DECEMBER 1997

	Daily Data
	Weather Diary

			  1997  Day	1974-96				1997	Day	1974-96
Mean Max Temperature	   8.0		 6.5	Highest Max temp	10.8	 6	11.5
Mean Min Temperature	   5.5		 3.9	Lowest Min temp		 1.5	 1	-4.5
Mean Sea Temperature	   9.6		 8.1	Lowest grass minimum	-2.0	29     -11.5
30 cm Earth temperature	   6.5		 5.8	Days with ground frost	 5		 9.2
100cm Earth temperature	   7.5		 6.8	Days with air frost	 0		 3.2
Total Rainfall (mm)	 104.7	       103.2	Days with snow/sleet	 4		11.2
Wettest Day (mm)	  18.2	 5	14.3	Days snow cover at 09hr	 0		 3.3
Rain Days ( 0.1mm +)	  23		25.6	Days with hail		 4		12.9
Wet Days (0.9mm +)	  17		20.3	Days fog during 24hrs	 1		 2.4
Total sunshine, hrs	  23.8		17.1	Days with fog at 09hrs	 0		 0.3
Sunniest day, hrs	   4.6	14	 3.4	Days with NIL sun	14		15.5
Mean wind speed, kts	  15.9		19.6	Days with gale		 4		 9.2
Maximum gust, kts	  55	18	71.0	Days with thunder	 0		 0.4
Mean Sea Level pressure	1005.6	      1006.4	Days with aurora	 1		 2.6
							
Wind Direction%							
	North		   6.7		12.4		S. West		13.3		16.2
	N. East		  16.7		 3.8		West		20.0		17.9
	East		   3.3		 9.2		N. West		 3.3		 9.5
	S. East		  23.3		12.4				
	South		  16.7		19.4		CALM		 0.0		 2.5