Located in the warm temperatezone, Tianjin has sub-humidcontinental monsoon climate.As it is influenced by the seaand ocean in summer and bythe continent in winter, thefour seasons here are clear cut,which results in a great varietyof temperature throughout the year. The average temperaturein a year is 11.1 - 12.0 C . The coldest month is January, with anaverage temperature of less than -4 C; the hottest month is July,with an average temperature of about 26 C. On average, thefrost-free period lasts about 200 days. The annual precipitationis between 550 and 680 mm, 75% of which occurs in June, Julyand August. The sunshine time in the city is relatively long: 1,921.0 - 2,852.0 hours per year. The average wind speed throughout theyear is 2.5 m/s.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pressure (hPa)	10280	10259	10212	10139	10096	10050	10034	10071	10144	10203	10251	10275

Pressure (hPa)
10280	10259	10212	10139	10096	10050	10034	10071	10144	10203	10251	10275
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

fig.1 monthly mean pressure

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Temp (oF)	25.7	30.9	42.6	57.7	68	76.2	79.8	78	69.6	57	41.5	30
Temp (oC)	-3.5	-.6	5.9	14.3	20	24.6	26.6	25.6	20.9	13.9	5.3	-1.1

Temperature (oC|oF)
-3.5 oC 25.7 oF	-.6 oC 30.9 oF	5.9 oC 42.6 oF	14.3 oC 57.7 oF	20 oC 68 oF	24.6 oC 76.2 oF	26.6 oC 79.8 oF	25.6 oC 78 oF	20.9 oC 69.6 oF	13.9 oC 57 oF	5.3 oC 41.5 oF	-1.1 oC 30 oF
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

fig.2 monthly mean temperature

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Min Temp (oF)	18.5	23.1	34.3	48	58.2	67.4	72.8	71.4	61.5	48.7	34.3	23.1
Min Temp (oC)	-7.5	-4.9	1.3	8.9	14.6	19.7	22.7	21.9	16.4	9.3	1.3	-4.9
Max Temp (oF)	35.2	41	53	68.9	78.9	86.1	87.8	86.3	79.3	67.4	51	39
Max Temp (oC)	1.8	5	11.7	20.5	26.1	30.1	31	30.2	26.3	19.7	10.6	3.9

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Min Temp (oF)	-.1	3.7	.1	28.2	40.6	50.1	61.1	57.9	44.2	30.2	14.9	5.5
Min Temp (oC)	-17.8	-15.7	-17.7	-2.1	4.8	10.1	16.2	14.4	6.8	-1	-9.5	-14.7
Max Temp (oF)	54.8	69.4	79.5	91.2	99.3	102.7	104.9	97.5	94.6	85.6	73.5	57.9
Max Temp (oC)	12.7	20.8	26.4	32.9	37.4	39.3	40.5	36.4	34.8	29.8	23.1	14.4

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hunidity (%)	56	54	53	51	56	64	76	77	68	64	63	59

Hunidity (%)
56	54	53	51	56	64	76	77	68	64	63	59
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

fig.3 monthly mean hunidity

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hunidity (%)	2	2	4	4	7	5	18	20	13	8	8	6

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	3.3	4	7.7	20.9	37.7	71.1	170.6	145.7	46.1	22.7	10.4	4.1
Days (Precipitation<0.1mm)	1.8	2.1	2.9	4.4	6	8	12.4	10.2	6	4.5	3.5	2
Days (Precipitation<10mm)	.1	.1	.1	.4	1.2	2	4.7	3.6	1.7	.6	.2	0
Days (Precipitation<25mm)	0	0	0	.2	.4	.8	2.2	1.7	.5	.2	0	0
Days (Precipitation<50mm)	0	0	0	.1	0	.3	.8	.7	.1	0	0	0

Precipitation (mm)
3.3	4	7.7	20.9	37.7	71.1	170.6	145.7	46.1	22.7	10.4	4.1
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

fig.4 monthly mean precipitation

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	14	21.7	59	74	61.7	130.5	121.5	157.8	66.1	42.3	23.1	10.3

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Wind Speed (m/s)	2.3	2.6	3	3.3	3.1	2.6	2.1	1.8	2	2.2	2.2	2.2

Wind Speed (m/s)
2.3	2.6	3	3.3	3.1	2.6	2.1	1.8	2	2.2	2.2	2.2
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

fig.5 monthly mean wind speed

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Wind Speed (m/s)	20	28	18.5	17	17	17	18	15	13	25	16.5	24.5

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Duration (hour)	178.3	176.9	205.3	229.8	265.7	251.2	217.6	223.3	223.3	211.1	173.1	166.2

Duration (hour)
178.3	176.9	205.3	229.8	265.7	251.2	217.6	223.3	223.3	211.1	173.1	166.2
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

fig.5 monthly mean sunshine duration

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Percentage (%)	59	59	56	58	60	57	48	53	60	61	57	57

Remarks:
Weather forecast is provided by China Meteorological Administration.
Climate information is based on monthly averages for 30-year period of 1971-2000.
Precipitation includes both rain and snow.

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