Boonville, New York climate: Normal weather by month, frost dates and records
Boonville's normal year runs from 8°F January nights to 75°F July afternoons, with 58.2 inches of precipitation and 164 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.6°C, January lows of −13°C, July highs of 24°C, 1,477 mm of precipitation a year.
- NOAA stationBoonville (4 mi SSW)
- Station IDUSC00300785
- Location43.44°N 75.37°W
- Elevation1,550 ft (472 m)
- From the center4 miles
- Population2,005
On October 23, the normal high in Boonville is 51°F and the normal low 34°F, and the chance of measurable rain or snow is 52%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Boonville.
- Jan 25° 8°
- Feb 27° 9°
- Mar 36° 18°
- Apr 50° 30°
- May 63° 43°
- Jun 71° 52°
- Jul 75° 56°
- Aug 74° 55°
- Sep 67° 48°
- Oct 54° 37°
- Nov 41° 26°
- Dec 30° 16°
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 Boonville each month?
July is the warmest month, with normal highs of 75°F; January the coldest, with normal lows of 8°F. The most precipitation falls in October (6.11 in), the least in February (3.97 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 25°F | 8°F | 16.4°F | 4.92 | 39.7 | 20 | <1 | 30 | 9 h 20 min |
| February | 27°F | 9°F | 18.3°F | 3.97 | 39.2 | 16 | <1 | 27 | 10 h 30 min |
| March | 36°F | 18°F | 26.6°F | 4.15 | 26.7 | 15 | <1 | 28 | 11 h 50 min |
| April | 50°F | 30°F | 39.9°F | 4.56 | 6.2 | 14 | <1 | 19 | 13 h 20 min |
| May | 63°F | 43°F | 52.8°F | 4.64 | 0.2 | 14 | <1 | 3 | 14 h 40 min |
| June | 71°F | 52°F | 61.3°F | 5.27 | 0.0 | 14 | <1 | <1 | 15 h 20 min |
| July | 75°F | 56°F | 65.5°F | 4.60 | 0.0 | 13 | <1 | <1 | 15 h 10 min |
| August | 74°F | 55°F | 64.4°F | 4.69 | 0.0 | 13 | <1 | <1 | 14 h |
| September | 67°F | 48°F | 57.2°F | 4.94 | 0.0 | 13 | <1 | 1 | 12 h 30 min |
| October | 54°F | 37°F | 45.3°F | 6.11 | 1.4 | 16 | <1 | 10 | 11 h 10 min |
| November | 41°F | 26°F | 33.7°F | 5.04 | 15.5 | 16 | <1 | 23 | 9 h 40 min |
| December | 30°F | 16°F | 23.1°F | 5.27 | 35.1 | 19 | <1 | 29 | 9 h |
| Year (annual) | 51°F | 33°F | 42.0°F | 58.16 | 164.0 | 181 | <1 | 170 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −4°C | −13°C | −8.7°C | 125 mm | 101 cm |
| February | −3°C | −13°C | −7.6°C | 101 mm | 100 cm |
| March | 2°C | −8°C | −3.0°C | 105 mm | 68 cm |
| April | 10°C | −1°C | 4.4°C | 116 mm | 16 cm |
| May | 17°C | 6°C | 11.6°C | 118 mm | 1 cm |
| June | 22°C | 11°C | 16.3°C | 134 mm | 0 cm |
| July | 24°C | 13°C | 18.6°C | 117 mm | 0 cm |
| August | 23°C | 13°C | 18.0°C | 119 mm | 0 cm |
| September | 19°C | 9°C | 14.0°C | 125 mm | 0 cm |
| October | 12°C | 3°C | 7.4°C | 155 mm | 4 cm |
| November | 5°C | −3°C | 0.9°C | 128 mm | 39 cm |
| December | −1°C | −9°C | −4.9°C | 134 mm | 89 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00300785; 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 Boonville?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September 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 USC00300785.
When is the last frost in Boonville?
In Boonville, the last spring frost (32°F) comes after May 10 in half of years and after May 28 in one year in ten; the first autumn frost comes before October 4 in half of years and before September 22 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 101 year in 10 after May 28; 9 in 10 after April 28
- First autumn frost, half of years before
- October 41 year in 10 before September 22; 9 in 10 before October 18
NOAA puts the median frost-free season at 145 days, and the season without a hard freeze (28°F) at 167 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Boonville in zone 5a in ZIP code 13309, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Boonville's NOAA station is in zone 5a: the coldest night of a typical year reaches −18°F (29 complete years).
Frost dates for every NOAA station in New York · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00300785; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Boonville?
In a normal year in Boonville, a 90°F day is rare, 170 nights fall to 32°F or colder and 181 days bring measurable precipitation.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 170a normal year
- Days that stay below freezing
- 82high of 32°F or less
- Days with 0.01 inch of precipitation
- 181a normal year
- Days with 1 inch of snow or more
- 46a normal year
The highest temperature in this station's record (since 1949) is 94°F, on July 9, 1988; the lowest is −31°F, on January 4, 1981.
The wettest calendar year on that record is 1990, with 74.28 in; the snowiest season is 1976–77, with 346.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00300785; records: ACIS (NOAA Regional Climate Centers), station USC00300785. Records use complete months only; a month missing more than three days is left out.
How sunny is Boonville?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Boonville, 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 Boonville need?
A normal year in Boonville brings 8,531 heating degree days, 59% more than the median U.S. place (5,373), and 194 cooling degree days, 79% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,759 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,507 | 0 |
| February | 1,309 | 0 |
| March | 1,192 | 0 |
| April | 755 | 1 |
| May | 388 | 10 |
| June | 148 | 35 |
| July | 56 | 73 |
| August | 75 | 58 |
| September | 251 | 17 |
| October | 611 | 1 |
| November | 941 | 0 |
| December | 1,299 | 0 |
| Year (annual) | 8,531 | 194 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00300785. 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 Boonville been warmer than normal lately?
2025 averaged 42.4°F, 0.4°F above the 1991-2020 normal of 42.0°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 43.6°F | +1.6°F | 61.99 | 114.7 |
| 2022 | 42.4°F | +0.4°F | 65.45 | 184.3 |
| 2023 | 44.4°F | +2.4°F | 58.21 | 97.3 |
| 2024 | 45.0°F | +3.0°F | 63.37 | 151.4 |
| 2025 | 42.4°F | +0.4°F | 59.22 | 249.4 |
Over 70 complete years from 1950 to 2025, the station's annual mean temperature rose at a fitted 3.5°F per century (+0.20°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00300785; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Boonville's climate compare?
Boonville is warmer than 5 of the other 130 places with their own NOAA record in New York, and wetter than 116. Across the 7,247 U.S. stations with normals, its annual mean of 42.0°F is warmer than 9%.
In the Köppen classification computed from these normals, Boonville 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 Boonville share this climate record?
2 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.
- Port Leyden, NY591 people · 10 mi N
- White Lake, NY66 people · 13 mi NE
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 Boonville's climate
What is the coldest month in Boonville?
January, with a normal high of 25°F and a normal low of 8°F. The warmest is July (75°F by day, 56°F at night).
Does it snow in Boonville?
Yes: 164 inches in a normal year, falling on 68 days with 0.1 inch or more, the most in January (39.7 inches).
What is the rainiest month in Boonville?
October, with 6.11 in of precipitation in a normal year; the driest is February with 3.97 in.
What plant hardiness zone is Boonville in?
The USDA's 2023 map puts Boonville in zone 5a in ZIP code 13309, the nearest ZIP area. By the same method at Boonville's NOAA station, the coldest night of a typical year reaches −18°F (29 years, 1991-2020): zone 5a.
How late can frost come in Boonville?
In half of years the last 32°F night comes after May 10; in one year in ten it comes after May 28. Waiting until May 28 leaves about a one-in-ten chance of a later frost.
Nearby and next
- New York climateThe statewide normals and every place in the state
- Rome, NY14 miles from this station, 46.6°F a year
- Highmarket (2 mi W), NY15 miles from this station, 40.9°F a year
- Trenton Falls, NY16 miles from this station, 45.4°F a year
- Utica, NY20 miles from this station, 46.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made