NEW YORK -- Last month was the globe's warmest November on record, the seventh consecutive month to reach a new high.

A climate update Thursday from the National Oceanic and Atmospheric Administration also noted a record-warm average temperature for January through November as a whole. NOAA scientist Jake Crouch said it's "virtually certain" that 2015 will be the warmest year globally since record-keeping began in 1880.

The agency also said it's been the warmest autumn on record for the continental U.S., with an average temperature of 13.8 C for September through November.

Crouch said the warmth has come from climate change, a strong El Nino and some other short-term influences.

The forecast through March calls for an easing of drought in California and Nevada.