Photo: Andre Carrotflower · CC BY-SA 4.0Afternoon heat in Romulus trails that of 86% of U.S. towns
January nights here settle around 17°. It is a dry place: less rain and snow fall here than on 73% of U.S. towns. Compared with 1901–2000, the average now sits 1.2° higher. Seedlings are safe outdoors from about May 1, with the first autumn frost due around October 21.
A year in Romulus at a glance
Each month’s typical high and low, and what it brings.
What stands out about Romulus’ climate
Compared with towns across the U.S., with Romulus’ place in New York beside it.
What a year in Romulus feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 172 frost-free days a year
In half of years the last 32° night comes by May 1 and the first by October 21. Frost and day counts come from NOAA’s station at Aurora Rsch Farm, NY, 9 miles from the town’s center, 200 ft higher.
The 2023 USDA map puts Romulus’ center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −5°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 56 inches of snow a winter
Snow, measured at Aurora Rsch Farm, NY, falls mostly in January. Precipitation (rain plus melted snow) adds up to 36 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 156 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Romulus
93% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Aurora Rsch Farm, NY.
Living with Romulus’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
172 frost-free days in zone 6b. The last frost comes by May 1 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 21.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 4.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Romulus from natural hazards, river flooding is the largest share (73%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Romulus and its neighbors
Ovid has the coldest January nights next door (16°, 1° colder) and Torrey the hottest July afternoons (82°, 1° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Romulus’, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Romulus, NY | 17° | 81° | 36" | 56" |
| Oak Creek, WI | 16° | 81° | 34" | 49" |
| Lansing, MI | 16° | 82° | 35" | 50" |
| Michigan City, IN | 19° | 82° | 39" | 65" |
| Park City, IL | 16° | 82° | 37" | 43" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Romulus averaged 1.2° warmer than the 1900s. The biggest change is in February (+2.6°).
A smaller shift than in 65% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Romulus compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Romulus’ place among New York’s.
Romulus weather by month
Highs, lows and precipitation from NOAA’s grid at Romulus’ center; snow, wet days and snow on the ground from Aurora Rsch Farm, NY. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 32° | 17° | 2.1" | 15.0" | 14 | 14° – 34° |
| February | 35° | 19° | 1.9" | 12.7" | 11 | 12° – 35° |
| March | 43° | 25° | 2.5" | 11.8" | 13 | 26° – 46° |
| April | 56° | 35° | 3.0" | 2.1" | 14 | 39° – 51° |
| May | 69° | 47° | 3.2" | 0.1" | 13 | 51° – 63° |
| June | 77° | 56° | 3.7" | 0.0" | 13 | 64° – 71° |
| July | 81° | 61° | 3.9" | 0.0" | 12 | 67° – 75° |
| August | 80° | 59° | 3.4" | 0.0" | 11 | 67° – 74° |
| September | 73° | 52° | 3.6" | 0.0" | 12 | 60° – 67° |
| October | 60° | 42° | 3.6" | 0.2" | 15 | 47° – 57° |
| November | 48° | 33° | 2.6" | 3.8" | 13 | 35° – 46° |
| December | 37° | 24° | 2.6" | 10.5" | 14 | 23° – 41° |
| Year | 58° | 39° | 36.3" | 56.2" | 156 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 12° to 35°. August is the most reliable, staying within 7°.
Where Romulus’ numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Romulus’ center.
- Snow: Aurora Rsch Farm, NY.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Aurora Rsch Farm, NY, 9 miles from the town’s center, 200 ft higher; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Romulus’ climate
What is the weather like in Romulus?
A typical July afternoon reaches 81°, a January night drops to 17°, and about 56 inches of snow falls in a normal winter. Colder January nights than 73% of U.S. towns; cooler July afternoons than 86% of U.S. towns.
How cold does it get in Romulus in winter?
January nights average 17°. About 131 nights a year reach 32° or below and 6 reach 0° or below. In the coldest January of the last 30 years the month averaged 14°.
How much snow does Romulus get?
About 56 inches in a normal winter at Aurora Rsch Farm, NY, most of it in January.
How hot does it get in Romulus?
July, with a typical high of 81° and a low of 61°. About 7 days a year reach 90° (Aurora Rsch Farm, NY).
When is the first and last frost in Romulus?
In half of years the last spring frost (32°) comes by May 1 and the first fall frost by October 21, about 172 frost-free days, at Aurora Rsch Farm, NY.
What growing zone is Romulus in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −5°.
What is the best time of year to visit Romulus?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Romulus getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 65% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Romulus.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.