Chazy, New York climate: Normal weather by month, frost dates and records
Chazy's normal year runs from 10°F January nights to 82°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.3°C, January lows of −12°C, July highs of 28°C.
- NOAA stationChazy
- Station IDUSC00301401
- Location44.88°N 73.40°W
- Elevation157 ft (48 m)
- From the center2 miles
- Population (census place)409
On October 23, the normal high in Chazy is 56°F and the normal low 39°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Chazy.
- Jan 28° 10°
- Feb 31° 12°
- Mar 41° 23°
- Apr 56° 36°
- May 69° 47°
- Jun 78° 57°
- Jul 82° 63°
- Aug 80° 60°
- Sep 72° 52°
- Oct 59° 41°
- Nov 46° 31°
- Dec 34° 20°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Chazy each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 10°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 28°F | 10°F | 19.3°F | – | <1 | 30 | 9 h 10 min |
| February | 31°F | 12°F | 21.4°F | – | <1 | 26 | 10 h 20 min |
| March | 41°F | 23°F | 31.7°F | – | <1 | 26 | 11 h 50 min |
| April | 56°F | 36°F | 45.8°F | – | <1 | 13 | 13 h 30 min |
| May | 69°F | 47°F | 58.4°F | – | <1 | 2 | 14 h 50 min |
| June | 78°F | 57°F | 67.2°F | – | 1 | <1 | 15 h 30 min |
| July | 82°F | 63°F | 72.1°F | – | 1 | <1 | 15 h 20 min |
| August | 80°F | 60°F | 70.1°F | – | 1 | <1 | 14 h 10 min |
| September | 72°F | 52°F | 62.2°F | – | <1 | 1 | 12 h 40 min |
| October | 59°F | 41°F | 50.1°F | – | <1 | 9 | 11 h |
| November | 46°F | 31°F | 38.5°F | – | <1 | 19 | 9 h 40 min |
| December | 34°F | 20°F | 27.0°F | – | <1 | 27 | 8 h 50 min |
| Year (annual) | 56°F | 38°F | 47.0°F | – | 4 | 152 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | −2°C | −12°C | −7.1°C |
| February | −1°C | −11°C | −5.9°C |
| March | 5°C | −5°C | −0.2°C |
| April | 13°C | 2°C | 7.7°C |
| May | 21°C | 9°C | 14.7°C |
| June | 25°C | 14°C | 19.6°C |
| July | 28°C | 17°C | 22.3°C |
| August | 27°C | 16°C | 21.2°C |
| September | 22°C | 11°C | 16.8°C |
| October | 15°C | 5°C | 10.1°C |
| November | 8°C | 0°C | 3.6°C |
| December | 1°C | −7°C | −2.8°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, St. Albans (15 miles away), gets 80 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00301401; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Chazy?
Normal highs sit between 65°F and 85°F in May, June, July, August and September.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00301401.
When is the last frost in Chazy?
In Chazy, the last spring frost (32°F) comes after April 30 in half of years and after May 14 in one year in ten; the first autumn frost comes before October 12 in half of years and before September 29 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 301 year in 10 after May 14; 9 in 10 after April 17
- First autumn frost, half of years before
- October 121 year in 10 before September 29; 9 in 10 before October 30
NOAA puts the median frost-free season at 164 days, and the season without a hard freeze (28°F) at 189 days.
A hard freeze (28°F) comes after April 19 in half of springs and before October 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Chazy in zone 5a in ZIP code 12921, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Chazy's NOAA station is in zone 4b: the coldest night of a typical year reaches −20°F (16 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in New York · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00301401; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Chazy?
In a normal year in Chazy, 4 days a year reach 90°F and 152 nights fall to 32°F or colder.
- Days at 90°F or more
- 4a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 152a normal year
- Days that stay below freezing
- 58high of 32°F or less
The highest temperature in this station's record (since 1902) is 104°F, on July 3, 1911; the lowest is −44°F, on January 27, 1994.
The wettest calendar year on that record is 1954, with 39.99 in; the snowiest season is 1962–63, with 105.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00301401; records: ACIS (NOAA Regional Climate Centers), station USC00301401. Records use complete months only; a month missing more than three days is left out.
How sunny is Chazy?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Chazy, 3.5 kWh per square metre a day. August is the sunniest month (75%) and December the cloudiest (54%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 60% | 1.5 |
| February | 62% | 2.3 |
| March | 65% | 3.4 |
| April | 66% | 4.5 |
| May | 67% | 5.2 |
| June | 69% | 5.6 |
| July | 74% | 5.7 |
| August | 75% | 5.1 |
| September | 75% | 4.0 |
| October | 62% | 2.4 |
| November | 60% | 1.6 |
| December | 54% | 1.1 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Chazy need?
A normal year in Chazy brings 7,126 heating degree days, 33% more than the median U.S. place (5,373), and 601 cooling degree days, 34% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,648 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,417 | 0 |
| February | 1,221 | 0 |
| March | 1,032 | 0 |
| April | 579 | 3 |
| May | 230 | 26 |
| June | 47 | 115 |
| July | 5 | 227 |
| August | 17 | 175 |
| September | 137 | 52 |
| October | 465 | 3 |
| November | 795 | 0 |
| December | 1,180 | 0 |
| Year (annual) | 7,126 | 601 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00301401. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Chazy's climate compare?
Chazy is warmer than 60 of the other 130 places with their own NOAA record in New York. Across the 7,247 U.S. stations with normals, its annual mean of 47.0°F is warmer than 28%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Chazy share this climate record?
6 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Swanton, VT2,382 people · 14 mi E
- Champlain, NY1,132 people · 8 mi N
- Alburgh, VT611 people · 8 mi NE
- West Chazy, NY572 people · 7 mi SW
- Mooers, NY423 people · 11 mi NW
- Highgate Springs, VT2 people · 16 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Chazy's climate
What is the coldest month in Chazy?
January, with a normal high of 28°F and a normal low of 10°F. The warmest is July (82°F by day, 63°F at night).
Does it snow in Chazy?
Yes. NOAA publishes no 1991-2020 snowfall normal for Chazy's NOAA station; the nearest record that keeps one, St. Albans (15 miles away), records 80 inches of snow in a normal year.
What plant hardiness zone is Chazy in?
The USDA's 2023 map puts Chazy in zone 5a in ZIP code 12921, the nearest ZIP area. By the same method at Chazy's NOAA station, the coldest night of a typical year reaches −20°F (16 years, 1991-2020): zone 4b.
How late can frost come in Chazy?
In half of years the last 32°F night comes after April 30; in one year in ten it comes after May 14. Waiting until May 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- New York climateThe statewide normals and every place in the state
- St. Albans, VT15 miles from this station, 44.7°F a year
- Plattsburgh, NY16 miles from this station, 45.3°F a year
- South Hero, VT18 miles from this station, 46.7°F a year
- Dannemora, NY19 miles from this station, 44.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made