Daily Report for 6th July 2019

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	14.6 °C (+1.0)	05:44	13.0 °C (-0.4)	18.1 °C (+4.5), 2017	10.5 °C (-3.1), 2016
Maximum Temperature	22.9 °C (+0.2)	11:14	23.9 °C (+1.4)	32.4 °C (+9.7), 2026	16.4 °C (-6.3), 2024
Mean Temperature	19.4 °C (+0.6)		18.9 °C (+0.5)	25.5 °C, 2026	13.9 °C, 2024
Minimum Humidity	50%	00:36	44%	68%, 2021	21%, 2026
Maximum Humidity	89%	23:46	85%	97%, 2024	68%, 2010
Mean Humidity	70%		63%	86%, 2021	47%, 2026
Minimum Pressure	1014 hPa	17:15	1020 hPa	1028 hPa, 2013	994 hPa, 2021
Maximum Pressure	1016 hPa	00:00	1025 hPa	1031 hPa, 2013	1007 hPa, 2011
Mean Pressure	1015 hPa		1022 hPa	1029 hPa, 2013	1001 hPa, 2021
Mean Wind Speed	2.3 mph (-2.0)		3.1 mph (-1.2)	8.3 mph, 2011	1.7 mph, 2018
Maximum Wind Speed	7.8 mph	11:48	9.8 mph	19.4 mph, 2011	7.4 mph, 2013
Maximum Gust	11.6 mph	18:00	15.0 mph	30.0 mph, 2026	11.6 mph, 2019
Mean Wind Direction	n/a		SW	NNW, 2019	N, 2018
Rainfall	1.1 mm		1.1 mm (12%)	24.2 mm, 2024	0.0 mm, 2010
Maximum Hourly Rain	0.9 mm	22:56	0.1 mm	10.8 mm, 2024	0.5 mm, 2014
Maximum 10-min Rain	0.4 mm	22:56	0.1 mm	6.5 mm, 2024	0.3 mm, 2011
Maximum Rain Rate	2.6 mm/h	22:56	0.4 mm/h	72 mm/h, 2024	1.0 mm/h, 2011
Minimum Dew Point	9.2 °C	01:25	9.1 °C	11.8 °C, 2018	5.0 °C, 2010
Maximum Dew Point	15.8 °C	17:15	13.3 °C	17.4 °C, 2025	9.3 °C, 2010
Mean Dew Point	13.7 °C		11.4 °C	14.6 °C, 2018	7.3 °C, 2016
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	14.6 °C	05:42	13.0 °C	18.1 °C, 2017	10.5 °C, 2016
Day Maximum (09-21)	22.9 °C	11:00	23.9 °C	32.4 °C, 2026	16.4 °C, 2024
Max 10m Temp Rise	0.7 °C	06:10	0.7 °C	0.8 °C, 2009	0.5 °C, 2010
Max 1hr Temp Rise	2.5 °C	07:00	2.3 °C	3.1 °C, 2013	1.6 °C, 2025
Max 1hr Hum Rise	12%	02:37	9%	20%, 2018	5%, 2010
Max 10m Temp Fall	0.4 °C	03:18	0.5 °C	1.2 °C, 2009	0.4 °C, 2010
Max 1hr Temp Fall	1.5 °C	03:42	1.9 °C	3.2 °C, 2017	1.3 °C, 2010
Max 1hr Hum Fall	8%	07:07	11%	15%, 2021	7%, 2022
Max 10m Wind Speed	5.0 mph	00:40	6.7 mph	13.5 mph, 2026	5.0 mph, 2019
Minimum Feels-like	16.6 °C	05:37	14.3 °C	21.1 °C, 2026	10.5 °C, 2016
Maximum Feels-like	27.2 °C	11:17	26.5 °C	36.3 °C, 2017	20.6 °C, 2024
Mean Feels-like	22.7 °C		20.9 °C	27.9 °C, 2026	15.9 °C, 2024
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	n/a		0.0 µg/m³	0.4 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	n/a		0.0 µg/m³	10.4 µg/m³, 2026	10.4 µg/m³, 2026
Mean PM2.5	n/a		0.0 µg/m³	2.5 µg/m³, 2026	2.5 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	8.3 °C (-0.8)		10.9 °C	15.3 °C, 2013	4.9 °C, 2021
Humidity Range	39%		41%	57%, 2018	19%, 2022
Pressure Range	2 hPa		4 hPa	14 hPa, 2021	2 hPa, 2023

Observation	Detail
Sun Hours	5 hrs [33%]
Wet Hours	2 hrs
Cloud Cover	am: Sunny transitioned to Overcast pm: Overcast
Events	None
Comments	late Rn
Observer Absent?	Yes - observations may be unreliable
Pond Temperature	22.0 °C

Notes: Detailed daily weather report for Hampstead, NW3, London on 6th July 2019. 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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