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Climate in North Merrick · NOAA 1991–2020 normals

North Merrick’s winters are milder and less snowy than most of the U.S.

A typical July afternoon reaches 85°, a January night drops to 26°, and about 19 inches of snow falls in a normal winter.

Milder January nights than 65% of U.S. towns#21Mildest winters  of 875 in NY
Less snow than 54% of U.S. towns#1Least snow  of 854 in NY
All NY rankings →

A year in North Merrick at a glance

Each month’s typical high and low, and what it brings.

Jan40°26°
Feb43°27° 6" snow
Mar50°33° 3" snowWettest
Apr60°42° Last frost ~Apr 3
May70°51°
Jun79°61° 2 days 90°+
Jul85°67° 4 days 90°+
Aug83°66° 3 days 90°+
Sep76°59°
Oct65°48°
Nov now55°39° First frost ~Nov 11
Dec45°31° 6" snow

What stands out about North Merrick’s climate

Compared with towns across the U.S., with North Merrick’s place in New York beside it.

A normal year

What a year in North Merrick feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
43° / 28°
6 days with 1"+ of snow
Spring
60° / 42°
Last frost around Apr 3
Summer
82° / 65°
9 days reach 90°
Fall
65° / 48°
First frost around Nov 11
Best months to be outsideMayJunAugSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 221 frost-free days a year

In half of years the last 32° night comes by April 3 and the first by November 11. Frost and day counts come from NOAA’s station at Wantagh Cedar Creek, NY, 4 miles from the town’s center, at about the same height.

77
nights at or below 32° in a normal year
15th fewest of 875 in New York
Fewer freezing nights than 70% of U.S. towns
<1
nights at or below 0°
26th fewest of 875 in New York
Fewer nights at or below 0° than 69% of U.S. towns
9
days that reach 90°
530th fewest of 875 in New York
Fewer 90° days than 79% of U.S. towns
<1
days that reach 100°
46th most of 875 in New York
More 100° days than 57% of U.S. towns
7bUSDA zone
Plant hardiness zone 7b

The 2023 USDA map puts North Merrick’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 8°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

22
JFMAMJJASOND

90° days by month

Average days at 90° or more

3.8
JFMAMJJASOND
Rain & snow

About 19 inches of snow a winter

Snow, measured at Mineola, NY, falls mostly in February and December. Precipitation (rain plus melted snow) adds up to 45 inches a year; March is the wettest month and February the driest. Rain or snow falls on about 114 days a year.

45"
Rain + melted snow a year
316th wettest of 875 in New York
Wetter than 60% of U.S. towns
19"
Snow in a normal winter
The least snowy of 854 in New York
Less snow than 54% of U.S. towns

Rain + melted snow by month

Inches of water

4.2"
JFMAMJJASOND

Snowfall by month

Inches of snow

6"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in North Merrick

80% of the work is heating. Months averaging under 55° run from November through April.

4,591 heating degree daysLess heating than 64% of U.S. towns
1,115 cooling degree daysMore cooling than 60% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Wantagh Cedar Creek, NY.

Living here

Living with North Merrick’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

221 frost-free days in zone 7b. The last frost comes by Apr 3 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 11.

Get outside

Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October. 0.0 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in North Merrick from natural hazards, river flooding is the largest share (69%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

North Merrick and its neighbors

East Meadow has the coldest January nights next door (25°, 1° colder). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.

Freeport: January low 27°, July high 84°Bellmore: January low 27°, July high 84°North Wantagh: January low 26°, July high 85°Wantagh: January low 26°, July high 85°Baldwin: January low 27°, July high 84°Salisbury: January low 25°, July high 85°Levittown: January low 24°, July high 85°Westbury: January low 25°, July high 85°Hempstead: January low 26°, July high 85°Garden City: January low 25°, July high 85°Hempstead: January low 27°, July high 84°North Hempstead: January low 26°, July high 85°Carle Place: January low 25°, July high 85°Merrick: January low 27°, July high 84°North Bellmore: January low 26°, July high 85°Roosevelt: January low 26°, July high 85°East Meadow: January low 25°, July high 85°Uniondale: January low 25°, July high 85°North Merrick: January low 26°, July high 85°North MerrickMerrickNorth BellmoreRooseveltEast MeadowUniondale
ColderMilder24° to 27°
East Meadow24.6° −1.1°
Uniondale24.8° about the same
Roosevelt25.5° about the same
North Merrick25.7°
North Bellmore25.7° about the same
Merrick26.7° +1.0°

Climates most like North Merrick’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
North Merrick, NY26°85°45"19"
Massanetta Springs, VA24°85°43"19"
Jackson, OH23°85°44"21"
Fairmont, WV23°84°46"24"
Asheville, NC27°85°46"12"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in North Merrick averaged 2.2° warmer than the 1900s. The biggest change is in December (+3.6°).

+2.2°1991–2020 vs. 1901–2000

A bigger shift than in 95% of U.S. towns.

Winter+3.1°now 35°, was 32°
Spring+2.0°now 51°, was 49°
Summer+1.9°now 73°, was 72°
Fall+1.7°now 57°, was 55°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How North Merrick compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with North Merrick’s place among New York’s.

Summer heat85° July high
Cooler July afternoons than 54% of U.S. towns771st coolest of 875 in New York
Winter cold26° January low
Milder January nights than 65% of U.S. towns21st mildest of 875 in New York
Precipitation45" a year
Wetter than 60% of U.S. towns316th wettest of 875 in New York
Snow19" a winter
Less snow than 54% of U.S. townsThe least snowy of 854 in New York
Hot days9 days at 90°+
Fewer 90° days than 79% of U.S. towns530th fewest of 875 in New York
Freezing nights77 a year
Fewer freezing nights than 70% of U.S. towns15th fewest of 875 in New York
Growing season221 frost-free days
A longer frost-free season than 80% of U.S. towns29th longest of 875 in New York
Month by month

North Merrick weather by month

Highs, lows and precipitation from NOAA’s grid at North Merrick’s center; snow, wet days and snow on the ground from Mineola, NY. 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January40°26°3.3"2.9"1124° – 40°
February43°27°3.0"6.2"1023° – 40°
March50°33°4.2"3.1"1137° – 49°
April60°42°3.8"0.4"1147° – 55°
May70°51°3.5"0.0"1156° – 65°
June79°61°3.9"0.0"967° – 75°
July85°67°3.7"0.0"971° – 81°
August83°66°4.2"0.0"970° – 78°
September76°59°3.9"0.0"865° – 72°
October65°48°4.0"0.0"852° – 63°
November55°39°3.3"0.2"941° – 51°
December45°31°4.2"5.7"1131° – 50°
Year63°46°45.0"18.5"114
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 31° to 50°. September is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where North Merrick’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at North Merrick’s center.
  • Snow: Mineola, NY.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Wantagh Cedar Creek, NY, 4 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about North Merrick’s climate

What is the weather like in North Merrick?

A typical July afternoon reaches 85°, a January night drops to 26°, and about 19 inches of snow falls in a normal winter. Milder January nights than 65% of U.S. towns; cooler July afternoons than 54% of U.S. towns.

How cold does it get in North Merrick in winter?

January nights average 26°. About 77 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 24°.

How much snow does North Merrick get?

About 19 inches in a normal winter at Mineola, NY, most of it in February and December.

How hot does it get in North Merrick?

July, with a typical high of 85° and a low of 67°. About 9 days a year reach 90° (Wantagh Cedar Creek, NY).

When is the first and last frost in North Merrick?

In half of years the last spring frost (32°) comes by April 3 and the first fall frost by November 11, about 221 frost-free days, at Wantagh Cedar Creek, NY.

What growing zone is North Merrick in?

Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 8°.

What is the best time of year to visit North Merrick?

By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is North Merrick getting warmer?

Yes: 1991–2020 averaged 2.2° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 95% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in North Merrick.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.