ERA40 : Sea level pressure

Annual sea level pressure

Ann Temps - annual
Annual Mean
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Seasonal sea level pressure

Temps - winter
Winter (JFM)		 Temps - spring
Spring (AMJ)		 Temps - summer
Summer (JAS)		 Temps - autumn
Autumn (OND)
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Monthly sea level pressure

Temps - january
January		 Temps - february
February		 Temps - march
March		 Temps - april
April		 Temps - may
May		 Temps - june
June
Temps - july
July		 Temps - august
August		 Temps - september
September		 Temps - october
October		 Temps - november
November		 Temps - december
December
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