Minimum surface air temperature (Tmin) anomaly regressed onto different El Niño indices. Results are based on NCEP reanalysis during 1948-2016. Monthly anomalies are calculated relative to the climatology of 1950-1999.

Minimum surface air temperature (Tmin): Annual

Tmin-Annual Image

Minimum surface air temperature (Tmin): December to February

Tmin-Dec - feb Image

Minimum surface air temperature (Tmin): March to May

Tmin-March-May Image

Minimum surface air temperature (Tmin): June to August

Tmin-June-Aug Image

Minimum surface air temperature (Tmin): September to November

Tmin-Sep-Nov Image