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Climate in Stamford · NOAA 1991–2020 normals

Stamford gets about 83 inches of snow a winter, more than 96% of U.S. towns

High summer brings afternoon highs near 77°. In July, afternoons here are cooler than in 97% of U.S. towns. Since 1901–2000, the year has warmed by 1.2°, most of all in December. Garden chairs stay out from May to September, the months with highs of 65–77°.

More snow than 96% of U.S. towns#217Snowiest  of 855 in NY
Cooler July afternoons than 97% of U.S. towns#8Coolest summers  of 876 in NY
All NY rankings →

A year in Stamford at a glance

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

Jan30°12° 21" snow
Feb32°13° 20" snow
Mar40°20° 15" snow
Apr53°31° 3" snow
May65°42° Last frost ~May 19
Jun73°50° 1 day 90°+Wettest
Jul77°55° 1 day 90°+
Aug76°54° 1 day 90°+
Sep69°47°
Oct57°37° First frost ~Oct 1
Nov now45°28° 6" snow
Dec34°19° 18" snow

What stands out about Stamford’s climate

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

A normal year

What a year in Stamford feels like

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

Winter
32° / 15°
23 days with 1"+ of snow
Spring
53° / 31°
Last frost around May 19
Summer
75° / 53°
2 days reach 90°
Fall
57° / 37°
First frost around Oct 1
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 132 frost-free days a year

In half of years the last 32° night comes by May 19 and the first by October 1. Frost and day counts come from NOAA’s station at Delhi 2 Se, NY, 18 miles from the town’s center, 420 ft lower.

169
nights at or below 32° in a normal year
30th most of 876 in New York
More freezing nights than 95% of U.S. towns
16
nights at or below 0°
117th most of 876 in New York
More nights at or below 0° than 91% of U.S. towns
2
days that reach 90°
95th fewest of 876 in New York
Fewer 90° days than 96% of U.S. towns
0
days that reach 100°
None in a normal year
5bUSDA zone
Plant hardiness zone 5b

The 2023 USDA map puts Stamford’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −15°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

29
JFMAMJJASOND

90° days by month

Average days at 90° or more

0.8
JFMAMJJASOND
Rain & snow

About 83 inches of snow a winter

Snow, measured at Emmons, NY, is heaviest from January through February, about 20 inches a month. Precipitation (rain plus melted snow) adds up to 45 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 158 days a year.

45"
Rain + melted snow a year
286th wettest of 876 in New York
Wetter than 61% of U.S. towns
83"
Snow in a normal winter
217th snowiest of 855 in New York
More snow than 96% of U.S. towns
86 days
With 1"+ of snow on the ground
127th most of 654 in New York
More days with snow on the ground than 92% of U.S. towns

Rain + melted snow by month

Inches of water

4.7"
JFMAMJJASOND

Snowfall by month

Inches of snow

21"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Stamford

96% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.

7,449 heating degree daysMore heating than 92% of U.S. towns
305 cooling degree daysLess cooling than 95% 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 Delhi 2 Se, NY.

Living here

Living with Stamford’s climate

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

The garden window

132 frost-free days in zone 5b. The last frost comes by May 19 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 1.

Get outside

Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 1.8 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Stamford from natural hazards, river flooding is the largest share (84%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Stamford and its neighbors

Every town next door is within a degree of Stamford in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Worcester: January low 12°, July high 77°Davenport: January low 13°, July high 80°Maryland: January low 12°, July high 78°Kortright: January low 12°, July high 78°Jefferson: January low 12°, July high 77°Roxbury: January low 12°, July high 76°Bovina: January low 13°, July high 78°Bloomville: January low 12°, July high 78°Delhi: January low 13°, July high 79°Harpersfield: January low 12°, July high 78°Stamford: January low 12°, July high 78°Stamford: January low 12°, July high 77°StamfordHarpersfieldStamford
ColderMilder12° to 13°
Stamford11.8°
Harpersfield12.1° about the same
Stamford12.4° about the same

Climates most like Stamford’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
Stamford, NY12°77°45"83"
Belfast, ME12°76°48"72"
Northfield, VT7°79°44"76"
Berlin, NH5°77°45"82"
Bradford, PA15°80°44"75"

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 Stamford averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.9°).

+1.2°1991–2020 vs. 1901–2000

A smaller shift than in 59% of U.S. towns.

Winter+2.3°now 23°, was 21°
Spring+0.9°now 42°, was 41°
Summer+0.7°now 64°, was 63°
Fall+1.1°now 47°, was 46°

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 Stamford compares

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

Summer heat77° July high
Cooler July afternoons than 97% of U.S. towns8th coolest of 876 in New York
Winter cold12° January low
Colder January nights than 91% of U.S. towns88th coldest of 876 in New York
Precipitation45" a year
Wetter than 61% of U.S. towns286th wettest of 876 in New York
Snow83" a winter
More snow than 96% of U.S. towns217th snowiest of 855 in New York
Hot days2 days at 90°+
Fewer 90° days than 96% of U.S. towns95th fewest of 876 in New York
Freezing nights169 a year
More freezing nights than 95% of U.S. towns30th most of 876 in New York
Growing season132 frost-free days
A shorter frost-free season than 98% of U.S. towns6th shortest of 876 in New York
Month by month

Stamford weather by month

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

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January30°12°2.9"20.7"182310° – 29°
February32°13°2.5"19.5"13228° – 29°
March40°20°3.1"14.5"141723° – 42°
April53°31°3.7"3.3"14235° – 47°
May65°42°4.0"0.3"13048° – 59°
June73°50°4.7"0.0"12058° – 66°
July77°55°4.4"0.0"12062° – 69°
August76°54°4.5"0.0"11061° – 69°
September69°47°4.4"0.0"10055° – 62°
October57°37°4.4"0.8"13042° – 53°
November45°28°3.2"6.3"13531° – 42°
December34°19°3.5"17.6"161619° – 38°
Year54°34°45.2"83.0"15886
Year to year

How much a month can swing

A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 8° to 29°. July is the most reliable, staying within 8°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Stamford’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 Stamford’s center.
  • Snow: Emmons, NY.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Delhi 2 Se, NY, 18 miles from the town’s center, 420 ft lower; 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 Stamford’s climate

What is the weather like in Stamford?

A typical July afternoon reaches 77°, a January night drops to 12°, and about 83 inches of snow falls in a normal winter. Colder January nights than 91% of U.S. towns; cooler July afternoons than 97% of U.S. towns.

How cold does it get in Stamford in winter?

January nights average 12°. About 169 nights a year reach 32° or below and 16 reach 0° or below. In the coldest January of the last 30 years the month averaged 10°.

How much snow does Stamford get?

About 83 inches in a normal winter at Emmons, NY, heaviest from January through February, about 20 inches a month, with snow on the ground about 86 days a year.

How hot does it get in Stamford?

July, with a typical high of 77° and a low of 55°. About 2 days a year reach 90° (Delhi 2 Se, NY).

When is the first and last frost in Stamford?

In half of years the last spring frost (32°) comes by May 19 and the first fall frost by October 1, about 132 frost-free days, at Delhi 2 Se, NY.

What growing zone is Stamford in?

Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −15°.

What is the best time of year to visit Stamford?

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

Is Stamford getting warmer?

Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 59% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Stamford.

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.