The predominant wind direction in the Netherlands is southwest, which causes a moderate maritime climate, with cool summers and mild winters.
This is especially the case with places within direct proximity of the Dutch coastline, which sometimes are over 10 oC warmer (in Winter) or cooler (in Summer) than places in the (south)east of the country.
The following tables are based on mean measurements by the KNMI weather station in De Bilt between 1971 and 2000:
Ice days (maximum temperature below 0 oC) usually occur from December until February, with the occasional rare ice day prior to or after that period. Freezing days (minimum temperature below 0 oC) occur much more often, usually ranging from mid November to late March, but not rarely measured as early as mid October and as late as mid May.
If one chooses the height of measurement to be 10 cm. above ground instead of 150 cm., one may even find such temperatures in the middle of the summer.
Warm days (maximum temperature above 20 oC) in De Bilt are usually measured in the time span of April until September, but in some parts of the country such temperatures can also occur in March and October (this is usually not in De Bilt, however).
Summer days (maximum temperature above 25 oC) are usually measured in De Bilt from May until August, tropical days (maximum temperature above 30 oC) are rare and usually occur only from June until August.
Precipitation throughout the year is relatively equally shared by each month.
Summer and Autumn months tend to gather a little bit more precipitation than other months, mainly because of the intensity of the rainfall rather than the frequency of rain days (this is especially the case in Summer, when lightning too is much more frequent than otherwise).
NOTE: The information regarding Netherlands on this page is re-published from Wikipedia and World Meteorological Organization.
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This page was last modified 09-Feb-11
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