breeze
14	20	light breeze
15	20	light breeze
16	20	light breeze
17	20	light breeze
18	20	light breeze
19	20	light breeze
20	20	light breeze
21	20	light breeze
22	20	light breeze
23	20	light breeze
24	20	light breeze
25	20	light breeze
26	20	light breeze
27	20	light breeze
28	20	light breeze
29	20	light breeze
30	20	light breeze
31	20	light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 42 min at the start of January to 10 h 12 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 6:52 AM to 6:45 AM, and sunset from 4:31 PM to 4:58 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)	9.7	9.7	9.7	9.7	9.7	9.7	9.7	9.7	9.8	9.8	9.8	9.8	9.8	9.8	9.9	9.9	9.9	9.9	9.9	9.9	10.0	10.0	10.0	10.0	10.1	10.1	10.1	10.1	10.2	10.2	10.2
Sunrise (AM)	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:51	6:51	6:51	6:50	6:50	6:50	6:49	6:49	6:48	6:48	6:47	6:47	6:46	6:46	6:45
Sunset (PM)	4:31	4:32	4:33	4:34	4:34	4:35	4:36	4:37	4:38	4:38	4:39	4:40	4:41	4:42	4:43	4:44	4:45	4:46	4:47	4:47	4:48	4:49	4:50	4:51	4:52	4:53	4:54	4:55	4:56	4:57	4:58

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.7	6:52	4:31
2	9.7	6:52	4:32
3	9.7	6:52	4:33
4	9.7	6:52	4:34
5	9.7	6:52	4:34
6	9.7	6:52	4:35
7	9.7	6:52	4:36
8	9.7	6:52	4:37
9	9.8	6:52	4:38
10	9.8	6:52	4:38
11	9.8	6:52	4:39
12	9.8	6:52	4:40
13	9.8	6:52	4:41
14	9.8	6:52	4:42
15	9.9	6:52	4:43
16	9.9	6:52	4:44
17	9.9	6:51	4:45
18	9.9	6:51	4:46
19	9.9	6:51	4:47
20	9.9	6:50	4:47
21	10.0	6:50	4:48
22	10.0	6:50	4:49
23	10.0	6:49	4:50
24	10.0	6:49	4:51
25	10.1	6:48	4:52
26	10.1	6:48	4:53
27	10.1	6:47	4:54
28	10.1	6:47	4:55
29	10.2	6:46	4:56
30	10.2	6:46	4:57
31	10.2	6:45	4:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.68 kWh/m².

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 5.53 kWh/m² in August across the year — January's 2.68 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)	2.5	2.5	2.5	2.5	2.6	2.6	2.6	2.6	2.5	2.5	2.5	2.5	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.6	2.7	2.7	2.7	2.8	2.8	2.8	2.9	2.9	2.9	2.9	3.0
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.5	Moderate
2	2.5	Moderate
3	2.5	Moderate
4	2.5	Moderate
5	2.6	Moderate
6	2.6	Moderate
7	2.6	Moderate
8	2.6	Moderate
9	2.5	Moderate
10	2.5	Moderate
11	2.5	Moderate
12	2.5	Moderate
13	2.6	Moderate
14	2.6	Moderate
15	2.6	Moderate
16	2.6	Moderate
17	2.6	Moderate
18	2.6	Moderate
19	2.6	Moderate
20	2.6	Moderate
21	2.7	Moderate
22	2.7	Moderate
23	2.7	Moderate
24	2.8	Moderate
25	2.8	Moderate
26	2.8	Moderate
27	2.9	Moderate
28	2.9	Moderate
29	2.9	Moderate
30	2.9	Moderate
31	3.0	Moderate

Planning a trip in January

Hazard calendar for Isumi

In seasonPeak

In January, Isumi sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Isumi sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is January a good time to visit Isumi?

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

2.5

Sightseeing

11th-best month of the year

0.0

Beach & pool

11th-best month of the year

January is a weaker month for outdoor sightseeing in Isumi.

What to pack for Isumi in January

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

In January, Isumi sees daytime highs around 10°C and nights near 7°C. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Isumi in January

The nearest coast averages about 18°C 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 26°C and coldest in February near 16°C.

It's comfortable for a long swim from May 22 to Dec 9 — about 6.6 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	18	16	16	18	20	22	24	26	26	24	22	20
Comfort	Cool	Cool	Cool	Cool	Cool	Refreshing	Refreshing	Warm	Warm	Refreshing	Refreshing	Cool

	Sea temperature (°C)	Comfort
Jan	18	Cool
Feb	16	Cool
Mar	16	Cool
Apr	18	Cool
May	20	Cool
Jun	22	Refreshing
Jul	24	Refreshing
Aug	26	Warm
Sep	26	Warm
Oct	24	Refreshing
Nov	22	Refreshing
Dec	20	Cool

UV index in Isumi in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Isumi peaks around August 11 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	4	5	7	9	9	10	10	8	6	4	2
Level	Moderate	Moderate	Moderate	High	Very high	Very high	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	4	Moderate
Mar	5	Moderate
Apr	7	High
May	9	Very high
Jun	9	Very high
Jul	10	Extreme
Aug	10	Extreme
Sep	8	Very high
Oct	6	High
Nov	4	Moderate
Dec	2	Moderate

Air quality in Isumi 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 Isumi is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (September, 11 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	14	17	21	22	21	16	12	11	11	14	14	13
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	14	Moderate
Feb	17	Moderate
Mar	21	Moderate
Apr	22	Moderate
May	21	Moderate
Jun	16	Moderate
Jul	12	Good
Aug	11	Good
Sep	11	Good
Oct	14	Moderate
Nov	14	Moderate
Dec	13	Moderate

Location & terrain

Where is Isumi?

Isumi sits at 35.2°N, 140.4°E, 1 m above sea level, in Japan. The nearest listed city is Ōhara, 2.0 km away.

Topography around Isumi

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Isumi.

Within 3 km, the terrain around Isumi has only modest variations in elevation — a maximum elevation change of 86 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 229 m; within 80 km, significant variations in elevation — a maximum elevation change of 396 m.

The land around Isumi is covered by water (59%) and trees (27%) within 3 km, water (62%) and trees (27%) within 16 km, and water (55%) and trees (21%) within 80 km.

3 km

86 m

water 59%

16 km

229 m

water 62%

80 km

396 m

water 55%

treesgrasslandcroplandartificial surfaceswater

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

January weather nearby: Ōhara 2.0 km · Katsuura 12 km · Mobara 24 km · Kamogawa 31 km · Ōamishirasato 32 km · Ōami 33 km · Tōgane 36 km · Sodegaura 40 km

Japan travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B; 100 V · 50 / 60 Hz
Prices: ≈ 65% of US; price level, 2025
GDP per capita: $35,951; 2025
Happiness: 6.1 / 10; World Happiness, 2025
Safe drinking water: 99%; of population, 2024
Homicide rate: 0.2; per 100k, 2023
Road deaths: 3.6; per 100k/yr, 2019
Income group: High; World Bank
English: Very low; EF EPI 446
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 Isumi (35.23°, 140.4049°, elevation 1 m), 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).

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

	Clearer (%)	Cloudier (%)
1	71	29
2	71	29
3	71	29
4	71	29
5	71	29
6	70	30
7	70	30
8	69	31
9	68	32
10	67	33
11	66	34
12	65	35
13	64	36
14	63	37
15	62	38
16	62	38
17	61	39
18	60	40
19	60	40
20	60	40
21	60	40
22	60	40
23	60	40
24	60	40
25	59	41
26	60	40
27	60	40
28	60	40
29	61	39
30	61	39
31	61	39

	Rain chance (%)
1	32
2	32
3	32
4	32
5	33
6	33
7	33
8	33
9	34
10	34
11	35
12	35
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	37
24	37
25	36
26	36
27	35
28	34
29	34
30	33
31	33

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

	Clearer (%)	Cloudier (%)
1	71	29
2	71	29
3	71	29
4	71	29
5	71	29
6	70	30
7	70	30
8	69	31
9	68	32
10	67	33
11	66	34
12	65	35
13	64	36
14	63	37
15	62	38
16	62	38
17	61	39
18	60	40
19	60	40
20	60	40
21	60	40
22	60	40
23	60	40
24	60	40
25	59	41
26	60	40
27	60	40
28	60	40
29	61	39
30	61	39
31	61	39

	Rain chance (%)
1	32
2	32
3	32
4	32
5	33
6	33
7	33
8	33
9	34
10	34
11	35
12	35
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	37
24	37
25	36
26	36
27	35
28	34
29	34
30	33
31	33

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

	Clearer (%)	Cloudier (%)
1	71	29
2	71	29
3	71	29
4	71	29
5	71	29
6	70	30
7	70	30
8	69	31
9	68	32
10	67	33
11	66	34
12	65	35
13	64	36
14	63	37
15	62	38
16	62	38
17	61	39
18	60	40
19	60	40
20	60	40
21	60	40
22	60	40
23	60	40
24	60	40
25	59	41
26	60	40
27	60	40
28	60	40
29	61	39
30	61	39
31	61	39

	Rain chance (%)
1	32
2	32
3	32
4	32
5	33
6	33
7	33
8	33
9	34
10	34
11	35
12	35
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	37
24	37
25	36
26	36
27	35
28	34
29	34
30	33
31	33

	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