PITSFORD HALL WEATHER STATION
CLIMATOLOGICAL OBSERVATIONS FOR MAY 2000        

                1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th	11th	12th	13th	14th	15th	16th	17th	18th	19th	20th	21st	22nd	23rd	24th	25th	26th	27th	28th	29th	30th	31st
Temperatures																															
Air Max (C)	17	16	10.4	11.3	15	22.5	20.5	17.5	20.5	16.9	15.2	19.9	23	24.2	25.1	21.1	14.4	14	12.1	15.8	15.5	17.5	13.2	16.8	15	12.1	13.6	13.5	15.5	17.7	18.4
Air Min (C)	6.1	7.1	5.5	6.4	7	7.1	9.8	8	10.2	10.1	8.2	7.6	10.1	11.9	14.9	13.4	8.9	6.1	7.9	4.4	7	5.6	10.1	7.1	7.2	7.6	5.2	5.2	4.6	7.1	5.8
Dry Bulb (C)	11.6	8.2	8	7.4	8.9	12.4	10.7	10.5	11.9	11.4	9.9	10.4	11.6	15	17.3	14.9	10	9.1	9.1	9.4	9.9	10.1	10.8	10.5	10	10.1	10	6.2	9.8	9.5	11.7
Wet Bulb (C)	9.9	7.5	7.5	6.2	7.9	10.8	10.1	10	11.6	11.2	9	9.6	10.7	14.8	16.4	13	7.9	7.9	7.6	8.4	9.4	8.9	10	10	8.6	9.5	8	5.8	8.1	8	9.8
RH (%)	        79	90	93	83	86	81	92	93	96	98	88	90	89	98	91	79	73	84	80	87	93	84	90	96	82	92	74	94	78	80	77
Rainfall																															
Total (mm)	_	_	0.4	_	_	tr	tr	_	_	0.1	_	1	_	_	_	_	6.6	2.9	4.3	5.9	tr	2.6	4.1	4	2.9	19.8	21.8	4.2	_	11.9	4.8
Duration (hrs)	_	_	2.5	_	_	0.1	0.3	_	_	0.5	_	2	_	_	_	_	1.5	1.5	1.9	7.8	_	2.9	6.3	3.5	1.8	13.8	10.9	2.5	_	1.3	6
Acidity (pH)	_	_	4.8	_	_	_	_	_	_	_	_	6.57	_	_	_	_	6.5	5.8	6.15	6.25	_	6.23	5.81	5.88	5.95	5.83	6.04	6	_	5.79	5.71
Winds (mph)																															
Direction	e	ne	e	e	e	ne	ne	n	ne	e	e	se	ne	calm	calm	s	w	w	nw	ne	n	ne	s	ne	nw	sw	sw	n	n	ne	ne
Speed (0830)	11	6	3	12	9	7	6	5	2	3	19	3	6	0	0	4	7	6	9	7	6	3	5	2	10	6	22	16	10	2	2
Speed (24 hrs)	6	6	7	8	7	6	6	2	3	9	12	4	2	2	3	7	8	7	1	8	5	3	10	3	5	5	7	6	4	3	3
Max Gust	25	26	34	26	27	25	25	25	16	40	43	21	13	12	13	31	39	29	35	13	23	17	22	18	35	35	35	34	26	25	20
Pressure (mb)																															
At 0830hrs	1026	1027	1025	1025	1020	1016	1017	1018	1019	1020	1021	1021	1021	1022	1019	1013	1009	1006	1007	1014	1007	1013	1013	1016	1010	1013	1005	999	1012	1014	1019
From 0600hrs	0.8	0.6	0	0	0	0	1	0	0.5	0.5	0	0.5	0.5	0.9	-1	0	3	0	0	0.8	0	1	-1.9	1	1.5	-0.1	2	3.3	2.5	-0.2	1
Insolation																															
Cloud types	cc	st	ac	ac	ac	cs	obs	obs	obs	obs	obs	ac	as,ac	obs	obs	ac	ac	ac/sc	ac	cc	sc	ac	ac	cu/ac	cu	sc	cu,sc	st	cu,sc	as,ac	cc,cs
Cloud cover	1	8	8	8	7	4	9	9	9	9	9	8	7	9	9	7	8	6	8	1	8	2	8	5	4	8	3	8	6	7	5
Sunshine (hrs)	7.7	6.8	0	0.7	6.3	11.1	5.2	1.8	4.1	0.8	2.1	3.6	8.7	8.6	9.8	9	3	2.1	6.7	5.6	4.2	8.3	1.3	5.8	8.4	0	9.7	3.6	10.7	2.5	7.9
Visibility	8	5	5	6	5	6	4	4	3	4	6	6	5	3	4	7	8	7	8	7	7	7	6	6	7	7	7	7	8	7	7
Other Ppt																															
Snow/sleet falling	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_
Depth of snow	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_
Hail (<5mm)	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	1	_	_	_	_	_	1	_	_	1	_	_	_
Hail (>/=5mm)	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_
Other Obs																		 													
Thunder heard	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	1	1	_	_	_	_	_	_	_	_	1	_	1	_
Lightning seen	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	1	_	_	_	_	_	_	_	_	_	_	_	1	_
Ground Obs																															
Grass Min (C)	2.2	4.1	5.3	7.5	7.1	4.4	7.1	6.5	12	6.6	7	6.1	11.1	8.6	13.3	10.5	7.1	5.5	6.9	1.4	7.2	3.5	8.4	3.6	5.6	5.4	5.4	6.1	2.4	5.7	3.3
Concrete Min (C)5.4	8.1	7.3	6.6	6.2	5.7	9.1	8.9	11.9	10.4	8.1	7.2	10.9	11.1	14	13.5	8.5	n/a	7.5	3.9	7.1	5.5	10.4	6	6	6.1	8.2	8.2	6.8	7.9	7.6
Bare Earth (C)	11.2	9.7	10	9.1	10.6	12.5	12	12.5	13.5	13.4	11.5	12.4	13.5	16.9	23.5	17	10.8	10.5	10.5	8.7	11.8	10	11	11.2	10	10.5	10.6	8.1	10.6	10.8	9.9
Soil Temps																															
5cm	        9.2	9.9	11	9.2	9.8	9.8	12	12.4	12.4	13.2	11.9	10.9	12.9	15.2	16.6	16.4	12	11.8	11.8	9.2	11.7	10.2	12.4	10.7	10.8	11	9	9.3	8.6	10.4	9.6
10cm	        10.5	11	11.6	10.5	10.9	10.9	13	13.2	14	14	12.8	12	13.8	15.5	16.8	17.2	14.6	11.6	12.6	11.5	12.9	12.2	13.6	12.1	12.5	12	10.7	11	10.5	12.1	11.4
20cm	        11.3	11.6	13.4	11.1	11.3	11.4	13.5	13.9	14.4	14.5	13.5	12.6	14.1	15.7	17	17.6	16	14	14	12.6	13.4	13	14	13	13.2	12.5	11.6	11.6	11.5	12.8	12.3
30cm	        12	12.1	13.7	11.2	11.8	12	13.6	14.1	14.5	14.8	14.4	13.4	14.5	16	17.3	18	17	14.5	14.1	13.6	14	14	14.5	13.6	13.9	13.4	12.4	12.4	12.1	13.4	13
40cm	        11.8	11.8	12.4	11.6	11.6	11.5	13.2	14	13.9	14.4	14.1	13.2	14.1	15.3	16.5	14	17	15	14.5	14.3	14.1	14.1	14.5	13.9	14	13.4	13	12.9	12.7	13.4	13.4
50cm	        11.7	11.9	12	12	12	12	13	14.2	14	14.4	14.4	14	14.1	15	16	16.5	16.7	15	14.6	14.4	14.4	14.4	14.7	14.1	14.1	13.5	13.3	13.3	13	13.5	13.5
100cm	        10.2	10.5	10.6	10.7	10.8	10.7	11	11.4	12.6	11.8	12	12.1	12.3	12.5	12.8	13	13.5	13.2	13.1	13.5	13.4	13.2	13.5	13.4	13.2	13	13.1	13	13	13	13
Slab	        0	0	1	1	0	0	0	1	0	0	1	0	0	0	0	0	0	1	1	0	1	1	2	2	1	1	2	2	2	0	2
Ground																															
Without snow	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	1	1	1	1	1	1	1	1	1	1	2	2	2	1	1
With snow	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_	_