Rome, New York climate: Normal weather by month, frost dates and records
Rome's normal year runs from 13°F January nights to 81°F July afternoons, with 43.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.1°C, January lows of −11°C, July highs of 27°C, 1,113 mm of precipitation a year.
- NOAA stationRome Griffiss Airfield
- Station IDUSW00064775
- Location43.23°N 75.41°W
- Elevation519 ft (158 m)
- From the center4 miles
- Population31,990
On October 14, the normal high in Rome is 60°F and the normal low 41°F, and the chance of measurable rain or snow is 53%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Rome.
- Jan 30° 13°
- Feb 32° 13°
- Mar 41° 23°
- Apr 55° 34°
- May 69° 45°
- Jun 76° 55°
- Jul 81° 60°
- Aug 79° 58°
- Sep 72° 51°
- Oct 59° 41°
- Nov 47° 31°
- Dec 36° 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 Rome each month?
July is the warmest month, with normal highs of 81°F; January the coldest, with normal lows of 13°F. The most precipitation falls in October (4.67 in), the least in February (2.37 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 30°F | 13°F | 21.5°F | 2.50 | 13 | <1 | 28 | 9 h 20 min |
| February | 32°F | 13°F | 22.5°F | 2.37 | 14 | <1 | 27 | 10 h 30 min |
| March | 41°F | 23°F | 31.7°F | 3.43 | 13 | <1 | 25 | 11 h 50 min |
| April | 55°F | 34°F | 44.5°F | 3.72 | 16 | <1 | 14 | 13 h 20 min |
| May | 69°F | 45°F | 56.8°F | 4.46 | 15 | <1 | 2 | 14 h 40 min |
| June | 76°F | 55°F | 65.3°F | 4.20 | 14 | 2 | <1 | 15 h 20 min |
| July | 81°F | 60°F | 70.2°F | 4.25 | 13 | 3 | <1 | 15 h 10 min |
| August | 79°F | 58°F | 68.7°F | 3.60 | 14 | 1 | <1 | 14 h |
| September | 72°F | 51°F | 61.4°F | 3.95 | 13 | 1 | <1 | 12 h 30 min |
| October | 59°F | 41°F | 49.7°F | 4.67 | 17 | <1 | 5 | 11 h 10 min |
| November | 47°F | 31°F | 39.0°F | 3.72 | 16 | <1 | 19 | 9 h 50 min |
| December | 36°F | 21°F | 28.3°F | 2.95 | 17 | <1 | 27 | 9 h |
| Year (annual) | 56°F | 37°F | 46.6°F | 43.82 | 175 | 7 | 147 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −1°C | −11°C | −5.8°C | 64 mm |
| February | 0°C | −10°C | −5.3°C | 60 mm |
| March | 5°C | −5°C | −0.2°C | 87 mm |
| April | 13°C | 1°C | 6.9°C | 94 mm |
| May | 21°C | 7°C | 13.8°C | 113 mm |
| June | 25°C | 13°C | 18.5°C | 107 mm |
| July | 27°C | 15°C | 21.2°C | 108 mm |
| August | 26°C | 15°C | 20.4°C | 91 mm |
| September | 22°C | 11°C | 16.3°C | 100 mm |
| October | 15°C | 5°C | 9.8°C | 119 mm |
| November | 8°C | 0°C | 3.9°C | 94 mm |
| December | 2°C | −6°C | −2.1°C | 75 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Boonville (14 miles away), gets 164 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00064775; 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 Rome?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, July 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 USW00064775.
When is the last frost in Rome?
In Rome, the last spring frost (32°F) comes after May 6 in half of years and after May 20 in one year in ten; the first autumn frost comes before October 13 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 61 year in 10 after May 20; 9 in 10 after April 22
- First autumn frost, half of years before
- October 131 year in 10 before September 29; 9 in 10 before October 30
NOAA puts the median frost-free season at 157 days, and the season without a hard freeze (28°F) at 182 days.
A hard freeze (28°F) comes after April 26 in half of springs and before October 27 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Rome in zone 5b across its 3 ZIP code areas (5b in 13440, the largest).
Frost dates for every NOAA station in New York · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00064775; 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.
What hardiness zone is each Rome ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Rome's 3 ZIP code areas are all in zone 5b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Rome?
In a normal year in Rome, 7 days a year reach 90°F, 147 nights fall to 32°F or colder and 175 days bring measurable precipitation.
- Days at 90°F or more
- 7a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 147a normal year
- Days that stay below freezing
- 52high of 32°F or less
- Days with 0.01 inch of precipitation
- 175a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USW00064775.
How sunny is Rome?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Rome, 3.6 kWh per square metre a day. August is the sunniest month (76%) and December the cloudiest (49%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 54% | 1.4 |
| February | 59% | 2.2 |
| March | 65% | 3.5 |
| April | 65% | 4.5 |
| May | 69% | 5.4 |
| June | 71% | 5.8 |
| July | 76% | 5.9 |
| August | 76% | 5.2 |
| September | 74% | 4.1 |
| October | 61% | 2.5 |
| November | 58% | 1.6 |
| December | 49% | 1.0 |
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 Rome need?
A normal year in Rome brings 7,124 heating degree days, 33% more than the median U.S. place (5,373), and 473 cooling degree days, 48% 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 2,432 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,348 | 0 |
| February | 1,190 | 0 |
| March | 1,031 | 0 |
| April | 617 | 2 |
| May | 278 | 24 |
| June | 71 | 81 |
| July | 13 | 174 |
| August | 23 | 138 |
| September | 158 | 51 |
| October | 477 | 3 |
| November | 780 | 0 |
| December | 1,138 | 0 |
| Year (annual) | 7,124 | 473 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00064775. 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 Rome been warmer than normal lately?
2024 averaged 49.5°F, 2.9°F above the 1991-2020 normal of 46.6°F. 3 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 49.0°F | +2.4°F | 47.72 |
| 2023 | 48.4°F | +1.8°F | 43.44 |
| 2024 | 49.5°F | +2.9°F | 43.61 |
Source: observed years: ACIS, station USW00064775. A year counts only with all twelve months complete.
How does Rome's climate compare?
Rome is warmer than 53 of the other 130 places with their own NOAA record in New York, and wetter than 66. 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, Rome 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 Rome share this climate record?
3 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.
- Lake Delta, NY3,005 people · 5 mi NW
- Stittville, NY260 people · 6 mi E
- Westernville, NY193 people · 5 mi N
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 Rome's climate
What is the coldest month in Rome?
January, with a normal high of 30°F and a normal low of 13°F. The warmest is July (81°F by day, 60°F at night).
Does it snow in Rome?
Yes. NOAA publishes no 1991-2020 snowfall normal for Rome's NOAA station; the nearest record that keeps one, Boonville (14 miles away), records 164 inches of snow in a normal year.
What is the rainiest month in Rome?
October, with 4.67 in of precipitation in a normal year; the driest is February with 2.37 in.
What plant hardiness zone is Rome in?
The USDA's 2023 map puts Rome in zone 5b across its 3 ZIP code areas (5b in 13440, the largest).
How late can frost come in Rome?
In half of years the last 32°F night comes after May 6; in one year in ten it comes after May 20. Waiting until May 20 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Rome in OctoberThis month day by day, its records and recent years
- New York climateThe statewide normals and every place in the state
- Utica, NY6 miles from this station, 46.7°F a year
- Trenton Falls, NY13 miles from this station, 45.4°F a year
- Boonville, NY14 miles from this station, 42.0°F a year
- Camden, NY22 miles from this station, 45.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made