Daily Min Temperature Anomalies (with respect to '91-'20 climate) observed on 21st Aug 2001 (252 reports).
Date (09Z D-1 to 09Z D)
-1 day
+1 day UK Climate:
51-80
61-90
71-00
81-10
91-20
Anomalies Percentiles
UK only UK Plus
View Min Temperature Map
View Min Temperature Table

Highest 10
Magherally (97 m, 24h min at 09Z D+1)+4.2 degC
Denver (3 m, 24h min at 09Z D+1)+3.6 degC
Ballywatticock (6 m, 24h min at 09Z D+1)+3.5 degC
Edenfel (89 m, 24h min at 09Z D+1)+3.4 degC
West Freugh (11 m, min of 09-21Z D/21Z-09Z D+1)+3.3 degC
Murlough (12 m, 24h min at 09Z D+1)+3.0 degC
Armagh (62 m, 24h min at 09Z D+1)+2.9 degC
Trassey Slievenaman (220 m, 24h min at 09Z D+1)+2.8 degC
Lough Navar Forest (126 m, 24h min at 09Z D+1)+2.8 degC
Porthmadog (7 m, 24h min at 09Z D+1)+2.7 degC

Lowest 10
Ibsley (27 m, 24h min at 09Z D+1)-4.6 degC
Hurn (10 m, min of 09-21Z D/21Z-09Z D+1)-4.6 degC
Thorney Island (4 m, min of 09-21Z D/21Z-09Z D+1)-4.3 degC
Wallingford (47 m, 24h min at 09Z D+1)-4.2 degC
Woburn (89 m, min of 09-21Z D/21Z-09Z D+1)-4.1 degC
Reading University, Whiteknights (66 m, 24h min at 09Z D+1)-4.0 degC
Velindre (152 m, 24h min at 09Z D+1)-3.7 degC
Benson (57 m, min of 09-21Z D/21Z-09Z D+1)-3.7 degC
Middle Wallop (90 m, min of 09-21Z D/21Z-09Z D+1)-3.5 degC
Wallington (150 m, 24h min at 09Z D+1)-3.5 degC

Average Anomaly = -0.3 degC

Data courtesy of MetOffice and OGIMET
OpenMIDAS Data - Met Office (2022): MIDAS Open: UK daily temperature data, v202207. NERC EDS Centre for Environmental Data Analysis.


UK temperature anomalies are plotted by default with respect to 1991-2020 daily climate, calculated for each individual UK site using official observation data. You can select a 30 year climate base period of your choice between 1951-1980 and 1991-2020 by selecting the appropriate radio button in the display. The daily climate is calculated by taking a 15-day rolling mean centred on the day in question, and can be visualised (with further info) here: Daily Climate.

Temperature percentiles are calculated using a 15-day climate centred on the relevant date, the climate itself using all available observations within that time window. Currently only available for UK sites.

Temperature anomalies for the Republic of Ireland are currently calculated using interpolated monthly means for the period 1981-2010, so in order to be consistent when comparing UK and ROI anomalies, select 81-10 as the climate using the radio buttons in the display window.

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