Daily Report for 6th June 2020

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	7.6 °C (-3.7)	05:27	10.5 °C (-0.7)	15.8 °C (+4.5), 2010	6.6 °C (-4.7), 2014
Maximum Temperature	13.3 °C (-6.8)	16:50	18.8 °C (-0.9)	23.3 °C (+3.2), 2016	13.3 °C (-6.8), 2020
Mean Temperature	10.5 °C (-5.2)		14.7 °C (-0.8)	18.7 °C, 2021	10.5 °C, 2020
Minimum Humidity	58%	09:06	46%	73%, 2022	32%, 2016
Maximum Humidity	92%	22:12	87%	96%, 2009	73%, 2015
Mean Humidity	75%		67%	86%, 2022	49%, 2015
Minimum Pressure	999 hPa	07:44	1007 hPa	1024 hPa, 2021	987 hPa, 2017
Maximum Pressure	1004 hPa	23:49	1012 hPa	1029 hPa, 2015	1004 hPa, 2020
Mean Pressure	1000 hPa		1009 hPa	1026 hPa, 2021	996 hPa, 2017
Mean Wind Speed	7.2 mph (+2.8)		4.7 mph (+0.3)	9.8 mph, 2017	0.9 mph, 2021
Maximum Wind Speed	18.4 mph	11:52	13.8 mph	21.8 mph, 2017	7.2 mph, 2021
Maximum Gust	31.1 mph	10:56	23.6 mph	37.7 mph, 2017	10.3 mph, 2021
Mean Wind Direction	n/a		SSE	NNW, 2011	NE, 2018
Rainfall	9.9 mm		10.2 mm (109%)	17.5 mm, 2017	0.0 mm, 2010
Maximum Hourly Rain	8.2 mm	18:15	1.4 mm	8.2 mm, 2020	0.2 mm, 2019
Maximum 10-min Rain	6.6 mm	17:50	1.1 mm	6.6 mm, 2020	0.2 mm, 2025
Maximum Rain Rate	102 mm/h	17:43	17 mm/h	102 mm/h, 2020	1.6 mm/h, 2026
Minimum Dew Point	3.5 °C	05:28	5.5 °C	11.3 °C, 2021	0.0 °C, 2015
Maximum Dew Point	9.8 °C	17:39	10.9 °C	15.9 °C, 2021	6.9 °C, 2015
Mean Dew Point	6.2 °C		8.2 °C	13.4 °C, 2021	3.5 °C, 2015
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	7.6 °C	05:29	10.6 °C	15.8 °C, 2010	6.6 °C, 2014
Day Maximum (09-21)	13.3 °C	17:06	18.8 °C	23.3 °C, 2016	13.3 °C, 2020
Max 10m Temp Rise	0.4 °C	06:02	0.6 °C	0.9 °C, 2014	0.4 °C, 2009
Max 1hr Temp Rise	1.6 °C	07:45	2.0 °C	3.5 °C, 2014	1.1 °C, 2023
Max 1hr Hum Rise	16%	18:43	11%	19%, 2017	3%, 2023
Max 10m Temp Fall	2.2 °C	17:51	0.9 °C	2.2 °C, 2020	0.2 °C, 2009
Max 1hr Temp Fall	3.7 °C	18:22	2.3 °C	3.7 °C, 2020	0.7 °C, 2009
Max 1hr Hum Fall	7%	07:45	14%	19%, 2017	4%, 2023
Max 10m Wind Speed	14.3 mph	12:00	9.7 mph	15.5 mph, 2017	4.6 mph, 2021
Minimum Feels-like	3.6 °C	05:31	10.2 °C	17.5 °C, 2010	3.6 °C, 2020
Maximum Feels-like	14.4 °C	17:39	19.9 °C	27.0 °C, 2021	14.4 °C, 2020
Mean Feels-like	9.9 °C		15.3 °C	21.8 °C, 2021	9.9 °C, 2020
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	5.7 °C (-3.1)		8.4 °C	16.2 °C, 2014	4.5 °C, 2026
Humidity Range	34%		40%	57%, 2016	13%, 2023
Pressure Range	5 hPa		6 hPa	18 hPa, 2017	2 hPa, 2023

Observation	Detail
Sun Hours	4 hrs [27%]
Wet Hours	3 hrs
Cloud Cover	am: Sunny transitioned to Overcast pm: Overcast transitioned to Mostly Cloudy
Events	Hail (small stones), Light Thunderstorm
Comments	eve T-storm w T rn and poss hail; 11-14 Rn spells
Observer Absent?	Yes - observations may be unreliable
Pond Temperature	5.0 °C

Notes: Detailed daily weather report for Hampstead, NW3, London on 6th June 2020. 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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