Shanghai has four distinct seasons, generous sunshine and abundant rainfall， with a pleasant northern subtropical maritime monsoon climate. Its spring and autumn are relatively short compared with summer and winter. the average annual temperature is 16 degrees celsius. the city has a frost-free period lasting up to 230 days a year, and receives an average annual rainfall of 1,200 millimeters.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pressure (hPa)	10259	10239	10204	10150	10109	10061	10044	10058	10123	10189	10234	10261

Pressure (hPa)
10259	10239	10204	10150	10109	10061	10044	10058	10123	10189	10234	10261
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)	39.5	41.5	47.8	58.2	67.2	74.8	82.2	81.8	74.6	65.6	54.8	43.8
Temp (oC)	4.2	5.3	8.8	14.6	19.6	23.8	27.9	27.7	23.7	18.7	12.7	6.6

Temperature (oC|oF)
4.2 oC 39.5 oF	5.3 oC 41.5 oF	8.8 oC 47.8 oF	14.6 oC 58.2 oF	19.6 oC 67.2 oF	23.8 oC 74.8 oF	27.9 oC 82.2 oF	27.7 oC 81.8 oF	23.7 oC 74.6 oF	18.7 oC 65.6 oF	12.7 oC 54.8 oF	6.6 oC 43.8 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)	33.9	35.9	42	51.6	60.9	69.4	77	76.8	69	59.1	48.2	37.4
Min Temp (oC)	1.1	2.2	5.6	10.9	16.1	20.8	25	24.9	20.6	15.1	9	3
Max Temp (oF)	46.5	48.5	55	66.3	75.3	81.6	89.2	88.3	80.9	72.6	62.6	51.9
Max Temp (oC)	8.1	9.2	12.8	19.1	24.1	27.6	31.8	31.3	27.2	22.6	17	11.1

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Min Temp (oF)	13.8	19.4	25.3	31.1	45.5	57.2	61.3	65.8	51.4	36.6	24.4	17.6
Min Temp (oC)	-10.1	-7	-3.7	-.5	7.5	14	16.3	18.8	10.8	2.6	-4.2	-8
Max Temp (oF)	70.7	80.6	80.6	89.9	95	99.5	101.4	102.9	100.7	93.2	81.5	74.1
Max Temp (oC)	21.5	27	27	32.2	35	37.5	38.6	39.4	38.2	34	27.5	23.4

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hunidity (%)	75	74	76	76	76	82	82	81	78	75	74	73

Hunidity (%)
75	74	76	76	76	82	82	81	78	75	74	73
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 (%)	15	14	12	9	14	24	37	29	25	20	16	15

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	50.6	56.8	98.8	89.3	102.3	169.6	156.3	157.9	137.3	62.5	46.2	37.1
Days (Precipitation<0.1mm)	9.7	10.3	13.9	12.7	12.1	14.4	12	11.3	11	8.1	7	6.5
Days (Precipitation<10mm)	1.4	2.1	4	3.3	3.3	4.9	4.1	4.2	3.6	2	1.6	1.4
Days (Precipitation<25mm)	.3	.3	.5	.5	1.2	2.2	2.1	2.2	1.7	.8	.3	.2
Days (Precipitation<50mm)	0	0	0	.1	.2	.8	.9	.8	.7	.1	0	0

Precipitation (mm)
50.6	56.8	98.8	89.3	102.3	169.6	156.3	157.9	137.3	62.5	46.2	37.1
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)	39	31.8	88	87.8	73.2	96	116.7	115.3	125.8	70.6	74.7	38.1

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Wind Speed (m/s)	2.7	2.9	3.1	3.1	3	2.9	3.1	3.2	2.8	2.6	2.5	2.4

Wind Speed (m/s)
2.7	2.9	3.1	3.1	3	2.9	3.1	3.2	2.8	2.6	2.5	2.4
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)	12.3	13.7	14	11.3	13	15.7	13	15	14	11.7	11.3	11

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Duration (hour)	123	115.7	126	156.1	173.5	147.6	217.8	220.8	158.9	160.8	146.6	147.7

Duration (hour)
123	115.7	126	156.1	173.5	147.6	217.8	220.8	158.9	160.8	146.6	147.7
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 (%)	39	37	34	40	41	35	50	54	43	45	46	47

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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