Monthly Weather Data Derbyshire Lane Sheffield South Yorkshire May 1999
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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	66.2	47.0	57.2	51.4	40.1	53.6	30.05	0.0	65				N
2	64.4	45.3	49.1	46.4	44.4	54.9	30.17	0.0	93				E
3	72.9	45.8	62.4	56.5	36.8	54.9	30.12	0.0	67				E
4	63.1	45.7	50.0	48.4	39.1	55.4	30.12	0.0	88				NE
5	63.3	45.0	54.5	50.0	43.2	54.9	29.95	1.5	71				ENE
6	64.4	47.8	54.5	52.7	48.0	55.4	29.88	0.0	88				SSE
7	66.9	46.0	57.6	54.3	39.5	55.2	29.88	18.6	80				SE	Lightning PM
8	63.5	47.1	55.4	51.3	44.0	56.1	29.78	3.6	74				SSE
9	67.1	50.8	59.2	54.5	44.0	56.1	29.96	1.5	72				S
10	65.3	52.0	56.3	52.7	48.1	56.8	29.75	2.8	77				SW	Thundery showers
11	65.5	49.0	57.2	51.8	45.0	56.3	29.75	0.9	67				SW
12	65.3	48.5	59.9	53.1	44.0	56.5	29.75	1.0	61				SW
13	62.2	46.3	56.3	50.9	39.6	55.8	29.75	4.0	67				SW
14	66.7	46.5	52.5	50.9	41.2	55.9	29.82	7.9	89				N	Thundery rain
15	63.1	47.0	51.4	49.6	44.0	56.5	30.12	0.2	87				ENE
16	62.6	47.0	53.4	49.1	46.0	56.7	30.20	0.1	72				NW
17	60.3	43.1	47.8	43.3	40.8	55.9	30.23	0.0	67				NE
18	63.1	43.8	59.7	52.7	42.0	54.9	30.08	0.0	60				NE
19	69.8	47.0	53.6	50.9	44.2	55.6	29.94	0.0	82				NE
20	74.7	46.0	67.1	58.8	41.0	57.2	29.91	0.0	59				N
21	61.7	51.2	55.4	51.1	47.9	58.1	29.85	1.8	73				SW
22	62.6	44.3	50.9	46.6	40.9	55.4	29.96	0.2	70				W
23	66.0	44.1	60.8	55.0	48.0	55.9	29.98	0.0	67				SW
24	62.4	52.0	57.2	52.7	50.9	56.8	29.95	6.0	72				WSW
25	62.8	44.1	51.3	46.4	41.0	55.4	30.08	0.0	65				W
26	69.3	46.4	61.5	55.6	44.9	56.3	30.10	0.0	67				SW
27	75.7	49.0	57.2	54.3	39.4	56.8	30.06	8.5	82				Calm	Thunder and lightning at night
28	68.0	51.1	62.1	58.1	50.0	59.4	29.93	0.0	77				SW
29	73.4	51.0	65.5	59.9	47.1	51.0	30.08	1.9	71				WSW
30	52.0	47.0	48.2	46.4	46.9	59.5	30.15	0.2	86				NNE
31	62.6	45.2	51.8	46.4	45.2	57.0	30.24	0.0	63				S
Total	2026.9	1462.1			1357.2	1736.2		60.7	2279	0	0	0
Ave	65.4	47.2			43.8	56.0		2.0	73.5	#DIV/0!	#DIV/0!	#DIV/0!
								98.1%
	N	3.0
	NNE	1.0			Number of Air Frosts			0		Red indicates as Snow
	NE	4.0			Number of Ground Frosts			0		Light green Sleet
	ENE	2.0			Days of measurable Rain			17		Blue Trace Conditions
	E	2.0			Days of rain greater than 10 mm			1
	ESE	0.0			Days when gusts exceeded 50 mph			0
	SE	1.0			Days when average Max exceeded			28
	SSE	2.0			Days below average Max			2
	S	2.0			Days above average Min			26
	SSW	0.0			Days below average Min			5
	SW	8.0
	WSW	2.0			1st seven day average			56.0	13.3
	W	2.0			2nd Seven day average			56.8	13.8
	WNW	0.0			3rd seven day average			55.7	13.2
	NW	1.0			4th seven day avaerage			57.0	13.9
	NNW	0.0			Final few days average			55.2	12.9
					Overall Average			56.2	13.4