APRIL 2008
Weather Report, Climatic conditions recorded from Raymond Terrace, NSW Australia
Location: Lat 3246'S, Long 15146'E Elevation: 8m Approx 12km from the ocean to the SE.
Using a WM-918 Electronic Weather Station, and TB3 Hydrological Services Rain Gauge.
My daily data can be found weekly in the Port Stephens Examiner. Circulation: 29 645
2008 by: Grant Burgess Circulation: 21 + Frequency: Monthly Issue #: 148
The Average Max Temp was 22.36 C The Avg Max Wind Gust was 29.46 km/h
(which is 2.23 C Below average) (A Record For Apr)
The Highest Max Temp was 29.9 C (which is 5.40 km/h Above average)
(recorded on the 2nd at 1537) The Prevailing Wind Direction was S
The Lowest Max Temp was 17.8 C (the average wind direction is S)
(recorded on the 22nd at 1308) The Max Wind Gust was 41.4 km/h
(recorded from the NNW on the 28th at 0726)
The Average Min Temp was 12.54 C  
(which is 0.60 C Below average) The Avg Daily Wind Run was 154.08 km
The Highest Min Temp was 16.1 C (A Record For Apr)
(recorded on the 25th at 2035p) (which is 83.27 km Above average)
The Lowest Min Temp was 5.5 C The Max Daily Wind Run was 269.1 km
(recorded on the 4th at 0538) (A Record For Apr)
(recorded on the 28th)
The Avg Max Relative Humidity was 95.63 % The Min Daily Wind Run was 77.9 km
(which is 0.53 % Below average) (recorded on the 13th)
The Avg Min Relative Humidity was 49.73 %  
(which is 3.34 % Above average) The Avg Min Wind Chill was 9.13 C
(A Record For Apr)
The Avg Max Dew-Point was 16.64 C (which is 2.76 C Below average)
(which is 0.50 C Below average) The Min Wind Chill was 0 C
The High Max Dew-Point was 20.8 C (recorded on the 30th at 0626)
(recorded on the 14th at 1128p)  
The Avg Min Dew-Point was 8.82 C The Total Monthly Rainfall was 286.0 mm
(which is 1.37 C Below average) (A Record For Apr)
The Low Min Dew-Point was -1.9 C (which is 182.99 mm Above average)
(recorded on the 3rd at 1919) The Median Monthly Rainfall is 106.85 mm
The Number of Rain Days was 16 days
The Avg Max Heat Index was 23.78 C (which is 5.10 days Above average)
(A Record For Apr) The Cumulative Yearly Rainfall is 715.8 mm
(which is 2.50 C Below average) (A Record For Apr)
The High Max Heat Index was 28.8 C (which is 304.06 mm Above average)
(recorded on the 2nd at 1533) The Highest Daily Rainfall was 84.0 mm
(A Record For Apr)
The Avg Min Grass Temp was 10.36 C (recorded on the 25th)
(which is 0.69 C Above average)  
The Min Grass Temp was 2.2 C PHENOMENA: (Number of Days with)
(recorded on the 4th) Thunderstorms 0 Avg = 2.18
Distant Tss 1 Avg = 4.67
Hail 0 Avg = 0.08
Dew 21 Avg = 22.20
Fog 2 Avg = 9.90
Frost 0 Avg = 0.20
Extreme Rainfall
~ For the second time in under 12 months flood warnings were issued for rivers around the Hunter. Consistent rains
during summer along with two particularly heavy rainfall days this month culminated in minor to moderate flooding
particularly along the Williams River. I recorded 62.0mm till 0900 on the 23rd which consisted of only light to moderate
but steady rain. The 25th however saw 84.0mm till 0900 with light rain punctuated by some very heavy showers.
One in particular at 0419 produced a max rain rate of 180mm/hr which is a record since the new gauge was bought
into use from 1 Jan - note this surpassed that of any storms we received thru the whole of summer..
Rainfall Rate Calculations - for new TB3 gauge
~ As mentioned in my Oct 2007 report, I am still getting an erratic tipping pattern. I have since obtained data from my
mate's gauge (same sort as mine) for similar results. I contacted Hydrological services regarding this but they have
apparently never heard of this. As a result I have adapted my rain rate calculations to be taken over 1mm at a time - that
is the time taken for each block of 5 tips to occurr.
Barrington Tops Additions
~ Fri 25th - Made another trip to Hunter Springs to gather data & install a new wireless thermometer for Mrs Wright.
With this she will now be able to read the temperatures from inside the comfort of her home to a resolution of 0.1C.