DECEMBER		2004
Weather Report, Climatic conditions Recorded from Raymond Terrace
Using a WM-918 Electronic Weather Station, and Nylex Rain Gauge 1000.
© 2004	by:  Grant Burgess		Circulation:	22 +	Frequency:  Monthly		Issue #:	108
My Daily Min/Max Air Temperatures & Rainfall Readings can be Found Weekly
in the Port Stephens Examiner.          Circulation: 27 235
The Average Max Temp was			28.54	°C	The Avg Max Wind Gust was			34.88	km/h
(which is 0.63 °C Below average)					(A Record High For Dec)
The Highest Max Temp was			42.4	°C	(which is 5.83 km/h Above average)
(A Record For Dec)					The Prevailing Wind Direction was			S
(recorded on the 1st at 1517)					(the average wind direction is S)
The Lowest Max Temp was			20.2	°C	The Max Wind Gust was			74.9	km/h
(recorded on the 2nd at 0859n)					(A Record For Dec)
					(recorded from the SSW on the 25th at 1814p)
The Average Min Temp was			17.11	°C
(which is 0.48 °C Above average)					The Avg Daily Wind Run was			167.09	km
The Highest Min Temp was			22.8	°C	The Max Daily Wind Run was			267.9	km
(A Record For Dec)					(recorded on the 30th)
(recorded on the 1st at 0119)					The Min Daily Wind Run was			64.5	km
The Lowest Min Temp was			11.4	°C	(recorded on the 3rd)
(recorded on the 29th at 0452)
					The Avg Min Wind Chill was			14.57	°C
The Avg Max Relative Humidity was			95.52	%	(A Record Low For Dec)
(which is 3.63 % Above average)					(which is 0.44 °C Below average)
The Avg Min Relative Humidity was			43.35	%	The Min Wind Chill was			6	°C
(which is 4.90 % Above average)					(A Record For Dec)
					(recorded on the 28th at 0703)
The Avg Max Dew-Point was			19.22	°C
(which is 0.34 °C Above average)					The Total Monthly Rainfall was			90.7	mm
The High Max Dew-Point was			23.3	°C	(which is 18.46 mm Above average)
(A Record For Dec)					The Median Monthly Rainfall is			54.40	mm
(recorded on the 10th at 1650p)					The Number of Rain Days was			15	days
The Avg Min Dew-Point was			12.43	°C	(A Record High For Dec)
(which is 1.26 °C Above average)					(which is 6.29 days Above average)
The Low Min Dew-Point was			4.8	°C	The Cumulative Yearly Rainfall is			1120.0	mm
(recorded on the 28th at 1225)					(which is 5.18 mm Below average)
					The Highest Daily Rainfall was			19.0	mm
The Avg Max Heat Index was			29.90	°C	(recorded on the 25th)
The High Max Heat Index was			41.3	°C
(recorded on the 1st at 1524)					PHENOMENA:  (Number of Days with)
					Thunderstorms	13	Avg =	5.00
The Avg Min Grass Temp was			13.76	°C	Distant Ts’s	17	Avg =	6.80
The Min Grass Temp was			7.7	°C	Hail	1	Avg =	0.13
(recorded on the 29th)					Dew	3	Avg =	18.33
					Fog	2	Avg =	4.33
					Frost	0	Avg =	0.00
Weather Chases
~ Wed 1 Nov - With a gusty NW wind blowing I ventured out along Nobby's Breakwall with BoM standard anemometer
& video camera in hand. After running through some blowing sand to near the BoM's anemometer I recorded a gust
of 90km/h at 1310, with temperatures over 40°C, sensational.
Hail Reports
~ Numerous hail events occurred through December in the Hunter (too many to mention). The reports I have are:
9th - Torrential rain mixed with rare 0.8cm stones and strong winds strike Western Ray Tce
13th - Hexham (1730) 1-2cm stones with amazing cloud structure, and later (1830) Morpeth area 1-2cm stones
Record High Number of Thunder Days for Any Month
~ I recorded a record number of both Thunderstorms & Distant Ts's.
Previous high for Thunderstorms was Dec 1997 with 9 days,
and for Distant Ts's was 11 days on both Jan & Sep 2004.