Monthly Report for May 2017

Weather Summary
Measure	Mean / Sum (anomaly)	Min	Max	Mean Time
Minimum Temperature	10.4 °C (+1.4)	5.1 °C	15.7 °C	07:37
Maximum Temperature	19.3 °C (+1.5)	11.0 °C	26.7 °C	15:16
Mean Temperature	14.7 °C (+1.4)	9.1 °C	20.5 °C
Minimum Humidity	53%	35%	78%	15:15
Maximum Humidity	83%	74%	89%	07:25
Mean Humidity	69%	56%	86%
Minimum Pressure	1013 hPa	993 hPa	1025 hPa	07:51
Maximum Pressure	1021 hPa	1001 hPa	1029 hPa	14:11
Mean Pressure	1017 hPa	995 hPa	1027 hPa
Mean Wind Speed	4.0 mph (-0.7)	1.2 mph	7.2 mph
Maximum Wind Speed	11.0 mph	7.0 mph	16.9 mph	12:18
Maximum Gust	16.9 mph	10.5 mph	24.1 mph	12:00
Mean Wind Direction	168° [SSE]	23° [NNE]	345° [NNW]
Rainfall	81.0 mm (176%)	0.0 mm	30.7 mm
Maximum Hourly Rain	2.5 mm	0.5 mm	8.0 mm	13:26
Maximum 10-min Rain	1.2 mm	0.3 mm	4.0 mm	12:33
Maximum Rain Rate	23 mm/h	0.7 mm/h	100 mm/h	13:32
Minimum Dew Point	6.2 °C	0.4 °C	11.9 °C	11:45
Maximum Dew Point	11.1 °C	4.3 °C	16.9 °C	13:18
Mean Dew Point	8.7 °C	2.6 °C	14.6 °C
Night Minimum (21-09)	10.7 °C	5.1 °C	16.0 °C	04:48
Day Maximum (09-21)	19.3 °C	11.0 °C	26.7 °C	15:16
Max 10m Temp Rise	0.6 °C	0.3 °C	0.9 °C	10:58
Max 1hr Temp Rise	2.2 °C	1.0 °C	3.4 °C	10:41
Max 1hr Hum Rise	9%	3%	21%	19:04
Max 10m Temp Fall	0.5 °C	0.2 °C	1.3 °C	15:44
Max 1hr Temp Fall	1.7 °C	0.8 °C	3.7 °C	16:37
Max 1hr Hum Fall	10%	4%	16%	10:54
Max 10m Wind Speed	8.4 mph	4.6 mph	13.5 mph	13:22
Minimum Feels-like	9.9 °C	3.1 °C	18.4 °C	07:34
Maximum Feels-like	20.8 °C	11.0 °C	29.8 °C	14:55
Mean Feels-like	15.6 °C	7.1 °C	22.8 °C
Air-frost Hrs	0 hrs	0 hrs	0 hrs
Minimum PM2.5	0.0 µg/m³	0.0 µg/m³	0.0 µg/m³	n/a
Maximum PM2.5	n/a	n/a	n/a
Mean PM2.5	n/a	n/a	n/a
Temperature Range	8.8 °C (+0.0)	3.9 °C	14.5 °C
Humidity Range	30%	11%	48%
Pressure Range	7 hPa	3 hPa	16 hPa
Sun Hours	158 (84%) [36%]
Wet Hours	44 (110%) [5.9%]

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

May 2017

May 2017: Wettest May in 18 years of station data, also notably dull

Mean 14.7°C, 1.3°C above normal. Average max 19.3°C and lows 10.4°C. Warmest 26.7°C (26 May), coldest night 5.1°C (10 May). 5 days reaching 25°C.
Rain 81.0 mm, 176% of normal, the wettest May in 18 years of station data, over 12 days of 1 mm+. The biggest fall was 30.7 mm on 17 May. Sunshine 158.2 hours, 84% of normal, 4th-dullest of 18 station Mays.
Days that still hold the station record for their date: 16 May (24.4°C max), 17 May (12.2°C min), 18 May (15.0 mm rain), 25 May (14.3 h sun).

Written Mon 02 Nov, 18:03 GMT

‹ Apr 2017 Jun 2017 ›

Written reports for 2017: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec · the year

Days Of...
Rainfall		Temperature		Sunshine		Other
> 0.0 mm	12	Min < -5.0 °C	0	> 0 hrs	26	Falling Snow	0
> 0.1 mm	12	Min < 0.0 °C	0	> 1 hrs	25	Lying Snow	0
> 0.3 mm	12	Mean < 0.0 °C	0	> 3 hrs	19	Hail	0
> 1.0 mm	10	Mean > 20.0 °C	3	> 5 hrs	14	Thunder	0
> 5.0 mm	3	Max > 25.0 °C	5	> 10 hrs	4	Dense Fog	0
> 10.0 mm	3	Max > 30.0 °C	0	> 25% max poss.	16	Gusts > 30mph	0
> 20.0 mm	1	Min > 20.0 °C	0	> 95% max poss.	2	Total Events	0

Misc.

Mean rainfall for days with >0.3mm: 6.8 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	8.8	12.7	10.8	4.9	2.1	1.0	10	2	3.3	10.3	17.8	128°	7.3
2	6.7	17.3	11.7	0.0	-	-	-	6	3.7	10.6	16.8	47°	8.4
3	6.9	11.0	9.1	2.5	2.5	1.7	36	0	6.5	12.9	19.9	32°	9.4
4	9.2	13.3	10.8	0.0	-	-	-	0	6.3	11.7	19.9	41°	9.9
5	8.0	15.2	11.2	0.0	-	-	-	7	6.5	14.6	23.1	73°	10.9
6	9.2	15.6	11.9	0.0	-	-	-	2	4.8	10.6	14.7	49°	7.6
7	7.9	17.5	11.7	0.0	-	-	-	6	3.7	10.8	16.8	23°	8.0
8	6.9	12.0	9.4	0.0	-	-	-	0	5.4	12.3	22.0	23°	9.1
9	6.3	14.0	9.9	0.0	-	-	-	3	2.8	8.3	12.6	34°	7.2
10	5.1	17.6	11.6	0.0	-	-	-	13	2.1	8.2	11.5	122°	5.9
11	6.6	21.1	14.1	1.0	1.0	0.4	2.0	3	2.5	9.9	14.7	118°	7.0
12	12.6	18.8	15.1	1.4	0.6	0.4	0.7	2	4.7	13.8	21.0	207°	11.2
13	12.3	18.0	14.6	0.0	-	-	-	3	6.2	13.8	19.9	223°	10.7
14	10.4	19.8	14.9	1.8	1.4	0.7	20	7	4.9	12.1	18.9	247°	8.7
15	8.5	18.1	14.2	1.1	0.7	0.4	1.0	0	6.2	14.7	24.1	211°	12.5
16	15.7	24.4	19.2	0.0	-	-	-	4	7.2	16.9	24.1	224°	12.3
17	12.2	18.6	15.9	30.7	6.9	2.0	20	0	2.0	9.5	13.6	242°	6.9
18	10.0	17.5	12.7	15.0	2.3	0.8	18	5	1.7	7.1	10.5	309°	5.1
19	9.7	15.7	11.7	1.0	0.5	0.3	18	2	3.2	7.7	11.5	298°	6.0
20	8.0	16.5	12.7	1.5	1.0	0.8	18	7	5.1	15.2	24.1	240°	11.2
21	9.6	20.7	15.3	0.0	-	-	-	10	4.5	10.6	15.7	204°	7.7
22	10.8	25.2	18.4	0.0	-	-	-	10	4.0	11.4	17.8	191°	8.7
23	12.5	21.7	17.8	0.0	-	-	-	6	3.4	9.6	13.6	286°	7.4
24	12.8	26.4	20.2	0.0	-	-	-	12	1.2	7.7	10.5	345°	5.1
25	13.3	25.9	20.1	0.0	-	-	-	14	2.2	8.6	13.6	127°	6.7
26	12.8	26.7	20.5	0.0	-	-	-	15	4.0	11.3	17.8	125°	8.4
27	15.1	24.9	19.6	0.0	-	-	-	8	5.5	15.7	24.1	196°	13.5
28	13.1	25.3	18.3	4.1	3.3	2.5	30	6	1.7	7.0	10.5	208°	4.6
29	14.0	22.0	17.9	16.0	8.0	4.0	100	0.1	2.0	8.5	11.5	167°	7.4
30	15.0	20.6	17.9	0.0	-	-	-	2	4.6	13.8	22.0	268°	10.2
31	13.3	22.9	18.1	0.0	-	-	-	1	1.5	7.3	10.5	203°	5.2

Humidity, dew point & pressure

Day	Hmin	Hmax	Hmean	Dmin	Dmax	Dmean	Pmin	Pmax	Pmean
1	64	81	74	4.5	8.8	6.2	998	1014	1004
2	49	86	70	4.0	9.2	6.1	1014	1023	1019
3	70	86	80	3.7	7.3	5.7	1021	1024	1023
4	62	87	75	4.6	8.2	6.5	1022	1025	1023
5	42	79	64	1.7	6.1	4.3	1016	1025	1021
6	59	81	71	5.6	8.1	6.7	1012	1016	1014
7	51	81	68	4.3	7.8	5.8	1017	1025	1021
8	62	74	66	0.8	5.4	3.4	1025	1029	1027
9	50	74	61	1.1	4.3	2.6	1015	1029	1022
10	47	78	60	0.4	6.5	3.9	1001	1015	1008
11	43	82	62	3.0	9.4	6.5	993	1001	995
12	59	86	75	8.0	12.8	10.5	993	1002	996
13	42	83	65	3.8	10.8	7.7	1002	1012	1007
14	41	81	64	5.8	9.8	7.7	1011	1025	1018
15	65	85	78	5.1	13.2	10.2	1024	1028	1025
16	49	86	71	11.9	15.9	13.5	1023	1026	1024
17	78	89	86	10.1	16.2	13.6	1013	1024	1019
18	53	87	76	7.1	10.5	8.4	1011	1017	1014
19	58	87	77	6.0	9.2	7.6	1011	1015	1012
20	53	83	68	4.7	9.0	6.6	1014	1024	1018
21	42	83	62	5.8	9.6	7.6	1020	1027	1024
22	35	83	56	7.0	11.1	8.7	1012	1020	1016
23	56	75	66	8.1	14.3	11.3	1014	1025	1022
24	45	84	63	9.8	14.1	12.6	1024	1027	1026
25	45	85	61	7.0	15.7	12.0	1022	1027	1024
26	43	79	58	7.8	14.1	11.5	1015	1023	1019
27	53	79	64	10.1	16.1	12.4	1012	1017	1015
28	41	82	68	10.0	14.0	12.0	1015	1019	1017
29	71	88	81	11.5	16.9	14.6	1011	1015	1012
30	53	85	70	10.2	15.1	12.2	1012	1020	1015
31	54	83	68	10.1	13.7	11.9	1021	1024	1022

Other measures

Day	Night	Daymax	T+10m	T+1h	H+1h	T-10m	T-1h	H-1h	Fmin	Fmax	Fmean	AQmin	AQmax	AQmean
1	9.5	12.7	0.6	1.3	12	0.5	1.0	9	6.7	13.0	10.7	-	-	-
2	6.7	17.3	0.6	2.6	7	0.4	1.3	14	4.7	17.3	11.5	-	-	-
3	6.9	11.0	0.7	1.3	6	0.2	0.8	7	3.2	11.0	7.1	-	-	-
4	9.2	13.3	0.4	1.0	6	0.3	1.0	13	5.9	13.3	10.0	-	-	-
5	8.0	15.2	0.5	2.2	16	0.6	1.5	13	4.9	15.2	10.3	-	-	-
6	9.2	15.6	0.5	1.4	5	0.3	1.2	7	6.3	16.0	11.3	-	-	-
7	7.9	17.5	0.9	2.7	9	0.5	2.1	9	6.1	17.8	11.3	-	-	-
8	7.4	12.0	0.3	1.0	3	0.3	1.1	5	3.4	12.0	7.9	-	-	-
9	6.3	14.0	0.6	1.9	9	0.4	1.2	6	3.1	14.0	9.1	-	-	-
10	5.1	17.6	0.5	1.7	7	0.5	2.1	7	5.1	17.6	11.5	-	-	-
11	6.6	21.1	0.8	3.1	14	0.4	1.9	16	5.4	21.8	14.2	-	-	-
12	12.6	18.8	0.7	1.4	6	0.4	1.5	10	13.4	20.9	16.6	-	-	-
13	12.3	18.0	0.6	1.7	9	0.7	1.7	13	12.9	18.0	15.2	-	-	-
14	12.2	19.8	0.6	2.2	21	1.3	3.7	11	10.4	19.9	15.3	-	-	-
15	8.5	18.1	0.5	1.7	13	0.5	1.6	8	7.5	20.4	15.7	-	-	-
16	15.7	24.4	0.7	2.9	9	0.4	1.2	14	18.4	27.5	22.3	-	-	-
17	16.0	18.6	0.5	1.6	4	0.6	2.2	4	13.5	23.3	19.0	-	-	-
18	10.1	17.5	0.6	2.2	12	0.5	2.1	11	10.2	18.6	13.3	-	-	-
19	9.7	15.7	0.6	1.9	10	0.7	2.3	10	7.5	16.3	11.7	-	-	-
20	8.0	16.5	0.7	3.0	10	0.9	1.8	14	5.8	16.6	12.6	-	-	-
21	9.6	20.7	0.7	2.6	11	0.4	1.7	14	7.4	21.3	15.5	-	-	-
22	10.8	25.2	0.8	3.4	6	0.5	1.8	15	11.0	26.3	19.1	-	-	-
23	12.5	21.7	0.6	2.4	8	0.5	1.4	6	13.0	25.1	19.7	-	-	-
24	12.8	26.4	0.6	3.2	9	0.6	2.9	12	14.0	29.6	22.8	-	-	-
25	13.3	25.9	0.7	3.2	7	0.5	1.8	12	14.7	29.1	22.5	-	-	-
26	12.8	26.7	0.7	3.1	7	0.4	1.8	12	13.5	29.8	22.6	-	-	-
27	15.1	24.9	0.7	3.0	6	1.1	2.7	10	16.9	29.6	22.1	-	-	-
28	13.1	25.3	0.6	2.4	15	0.6	2.5	9	14.4	27.7	20.6	-	-	-
29	14.0	22.0	0.6	2.4	8	0.7	1.9	7	16.1	27.1	21.6	-	-	-
30	15.0	20.6	0.6	1.6	5	0.4	1.0	8	17.2	22.6	20.3	-	-	-
31	13.3	22.9	0.6	2.2	6	0.3	1.3	13	14.6	25.9	20.3	-	-	-

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