Maps of monthly means and anomalies of meteorological values over the Northern hemisphere for the previous month

Anomalies of geopotential height of the 500 gPa surface

Anomalies of temperature at the mean sea level

Geopotential height of the 100 gPa surface

Mean sea level pressure

Temperature at the 100 gPa level

Anomalies of mean sea level pressure

Geopotential height of the 500 gPa surface

Temperature at the 500 gPa level

Temperature at the mean sea level

Anomalies of temperature at the 500 gPa level