Monthly Weather Data Derbyshire Lane Sheffield South Yorkshire Dec 1998
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	Max Temp	Min Temp	Dry Bulb	Wet Bulb	Grass Min	Soil Temp	Barometer	Rain	Humidity	Max Gust	Average	Force	Win Dir	Comments
Day	Deg F	Deg F	Deg F	Deg F	Deg F	Deg F	Inches	MM	Percent	MPH	MPH	Beaufort
1	42.8	36.2	37.2	36.0	30.9	39.9	30.55	0.0	88				SW	Bright early
2	43.0	34.0	35.4	34.7	28.6	40.1	30.48	0.0	93				NE
3	44.6	28.2	29.3	28.8	18.0	39.2	30.19	2.8	92				S
4	40.1	28.9	33.8	32.2	20.9	38.3	29.99	0.0	83				NNW	Snow less than 2 cm cover
5	38.7	31.5	37.2	35.4	26.6	37.6	29.90	1.0	83				WNW
6	38.8	29.0	30.2	28.4	21.8	36.5	30.19	0.0	78				WNW
7	47.1	29.0	33.8	32.9	20.4	35.8	30.25	4.0	90				NW
8	49.3	33.0	46.6	46.0	28.1	37.6	30.05	3.3	96				S
9	47.7	35.3	36.9	36.5	30.0	39.0	30.10	0.1	96				S	Fog then brighter
10	49.1	35.5	47.1	46.0	30.9	40.1	29.93	2.3	92				S
11	53.4	41.0	43.3	42.6	33.5	41.0	30.00	2.1	94				WSW
12	51.4	42.0	48.2	47.1	38.6	42.3	29.88	8.2	92				S
13	56.1	44.0	45.7	42.4	40.7	42.8	30.17	10.2	74				W
14	57.9	44.8	55.4	52.5	41.0	44.1	30.05	1.7	81				W
15	50.0	45.6	47.8	45.8	41.9	45.5	30.16	0.4	81				SW
16	50.0	42.9	46.0	43.0	38.0	43.9	30.26	0.0	76				WSW
17	52.5	44.2	47.8	45.3	40.9	43.9	30.10	0.0	85				S
18	46.2	40.1	47.3	40.1	31.1	43.5	29.93	4.1	83				SW
19	45.0	40.0	42.1	40.6	36.5	42.8	29.80	0.1	82				W
20	38.5	31.5	42.8	30.2	25.6	40.3	30.05	0.0	75				N	Snow flurries
21	41.5	26.9	32.5	27.5	20.1	37.9	30.14	0.8	66				NW	As snow not lying
22	44.4	30.0	30.4	36.9	27.5	37.4	30.12	1.4	95				S
23	43.9	34.8	37.4	40.5	31.2	38.3	29.95	0.0	87				S
24	52.5	34.0	41.9	33.8	27.6	38.1	29.93	1.5	80				SW
25	52.7	35.1	35.8	48.2	31.8	40.3	29.80	3.1	84				SSW	Sleet evening
26	52.2	37.3	50.4	36.3	32.2	40.1	29.75	2.1	81				S	Very windy
27	43.9	36.8	38.3	35.1	31.4	39.7	29.43	2.6	77				SSE
28	42.4	34.9	37.4	35.6	31.6	39.20	29.48	0.0	91				SW
29	50.9	33.0	36.5	35.6	28.5	38.1	29.72	0.0	91				SSE
30	52.0	35.6	50.9	47.3	33.3	39.7	29.45	1.5	75				S
31	48.7	42.0	45.5	44.8	35.0	41.0	29.57	0.5	94				SE
Total	1467.3	1117.1			954.2	1244.0		53.8	2635.0	0.0	0.0	0.0
Ave	47.3	36.0			30.8	40.1		1.7	85.0	#DIV/0!	#DIV/0!	#DIV/0!
								61.9%
	N	1.0			Number of Air Frosts			8.0		Red indicates as Snow
	NNE	0.0			Number of Ground Frosts			20.0		Light green Sleet
	NE	1.0			Days of measurable Rain			21.0		Blue Trace Conditions
	ENE	0.0			Days of rain greater than 10 mm			1.0		Purple Indicates Freezing Rain
	E	0.0			Days when gusts exceeded 50 mph			0.0
	ESE	0.0			Days when average Max exceeded			19.0
	SE	1.0			Days below average Max			11.0
	SSE	2.0			Days above average Min			13.0
	S	10.0			Days below average Min			17.0
	SSW	1.0
	SW	5.0			1st seven day average			36.6	2.5
	WSW	2.0			2nd Seven day average			45.8	7.6
	W	3.0			3rd seven day average			42.5	5.8
	WNW	2.0			4th seven day avaerage			41.1	5.0
	NW	2.0			Final few days average			43.7	6.5
	NNW	1.0			Overall Average			41.9	5.5