As Britain leaves behind what looks to have been the coldest March for more than 50 years, forecasters are warning it will stay cold for another week at least.
Meteorologists are blaming the bad weather on the position of the jet stream, a narrow band of very strong winds which tends to move from west to east across the Atlantic, bringing our weather systems with it.
Sky News weather presenter Isobel Lang said: "The jet stream is currently displaced well to the south of its usual position across the north Atlantic and Europe, located across the Azores, Spain and the Mediterranean.
"So the UK will remain stuck in the cold air to the north and it's set to stay cold for at least another week.
"Daytime highs during this first week of April will remain well below average (9C to 11C for early April) and as the easterly wind strengthens again it will feel bitterly cold. Some snow is still likely, too."
The jet stream is a band of strong winds at around 30,000 feet However, she said that next week temperatures will start to pick up by several degrees.
"It is still a way off yet in terms of detail but the trend is there for something a little warmer with highs around the average, or even a little above. This is no April fool..."
The position of a jet stream varies within the natural fluctuations of the environment. They are caused by the temperature difference between tropical air masses around the equator and and polar air masses.
Experts argue about why the jet stream is out of position, but it could be caused by a combination of the reduction in Arctic sea ice over the last few decades, climate change, solar activity and natural variability within the climate.
The Met Office says the average temperatures between March 1 and 26 were just 2.5C (36.5F), three degrees below the long-term average.
This would make it the coldest March since 1962 and also the fourth coldest in the UK since records began in 1910.
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