Epworth Hall · Photo: Pubdog · Public domainSummers in Castile are cooler than in 94% of U.S. towns
On a normal January night the air cools to about 15°. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 64° apart. In January, nights here are colder than in 83% of U.S. towns. Homes need heating from October to April, the months averaging under 50°.
A year in Castile at a glance
Each month’s typical high and low, and what it brings.
What stands out about Castile’s climate
Compared with towns across the U.S., with Castile’s place in New York beside it.
What a year in Castile feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 156 frost-free days a year
In half of years the last 32° night comes by May 7 and the first by October 10. Frost and day counts come from NOAA’s station at Warsaw 6 Sw, NY, 10 miles from the town’s center, 450 ft higher.
The 2023 USDA map puts Castile’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −9°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 70 inches of snow a winter
Snow, measured at Portageville, NY, falls mostly in January. Precipitation (rain plus melted snow) adds up to 37 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 151 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Castile
96% 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 Warsaw 6 Sw, NY.
Living with Castile’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
156 frost-free days in zone 6a. The last frost comes by May 7 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 10.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 12 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Castile from natural hazards, river flooding is the largest share (74%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Castile and its neighbors
Gainesville has the coldest January nights next door (14°, 1° colder) and Leicester the hottest July afternoons (82°, 2° 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 Castile’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 |
|---|---|---|---|---|
| Castile, NY | 15° | 79° | 37" | 70" |
| Cadillac, MI | 12° | 80° | 35" | 74" |
| St. Francis, WI | 16° | 80° | 34" | 49" |
| Bennington, VT | 13° | 81° | 42" | 75" |
| Michigan City, IN | 19° | 82° | 39" | 65" |
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 Castile averaged 1.3° warmer than the 1900s. The biggest change is in December (+3.0°).
A smaller shift than in 51% 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 Castile compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Castile’s place among New York’s.
Castile weather by month
Highs, lows and precipitation from NOAA’s grid at Castile’s center; snow, wet days and snow on the ground from Portageville, NY. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 31° | 15° | 2.3" | 18.6" | 14 | 22 | 13° – 33° |
| February | 34° | 17° | 1.9" | 14.2" | 11 | 18 | 10° – 33° |
| March | 42° | 23° | 2.4" | 12.9" | 11 | 12 | 25° – 46° |
| April | 56° | 34° | 3.0" | 1.2" | 13 | 1 | 38° – 51° |
| May | 68° | 45° | 3.4" | 0.0" | 13 | 0 | 50° – 63° |
| June | 76° | 54° | 3.8" | 0.0" | 13 | 0 | 60° – 69° |
| July | 79° | 59° | 3.9" | 0.0" | 12 | 0 | 64° – 73° |
| August | 78° | 57° | 3.8" | 0.0" | 11 | 0 | 63° – 72° |
| September | 71° | 50° | 3.4" | 0.0" | 12 | 0 | 57° – 65° |
| October | 60° | 40° | 3.8" | 0.2" | 14 | 0 | 45° – 56° |
| November | 47° | 31° | 2.8" | 6.8" | 13 | 5 | 33° – 45° |
| December | 36° | 22° | 2.6" | 16.2" | 14 | 15 | 20° – 41° |
| Year | 56° | 37° | 37.1" | 70.1" | 151 | 72 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 10° to 33°. September is the most reliable, staying within 8°.
Where Castile’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 Castile’s center.
- Snow: Portageville, NY.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Warsaw 6 Sw, NY, 10 miles from the town’s center, 450 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 Castile’s climate
What is the weather like in Castile?
A typical July afternoon reaches 79°, a January night drops to 15°, and about 70 inches of snow falls in a normal winter. Colder January nights than 83% of U.S. towns; cooler July afternoons than 94% of U.S. towns.
How cold does it get in Castile in winter?
January nights average 15°. About 157 nights a year reach 32° or below and 11 reach 0° or below. In the coldest January of the last 30 years the month averaged 13°.
How much snow does Castile get?
About 70 inches in a normal winter at Portageville, NY, most of it in January, with snow on the ground about 72 days a year.
How hot does it get in Castile?
July, with a typical high of 79°. 90° days are rare: none in a normal year at Warsaw 6 Sw, NY.
When is the first and last frost in Castile?
In half of years the last spring frost (32°) comes by May 7 and the first fall frost by October 10, about 156 frost-free days, at Warsaw 6 Sw, NY.
What growing zone is Castile in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −9°.
What is the best time of year to visit Castile?
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 Castile getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 51% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Castile.
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.