Monthly Report for April 2009

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Weather Summary
Measure	Mean / Sum (anomaly)	Min	Max	Mean Time
Minimum Temperature	6.6 °C (+0.6)	2.7 °C	10.1 °C	08:30
Maximum Temperature	16.1 °C (+1.8)	9.9 °C	20.5 °C	15:13
Mean Temperature	10.8 °C (+1.2)	7.0 °C	13.5 °C
Minimum Humidity	54%	32%	94%	14:32
Maximum Humidity	90%	76%	97%	09:55
Mean Humidity	74%	56%	96%
Minimum Pressure	1010 hPa	994 hPa	1026 hPa	11:36
Maximum Pressure	1016 hPa	1004 hPa	1028 hPa	12:38
Mean Pressure	1013 hPa	999 hPa	1027 hPa
Mean Wind Speed	4.0 mph (-0.9)	1.7 mph	8.4 mph
Maximum Wind Speed	n/a	n/a	n/a	n/a
Maximum Gust	19.5 mph	11.0 mph	29.0 mph	n/a
Mean Wind Direction	n/a	n/a	n/a
Rainfall	33.1 mm (79%)	0.0 mm	7.7 mm
Maximum Hourly Rain	1.2 mm	0.3 mm	2.8 mm	12:33
Maximum 10-min Rain	0.7 mm	0.3 mm	1.4 mm	12:11
Maximum Rain Rate	11 mm/h	0.5 mm/h	33 mm/h	13:41
Minimum Dew Point	3.1 °C	-0.8 °C	8.3 °C	11:28
Maximum Dew Point	9.1 °C	5.0 °C	14.5 °C	11:56
Mean Dew Point	6.0 °C	2.5 °C	10.0 °C
Night Minimum (21-09)	6.8 °C	2.7 °C	10.9 °C	n/a
Day Maximum (09-21)	16.1 °C	9.9 °C	20.5 °C	n/a
Max 10m Temp Rise	0.8 °C	0.3 °C	1.5 °C	11:17
Max 1hr Temp Rise	2.4 °C	0.4 °C	3.6 °C	11:57
Max 1hr Hum Rise	7%	1%	14%	14:09
Max 10m Temp Fall	0.6 °C	0.2 °C	1.2 °C	14:21
Max 1hr Temp Fall	1.7 °C	0.5 °C	2.7 °C	18:44
Max 1hr Hum Fall	10%	1%	16%	12:46
Max 10m Wind Speed	n/a	n/a	n/a	n/a
Minimum Feels-like	0.0 °C	0.0 °C	0.0 °C	n/a
Maximum Feels-like	n/a	n/a	n/a	n/a
Mean Feels-like	n/a	n/a	n/a	n/a
Air-frost Hrs	0 hrs	0 hrs	0 hrs	n/a
Measure	Mean / Sum (anomaly)	Min	Max
Temperature Range	9.5 °C (+1.2)	1.7 °C	15.6 °C
Humidity Range	36%	3%	56%
Pressure Range	6 hPa	1 hPa	15 hPa
Measure	Sum (anom.) [% of max]	Min	Max
Sun Hours	181 (112%) [48%]	0	12.5
Wet Hours	41 (89%) [5.7%]	0	8

NB: Hover over a value to view the date it was recorded.
    Sun hrs, Wet hrs, Cloud cover and Events are based on manual equipment/observations (entered with a delay of 1-10 days). Consequently, their reliablity is questionable and they         are provided for interest only.

Days Of...
Rainfall		Temperature		Sunshine		Other
> 0.0 mm	15	Min < -5.0 °C	0	> 0 hrs	26	Falling Snow	0
> 0.1 mm	12	Min < 0.0 °C	0	> 1 hrs	24	Lying Snow	0
> 0.3 mm	11	Mean < 0.0 °C	0	> 3 hrs	22	Hail	0
> 1.0 mm	8	Mean > 20.0 °C	0	> 5 hrs	16	Thunder	1
> 5.0 mm	2	Max > 25.0 °C	0	> 10 hrs	5	Dense Fog	0
> 10.0 mm	0	Max > 30.0 °C	0	> 25% max poss.	22	Gusts > 30mph	0
> 20.0 mm	0	Ice Days	0	> 95% max poss.	1	Total Events	1

Misc.

Mean rainfall for days with >0.3mm: 3.0 mm
Total snowfall: 0 cm - 0% of the total precipitation
Total lying snow: 0 cm

Graphs and Charts

Minimum Temperature Maximum Temperature Mean Temperature Minimum Humidity Maximum Humidity Mean Humidity Minimum Pressure Maximum Pressure Mean Pressure Mean Wind Speed Maximum Wind Speed Maximum Gust Mean Wind Direction Rainfall Maximum Hourly Rain Maximum 10-min Rain Maximum Rain Rate Minimum Dew Point Maximum Dew Point Mean Dew Point Max 10m Temp Rise Max 1hr Temp Rise Max 1hr Hum Rise Max 10m Temp Fall Max 1hr Temp Fall Max 1hr Hum Fall Temperature Range Humidity Range Pressure Range Sun Hours Wet Hours Mean Rain Rate Falling Snow Lying Snow Hail Thunder Dense Fog Night Minimum (21-09) Day Maximum (09-21) Max 10-min Wind Speed Max Hourly Wind Speed

Wind rose

View daily breakdown for month