Niwa has compared average January and February weather across the country, and found the best timing was regionally dependant.
"It's about 50-50 really, who has better weather in February and who doesn't," Noll said.
"It's a toss up. There are places in the South Island that are cooler in February, but then you look at Auckland, it has less days with rain in February."
But Dunne is sticking by the petition.
He said the forecast for more settled weather through March proves his point.
The petition has so far gathered more than 2900 signatures out of the required 5000.
Dunne hopes a blast of publicity will take the number of signatures well into the five figures.
"I think that maybe people have just got back into the year's groove and forgotten about it.
"Then as the weather's improved, they're not thinking about it at all.
"They should just hark back to what it was like in December-January."
Dunne said initial polling showed a strong mood for change.
His team is planning a publicity campaign for the petition, and he believes that will get people behind the issue once again.
"Just imagine if people were heading off to summer holidays right now.
"Once we get the finer, settled weather the summer blues go away.
"But they'll come back next year."
Despite autumn being ready to hit tomorrow, WeatherWatch said the summer weather was set to continue into part of March.
The first day of March tomorrow would kick off with a large high, centred both to the east and west of the country, putting it firmly in control of New Zealand's weather, WeatherWatch said.
This means light winds, sea and lake breezes and daytime cloud build-ups, producing the odd heavy downpour for the inland upper North Island, mostly Waikato and the Bay of Plenty ranges.
The high is expected to centre over the North Island over the rest of the working week, stretching summer out that little bit longer.