Records since 2009 (ties show the most recent year) · day max 09-21, night min 21-09 · normals 1991-2020; rain normal is the average total and the share of years with ≥0.2 mm on this date · more records
NW3 Weather is a meteorological observation site located near Hampstead, in North London, UK.
The site was established with an automatic personal weather station
in July 2010 and runs continuously, with updates at least every 60s.
This weather station has been recording data for
17 years and 279 days
Dull, dry start to November — sunshine and rain both well down
Through the 6th, mean temperature is about normal at 9.3°C, but days have been cool (mean max 10.8°C, −1.2°C on the 1991–2020 normal) while nights have run mild (mean min 7.5°C, +0.9°C). Every maximum so far has been below normal.
Only 1.6 mm of rain (12% of normal) — the third-driest 01–06 November since 2009. No day has reached 1 mm; the wettest was 0.8 mm on the 3rd.
Just 3.6 hours of sunshine (20% of normal), second-dullest such start since 2009, with four of the six days sunless.
Highest pressure for this date span since 2009 (mean 1030.8 hPa). Coolest night so far: 5.7°C on the 6th.
Warmest and sunniest year so far since records began in 2009
Through 06 November, mean temperature is 14.4°C (+2.1°C on the 1991–2020 normal) — the warmest such span since 2009, with mean max and min also ranking first. The year’s peak was 35.8°C (26 June and 13 August); the coldest night −4.0°C on 06 January.
Sunshine totals 1794.5 hours (122% of normal), also a station high for the date, ahead of 2025’s 1691 hours. Rain is near normal at 473.8 mm (94%).
A 51-day dry spell ran from 28 June to 17 August, and maxima sat above normal for 78 consecutive days from mid-June into late August.
Ten air frosts and two snowfall days so far; fog has been noted on at least six days (manual counts are lower bounds).
October 2026: sunniest October on station record, with a wet second half and record early warmth
153.6 hours of sunshine (130% of normal) beat 2018's 153.0 for the sunniest October since 2009. 04 Oct (9.3 h) and 17 Oct (7.6 h) set date records.
Mean 12.9°C, 1.2°C above normal and 7th-warmest of 18 station Octobers. Highs ran 1.8°C above. 04–06 Oct each set a date record, peaking at 22.5°C on the 5th, and 15 Oct set date records for both max (21.2°C) and min (13.9°C). The coldest night was only 6.0°C (21st), the mildest monthly minimum since 2009, with no air frost.
Rain 89.6 mm (138% of normal), 7th-wettest since 2009. A 9-day wet spell (16–24 Oct) ended with 23.8 mm on the 24th, a date record. 07 Oct (7.4 mm) also set one.
Fog was noted at 09 on the 30th. Gusts reached 42.6 mph on the 25th, the 2nd-highest October gust since 2009.
Mean pressure (1019.3 hPa) was the 2nd-highest for October on station record.
