Monthly Report for December 2017

Weather Summary
Measure	Mean / Sum (anomaly)	Min	Max	Mean Time
Minimum Temperature	3.3 °C (-0.3)	-2.4 °C	9.8 °C	10:57
Maximum Temperature	8.0 °C (-0.2)	2.3 °C	13.7 °C	13:30
Mean Temperature	5.7 °C (-0.3)	0.9 °C	10.7 °C
Minimum Humidity	79%	69%	94%	15:18
Maximum Humidity	94%	83%	98%	11:59
Mean Humidity	88%	75%	96%
Minimum Pressure	1008 hPa	972 hPa	1035 hPa	11:30
Maximum Pressure	1019 hPa	993 hPa	1037 hPa	11:46
Mean Pressure	1013 hPa	982 hPa	1036 hPa
Mean Wind Speed	5.8 mph (+0.7)	2.5 mph	10.9 mph
Maximum Wind Speed	13.8 mph	7.1 mph	25.2 mph	12:07
Maximum Gust	22.4 mph	10.4 mph	43.8 mph	10:46
Mean Wind Direction	235° [SW]	n/a	333° [NNW]
Rainfall	97.3 mm (171%)	0.0 mm	20.5 mm
Maximum Hourly Rain	2.5 mm	0.4 mm	5.1 mm	13:19
Maximum 10-min Rain	1.0 mm	0.2 mm	3.3 mm	13:28
Maximum Rain Rate	12 mm/h	0.4 mm/h	40 mm/h	13:23
Minimum Dew Point	1.4 °C	-3.6 °C	8.3 °C	12:26
Maximum Dew Point	6.1 °C	-0.4 °C	11.4 °C	13:29
Mean Dew Point	3.8 °C	-1.6 °C	9.6 °C
Night Minimum (21-09)	3.7 °C	-2.4 °C	10.1 °C	09:57
Day Maximum (09-21)	7.6 °C	1.0 °C	13.7 °C	15:11
Max 10m Temp Rise	0.3 °C	0.2 °C	0.7 °C	09:19
Max 1hr Temp Rise	1.1 °C	0.4 °C	2.3 °C	10:28
Max 1hr Hum Rise	5%	1%	11%	14:28
Max 10m Temp Fall	0.4 °C	0.1 °C	1.8 °C	13:09
Max 1hr Temp Fall	1.2 °C	0.1 °C	3.6 °C	13:56
Max 1hr Hum Fall	6%	2%	12%	13:03
Max 10m Wind Speed	10.8 mph	5.0 mph	19.3 mph	11:04
Minimum Feels-like	-1.2 °C	-7.9 °C	7.3 °C	11:06
Maximum Feels-like	7.6 °C	-0.9 °C	14.7 °C	13:24
Mean Feels-like	3.4 °C	-3.5 °C	11.7 °C
Air-frost Hrs	30 hrs	0 hrs	11 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	4.7 °C (+0.1)	1.3 °C	10.2 °C
Humidity Range	15%	4%	25%
Pressure Range	11 hPa	1 hPa	32 hPa
Sun Hours	61 (94%) [28%]
Wet Hours	82 (132%) [11%]

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.

Days Of...
Rainfall		Temperature		Sunshine		Other
> 0.0 mm	16	Min < -5.0 °C	0	> 0 hrs	17	Falling Snow	2
> 0.1 mm	15	Min < 0.0 °C	6	> 1 hrs	12	Lying Snow	2
> 0.3 mm	15	Mean < 0.0 °C	0	> 3 hrs	11	Hail	0
> 1.0 mm	14	Mean > 20.0 °C	0	> 5 hrs	4	Thunder	0
> 5.0 mm	6	Max > 25.0 °C	0	> 10 hrs	0	Dense Fog	0
> 10.0 mm	4	Max > 30.0 °C	0	> 25% max poss.	11	Gusts > 30mph	5
> 20.0 mm	1	Ice Days	0	> 95% max poss.	2	Total Events	9

Misc.

Mean rainfall for days with >0.3mm: 6.5 mm
Total snowfall: 7.0 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	2.1	5.9	3.5	0.1	-	-	-	5	7.3	14.7	26.5	0°	11.5
2	2.6	6.3	4.5	0.0	-	-	-	0.3	3.2	9.1	13.8	282°	7.0
3	6.3	9.4	7.9	0.9	0.4	0.2	0.4	0	2.5	7.1	10.4	301°	5.0
4	3.6	9.4	7.2	0.0	-	-	-	0.2	2.7	7.9	11.5	289°	5.9
5	7.4	8.7	8.1	0.0	-	-	-	0	4.5	11.4	19.6	258°	8.9
6	8.3	10.8	9.4	0.0	-	-	-	0	7.3	17.7	28.8	220°	14.1
7	4.1	11.6	8.6	2.9	1.8	1.5	40	1	9.0	19.7	32.2	248°	14.9
8	0.4	4.1	2.5	0.0	-	-	-	4	7.5	15.8	28.8	281°	12.5
9	-0.9	3.2	1.1	0.0	-	-	-	6	5.1	12.0	17.3	254°	9.2
10	0.2	2.6	0.9	20.5	5.1	1.1	13	0	3.4	12.6	17.3	36°	9.1
11	-0.8	2.3	1.1	16.1	2.6	0.7	4.4	0	7.3	13.7	25.3	11°	11.6
12	-2.4	5.8	1.0	1.3	0.9	0.4	1.9	6	4.1	10.1	16.1	244°	7.7
13	3.4	8.7	6.0	10.1	3.5	1.8	26	0	7.1	18.5	33.4	238°	14.8
14	2.1	5.6	3.6	0.0	-	-	-	4	7.1	15.3	24.2	246°	11.8
15	1.9	4.9	3.3	1.3	1.3	0.7	7	5	5.8	13.2	20.7	313°	10.2
16	0.0	4.4	2.3	1.1	0.4	0.4	1.7	4	4.0	9.2	16.1	304°	7.1
17	-0.3	8.9	4.3	3.3	1.1	0.4	2.6	0	4.5	11.5	20.7	256°	9.1
18	1.0	7.6	3.9	0.0	-	-	-	7	2.8	11.1	19.6	333°	6.9
19	1.1	7.2	4.3	0.0	-	-	-	4	3.8	9.0	12.7	252°	6.9
20	7.2	10.5	9.0	0.0	-	-	-	0	3.3	8.6	11.5	251°	6.2
21	9.8	11.5	10.7	0.0	-	-	-	0	4.5	11.1	17.3	255°	9.1
22	9.6	11.9	10.4	0.0	-	-	-	2	3.0	11.1	16.1	266°	9.6
23	8.4	10.4	9.3	0.0	-	-	-	0	7.4	15.3	23.0	249°	13.1
24	8.1	10.2	9.2	0.0	-	-	-	0	8.3	16.0	26.5	234°	13.2
25	5.2	10.6	9.9	4.4	4.0	1.5	26	0	10.9	25.2	43.8	211°	19.3
26	3.3	7.8	5.6	10.6	3.7	0.9	7	5	6.4	13.5	20.7	203°	10.6
27	0.7	7.8	3.0	4.4	1.5	0.4	2.2	0	7.8	17.9	30.0	300°	16.3
28	-0.4	4.3	1.3	0.0	-	-	-	7	4.9	11.1	16.1	258°	9.1
29	-2.3	7.9	4.3	9.5	4.4	1.8	26	0.5	6.3	18.4	28.8	228°	13.6
30	5.4	13.7	10.7	4.4	1.8	0.4	3.3	0.5	9.1	19.5	32.3	235°	15.4
31	7.1	12.9	10.4	6.4	5.1	3.3	26	0	10.1	22.0	34.6	221°	16.0

Humidity, dew point & pressure

Day	Hmin	Hmax	Hmean	Dmin	Dmax	Dmean	Pmin	Pmax	Pmean
1	71	88	83	-0.3	2.2	0.9	1013	1026	1021
2	74	95	86	0.0	5.5	2.3	1026	1028	1027
3	87	96	93	5.3	8.3	6.8	1025	1030	1027
4	81	96	87	2.5	7.2	5.2	1030	1036	1033
5	74	84	80	3.7	5.8	4.8	1033	1036	1035
6	70	83	75	3.8	6.9	5.2	1018	1033	1027
7	72	96	84	0.5	11.0	6.0	1005	1018	1010
8	69	83	77	-2.4	0.7	-1.1	1012	1019	1015
9	76	87	82	-2.9	-0.4	-1.6	1004	1019	1015
10	74	96	92	-2.2	1.4	-0.2	972	1004	982
11	80	97	91	-3.4	1.3	-0.3	978	998	985
12	83	93	88	-3.6	4.8	-0.8	998	1010	1007
13	82	96	91	0.8	7.5	4.7	990	1005	996
14	78	92	85	0.4	2.5	1.3	988	993	991
15	81	94	88	-0.1	3.0	1.4	990	1011	998
16	75	94	88	-1.5	3.0	0.5	1011	1023	1018
17	83	97	95	-1.0	8.4	3.6	1019	1025	1022
18	81	97	88	0.1	5.1	2.1	1021	1034	1029
19	86	97	93	0.5	6.5	3.2	1034	1036	1035
20	94	98	96	6.5	9.7	8.4	1034	1036	1035
21	87	97	93	8.3	10.6	9.6	1035	1036	1035
22	84	96	91	8.2	10.1	8.9	1034	1037	1036
23	86	93	90	7.1	8.5	7.8	1030	1037	1033
24	82	94	89	7.0	8.3	7.5	1018	1030	1024
25	83	93	87	3.5	8.4	7.8	994	1018	1007
26	76	94	88	1.8	6.9	3.8	979	999	993
27	76	94	89	-1.7	6.9	1.3	977	1000	988
28	77	93	87	-1.6	0.9	-0.6	1000	1007	1003
29	73	97	86	-3.3	6.0	2.2	990	1007	998
30	72	97	83	2.4	10.0	7.9	989	1002	996
31	78	96	87	3.9	11.4	8.3	992	999	994

Other measures

Day	Night	Daymax	T+10m	T+1h	H+1h	T-10m	T-1h	H-1h	Fmin	Fmax	Fmean	AF hrs	AQmin	AQmax	AQmean
1	1.8	5.9	0.5	1.2	6	0.3	1.0	9	-4.5	4.3	-0.6	0	-	-	-
2	2.6	6.3	0.3	1.1	9	0.3	0.6	6	-1.6	5.8	2.7	0	-	-	-
3	5.7	9.4	0.2	0.6	2	0.2	0.5	3	3.4	9.9	6.9	0	-	-	-
4	3.6	9.4	0.5	2.0	4	0.3	1.2	5	0.9	9.4	6.0	0	-	-	-
5	7.4	8.4	0.2	0.4	4	0.2	0.3	5	4.0	8.1	6.1	0	-	-	-
6	8.3	10.8	0.2	0.7	9	0.2	0.6	3	4.4	10.8	7.4	0	-	-	-
7	9.0	11.6	0.2	0.6	4	1.8	3.5	9	-1.1	13.4	6.6	0	-	-	-
8	2.5	3.7	0.3	0.8	5	0.2	0.9	5	-5.7	1.7	-2.0	0	-	-	-
9	-0.9	3.2	0.4	1.4	4	0.3	1.0	5	-7.4	3.1	-2.6	7	-	-	-
10	0.2	1.0	0.7	1.8	11	0.4	1.4	12	-4.8	2.3	-1.5	0	-	-	-
11	0.2	2.3	0.4	1.1	3	0.3	0.8	5	-6.8	-0.9	-3.5	2	-	-	-
12	-2.4	4.4	0.4	1.4	5	0.2	0.5	4	-7.9	3.6	-2.2	11	-	-	-
13	4.4	8.7	0.2	0.8	5	0.5	2.0	7	-3.2	7.6	2.6	0	-	-	-
14	2.9	5.6	0.2	1.0	4	0.2	0.9	4	-3.4	4.0	-0.4	0	-	-	-
15	1.9	4.9	0.3	1.1	4	0.3	0.8	4	-3.3	3.7	-0.2	0	-	-	-
16	0.0	4.4	0.3	1.1	8	0.3	0.9	6	-4.8	4.2	-0.6	0	-	-	-
17	-0.3	8.8	0.3	1.3	4	0.3	1.1	12	-3.7	8.3	1.9	2	-	-	-
18	3.1	6.7	0.4	1.0	6	0.5	2.0	4	-1.6	6.7	2.4	0	-	-	-
19	1.0	7.2	0.3	1.4	4	0.3	0.6	4	-3.3	7.1	2.0	0	-	-	-
20	6.9	10.4	0.2	0.6	1	0.1	0.1	2	4.2	11.6	8.4	0	-	-	-
21	10.1	11.5	0.2	0.4	2	0.2	0.5	3	7.3	13.0	11.7	0	-	-	-
22	9.6	11.9	0.2	0.7	3	0.2	0.6	6	6.5	13.0	10.4	0	-	-	-
23	8.9	9.6	0.2	0.4	2	0.2	0.7	2	4.5	10.9	6.8	0	-	-	-
24	8.1	10.2	0.2	0.6	7	0.3	0.5	5	4.1	10.6	7.1	0	-	-	-
25	9.3	10.6	0.2	0.6	7	0.9	3.4	5	-0.1	11.2	8.6	0	-	-	-
26	3.3	7.3	0.3	1.3	9	0.3	0.6	4	-1.9	7.1	2.3	0	-	-	-
27	1.4	2.9	0.3	0.8	6	1.2	3.6	7	-6.3	7.1	-1.4	0	-	-	-
28	-0.4	4.3	0.3	1.3	4	0.3	0.8	5	-6.2	2.8	-2.2	4	-	-	-
29	-2.3	7.9	0.5	2.3	7	0.4	1.4	10	-3.3	5.6	1.5	4	-	-	-
30	4.7	13.7	0.5	1.8	9	0.3	0.9	9	1.4	14.7	10.4	0	-	-	-
31	5.6	11.1	0.3	1.4	6	0.6	2.0	6	1.9	14.7	9.8	0	-	-	-

View daily report for the 1st