Global and hemispheric temperature timeseries are available for annual, seasonal and individual months from 1850 to present. Seasonal means are December-February (DJF), March-May (MAM), June-August ...

Issued at 10:51 am CST Thursday 8 May 2025 (issued every 10 minutes, with the page automatically refreshed every 5 minutes) Where no observation is available within the last 75 minutes, the latest ...