Daily Report for 3rd July 2020

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	12.5 °C (-0.9)	05:18	13.3 °C (-0.0)	18.6 °C (+5.2), 2009	10.7 °C (-2.7), 2026
Maximum Temperature	21.1 °C (-1.4)	13:36	20.9 °C (-1.5)	27.6 °C (+5.1), 2026	19.0 °C (-3.5), 2012
Mean Temperature	16.5 °C (-1.2)		16.7 °C (-0.8)	21.0 °C, 2014	15.5 °C, 2024
Minimum Humidity	57%	13:35	61%	75%, 2012	28%, 2014
Maximum Humidity	92%	03:02	90%	96%, 2012	66%, 2011
Mean Humidity	76%		78%	89%, 2012	46%, 2014
Minimum Pressure	1014 hPa	23:49	1010 hPa	1028 hPa, 2026	1003 hPa, 2013
Maximum Pressure	1018 hPa	05:26	1015 hPa	1031 hPa, 2026	1013 hPa, 2023
Mean Pressure	1017 hPa		1012 hPa	1030 hPa, 2026	1008 hPa, 2013
Mean Wind Speed	8.3 mph (+4.0)		6.7 mph (+2.4)	8.7 mph, 2023	2.2 mph, 2022
Maximum Wind Speed	23.5 mph	15:36	17.4 mph	23.5 mph, 2020	7.4 mph, 2011
Maximum Gust	31.1 mph	15:37	25.7 mph	34.6 mph, 2023	9.8 mph, 2011
Mean Wind Direction	n/a		WSW	N, 2025	ENE, 2019
Rainfall	0.8 mm		8.0 mm (180%)	2.8 mm, 2012	0.0 mm, 2009
Maximum Hourly Rain	0.5 mm	21:13	0.9 mm	1.2 mm, 2012	0.5 mm, 2020
Maximum 10-min Rain	0.3 mm	21:13	0.7 mm	1.0 mm, 2024	0.3 mm, 2020
Maximum Rain Rate	0.4 mm/h	20:36	8 mm/h	14 mm/h, 2024	0.4 mm/h, 2020
Minimum Dew Point	10.9 °C	06:13	10.9 °C	14.1 °C, 2012	4.3 °C, 2014
Maximum Dew Point	13.9 °C	00:01	14.8 °C	17.6 °C, 2009	9.5 °C, 2025
Mean Dew Point	12.1 °C		12.7 °C	15.1 °C, 2021	7.2 °C, 2025
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	12.5 °C	05:15	13.3 °C	18.6 °C, 2009	10.7 °C, 2026
Day Maximum (09-21)	21.1 °C	13:36	20.9 °C	27.6 °C, 2026	19.0 °C, 2012
Max 10m Temp Rise	0.8 °C	08:39	0.8 °C	0.9 °C, 2018	0.4 °C, 2012
Max 1hr Temp Rise	2.9 °C	09:17	2.4 °C	3.2 °C, 2025	1.1 °C, 2012
Max 1hr Hum Rise	15%	19:48	16%	18%, 2023	5%, 2009
Max 10m Temp Fall	0.7 °C	15:22	1.0 °C	1.0 °C, 2023	0.3 °C, 2012
Max 1hr Temp Fall	2.2 °C	20:10	2.6 °C	3.0 °C, 2023	0.9 °C, 2012
Max 1hr Hum Fall	14%	09:19	12%	14%, 2015	8%, 2012
Max 10m Wind Speed	14.7 mph	15:39	12.2 mph	15.8 mph, 2023	6.2 mph, 2011
Minimum Feels-like	14.2 °C	05:11	15.0 °C	19.7 °C, 2021	10.7 °C, 2026
Maximum Feels-like	23.6 °C	14:56	24.1 °C	29.5 °C, 2026	22.1 °C, 2016
Mean Feels-like	18.8 °C		19.4 °C	22.6 °C, 2021	17.6 °C, 2016
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	n/a		0.0 µg/m³	2.8 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	n/a		0.0 µg/m³	17.4 µg/m³, 2026	17.4 µg/m³, 2026
Mean PM2.5	n/a		0.0 µg/m³	9.0 µg/m³, 2026	9.0 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	8.6 °C (-0.5)		7.6 °C	16.9 °C, 2026	3.6 °C, 2012
Humidity Range	35%		28%	51%, 2009	20%, 2021
Pressure Range	4 hPa		5 hPa	13 hPa, 2013	2 hPa, 2011

Observation	Detail
Sun Hours	4 hrs [27%]
Wet Hours	2 hrs
Cloud Cover	am: Partly Cloudy pm: Mostly Cloudy
Events	None
Comments	late eve Rn
Observer Absent?	Yes - observations may be unreliable
Pond Temperature	5.0 °C

Notes: Detailed daily weather report for Hampstead, NW3, London on 3rd July 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.

View monthly summary

Daily Graph of Conditions

Wind direction

Air pollution

Wind rose

Webcam Summary of Cloud Conditions

Full resolution images at up-to 5 minute intervals