CONDITIONS:

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Sea .Water temp. 18 Degrees Celcius. Weather etc on links at bottom of page.

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1.0. CLIMATIC CONDITIONS.

1.1. Temperate : Sydney. Latitude 33 degrees 51 minutes South. Longitude 151 degrees 13 minutes East. Elevation 48 m.

2. CLIMATE. figures. SUMMER. WINTER. 2.1. SHADE DRY BULB TEMPERATURE: Mean maximum deg. C. 25.5 17.5. Mean minimum deg. C. 18.5. 9.

Average number of days when maximum exceeds or equals; 40 deg . C. - - 35 deg . C. 2. - 30deg . C. 8. 0. 25deg . C. 45. 1.

Average number of days when maximum is less than; 20deg.C. 3. 78. 15deg.C. 0. 11. 10deg.C. - 0.

2.2. RELATIVE HUMIDITY: Average percentage at time of 56. 49. maximum dry bulb temperature.

2.3. SUNSHINE HOURS: SUMMER. WINTER. Average number of days when sunshine hours exceed: 12. 11. - 9. 36. 17. 6. 54. 52. 3. 67. 75. 2.4. RAINFALL: Average total mm. 293. 315. Average number of wet days. 36. 33. Maximum rate , mm per hour over 5-minute period occurring once in 10 years average;142.

SUMMER. WINTER. Quarter from which rain is: usually received. S. WSW. seldom received. NW. NNW.

2.5. PREVAILING WINDS; Quarter; morning ENE. W. afternoon. ENE. W. night. ENE. W.

WIND GUST; MAXIMUM (KNOTS) WNW.81. S.73.

2.6. GENERAL. Thunderstorms occur on 20 days per annum. Frosts are rare., except on western plains district . Dust storms are infrequent and from W. occasional dust haze.3 Summer sea breezes from NE - SE with late change in the afternoon.

3. EXTREME TIDE LEVEL FREQUENCY. SYDNEY HARBOUR . 1914-1993.4

FREQUENCY. HEIGHT.(M). Height.(M).Date.(M/Y). 1. in 1. year. 2.18. 2.20.7/92,7/91,6/85,6/97,7/74,6/74,6/73. 2.21. 6/47. 2.22. 12/50. 2.23. 8/21. 2.24. 7/78. 2.26. 7/64. 2.27. 6/84. 1. in 10 . year. 2.30. 2.32. 6/56. 1. in 20 . year. 2.33. 2.35. 4/90. 1. in 50 . year. 2.38. 1. in 100. year. 2.41. 2.40. 5/74.

Datum of Levels Zero Camp Cove. 3 EBS Climatic Data for Sydney.pg 50. 4Source Manly Hydraulics Laboratory.

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