Monthly Report for August 2009

Weather Summary
Measure	Mean / Sum (anomaly)	Min	Max	Mean Time
Minimum Temperature	14.1 °C (-0.0)	9.1 °C	16.8 °C	07:48
Maximum Temperature	22.5 °C (+0.0)	17.9 °C	28.7 °C	15:45
Mean Temperature	17.9 °C (-0.0)	14.1 °C	21.4 °C
Minimum Humidity	52%	34%	86%	14:35
Maximum Humidity	90%	74%	98%	10:09
Mean Humidity	73%	57%	95%
Minimum Pressure	1014 hPa	1003 hPa	1021 hPa	12:58
Maximum Pressure	1018 hPa	1010 hPa	1024 hPa	11:05
Mean Pressure	1016 hPa	1007 hPa	1022 hPa
Mean Wind Speed	4.2 mph (+0.2)	1.8 mph	7.6 mph
Maximum Wind Speed	11.3 mph	5.8 mph	18.4 mph
Maximum Gust	16.9 mph	8.7 mph	27.6 mph	14:54
Mean Wind Direction	222° [SW]	45° [NE]	315° [NW]
Rainfall	42.1 mm (78%)	0.0 mm	34.3 mm
Maximum Hourly Rain	2.2 mm	0.3 mm	9.9 mm	14:49
Maximum 10-min Rain	1.2 mm	0.3 mm	4.7 mm	14:34
Maximum Rain Rate	17 mm/h	0.3 mm/h	66 mm/h	16:56
Minimum Dew Point	10.0 °C	4.6 °C	14.2 °C	12:28
Maximum Dew Point	15.4 °C	10.0 °C	19.4 °C	12:02
Mean Dew Point	12.7 °C	7.2 °C	16.5 °C
Night Minimum (21-09)	14.1 °C	9.1 °C	16.8 °C
Day Maximum (09-21)	22.5 °C	17.9 °C	28.7 °C
Max 10m Temp Rise	0.6 °C	0.3 °C	1.1 °C	13:18
Max 1hr Temp Rise	2.0 °C	0.7 °C	3.8 °C	12:39
Max 1hr Hum Rise	10%	4%	24%	17:53
Max 10m Temp Fall	0.7 °C	0.2 °C	1.3 °C	16:50
Max 1hr Temp Fall	1.8 °C	0.6 °C	3.3 °C	16:52
Max 1hr Hum Fall	10%	3%	23%	12:57
Max 10m Wind Speed	7.7 mph	3.3 mph	12.7 mph	15:36
Minimum Feels-like	15.9 °C	7.6 °C	20.5 °C	09:34
Maximum Feels-like	25.7 °C	19.3 °C	33.3 °C	15:29
Mean Feels-like	20.6 °C	14.3 °C	26.2 °C	n/a
Air-frost Hrs	0 hrs	0 hrs	0 hrs
Minimum PM2.5	0.0 µg/m³	0.0 µg/m³	0.0 µg/m³
Maximum PM2.5	n/a	n/a	n/a
Mean PM2.5	n/a	n/a	n/a
Temperature Range	8.5 °C (+0.1)	4.6 °C	14.6 °C
Humidity Range	39%	12%	62%
Pressure Range	4 hPa	2 hPa	13 hPa
Sun Hours	157 (85%) [38%]
Wet Hours	22 (58%) [3%]

NB: Hover over a value to see how many days of data it is from. Sun hrs, Wet hrs, Cloud cover and Events are based on manual observation and provided for interest only.

Written report

August 2009

August 2009: Near-average temperatures and near-normal rain

Mean 17.9°C, 0.4°C below normal. Highs averaged 22.5°C and lows 14.1°C. Warmest 28.7°C (19 Aug), coldest night 9.1°C (29 Aug).
Rain 42.1 mm, 78% of normal, over 5 days of 1 mm+. Wettest day: 34.3 mm on 06 Aug.
Sunshine 157.4 hours, 85% of normal.
Days that still hold the station record for their date: 02 Aug (11.4°C low min), 06 Aug (34.3 mm rain), 07 Aug (19.0°C low max), 19 Aug (10.5 h sun).

Written Mon 02 Nov, 18:03 GMT

‹ Jul 2009 Sep 2009 ›

Written reports for 2009: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec · the year

Days Of...
Rainfall		Temperature		Sunshine		Other
> 0.0 mm	10	Min < -5.0 °C	0	> 0 hrs	31	Falling Snow	0
> 0.1 mm	9	Min < 0.0 °C	0	> 1 hrs	28	Lying Snow	0
> 0.3 mm	7	Mean < 0.0 °C	0	> 3 hrs	24	Hail	0
> 1.0 mm	5	Mean > 20.0 °C	3	> 5 hrs	15	Thunder	0
> 5.0 mm	1	Max > 25.0 °C	5	> 10 hrs	1	Dense Fog	0
> 10.0 mm	1	Max > 30.0 °C	0	> 25% max poss.	24	Gusts > 30mph	0
> 20.0 mm	1	Min > 20.0 °C	0	> 95% max poss.	0	Total Events	0

Misc.

Mean rainfall for days with >0.3mm: 6.0 mm
Total snowfall: 0.0 mm

Graphs and Charts

Mean Temperature

Variable

Measure

View more charts for this month

Intraday conditions

Per-minute readings across the month (downsampled for display). Choose a variable below.

Wind rose

Daily breakdown

Day numbers link to the detailed daily report. Wide tables can be scrolled horizontally.

Temperature, rain, sunshine & wind

Day	Tmin	Tmax	Tmean	Rain	Hr max	10m rain	Rate	Sun	Wmean	Wmax	Gust	Wdir	W10m
1	15.1	20.2	17.6	0.3	0.3	0.3	-	0.3	4.7	-	19.0	-	3.3
2	11.4	21.0	16.2	0.0	-	-	-	8	4.7	11.4	17.5	270°	7.4
3	11.9	22.3	16.9	0.0	-	-	-	6	4.0	10.5	14.3	225°	6.7
4	16.3	20.9	18.5	0.1	-	-	-	0.1	4.5	10.5	17.2	180°	6.3
5	15.6	27.6	21.4	0.0	-	-	-	4	3.0	8.7	12.5	180°	6.7
6	16.8	26.2	19.4	34.3	9.9	4.7	66	4	2.6	9.0	12.1	315°	5.8
7	14.2	19.0	16.5	1.7	1.7	0.8	16	6	2.3	6.4	8.7	315°	4.3
8	11.6	24.0	17.6	0.0	-	-	-	8	1.8	5.8	8.7	45°	4.9
9	16.1	23.5	19.6	0.0	-	-	-	6	2.2	7.6	10.1	90°	4.8
10	15.1	20.8	17.7	0.0	-	-	-	2	4.3	12.7	19.2	225°	8.1
11	15.5	24.4	19.5	0.0	-	-	-	6	3.7	10.4	15.3	270°	6.6
12	15.6	20.7	18.4	1.1	-	-	5	0.5	4.2	11.5	16.1	270°	8.2
13	15.9	22.8	18.7	0.3	-	-	-	6	2.6	6.9	10.0	315°	5.0
14	13.9	22.1	18.2	0.0	-	-	-	2	4.0	10.4	14.8	225°	7.1
15	15.6	22.4	18.5	0.0	-	-	-	4	5.6	12.7	19.9	225°	9.1
16	15.1	24.2	18.6	0.0	-	-	-	8	4.9	11.5	16.6	270°	7.2
17	13.5	22.4	17.8	0.0	-	-	-	5	4.1	11.5	14.9	270°	8.1
18	14.0	23.7	18.4	0.0	-	-	-	5	3.5	9.2	13.6	225°	6.1
19	14.1	28.7	20.5	0.0	-	-	-	10	4.1	11.5	17.6	180°	7.5
20	15.7	21.9	18.9	0.0	-	-	-	4	5.4	16.5	24.4	225°	11.0
21	12.8	19.8	15.5	0.5	0.5	0.3	-	5	4.8	13.0	23.0	225°	9.8
22	11.2	21.7	16.2	0.0	-	-	-	7	3.1	9.7	12.5	225°	6.1
23	15.4	27.3	20.5	0.0	-	-	-	10	4.1	13.7	22.8	180°	11.0
24	14.2	23.6	18.5	0.0	-	-	-	4	2.9	10.9	16.1	225°	7.9
25	11.9	20.1	15.9	0.5	0.5	0.3	1.5	6	4.6	13.7	17.4	225°	9.1
26	14.3	22.1	17.0	1.1	0.3	0.3	0.3	3	5.9	13.7	23.0	180°	11.5
27	16.0	22.5	17.9	0.0	-	-	-	4	5.8	15.0	23.0	225°	10.3
28	11.6	19.2	15.1	2.2	1.9	1.4	16	7	7.6	18.4	27.6	180°	12.7
29	9.1	19.3	14.1	0.0	-	-	-	8	5.5	13.8	21.0	225°	10.9
30	10.1	17.9	14.5	0.0	-	-	-	2	4.8	11.5	17.5	225°	9.0
31	16.1	25.4	19.4	0.0	-	-	-	6	4.7	10.4	16.1	225°	7.5

Humidity, dew point & pressure

Day	Hmin	Hmax	Hmean	Dmin	Dmax	Dmean	Pmin	Pmax	Pmean
1	56	91	74	8.4	16.3	12.8	1006	1014	1010
2	43	94	71	6.6	13.7	10.3	1008	1015	1012
3	49	91	69	9.3	13.1	10.9	1014	1016	1015
4	69	90	83	11.1	17.3	15.4	1016	1018	1017
5	52	94	74	14.2	18.2	16.2	1017	1019	1018
6	63	97	84	14.2	19.4	16.5	1017	1020	1018
7	86	98	95	13.5	17.0	15.7	1018	1021	1020
8	44	98	78	10.8	16.2	13.1	1020	1022	1021
9	48	81	64	9.9	14.5	12.2	1017	1021	1019
10	58	92	74	9.7	16.4	12.9	1014	1018	1016
11	51	92	73	13.0	16.3	14.3	1016	1022	1019
12	71	92	86	13.7	17.8	16.0	1018	1021	1020
13	47	93	73	9.5	16.8	13.2	1017	1019	1018
14	62	95	77	11.5	16.0	14.0	1015	1019	1017
15	65	87	78	13.2	15.9	14.6	1013	1015	1014
16	45	95	74	11.3	15.5	13.4	1014	1016	1015
17	47	88	69	10.2	13.3	11.7	1015	1018	1016
18	50	85	68	11.0	14.4	12.2	1017	1020	1018
19	35	87	65	10.0	16.5	13.1	1014	1018	1016
20	45	90	70	8.6	16.8	12.9	1010	1018	1014
21	44	86	69	7.0	11.7	9.6	1018	1022	1020
22	50	90	70	8.2	13.1	10.3	1021	1024	1022
23	34	74	57	9.2	14.0	11.0	1010	1021	1016
24	50	85	69	9.7	14.7	12.4	1004	1010	1007
25	49	89	71	8.7	12.6	10.5	1007	1012	1010
26	51	95	81	11.3	16.7	13.7	1008	1012	1010
27	53	91	76	10.4	15.5	13.3	1010	1014	1012
28	48	84	70	7.2	13.6	9.5	1010	1016	1013
29	41	93	66	4.6	10.0	7.2	1017	1022	1020
30	63	91	77	6.1	14.8	10.3	1016	1020	1018
31	34	96	73	6.7	17.9	13.5	1003	1016	1010

Other measures

Day	Night	Daymax	T+10m	T+1h	H+1h	T-10m	T-1h	H-1h	Fmin	Fmax	Fmean	AQmin	AQmax	AQmean
1	15.5	20.2	0.4	1.1	9	0.5	2.0	6	-	-	-	-	-	-
2	11.4	21.0	0.9	2.6	11	0.5	1.7	12	12.8	22.1	17.6	-	-	-
3	11.9	22.3	0.6	2.2	7	0.4	1.2	9	13.0	24.6	18.7	-	-	-
4	16.3	20.9	0.3	0.7	5	0.2	0.6	3	18.6	26.4	22.8	-	-	-
5	15.6	27.6	0.7	2.8	7	0.4	1.5	11	19.1	33.3	26.2	-	-	-
6	16.8	26.2	0.6	2.4	15	0.9	3.2	8	20.5	32.9	24.4	-	-	-
7	15.0	19.0	0.3	1.0	4	0.4	1.6	3	17.3	24.3	21.0	-	-	-
8	11.6	24.0	-	-	-	-	-	-	13.5	28.1	20.5	-	-	-
9	16.1	23.5	0.4	1.6	6	0.4	1.4	9	18.6	26.0	21.9	-	-	-
10	15.1	20.8	0.6	2.1	8	0.7	1.3	10	16.4	23.4	20.5	-	-	-
11	15.5	24.4	-	-	-	-	-	-	18.6	28.2	23.0	-	-	-
12	15.6	20.7	0.4	1.8	8	0.4	1.0	6	18.8	26.2	23.1	-	-	-
13	15.9	22.8	1.0	1.3	10	1.2	1.5	13	18.7	25.1	21.7	-	-	-
14	13.9	22.1	1.1	1.4	8	1.3	1.9	8	16.4	26.5	21.6	-	-	-
15	15.6	22.4	-	-	-	-	-	-	18.6	26.8	22.2	-	-	-
16	15.1	24.2	0.5	2.2	9	0.9	2.2	10	18.2	26.9	21.7	-	-	-
17	13.5	22.4	1.0	1.7	9	1.1	2.1	11	15.3	24.3	19.9	-	-	-
18	14.0	23.7	-	-	-	-	-	-	15.3	26.7	20.7	-	-	-
19	14.1	28.7	-	-	-	-	-	-	16.3	32.7	23.3	-	-	-
20	15.7	21.9	0.5	2.3	10	0.4	1.2	12	16.9	26.3	21.7	-	-	-
21	12.8	19.8	1.1	3.8	16	1.2	2.7	23	14.3	20.5	16.7	-	-	-
22	11.2	21.7	0.5	2.0	8	0.4	1.9	12	12.1	24.3	17.6	-	-	-
23	15.1	27.3	0.5	1.9	7	0.5	2.1	12	16.7	29.6	22.3	-	-	-
24	14.2	23.6	0.9	2.2	11	0.5	1.8	10	16.1	27.0	21.0	-	-	-
25	11.9	20.1	0.6	2.3	24	1.2	3.3	12	13.1	21.6	17.4	-	-	-
26	14.3	22.1	0.5	1.9	20	0.7	3.0	14	16.5	24.3	20.3	-	-	-
27	16.0	22.5	-	-	-	-	-	-	18.0	25.9	20.9	-	-	-
28	12.4	19.2	-	-	-	-	-	-	12.2	19.8	16.2	-	-	-
29	9.1	19.3	-	-	-	-	-	-	7.6	19.3	14.3	-	-	-
30	10.1	17.9	0.5	1.9	7	0.3	0.9	8	10.2	20.1	16.1	-	-	-
31	16.1	25.4	0.6	2.5	7	0.7	2.2	15	17.8	28.4	22.7	-	-	-

View daily report for the 1st