Daily Report for 10th February 2012

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	-5.1 °C (-8.0)	23:40	-2.6 °C (-5.6)	8.3 °C (+5.4), 2011	-5.1 °C (-8.0), 2012
Maximum Temperature	1.6 °C (-6.3)	13:53	1.9 °C (-6.0)	11.4 °C (+3.5), 2024	1.6 °C (-6.3), 2012
Mean Temperature	-0.7 °C (-7.2)		-0.2 °C (-5.8)	9.8 °C, 2024	-0.7 °C, 2012
Minimum Humidity	60%	15:48	63%	89%, 2013	55%, 2009
Maximum Humidity	90%	07:13	86%	98%, 2009	83%, 2016
Mean Humidity	79%		75%	95%, 2013	75%, 2016
Minimum Pressure	1037 hPa	19:21	1032 hPa	1037 hPa, 2012	977 hPa, 2009
Maximum Pressure	1039 hPa	06:50	1038 hPa	1039 hPa, 2012	986 hPa, 2024
Mean Pressure	1038 hPa		1035 hPa	1038 hPa, 2012	984 hPa, 2024
Mean Wind Speed	1.9 mph (-3.2)		4.0 mph (-1.1)	12.9 mph, 2020	1.9 mph, 2012
Maximum Wind Speed	9.4 mph		11.7 mph	28.0 mph, 2020	8.3 mph, 2024
Maximum Gust	10.9 mph	13:23	16.1 mph	46.1 mph, 2020	10.9 mph, 2012
Mean Wind Direction	n/a		E	WNW, 2022	N, 2010
Rainfall	1.0 mm		15.0 mm (97%)	12.9 mm, 2013	0.0 mm, 2015
Maximum Hourly Rain	n/a	12:13	0.0 mm	4.2 mm, 2020	0.2 mm, 2017
Maximum 10-min Rain	n/a	13:49	0.0 mm	2.0 mm, 2020	0.2 mm, 2017
Maximum Rain Rate	n/a	02:00	0 mm/h	30 mm/h, 2020	0.4 mm/h, 2025
Minimum Dew Point	-8.6 °C	20:39	-7.1 °C	7.0 °C, 2024	-8.6 °C, 2012
Maximum Dew Point	-0.8 °C	10:22	-1.7 °C	10.1 °C, 2011	-2.4 °C, 2021
Mean Dew Point	-4.1 °C		-4.3 °C	8.5 °C, 2011	-4.1 °C, 2012
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	-0.9 °C	05:10	-1.9 °C	8.4 °C, 2024	-1.8 °C, 2021
Day Maximum (09-21)	1.6 °C	13:52	1.9 °C	11.4 °C, 2024	1.6 °C, 2012
Max 10m Temp Rise	0.4 °C	12:55	0.4 °C	0.8 °C, 2023	0.1 °C, 2011
Max 1hr Temp Rise	0.8 °C	13:26	1.2 °C	2.4 °C, 2023	0.3 °C, 2017
Max 1hr Hum Rise	5%	21:04	5%	15%, 2010	2%, 2015
Max 10m Temp Fall	0.4 °C	19:57	0.3 °C	1.7 °C, 2020	0.1 °C, 2011
Max 1hr Temp Fall	1.7 °C	20:33	1.1 °C	3.6 °C, 2020	0.4 °C, 2011
Max 1hr Hum Fall	9%	12:20	8%	14%, 2014	2%, 2011
Max 10m Wind Speed	5.7 mph	13:16	8.1 mph	19.5 mph, 2020	5.6 mph, 2024
Minimum Feels-like	-8.4 °C	23:47	-7.0 °C	6.5 °C, 2024	-8.4 °C, 2012
Maximum Feels-like	1.6 °C	13:50	1.2 °C	12.4 °C, 2024	-0.1 °C, 2021
Mean Feels-like	-1.7 °C		-2.5 °C	9.7 °C, 2024	-4.1 °C, 2021
Air-frost Hrs	12 hrs		11 hrs	16 hrs, 2021	0 hrs, 2011
Minimum PM2.5	n/a		0.0 µg/m³	0.0 µg/m³, 2009	0.0 µg/m³, 2009
Maximum PM2.5	n/a		0.0 µg/m³	n/a	n/a
Mean PM2.5	n/a		0.0 µg/m³	n/a	n/a
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	6.7 °C (+1.7)		4.5 °C	10.6 °C, 2018	0.9 °C, 2017
Humidity Range	30%		23%	43%, 2009	9%, 2013
Pressure Range	2 hPa		6 hPa	36 hPa, 2009	2 hPa, 2012

Observation	Detail
Sun Hours	3 hrs [35%]
Wet Hours	2 hrs
Cloud Cover	am: Overcast or Mostly Cloudy pm: Partly Cloudy transitioned to Sunny
Events	Snowfall, Lying Snow, Air Frost
Comments	Lying snow to 4cm; -02 L Snw;
Observer Absent?	Yes - observations may be unreliable
Pond Temperature	0.0 °C

Notes: Detailed daily weather report for Hampstead, NW3, London on 10th February 2012. Times of extremes use the midpoint of the longest continuous period at that value. Cumulative anomalies are relative to the expected value for the month-to-date. Sun and wet hours are derived from webcam/rainfall analysis and may be adjusted. Data should be viewed with appropriate caution.

View monthly summary

Daily Report for 10th February 2012

Daily Graph of Conditions

Wind direction

Air pollution

Wind rose

Webcam Summary of Cloud Conditions