Democratic congressional candidate Zephyr Teachout, even before April, was raising a staggering amount of money.

But in the last month alone, her campaign says she’s raised $418,000 — a large haul for an upstate House race.

“This month we set an almost impossible to reach $400,000 April goal,” the fundraising email sent to supporters on Saturday says. “Yesterday, we hit our goal! That’s right — we’ve raised $418,000 in April.”

The email calls for more donors to send them $25,000 before midnight.

Teachout has proven her campaign to be something of a fundraising behemoth, leading the 76 congressional candidates in New York who filed financial reports with the Federal Elections Commission so far this year. Between the reporting period of January through March, Teachout received $530,732 in contributions.

Most of those donations to the campaign have come in the form of small dollar amounts.

Teachout is running for the Democratic nomination in the 19th congressional district against Will Yandik.

On the Republican side, three candidates are vying for the GOP line: former Assembly Minority Leader John Faso, businessman Andrew Heaney and Bob Bishop.

The district is being vacated this year by Republican Rep. Chris Gibson, who is considering a run for governor in 2018.

The Hudson Valley House seat is accustomed to attention and well-financed campaigns, having been a battleground district since 2012.