The current "green drought" was, however, not as severe as the big dry of 2008-09 and he was able to apply the lessons he had learned then.
That included early culling, reduced his herd from the usual 700 to 640; switching to once-a-day milking; and using supplements such as chicory and silage to keep his cattle in good condition in case rain returned.
The official declaration of a drought made little difference to him as an individual farmer but for the industry as a whole it was a good move because it meant extra support would be available.
Mr Guy said the announcement followed a request from local groups, including the Northland Rural Support Trust, and advice from the Ministry for Primary Industries and the Northland Regional Council.
Advice from Niwa was that there was no rain in sight until March.
"What we need is a tropical storm to dump 100mm-plus of rain," he said.
The Minister said farmers did not want handouts but they did want to know that Wellington cared about their livelihoods and did enough to support them.
The long term answer, Mr Guy said, was more water storage and irrigation.
The Government believed an extra 90,000ha of Northland could be irrigated and had spent $200,000 on studies to see how that could be achieved.
The Government was also keeping a close eye on Gisborne, Hawke's Bay and North Canterbury, which were also grappling with the after-effects of an earthquake.