Photo: Doug Kerr from Albany, NY, United States · CC BY-SA 2.0Weather without surprises: New Windsor keeps close to the norm for U.S. towns
January mornings start at about 23°. Since 1901–2000, the year has warmed by 1.5°, most of all in December. Homes need heating from November to March, the months averaging under 50°.
A year in New Windsor at a glance
Each month’s typical high and low, and what it brings.
What stands out about New Windsor’s climate
Compared with towns across the U.S., with New Windsor’s place in Maryland beside it.
What a year in New Windsor feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 179 frost-free days a year
In half of years the last 32° night comes by April 22 and the first by October 20. Frost and day counts come from NOAA’s station at Emmitsburg 2 Se, MD, 13 miles from the town’s center, 140 ft lower.
The 2023 USDA map puts New Windsor’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 3°. 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 28 inches of snow a winter
Snow, measured at Emmitsburg 2 Se, MD, is heaviest from January through February, about 9 inches a month. Precipitation (rain plus melted snow) adds up to 44 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 117 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in New Windsor
85% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from November 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 Emmitsburg 2 Se, MD.
Living with New Windsor’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
179 frost-free days in zone 7a. The last frost comes by Apr 22 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 20.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 0.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in New Windsor from natural hazards, river flooding is the largest share (59%); heat waves, cold waves, winter storms and ice storms together are 8%. Normals are averages; the hazards page covers the extremes.
Natural hazards →New Windsor and similar climates
TownRatings has no climate map of the towns around New Windsor yet.
Climates most like New Windsor’s, 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 |
|---|---|---|---|---|
| New Windsor, MD | 23° | 87° | 44" | 28" |
| Newport, KY | 24° | 86° | 45" | 23" |
| Forestville, OH | 23° | 86° | 45" | 23" |
| Lawrenceburg, IN | 23° | 86° | 45" | 23" |
| Yorketown, NJ | 23° | 87° | 47" | 29" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in New Windsor averaged 1.5° warmer than the 1900s. The biggest change is in December (+2.8°).
A bigger shift than in 61% 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 New Windsor compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with New Windsor’s place among Maryland’s.
New Windsor weather by month
Highs, lows and precipitation from NOAA’s grid at New Windsor’s center; snow, wet days and snow on the ground from Emmitsburg 2 Se, MD. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 40° | 23° | 3.1" | 8.7" | 9 | 6 | 22° – 39° |
| February | 44° | 24° | 2.5" | 8.8" | 8 | 8 | 23° – 42° |
| March | 52° | 31° | 3.7" | 4.4" | 10 | 3 | 35° – 51° |
| April | 64° | 41° | 3.5" | 0.2" | 11 | 0 | 49° – 58° |
| May | 74° | 51° | 4.0" | 0.0" | 13 | 0 | 57° – 68° |
| June | 82° | 60° | 4.1" | 0.0" | 11 | 0 | 67° – 74° |
| July | 87° | 64° | 4.4" | 0.0" | 11 | 0 | 71° – 79° |
| August | 84° | 63° | 3.6" | 0.0" | 10 | 0 | 70° – 77° |
| September | 78° | 56° | 4.7" | 0.0" | 9 | 0 | 64° – 71° |
| October | 66° | 44° | 3.9" | 0.1" | 9 | 0 | 52° – 62° |
| November | 54° | 34° | 3.2" | 0.8" | 8 | 0 | 38° – 49° |
| December | 44° | 27° | 3.6" | 4.5" | 9 | 3 | 27° – 46° |
| Year | 64° | 43° | 44.2" | 27.5" | 117 | 21 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 27° to 46°. August is the most reliable, staying within 7°.
Where New Windsor’s 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 New Windsor’s center.
- Snow: Emmitsburg 2 Se, MD.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Emmitsburg 2 Se, MD, 13 miles from the town’s center, 140 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 New Windsor’s climate
What is the weather like in New Windsor?
A typical July afternoon reaches 87°, a January night drops to 23°, and about 28 inches of snow falls in a normal winter. Milder January nights than 54% of U.S. towns; hotter July afternoons than 59% of U.S. towns.
How cold does it get in New Windsor in winter?
January nights average 23°. About 114 nights a year reach 32° or below and 1 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does New Windsor get?
About 28 inches in a normal winter at Emmitsburg 2 Se, MD, heaviest from January through February, about 9 inches a month, with snow on the ground about 21 days a year.
How hot does it get in New Windsor?
July, with a typical high of 87° and a low of 64°. About 18 days a year reach 90° (Emmitsburg 2 Se, MD).
When is the first and last frost in New Windsor?
In half of years the last spring frost (32°) comes by April 22 and the first fall frost by October 20, about 179 frost-free days, at Emmitsburg 2 Se, MD.
What growing zone is New Windsor in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 3°.
What is the best time of year to visit New Windsor?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is New Windsor getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 61% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in New Windsor.
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.