Daily Report for 2nd October 2018

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.8 °C (+0.8) 04:46 9.0 °C (-1.0) 16.3 °C (+6.3), 2023 5.2 °C (-4.8), 2019
Maximum Temperature 19.9 °C (+3.2) 15:57 17.5 °C (+0.9) 26.6 °C (+9.9), 2011 13.2 °C (-3.5), 2019
Mean Temperature 15.5 °C (+2.0) 13.3 °C (-0.0) 19.4 °C, 2011 9.2 °C, 2019
Minimum Humidity 64% 16:58 55% 85%, 2020 36%, 2011
Maximum Humidity 85% 08:17 84% 98%, 2010 80%, 2009
Mean Humidity 74% 70% 93%, 2020 63%, 2011
Minimum Pressure 1018 hPa 05:47 1019 hPa 1026 hPa, 2014 985 hPa, 2021
Maximum Pressure 1023 hPa 00:02 1025 hPa 1029 hPa, 2014 993 hPa, 2020
Mean Pressure 1020 hPa 1022 hPa 1028 hPa, 2014 990 hPa, 2020
Mean Wind Speed 7.7 mph (+3.6) 6.2 mph (+2.1) 9.0 mph, 2017 1.8 mph, 2014
Maximum Wind Speed 17.3 mph 12:39 14.7 mph 17.4 mph, 2020 7.8 mph, 2014
Maximum Gust 26.2 mph 11:19 22.8 mph 30.0 mph, 2020 9.7 mph, 2014
Mean Wind Direction WNW
Rainfall 0.0 mm 0.0 mm (0%) 31.0 mm, 2020
Maximum Hourly Rain n/a 11.2, 2010
Maximum 10-min Rain n/a 2.7, 2023
Maximum Rain Rate n/a 30, 2010
Minimum Dew Point 5.7 °C 00:03 4.2 °C 15.0 °C, 2023 3.4 °C, 2019
Maximum Dew Point 13.8 °C 13:29 10.1 °C 17.4 °C, 2023 8.7 °C, 2019
Mean Dew Point 10.9 °C 7.8 °C 16.2 °C, 2023 5.5 °C, 2019
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.8 °C 04:46 9.0 °C 16.3 °C, 2023 6.2 °C, 2019
Day Maximum (09-21) 19.9 °C 15:57 17.5 °C 26.6 °C, 2011 12.7 °C, 2020
Max 10m Temp Rise 0.6 °C 10:11 0.6 °C 1.0 °C, 2011 0.2 °C, 2020
Max 1hr Temp Rise 2.5 °C 10:24 2.0 °C 5.0 °C, 2011 0.8 °C, 2020
Max 1hr Hum Rise 5% 01:05 5% 12%, 2011 4%, 2020
Max 10m Temp Fall 0.5 °C 12:41 0.5 °C 0.7 °C, 2022 0.3 °C, 2013
Max 1hr Temp Fall 1.0 °C 17:51 1.0 °C 2.8 °C, 2016 0.7 °C, 2023
Max 1hr Hum Fall 9% 11:02 9% 14%, 2019 4%, 2020
Max 10m Wind Speed 12.8 mph 12:41 10.9 mph 14.3 mph, 2017 5.6 mph, 2010
Minimum Feels-like 10.9 °C 01:55 7.7 °C 20.5 °C, 2023 2.5 °C, 2019
Maximum Feels-like 23.0 °C 14:42 19.1 °C 29.0 °C, 2011 13.2 °C, 2019
Mean Feels-like 17.4 °C 13.8 °C 22.4 °C, 2023 8.5 °C, 2019
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 9.1 °C (+2.4) 8.5 °C (+1.8) 14.8 °C (+8.1), 2011 3.2 °C (-3.5), 2023
Humidity Range 21% 29% 57%, 2011 11%, 2020
Pressure Range 5 hPa 6 hPa 28 hPa, 2021 3 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3 [29%]11 hrs (132%) [53%] 10.4 [100%], 2011 0 [0%], 2020
Wet Hours 00 hrs (0%) [0%] 20, 2020 0, 2009
Cloud Cover am: Mostly Cloudy
pm: Mostly Cloudy with periods of Partly Cloudy
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 2nd October 2018.
Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs are derived based on analysis of webcam observations, but may use data from our closest site, Heathrow, when needed.
Wet hrs are dervied algorithmically from rainfall data, though may be adjusted manually.
Rainfall totals may be manually adjusted after the fact to correct delayed or erroneous data.
Cloud cover and Events are manually reported, often with multi-week delays.
Data is generally reliable and accurate but should always be viewed with some quantity of salt to hand.
View monthly summary

Daily Graph of Conditions

day graph

Webcam Summary of Cloud Conditions

daycamsumFull resolution individual images at up-to 5 minute intervals

Wind rose