Daily Report for 23rd October 2022

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	13.1 °C (+5.1)	23:16	9.2 °C (+0.1)	13.1 °C (+5.1), 2022	4.1 °C (-3.9), 2019
Maximum Temperature	18.3 °C (+4.4)	15:03	17.1 °C (+1.7)	18.7 °C (+4.8), 2011	11.6 °C (-2.3), 2010
Mean Temperature	14.9 °C (+4.8)		13.4 °C (+0.9)	14.9 °C, 2022	9.2 °C, 2019
Minimum Humidity	83%	15:58	69%	98%, 2012	48%, 2011
Maximum Humidity	96%	12:17	95%	98%, 2009	85%, 2016
Mean Humidity	92%		84%	98%, 2012	72%, 2011
Minimum Pressure	996 hPa	23:43	1012 hPa	1029 hPa, 2018	976 hPa, 2025
Maximum Pressure	1011 hPa	00:05	1021 hPa	1037 hPa, 2018	1000 hPa, 2025
Mean Pressure	1002 hPa		1017 hPa	1032 hPa, 2024	987 hPa, 2025
Mean Wind Speed	3.2 mph (-0.9)		4.5 mph (+0.4)	7.9 mph, 2025	1.3 mph, 2019
Maximum Wind Speed	20.5 mph	17:23	13.6 mph	20.6 mph, 2013	7.1 mph, 2012
Maximum Gust	32.3 mph	17:25	21.7 mph	32.3 mph, 2022	10.0 mph, 2012
Mean Wind Direction	n/a		SW	N, 2025	NE, 2012
Rainfall	30.2 mm		63.5 mm (132%)	30.2 mm, 2022	0.0 mm, 2009
Maximum Hourly Rain	8.8 mm	23:59	1.4 mm	8.8 mm, 2022	1.2 mm, 2025
Maximum 10-min Rain	4.6 mm	17:30	0.7 mm	4.6 mm, 2022	0.6 mm, 2025
Maximum Rain Rate	96 mm/h	17:22	10 mm/h	96 mm/h, 2022	1.8 mm/h, 2025
Minimum Dew Point	11.6 °C	18:01	7.8 °C	11.6 °C, 2012	3.2 °C, 2019
Maximum Dew Point	16.0 °C	14:20	13.1 °C	16.0 °C, 2022	7.1 °C, 2016
Mean Dew Point	13.6 °C		10.7 °C	13.6 °C, 2022	5.5 °C, 2016
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	13.8 °C	02:45	10.2 °C	13.8 °C, 2022	4.1 °C, 2019
Day Maximum (09-21)	18.3 °C	15:04	17.1 °C	18.7 °C, 2011	11.6 °C, 2010
Max 10m Temp Rise	0.4 °C	14:20	0.6 °C	1.1 °C, 2009	0.2 °C, 2012
Max 1hr Temp Rise	1.0 °C	14:12	2.0 °C	3.2 °C, 2009	0.5 °C, 2012
Max 1hr Hum Rise	7%	18:29	8%	12%, 2009	0%, 2012
Max 10m Temp Fall	2.1 °C	17:33	0.5 °C	2.1 °C, 2022	0.1 °C, 2014
Max 1hr Temp Fall	4.2 °C	18:12	1.7 °C	4.2 °C, 2022	0.3 °C, 2017
Max 1hr Hum Fall	6%	14:37	10%	23%, 2009	0%, 2012
Max 10m Wind Speed	15.6 mph	17:31	10.1 mph	15.6 mph, 2022	4.5 mph, 2012
Minimum Feels-like	15.4 °C	18:47	9.5 °C	15.4 °C, 2022	1.4 °C, 2019
Maximum Feels-like	22.7 °C	14:57	19.5 °C	22.7 °C, 2022	12.0 °C, 2010
Mean Feels-like	18.1 °C		15.1 °C	18.1 °C, 2022	7.4 °C, 2025
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
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	5.2 °C (-0.7)		7.9 °C	10.0 °C, 2019	1.9 °C, 2012
Humidity Range	13%		26%	45%, 2011	0%, 2012
Pressure Range	15 hPa		9 hPa	24 hPa, 2025	2 hPa, 2012

Observation	Detail
Sun Hours	1.3 hrs [14%]
Wet Hours	8 hrs
Cloud Cover	am: Overcast pm: Partly Cloudy with periods of Mostly Cloudy
Events	Moderate Thunderstorm
Comments	"""""""""""""""Thunderstorms and showers"""""""""""""""
Observer Absent?	Yes - observations may be unreliable
Pond Temperature	13.0 °C

Notes: Detailed daily weather report for Hampstead, NW3, London on 23rd October 2022. 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.

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Daily Graph of Conditions

Wind direction

Air pollution

Wind rose

Webcam Summary of Cloud Conditions

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