Yorktown Heights, New York climate: Normal weather by month, frost dates and records
Yorktown Heights's normal year runs from 17°F January nights to 83°F July afternoons, with 50.3 inches of precipitation and 40 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.7°C, January lows of −8°C, July highs of 28°C, 1,278 mm of precipitation a year.
- NOAA stationYorktown Hts (1 mi W)
- Station IDUSC00309670
- Location41.27°N 73.80°W
- Elevation670 ft (204 m)
- From the center1 miles
- Population (census place)2,038
On October 14, the normal high in Yorktown Heights is 63°F and the normal low 42°F, and the chance of measurable rain or snow is 31%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Yorktown Heights.
- Jan 36° 17°
- Feb 39° 18°
- Mar 47° 25°
- Apr 60° 36°
- May 70° 46°
- Jun 78° 55°
- Jul 83° 61°
- Aug 81° 59°
- Sep 74° 52°
- Oct 63° 41°
- Nov 51° 32°
- Dec 41° 23°
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 Yorktown Heights each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 17°F. The most precipitation falls in June (5.00 in), the least in February (3.06 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 17°F | 26.1°F | 3.72 | 8.8 | 11 | <1 | 27 | 9 h 30 min |
| February | 39°F | 18°F | 28.2°F | 3.06 | 12.6 | 9 | <1 | 25 | 10 h 40 min |
| March | 47°F | 25°F | 36.1°F | 4.10 | 8.2 | 11 | <1 | 20 | 11 h 50 min |
| April | 60°F | 36°F | 47.8°F | 3.89 | 1.8 | 11 | <1 | 5 | 13 h 20 min |
| May | 70°F | 46°F | 57.7°F | 3.91 | 0.0 | 12 | 1 | <1 | 14 h 30 min |
| June | 78°F | 55°F | 66.6°F | 5.00 | 0.0 | 11 | 2 | <1 | 15 h 10 min |
| July | 83°F | 61°F | 71.9°F | 4.32 | 0.0 | 10 | 4 | <1 | 14 h 50 min |
| August | 81°F | 59°F | 70.2°F | 4.28 | 0.0 | 10 | 3 | <1 | 13 h 50 min |
| September | 74°F | 52°F | 63.1°F | 4.80 | 0.0 | 9 | 1 | <1 | 12 h 30 min |
| October | 63°F | 41°F | 51.7°F | 4.61 | 0.0 | 9 | <1 | 3 | 11 h 10 min |
| November | 51°F | 32°F | 41.4°F | 4.24 | 0.5 | 9 | <1 | 12 | 9 h 50 min |
| December | 41°F | 23°F | 32.0°F | 4.37 | 7.6 | 11 | <1 | 24 | 9 h 10 min |
| Year (annual) | 60°F | 39°F | 49.4°F | 50.30 | 39.5 | 122 | 10 | 116 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −8°C | −3.3°C | 94 mm | 22 cm |
| February | 4°C | −8°C | −2.1°C | 78 mm | 32 cm |
| March | 8°C | −4°C | 2.3°C | 104 mm | 21 cm |
| April | 15°C | 2°C | 8.8°C | 99 mm | 5 cm |
| May | 21°C | 8°C | 14.3°C | 99 mm | 0 cm |
| June | 26°C | 13°C | 19.2°C | 127 mm | 0 cm |
| July | 28°C | 16°C | 22.2°C | 110 mm | 0 cm |
| August | 27°C | 15°C | 21.2°C | 109 mm | 0 cm |
| September | 24°C | 11°C | 17.3°C | 122 mm | 0 cm |
| October | 17°C | 5°C | 10.9°C | 117 mm | 0 cm |
| November | 11°C | 0°C | 5.2°C | 108 mm | 1 cm |
| December | 5°C | −5°C | 0.0°C | 111 mm | 19 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00309670; 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 Yorktown Heights?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (9).
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 USC00309670.
When is the last frost in Yorktown Heights?
In Yorktown Heights, the last spring frost (32°F) comes after April 25 in half of years and after May 8 in one year in ten; the first autumn frost comes before October 19 in half of years and before October 4 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 251 year in 10 after May 8; 9 in 10 after April 13
- First autumn frost, half of years before
- October 191 year in 10 before October 4; 9 in 10 before November 3
NOAA puts the median frost-free season at 174 days, and the season without a hard freeze (28°F) at 198 days.
A hard freeze (28°F) comes after April 13 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Yorktown Heights in zone 7a in ZIP code 10598, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Yorktown Heights's NOAA station is in zone 6b: the coldest night of a typical year reaches 0°F (24 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 USC00309670; 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 Yorktown Heights?
In a normal year in Yorktown Heights, 10 days a year reach 90°F, 116 nights fall to 32°F or colder and 122 days bring measurable precipitation.
- Days at 90°F or more
- 10a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 116a normal year
- Days that stay below freezing
- 29high of 32°F or less
- Days with 0.01 inch of precipitation
- 122a normal year
- Days with 1 inch of snow or more
- 12a normal year
The highest temperature in this station's record (since 1965) is 100°F, on July 16, 1995; the lowest is −15°F, on January 27, 1994.
The wettest calendar year on that record is 1996, with 67.82 in; the snowiest season is 1995–96, with 103.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00309670; records: ACIS (NOAA Regional Climate Centers), station USC00309670. Records use complete months only; a month missing more than three days is left out.
How sunny is Yorktown Heights?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Yorktown Heights, 3.9 kWh per square metre a day. July is the sunniest month (79%) and December the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 1.8 |
| February | 70% | 2.7 |
| March | 68% | 3.7 |
| April | 69% | 4.8 |
| May | 69% | 5.4 |
| June | 74% | 5.9 |
| July | 79% | 6.0 |
| August | 78% | 5.3 |
| September | 77% | 4.3 |
| October | 70% | 2.9 |
| November | 70% | 2.0 |
| December | 65% | 1.5 |
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 Yorktown Heights need?
A normal year in Yorktown Heights brings 6,234 heating degree days, 16% more than the median U.S. place (5,373), and 590 cooling degree days, 35% 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 2,692 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,206 | 0 |
| February | 1,029 | 0 |
| March | 896 | 0 |
| April | 521 | 5 |
| May | 249 | 24 |
| June | 58 | 106 |
| July | 7 | 220 |
| August | 13 | 174 |
| September | 112 | 56 |
| October | 417 | 5 |
| November | 707 | 0 |
| December | 1,021 | 0 |
| Year (annual) | 6,234 | 590 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00309670. 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.
Has Yorktown Heights been warmer than normal lately?
Over 115 complete years from 1890 to 2016, the station's annual mean temperature rose at a fitted 3.7°F per century (+0.20°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Yorktown Heights's climate compare?
Yorktown Heights is warmer than 99 of the other 130 places with their own NOAA record in New York, and wetter than 106. Across the 7,247 U.S. stations with normals, its annual mean of 49.4°F is warmer than 38%.
In the Köppen classification computed from these normals, Yorktown Heights is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Yorktown Heights 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.
- Haverstraw, NY12,445 people · 10 mi SW
- Croton-on-Hudson, NY8,232 people · 7 mi SW
- Ridgefield, CT25,300 people · 16 mi E
- Montrose, NY3,702 people · 8 mi W
- Crugers, NY1,386 people · 7 mi W
- Millwood, NY854 people · 4 mi S
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 Yorktown Heights's climate
What is the coldest month in Yorktown Heights?
January, with a normal high of 36°F and a normal low of 17°F. The warmest is July (83°F by day, 61°F at night).
Does it snow in Yorktown Heights?
Yes: 40 inches in a normal year, falling on 17 days with 0.1 inch or more, the most in February (12.6 inches).
What is the rainiest month in Yorktown Heights?
June, with 5.00 in of precipitation in a normal year; the driest is February with 3.06 in.
What plant hardiness zone is Yorktown Heights in?
The USDA's 2023 map puts Yorktown Heights in zone 7a in ZIP code 10598, the nearest ZIP area. By the same method at Yorktown Heights's NOAA station, the coldest night of a typical year reaches 0°F (24 years, 1991-2020): zone 6b.
How late can frost come in Yorktown Heights?
In half of years the last 32°F night comes after April 25; in one year in ten it comes after May 8. Waiting until May 8 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
- Shrub Oak, NY5 miles from this station, 50.2°F a year
- West Point, NY12 miles from this station, 52.1°F a year
- Westchester County Airport, NY14 miles from this station, 52.0°F a year
- Carmel, NY16 miles from this station, 48.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made