Addison, New York climate: Normal weather by month, frost dates and records
Addison's normal year runs from 14°F January nights to 82°F July afternoons, with 36.0 inches of precipitation and 48 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.1°C, January lows of −10°C, July highs of 28°C, 916 mm of precipitation a year.
- NOAA stationAddison
- Station IDUSC00300023
- Location42.10°N 77.23°W
- Elevation999 ft (305 m)
- Population1,558
On October 22, the normal high in Addison is 59°F and the normal low 35°F, and the chance of measurable rain or snow is 47%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Addison.
- Jan 33° 14°
- Feb 36° 14°
- Mar 44° 21°
- Apr 58° 31°
- May 70° 41°
- Jun 78° 51°
- Jul 82° 56°
- Aug 81° 55°
- Sep 74° 47°
- Oct 62° 37°
- Nov 49° 28°
- Dec 38° 21°
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 Addison each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 14°F. The most precipitation falls in July (4.22 in), the least in February (1.61 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 33°F | 14°F | 23.5°F | 1.80 | 13.3 | 14 | <1 | 29 | 9 h 30 min |
| February | 36°F | 14°F | 25.0°F | 1.61 | 11.8 | 11 | <1 | 27 | 10 h 30 min |
| March | 44°F | 21°F | 32.5°F | 2.52 | 9.6 | 14 | <1 | 26 | 11 h 50 min |
| April | 58°F | 31°F | 44.3°F | 3.34 | 1.0 | 14 | <1 | 18 | 13 h 20 min |
| May | 70°F | 41°F | 55.5°F | 3.55 | 0.1 | 15 | <1 | 5 | 14 h 30 min |
| June | 78°F | 51°F | 64.6°F | 3.19 | 0.0 | 14 | 2 | <1 | 15 h 10 min |
| July | 82°F | 56°F | 69.1°F | 4.22 | 0.0 | 12 | 4 | <1 | 15 h |
| August | 81°F | 55°F | 67.8°F | 3.55 | 0.0 | 12 | 2 | <1 | 14 h |
| September | 74°F | 47°F | 60.5°F | 3.66 | 0.0 | 11 | 1 | <1 | 12 h 30 min |
| October | 62°F | 37°F | 49.2°F | 3.81 | 0.3 | 15 | <1 | 10 | 11 h 10 min |
| November | 49°F | 28°F | 38.2°F | 2.54 | 2.1 | 14 | <1 | 22 | 9 h 50 min |
| December | 38°F | 21°F | 29.5°F | 2.26 | 10.0 | 15 | <1 | 27 | 9 h 10 min |
| Year (annual) | 59°F | 35°F | 46.6°F | 36.05 | 48.2 | 161 | 9 | 165 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −10°C | −4.7°C | 46 mm | 34 cm |
| February | 2°C | −10°C | −3.9°C | 41 mm | 30 cm |
| March | 7°C | −6°C | 0.3°C | 64 mm | 24 cm |
| April | 14°C | 0°C | 6.8°C | 85 mm | 3 cm |
| May | 21°C | 5°C | 13.1°C | 90 mm | 0 cm |
| June | 26°C | 11°C | 18.1°C | 81 mm | 0 cm |
| July | 28°C | 13°C | 20.6°C | 107 mm | 0 cm |
| August | 27°C | 13°C | 19.9°C | 90 mm | 0 cm |
| September | 23°C | 9°C | 15.8°C | 93 mm | 0 cm |
| October | 16°C | 3°C | 9.6°C | 97 mm | 1 cm |
| November | 9°C | −2°C | 3.4°C | 65 mm | 5 cm |
| December | 3°C | −6°C | −1.4°C | 57 mm | 25 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00300023; 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 Addison?
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 (11).
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 USC00300023.
When is the last frost in Addison?
In Addison, the last spring frost (32°F) comes after May 14 in half of years and after May 28 in one year in ten; the first autumn frost comes before October 5 in half of years and before September 23 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 141 year in 10 after May 28; 9 in 10 after April 28
- First autumn frost, half of years before
- October 51 year in 10 before September 23; 9 in 10 before October 21
NOAA puts the median frost-free season at 144 days, and the season without a hard freeze (28°F) at 167 days.
A hard freeze (28°F) comes after May 3 in half of springs and before October 19 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Addison in zone 5b in ZIP code 14801, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Addison's NOAA station is in zone 6a: the coldest night of a typical year reaches −9°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 USC00300023; 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 Addison?
In a normal year in Addison, 9 days a year reach 90°F, 165 nights fall to 32°F or colder and 161 days bring measurable precipitation.
- 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
- 165a normal year
- Days that stay below freezing
- 39high of 32°F or less
- Days with 0.01 inch of precipitation
- 161a normal year
- Days with 1 inch of snow or more
- 21a normal year
The highest temperature in this station's record (since 1893) is 106°F, on July 4, 1911; the lowest is −35°F, on January 5, 1904.
The wettest calendar year on that record is 1946, with 44.18 in; the snowiest season is 1970–71, with 99.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00300023; records: ACIS (NOAA Regional Climate Centers), station USC00300023. Records use complete months only; a month missing more than three days is left out.
How sunny is Addison?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Addison, 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 Addison need?
A normal year in Addison brings 7,053 heating degree days, 31% more than the median U.S. place (5,373), and 395 cooling degree days, 56% 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 2,277 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,288 | 0 |
| February | 1,121 | 0 |
| March | 1,006 | 0 |
| April | 622 | 1 |
| May | 315 | 19 |
| June | 86 | 74 |
| July | 20 | 147 |
| August | 31 | 117 |
| September | 168 | 34 |
| October | 491 | 3 |
| November | 805 | 0 |
| December | 1,101 | 0 |
| Year (annual) | 7,053 | 395 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00300023. 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 Addison's climate compare?
Addison is warmer than 53 of the other 130 places with their own NOAA record in New York, and wetter than 15. Across the 7,247 U.S. stations with normals, its annual mean of 46.6°F is warmer than 26%.
In the Köppen classification computed from these normals, Addison 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 Addison share this climate record?
5 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.
- Elkland, PA1,788 people · 9 mi SW
- Westfield, PA1,099 people · 20 mi SW
- Lawrenceville, PA698 people · 9 mi SE
- Knoxville, PA668 people · 14 mi SW
- Sabinsville, PA112 people · 22 mi SW
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 Addison's climate
What is the coldest month in Addison?
January, with a normal high of 33°F and a normal low of 14°F. The warmest is July (82°F by day, 56°F at night).
Does it snow in Addison?
Yes: 48 inches in a normal year, falling on 35 days with 0.1 inch or more, the most in January (13.3 inches).
What is the rainiest month in Addison?
July, with 4.22 in of precipitation in a normal year; the driest is February with 1.61 in.
What plant hardiness zone is Addison in?
The USDA's 2023 map puts Addison in zone 5b in ZIP code 14801, the nearest ZIP area. By the same method at Addison's NOAA station, the coldest night of a typical year reaches −9°F (16 years, 1991-2020): zone 6a.
How late can frost come in Addison?
In half of years the last 32°F night comes after May 14; in one year in ten it comes after May 28. Waiting until May 28 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
- Cowanesque Dam, PA9 miles from this station, 47.0°F a year
- Corning, NY9 miles from this station, 44.6°F a year
- Tioga, PA15 miles from this station, 47.1°F a year
- Elmira, NY18 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