Winter nights in Jefferson Heights are colder than in 77% of U.S. towns
High summer brings afternoon highs near 85°. Since 1901–2000, the year has warmed by 1.7°, most of all in December. Central heating does most of its work from November to April, in months below 50° on average.
A year in Jefferson Heights at a glance
Each month’s typical high and low, and what it brings.
What stands out about Jefferson Heights’ climate
Compared with towns across the U.S., with Jefferson Heights’ place in New York beside it.
What a year in Jefferson Heights feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 176 frost-free days a year
In half of years the last 32° night comes by April 25 and the first by October 18. Frost and day counts come from NOAA’s station at Hudson Correctional Facility, NY, 4 miles from the town’s center, 130 ft lower.
The 2023 USDA map puts Jefferson Heights’ center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −6°. 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 31 inches of snow a winter
Snow, measured at Hudson Correctional Facility, NY, falls mostly in January, February and December. Precipitation (rain plus melted snow) adds up to 43 inches a year; October is the wettest month and February the driest. Rain or snow falls on about 116 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Jefferson Heights
88% 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 Hudson Correctional Facility, NY.
Living with Jefferson Heights’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
176 frost-free days in zone 6a. The last frost comes by Apr 25 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 18.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October. 1.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Jefferson Heights from natural hazards, river flooding is the largest share (65%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Jefferson Heights and its neighbors
Every town next door is within a degree of Jefferson Heights in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Jefferson Heights’, 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 |
|---|---|---|---|---|
| Jefferson Heights, NY | 17° | 85° | 43" | 31" |
| Bloomsburg, PA | 19° | 84° | 43" | 29" |
| Manteno, IL | 17° | 84° | 40" | 29" |
| Hartford City, IN | 19° | 84° | 41" | 32" |
| Pataskala, OH | 20° | 84° | 43" | 28" |
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 Jefferson Heights averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.5°).
A bigger shift than in 71% 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 Jefferson Heights compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Jefferson Heights’ place among New York’s.
Jefferson Heights weather by month
Highs, lows and precipitation from NOAA’s grid at Jefferson Heights’ center; snow, wet days and snow on the ground from Hudson Correctional Facility, NY. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 35° | 17° | 2.8" | 8.2" | 8 | 5 | 15° – 33° |
| February | 38° | 19° | 2.6" | 8.5" | 8 | 9 | 14° – 35° |
| March | 47° | 27° | 3.2" | 4.4" | 8 | 5 | 30° – 48° |
| April | 61° | 37° | 3.4" | 0.3" | 10 | 0 | 43° – 54° |
| May | 72° | 48° | 3.5" | 0.0" | 12 | 0 | 55° – 66° |
| June | 80° | 57° | 4.4" | 0.0" | 11 | 0 | 66° – 73° |
| July | 85° | 62° | 3.8" | 0.0" | 11 | 0 | 69° – 77° |
| August | 83° | 60° | 4.2" | 0.0" | 10 | 0 | 68° – 74° |
| September | 75° | 53° | 4.2" | 0.0" | 9 | 0 | 61° – 69° |
| October | 63° | 42° | 4.4" | 0.0" | 10 | 0 | 48° – 59° |
| November | 50° | 32° | 3.1" | 0.5" | 9 | 0 | 37° – 46° |
| December | 40° | 24° | 3.5" | 9.1" | 9 | 6 | 25° – 43° |
| Year | 61° | 40° | 43.1" | 31.0" | 116 | 26 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 14° to 35°. August is the most reliable, staying within 6°.
Where Jefferson Heights’ 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 Jefferson Heights’ center.
- Snow: Hudson Correctional Facility, NY.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Hudson Correctional Facility, NY, 4 miles from the town’s center, 130 ft lower; 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 Jefferson Heights’ climate
What is the weather like in Jefferson Heights?
A typical July afternoon reaches 85°, a January night drops to 17°, and about 31 inches of snow falls in a normal winter. Colder January nights than 77% of U.S. towns; cooler July afternoons than 51% of U.S. towns.
How cold does it get in Jefferson Heights in winter?
January nights average 17°. About 127 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 15°.
How much snow does Jefferson Heights get?
About 31 inches in a normal winter at Hudson Correctional Facility, NY, most of it in January, February and December, with snow on the ground about 26 days a year.
How hot does it get in Jefferson Heights?
July, with a typical high of 85° and a low of 62°. About 15 days a year reach 90° (Hudson Correctional Facility, NY).
When is the first and last frost in Jefferson Heights?
In half of years the last spring frost (32°) comes by April 25 and the first fall frost by October 18, about 176 frost-free days, at Hudson Correctional Facility, NY.
What growing zone is Jefferson Heights in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −6°.
What is the best time of year to visit Jefferson Heights?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Jefferson Heights getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 71% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Jefferson Heights.
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.