Delanson, New York climate: Normal weather by month, frost dates and records
Delanson's normal year runs from 12°F January nights to 82°F July afternoons, with 42.6 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.9°C, January lows of −11°C, July highs of 28°C, 1,083 mm of precipitation a year.
- NOAA stationDelanson (2 mi NE)
- Station IDUSC00302031
- Location42.77°N 74.17°W
- Elevation984 ft (300 m)
- From the center1 miles
- Population309
On October 23, the normal high in Delanson is 55°F and the normal low 35°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Delanson.
- Jan 31° 12°
- Feb 34° 13°
- Mar 42° 20°
- Apr 57° 33°
- May 70° 44°
- Jun 77° 54°
- Jul 82° 59°
- Aug 80° 56°
- Sep 74° 49°
- Oct 59° 38°
- Nov 48° 28°
- Dec 36° 19°
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 Delanson each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 12°F. The most precipitation falls in June (4.96 in), the least in February (2.35 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 31°F | 12°F | 21.6°F | 2.62 | – | <1 | 29 | 9 h 20 min |
| February | 34°F | 13°F | 23.4°F | 2.35 | – | <1 | 27 | 10 h 30 min |
| March | 42°F | 20°F | 31.2°F | 3.26 | – | <1 | 26 | 11 h 50 min |
| April | 57°F | 33°F | 45.0°F | 3.44 | – | <1 | 15 | 13 h 20 min |
| May | 70°F | 44°F | 57.0°F | 3.52 | – | <1 | 1 | 14 h 40 min |
| June | 77°F | 54°F | 65.2°F | 4.96 | – | 2 | <1 | 15 h 20 min |
| July | 82°F | 59°F | 70.1°F | 4.48 | – | 4 | <1 | 15 h |
| August | 80°F | 56°F | 67.7°F | 4.14 | – | 1 | <1 | 14 h |
| September | 74°F | 49°F | 61.1°F | 3.58 | – | 1 | <1 | 12 h 30 min |
| October | 59°F | 38°F | 48.2°F | 4.46 | – | <1 | 7 | 11 h 10 min |
| November | 48°F | 28°F | 37.9°F | 2.77 | – | <1 | 21 | 9 h 50 min |
| December | 36°F | 19°F | 27.4°F | 3.04 | – | <1 | 28 | 9 h |
| Year (annual) | 57°F | 35°F | 46.3°F | 42.62 | – | 9 | 154 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 0°C | −11°C | −5.8°C | 67 mm |
| February | 1°C | −11°C | −4.8°C | 60 mm |
| March | 6°C | −6°C | −0.4°C | 83 mm |
| April | 14°C | 1°C | 7.2°C | 87 mm |
| May | 21°C | 7°C | 13.9°C | 89 mm |
| June | 25°C | 12°C | 18.4°C | 126 mm |
| July | 28°C | 15°C | 21.2°C | 114 mm |
| August | 27°C | 13°C | 19.8°C | 105 mm |
| September | 23°C | 9°C | 16.2°C | 91 mm |
| October | 15°C | 3°C | 9.0°C | 113 mm |
| November | 9°C | −2°C | 3.3°C | 70 mm |
| December | 2°C | −7°C | −2.6°C | 77 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Cobleskill (15 miles away), gets 54 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00302031; 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 Delanson?
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 USC00302031.
When is the last frost in Delanson?
In Delanson, the last spring frost (32°F) comes after May 7 in half of years and after May 23 in one year in ten; the first autumn frost comes before October 7 in half of years and before September 25 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
- May 71 year in 10 after May 23; 9 in 10 after April 22
- First autumn frost, half of years before
- October 71 year in 10 before September 25; 9 in 10 before October 22
NOAA puts the median frost-free season at 153 days, and the season without a hard freeze (28°F) at 178 days.
A hard freeze (28°F) comes after April 23 in half of springs and before October 19 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Delanson in zone 5b in ZIP code 12053, the nearest ZIP area.
Frost dates for every NOAA station in New York · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00302031; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Delanson?
In a normal year in Delanson, 9 days a year reach 90°F and 154 nights fall to 32°F or colder.
- Days at 90°F or more
- 9a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 154a normal year
- Days that stay below freezing
- 49high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00302031.
How sunny is Delanson?
Over a year 69% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Delanson, 3.7 kWh per square metre a day. July is the sunniest month (76%) and December the cloudiest (55%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 60% | 1.6 |
| February | 64% | 2.5 |
| March | 68% | 3.7 |
| April | 66% | 4.6 |
| May | 68% | 5.3 |
| June | 70% | 5.8 |
| July | 76% | 5.9 |
| August | 76% | 5.2 |
| September | 75% | 4.2 |
| October | 65% | 2.7 |
| November | 62% | 1.8 |
| December | 55% | 1.3 |
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 Delanson need?
A normal year in Delanson brings 7,203 heating degree days, 34% more than the median U.S. place (5,373), and 430 cooling degree days, 53% 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 2,350 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,344 | 0 |
| February | 1,166 | 0 |
| March | 1,048 | 0 |
| April | 603 | 3 |
| May | 267 | 19 |
| June | 76 | 82 |
| July | 11 | 168 |
| August | 30 | 114 |
| September | 162 | 45 |
| October | 522 | 1 |
| November | 812 | 0 |
| December | 1,164 | 0 |
| Year (annual) | 7,203 | 430 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00302031. 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 Delanson's climate compare?
Delanson is warmer than 46 of the other 130 places with their own NOAA record in New York, and wetter than 59. Across the 7,247 U.S. stations with normals, its annual mean of 46.3°F is warmer than 25%.
In the Köppen classification computed from these normals, Delanson is Dfb: continental, no dry season, warm 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 Delanson share this climate record?
8 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.
- Amsterdam, NY18,169 people · 12 mi N
- Altamont, NY1,651 people · 8 mi SE
- Hagaman, NY1,118 people · 14 mi N
- Mariaville Lake, NY1,011 people · 4 mi NE
- Fort Johnson, NY430 people · 14 mi N
- Esperance, NY352 people · 4 mi W
- Duane Lake, NY279 people · 3 mi E
- Duanesburg, NY145 people · 2 mi E
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 Delanson's climate
What is the coldest month in Delanson?
January, with a normal high of 31°F and a normal low of 12°F. The warmest is July (82°F by day, 59°F at night).
Does it snow in Delanson?
Yes. NOAA publishes no 1991-2020 snowfall normal for Delanson's NOAA station; the nearest record that keeps one, Cobleskill (15 miles away), records 54 inches of snow in a normal year.
What is the rainiest month in Delanson?
June, with 4.96 in of precipitation in a normal year; the driest is February with 2.35 in.
What plant hardiness zone is Delanson in?
The USDA's 2023 map puts Delanson in zone 5b in ZIP code 12053, the nearest ZIP area.
How late can frost come in Delanson?
In half of years the last 32°F night comes after May 7; in one year in ten it comes after May 23. Waiting until May 23 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
- Schoharie, NY10 miles from this station, 47.9°F a year
- Cobleskill, NY16 miles from this station, 45.6°F a year
- Albany, NY19 miles from this station, 49.4°F a year
- Alcove Dam, NY24 miles from this station, 46.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made