Monthly Northern Hemisphere Sea-Level Pressure Grids
X axis: whole world in 72 5.00° steps,
first point at 0.00° E, last point at 355.00° E
Y axis: regular grid with 16 5.00° steps,
first point at 15.00° N, last point at 90.00° N
Monthly data available from Jan1899 to Oct2018 (1438 months)
Variable slp (observed sealevel pressure) in mb Full metadata.