Wellsville, New York climate: Normal weather by month, frost dates and records
Wellsville's normal year runs from 17°F January nights to 78°F July afternoons, with 37.2 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.0°C, January lows of −8°C, July highs of 26°C, 945 mm of precipitation a year.
- NOAA stationWellsville Municipal Airport
- Station IDUSW00054757
- Location42.11°N 77.99°W
- Elevation2,124 ft (647 m)
- Population4,551
On October 23, the normal high in Wellsville is 54°F and the normal low 39°F, and the chance of measurable rain or snow is 49%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Wellsville.
- Jan 29° 17°
- Feb 32° 19°
- Mar 41° 25°
- Apr 54° 35°
- May 66° 46°
- Jun 73° 55°
- Jul 78° 59°
- Aug 76° 58°
- Sep 69° 51°
- Oct 57° 41°
- Nov 45° 32°
- Dec 34° 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 Wellsville each month?
July is the warmest month, with normal highs of 78°F; January the coldest, with normal lows of 17°F. The most precipitation falls in July (4.15 in), the least in February (1.63 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 29°F | 17°F | 23.2°F | 2.11 | 14 | <1 | 28 | 9 h 30 min |
| February | 32°F | 19°F | 25.4°F | 1.63 | 13 | <1 | 26 | 10 h 30 min |
| March | 41°F | 25°F | 32.9°F | 2.45 | 14 | <1 | 24 | 11 h 50 min |
| April | 54°F | 35°F | 44.7°F | 3.49 | 15 | <1 | 14 | 13 h 20 min |
| May | 66°F | 46°F | 55.9°F | 3.28 | 16 | <1 | 2 | 14 h 30 min |
| June | 73°F | 55°F | 63.8°F | 3.92 | 15 | <1 | <1 | 15 h 10 min |
| July | 78°F | 59°F | 68.4°F | 4.15 | 14 | 1 | <1 | 15 h |
| August | 76°F | 58°F | 66.7°F | 3.78 | 14 | <1 | <1 | 14 h |
| September | 69°F | 51°F | 59.7°F | 3.52 | 13 | <1 | <1 | 12 h 30 min |
| October | 57°F | 41°F | 49.1°F | 3.56 | 15 | <1 | 6 | 11 h 10 min |
| November | 45°F | 32°F | 38.4°F | 2.83 | 15 | <1 | 18 | 9 h 50 min |
| December | 34°F | 23°F | 28.7°F | 2.49 | 15 | <1 | 27 | 9 h 10 min |
| Year (annual) | 54°F | 38°F | 46.4°F | 37.21 | 172 | 1 | 145 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −2°C | −8°C | −4.9°C | 54 mm |
| February | 0°C | −7°C | −3.7°C | 41 mm |
| March | 5°C | −4°C | 0.5°C | 62 mm |
| April | 12°C | 2°C | 7.1°C | 89 mm |
| May | 19°C | 8°C | 13.3°C | 83 mm |
| June | 23°C | 13°C | 17.7°C | 100 mm |
| July | 26°C | 15°C | 20.2°C | 105 mm |
| August | 24°C | 14°C | 19.3°C | 96 mm |
| September | 20°C | 11°C | 15.4°C | 89 mm |
| October | 14°C | 5°C | 9.5°C | 90 mm |
| November | 7°C | 0°C | 3.6°C | 72 mm |
| December | 1°C | −5°C | −1.8°C | 63 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. Wellsville's own co-op station Wellsville station does: 54 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USW00054757; 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 Wellsville?
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 (13).
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 USW00054757.
When is the last frost in Wellsville?
In Wellsville, the last spring frost (32°F) comes after May 4 in half of years and after May 21 in one year in ten; the first autumn frost comes before October 14 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
- May 41 year in 10 after May 21; 9 in 10 after April 20
- First autumn frost, half of years before
- October 141 year in 10 before September 29; 9 in 10 before November 1
NOAA puts the median frost-free season at 163 days, and the season without a hard freeze (28°F) at 187 days.
A hard freeze (28°F) comes after April 24 in half of springs and before October 31 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wellsville in zone 5b in ZIP code 14895, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Wellsville's NOAA station is in zone 6a: the coldest night of a typical year reaches −6°F (19 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 USW00054757; 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 Wellsville?
In a normal year in Wellsville, 1 day a year reaches 90°F, 145 nights fall to 32°F or colder and 172 days bring measurable precipitation.
- Days at 90°F or more
- 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 145a normal year
- Days that stay below freezing
- 62high of 32°F or less
- Days with 0.01 inch of precipitation
- 172a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USW00054757.
How sunny is Wellsville?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Wellsville, 3.6 kWh per square metre a day. August is the sunniest month (76%) and December the cloudiest (50%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 52% | 1.4 |
| February | 58% | 2.2 |
| March | 62% | 3.4 |
| April | 65% | 4.5 |
| May | 69% | 5.4 |
| June | 72% | 5.9 |
| July | 76% | 5.9 |
| August | 76% | 5.2 |
| September | 74% | 4.2 |
| October | 62% | 2.6 |
| November | 59% | 1.7 |
| December | 50% | 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 Wellsville need?
A normal year in Wellsville brings 7,102 heating degree days, 32% more than the median U.S. place (5,373), and 358 cooling degree days, 61% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,229 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,296 | 0 |
| February | 1,110 | 0 |
| March | 994 | 0 |
| April | 612 | 3 |
| May | 304 | 21 |
| June | 99 | 63 |
| July | 29 | 134 |
| August | 45 | 98 |
| September | 191 | 34 |
| October | 497 | 5 |
| November | 798 | 0 |
| December | 1,127 | 0 |
| Year (annual) | 7,102 | 358 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00054757. 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 Wellsville been warmer than normal lately?
2024 averaged 49.8°F, 3.4°F above the 1991-2020 normal of 46.4°F. 4 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 47.6°F | +1.2°F | 40.95 |
| 2022 | 48.0°F | +1.6°F | 36.46 |
| 2023 | 49.5°F | +3.1°F | 33.79 |
| 2024 | 49.8°F | +3.4°F | 36.95 |
Source: observed years: ACIS, station USW00054757. A year counts only with all twelve months complete.
How does Wellsville's climate compare?
Wellsville is warmer than 51 of the other 130 places with their own NOAA record in New York, and wetter than 22. Across the 7,247 U.S. stations with normals, its annual mean of 46.4°F is warmer than 25%.
In the Köppen classification computed from these normals, Wellsville 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 Wellsville share this climate record?
4 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.
- Shinglehouse, PA1,068 people · 14 mi SW
- Scio, NY641 people · 4 mi N
- Ulysses, PA585 people · 19 mi SE
- Genesee, PA235 people · 10 mi SE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Wellsville's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Wellsville. This page uses Wellsville Municipal Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Wellsville station USC00309072 | 2 mi E | 1,510 ft | 44.9°F | 13°F | 79°F | 39.7 | 54 | May 15 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Wellsville's climate
What is the coldest month in Wellsville?
January, with a normal high of 29°F and a normal low of 17°F. The warmest is July (78°F by day, 59°F at night).
Does it snow in Wellsville?
Yes. NOAA publishes no 1991-2020 snowfall normal for Wellsville's NOAA station; Wellsville's own co-op station Wellsville station records 54 inches of snow in a normal year.
What is the rainiest month in Wellsville?
July, with 4.15 in of precipitation in a normal year; the driest is February with 1.63 in.
What plant hardiness zone is Wellsville in?
The USDA's 2023 map puts Wellsville in zone 5b in ZIP code 14895, the nearest ZIP area. By the same method at Wellsville's NOAA station, the coldest night of a typical year reaches −6°F (19 years, 1991-2020): zone 6a.
How late can frost come in Wellsville?
In half of years the last 32°F night comes after May 4; in one year in ten it comes after May 21. Waiting until May 21 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
- Oswayo, PA13 miles from this station, 44.1°F a year
- Angelica, NY14 miles from this station, 45.8°F a year
- Alfred, NY17 miles from this station, 45.1°F a year
- Hornell, NY22 miles from this station, 45.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made