1-4 Yearly Hydrometeorological Data
Items | 2004 | 2003
Temperature:Average Annual Temperature | (oC) | 17.4 | 16.8
Annual hignest Temperature | (oC) | 39.1 | 40.1
Date Appeared | (Day/month) | 7月24日 | 8月1日
Annual Lowest Temperature | (oC) | -4.9 | -5.4
Date It Appeared | (Day/month) | 12月31日 | 1月5日
Precipitation:Total Annual Precipitation | (mm) | 1039.9 | 882.8
Annual number of heaviest Precipitation | (day) | 111 | 121
In one day the Heaviest Precipitation | (mm) | 77 | 50.5
Date It Appeared | (Day/month) | 6月25日 | 7月5日
Sunshine:Annual Sunshine Time | (hour) | 2170.6 | 2013.6
Annual Sunshine Percentage | (%) | 49 | 45
Average Annual Relative Humidity | (%) | 71 | 74
Average Annual Wind-force | (m/second) | 2.7 | 2.7
Average Annual Atmospheric Pressure | (millibar) | 1015.8 | 1016
Water Level:Peak level | (m) | 4.25 | 4.09
Date It Happened | (Day/month) | 6月25日 | 7月6日
Lowest Water Level | (m) | 2.92 | 2.98
Date It Happened | (Day/month) | 3月20日 | 6月25日
Annual Average Water Level | (m) | 3.25 | 3.31
Note: 1. Non-frost Season:227Days |
2. Frost Season: The First Day: 11/18/2004, the Final Day:4/4/2004 |
3. Snow Season: The First Day: 12/27/2004, the Final Day：1/18/2004 |
4.Water Level is measured at Wuxi Nanmen Great Cannel. (Wusong basic level) |