1-4 Yearly Hydrometeorological Data |  |  |  |  |
Items | 2003 | 2002 |
Temperature:Average Annual Temperature | (oC) | 16.8 | 16.9 |
Annual hignest Temperature | (oC) | 40.1 | 31.9 |
Date Appeared | (Day/month) | 8月1日 | 7月15日 |
Annual Lowest Temperature | (oC) | -5.4 | -3.8 |
Date It Appeared | (Day/month) | 1月5日 | 12月28日 |
Precipitation:Total Annual Precipitation | (mm) | 882.8 | 13329 |
Annual number of heaviest Precipitation | (day) | 121 | 125 |
In one day the Heaviest Precipitation |  | 50.5 | 108.2 |
Date It Appeared | (Day/month) | 7月5日 | 6月20日 |
Sunshine:Annual Sunshine Time | (hour) | 2013.6 | 20121 |
Annual Sunshine Percentage | (%) | 45 | 45 |
Average Annual Relative Humidity | (%) | 74 | 77 |
Average Annual Wind-force | (m/second) | 2.7 | 2.9 |
Average Annual Atmospheric Pressure | (millibar) | 1016 | 1015.7 |
Water Level:Peak level | (m) | 4.09 | 4.22 |
Date It Happened | (Day/month) | 7月6日 | 6月21日 |
Lowest Water Level | (m) | 2.98 | 2.95 |
Date It Happened | (Day/month) | 6月25日 | 1月23日 |
Annual Average Water Level | (m) | 3.31 | 3.35 |
Note: 1. Non-frost Season: 229Days |  |  |
2. Frost Season: The First Day: 11/13/2003, the Final Day: 3/28/2003 |
3. Snow Season: The First Day: not have, the Final Day: 3/5/2003 |  |
4.Water Level is measured at Wuxi Nanmen Great Cannel. (Wusong basic level) |  |