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to cold conditions have been experienced. Outlook: For many central and northern parts of Africa, conditions are likely to be warmer than normal for the next three months. Elsewhere, climatological odds are most likely. 3-Month Outlook May to July - Temperature Much More Likely Below Normal Near

covered and regularity of observations and also in the period covered; some may cover several decades whilst others are only for a few months. Example of a private weather diary Most useful for The diaries are useful for research covering periods before 1854 or shortly after whilst the official

May 2018 The averaging period used for the following assessment was 1981-2010. At the start of May, the UK was in an unsettled westerly regime, but a er a frontal system had brought rain south-eastwards on the 1st and 2nd it soon turned much warmer and, for most places, sunnier, giving the warmest

and may experience strong winds associated with the passage of deep lows. The frequency and strength of these depressions is greatest in the winter half of the year, with the strongest winds coming in off the Irish Sea from the SW to WNW. HOW HAS THE CITY'S CLIMATE CHANGED? Temperature Difference

this is localised to upland areas which are exposed to westerly maritime air masses. Areas in the lee of these uplands receive significantly less rainfall, including the large urban areas of Manchester, which receive around 800 mm per year. North West England is one of the more exposed parts of the UK and may

(9.5 to 9.9 °C) compared to cooler inland areas (8.0 °C and 9.4°C). July and August are the warmest months in the region with mean daily maxima reaching up to 19 °C in southern Dumfries and Galloway and the Clyde valley. These may be compared with 23.5 °C in the London area. Instances of extreme high

are the warmest months in the region with mean daily maxima reaching up to 19 °C in southern Dumfries and Galloway and the Clyde valley. These may be compared with 23.5 °C in the London area. Instances of extreme high temperatures are rare. Average annual rainfall totals range from less than 1000 mm

. Inland valleys experience the coldest winter night temperatures, such as Rhyader (Powys) which experienced -23.3°C in January 1940. Rainfall in Wales varies widely, with Snowdonia receiving average annual totals exceeding 3000 mm in comparison to places along the coast which may receive less than

this is localised to upland areas which are exposed to westerly maritime air masses. Areas in the lee of these uplands receive significantly less rainfall, including the large urban areas of Manchester, which receive around 800 mm per year. North West England is one of the more exposed parts of the UK and may

produce intense rainfall rates, which may lead to flooding. The South West of England is exposed to deep depressions, which come off the Atlantic, and can sometimes bring very strong winds, especially in the winter half of the year. For this reason, average annual windspeed strength across SW England