MARS

For certain datasets like the seasonal forecast monthly means, it specifies the complete calendar month which follows the forecast base date. For example, fcmonth=2 is the second whole calendar month. For a forecast starting 1st January this would be February. For a forecast starting 2nd January this would be March.

fcmonth=<value>

Dissemination

For certain data subsets of the  seasonal forecast fcmonth specifies the number of months taken into account. The forecast base time is always the first of a month. Currently the maximum is 7 month.

Example