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Daily Report for 12th July 2012

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MeasureValue (anomaly)TimeMonth cumul.Record HighRecord Low
Minimum Temperature10.2 °C (-4.0)05:2713.6 °C (-0.1)18.2 °C (+4.0), 20228.9 °C (-5.3), 2020
Maximum Temperature19.5 °C (-3.6)14:0219.5 °C (-3.2)30.5 °C (+7.4), 202218.6 °C (-4.5), 2024
Mean Temperature14.5 °C (-3.8)16.3 °C (-1.7)24.9 °C, 202214.5 °C, 2012
Minimum Humidity44%14:1560%69%, 202131%, 2026
Maximum Humidity94%06:0091%97%, 200974%, 2010
Mean Humidity76%78%88%, 202159%, 2010
Minimum Pressure1005 hPa23:271008 hPa1027 hPa, 20201005 hPa, 2012
Maximum Pressure1015 hPa09:121013 hPa1030 hPa, 20201010 hPa, 2009
Mean Pressure1010 hPa1010 hPa1029 hPa, 20201008 hPa, 2009
Mean Wind Speed5.3 mph (+1.0)4.8 mph (+0.5)7.8 mph, 20261.1 mph, 2021
Maximum Wind Speed13.7 mph15:5312.2 mph17.3 mph, 20236.9 mph, 2013
Maximum Gust19.4 mph15:5316.8 mph25.3 mph, 202610.9 mph, 2013
Mean Wind Directionn/aSSWNNW, 2014NNE, 2011
Rainfall11.9 mm64.0 mm (359%)42.0 mm, 20210.0 mm, 2011
Maximum Hourly Rain2.8 mm22:251.8 mm20.0 mm, 20211.1 mm, 2009
Maximum 10-min Rain1.4 mm01:421.1 mm6.0 mm, 20160.5 mm, 2024
Maximum Rain Rate15 mm/h01:3412 mm/h126 mm/h, 20162.4 mm/h, 2024
Minimum Dew Point6.5 °C15:5510.2 °C13.4 °C, 20226.5 °C, 2012
Maximum Dew Point13.0 °C23:5114.4 °C18.4 °C, 202211.7 °C, 2020
Mean Dew Point9.8 °C12.3 °C16.0 °C, 20229.3 °C, 2020
MeasureValueTimeMonth cumul.Record HighRecord Low
Night Minimum (21-09)10.2 °C05:2913.8 °C18.2 °C, 20228.9 °C, 2020
Day Maximum (09-21)19.5 °C14:0419.5 °C30.5 °C, 202218.6 °C, 2024
Max 10m Temp Rise0.7 °C12:260.7 °C1.0 °C, 20140.4 °C, 2011
Max 1hr Temp Rise2.3 °C07:272.0 °C4.2 °C, 20221.7 °C, 2016
Max 1hr Hum Rise21%16:5510%21%, 20126%, 2024
Max 10m Temp Fall0.8 °C16:400.6 °C0.9 °C, 20160.4 °C, 2010
Max 1hr Temp Fall3.1 °C17:191.7 °C3.3 °C, 20201.3 °C, 2023
Max 1hr Hum Fall14%10:3311%15%, 20147%, 2016
Max 10m Wind Speed11.8 mph15:5610.3 mph12.5 mph, 20235.0 mph, 2021
Minimum Feels-like11.1 °C05:1015.6 °C21.4 °C, 20229.0 °C, 2020
Maximum Feels-like19.7 °C13:5622.3 °C36.2 °C, 202219.7 °C, 2012
Mean Feels-like15.7 °C18.8 °C29.6 °C, 202215.7 °C, 2012
Air-frost Hrs0 hrs0 hrs0 hrs, 20090 hrs, 2009
Minimum PM2.5n/a0.0 µg/m32.5 µg/m3, 20260.0 µg/m3, 2009
Maximum PM2.5n/a0.0 µg/m313.6 µg/m3, 202613.6 µg/m3, 2026
Mean PM2.5n/a0.0 µg/m37.4 µg/m3, 20267.4 µg/m3, 2026
MeasureValue (anomaly)Month cumul.Record HighRecord Low
Temperature Range9.3 °C (+0.4)6.0 °C15.7 °C, 20204.5 °C, 2011
Humidity Range50%31%59%, 202021%, 2011
Pressure Range10 hPa5 hPa17 hPa, 20172 hPa, 2024
ObservationDetail
Sun Hours8 hrs [54%]
Wet Hours8 hrs
Cloud Coveram: Sunny transitioned to Mostly Sunny
pm: Partly Cloudy transitioned to Overcast
EventsNone
Comments0130 H Sh; 1630- L Rn
Observer Absent?No
Pond Temperature0.0 °C
Notes
Detailed daily weather report for Hampstead, NW3, London on 12th July 2012. 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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