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Ely Weather
Historical Data Graphs
What does it mean? Humidity
Humidity is the amount of water vapour in the air.
Relative humidity is the most used in weather forecasts. It’s an important part a weather report because it indicates the likelihood of precipitation
(dew, or fog).
Higher relative humidity makes it feel hotter outside in the summer because it reduces the effectiveness of
sweating to cool the body by preventing the evaporation of perspiration from the skin. This effect is calculated
in a heat index table. Warmer air has more thermal energy than cooler air; thus more water molecules can evaporate
and stay in the air in a vapour state rather than a liquid state. This may be why people say that warmer air "holds"
more moisture — in warmer air, there is more energy for more water molecules to hold themselves in the air.
Data from this site is also uploaded to Weather underground as IENGLAND68.
Set out in the menu below are some historical weather graphs. Just click on the relevent tab and select to open each graph in a new browser window.
Weather Maps - Here is a weather outlook map for the U.K
Click Met Office for a 5 day forecast for the Cambridge Area.
Click above for more weather maps from Meteorologica