Boone, North Carolina climate: Normal weather by month, frost dates and records
Boone's normal year runs from 22°F January nights to 79°F July afternoons, with 59.1 inches of precipitation and 26 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.1°C, January lows of −6°C, July highs of 26°C, 1,502 mm of precipitation a year.
- NOAA stationBoone (1 mi SE)
- Station IDUSC00310982
- Location36.21°N 81.65°W
- Elevation3,100 ft (945 m)
- From the center1 miles
- Population20,080
On October 22, the normal high in Boone is 61°F and the normal low 37°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Boone.
- Jan 41° 22°
- Feb 45° 24°
- Mar 52° 29°
- Apr 62° 37°
- May 69° 46°
- Jun 76° 54°
- Jul 79° 58°
- Aug 78° 56°
- Sep 72° 50°
- Oct 63° 39°
- Nov 53° 30°
- Dec 45° 25°
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 Boone each month?
July is the warmest month, with normal highs of 79°F; January the coldest, with normal lows of 22°F. The most precipitation falls in September (5.73 in), the least in February (3.64 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 41°F | 22°F | 31.5°F | 4.39 | 6.6 | 12 | <1 | 25 | 10 h |
| February | 45°F | 24°F | 34.2°F | 3.64 | 6.7 | 12 | <1 | 23 | 10 h 50 min |
| March | 52°F | 29°F | 40.5°F | 4.77 | 4.8 | 12 | <1 | 19 | 11 h 50 min |
| April | 62°F | 37°F | 49.3°F | 5.52 | 1.0 | 13 | <1 | 9 | 13 h |
| May | 69°F | 46°F | 57.6°F | 5.46 | 0.0 | 14 | <1 | 2 | 14 h |
| June | 76°F | 54°F | 64.7°F | 5.59 | 0.0 | 14 | <1 | <1 | 14 h 40 min |
| July | 79°F | 58°F | 68.4°F | 5.11 | 0.0 | 14 | <1 | <1 | 14 h 20 min |
| August | 78°F | 56°F | 67.1°F | 5.56 | 0.0 | 13 | <1 | <1 | 13 h 30 min |
| September | 72°F | 50°F | 61.3°F | 5.73 | 0.0 | 11 | <1 | <1 | 12 h 30 min |
| October | 63°F | 39°F | 51.2°F | 4.69 | 0.3 | 10 | <1 | 6 | 11 h 20 min |
| November | 53°F | 30°F | 41.3°F | 4.44 | 1.0 | 9 | <1 | 20 | 10 h 20 min |
| December | 45°F | 25°F | 34.9°F | 4.23 | 5.2 | 12 | <1 | 24 | 9 h 40 min |
| Year (annual) | 61°F | 39°F | 50.2°F | 59.13 | 25.6 | 146 | <1 | 127 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −6°C | −0.3°C | 112 mm | 17 cm |
| February | 7°C | −5°C | 1.2°C | 92 mm | 17 cm |
| March | 11°C | −2°C | 4.7°C | 121 mm | 12 cm |
| April | 17°C | 3°C | 9.6°C | 140 mm | 3 cm |
| May | 21°C | 8°C | 14.2°C | 139 mm | 0 cm |
| June | 24°C | 12°C | 18.2°C | 142 mm | 0 cm |
| July | 26°C | 14°C | 20.2°C | 130 mm | 0 cm |
| August | 25°C | 13°C | 19.5°C | 141 mm | 0 cm |
| September | 22°C | 10°C | 16.3°C | 146 mm | 0 cm |
| October | 17°C | 4°C | 10.7°C | 119 mm | 1 cm |
| November | 12°C | −1°C | 5.2°C | 113 mm | 3 cm |
| December | 7°C | −4°C | 1.6°C | 107 mm | 13 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00310982; 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 Boone?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (11).
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 USC00310982.
When is the last frost in Boone?
In Boone, the last spring frost (32°F) comes after May 2 in half of years and after May 19 in one year in ten; the first autumn frost comes before October 13 in half of years and before September 30 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 21 year in 10 after May 19; 9 in 10 after April 17
- First autumn frost, half of years before
- October 131 year in 10 before September 30; 9 in 10 before October 27
NOAA puts the median frost-free season at 163 days, and the season without a hard freeze (28°F) at 187 days.
A hard freeze (28°F) comes after April 19 in half of springs and before October 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Boone in zone 7a in ZIP code 28607, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Boone's NOAA station is in zone 7a: the coldest night of a typical year reaches 2°F (27 complete years).
Frost dates for every NOAA station in North Carolina · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00310982; 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 Boone?
In a normal year in Boone, a 90°F day is rare, 127 nights fall to 32°F or colder and 146 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
- 127a normal year
- Days that stay below freezing
- 18high of 32°F or less
- Days with 0.01 inch of precipitation
- 146a normal year
- Days with 1 inch of snow or more
- 10a normal year
The highest temperature in this station's record (since 1980) is 93°F, on July 27, 2005; the lowest is −24°F, on January 21, 1985.
The wettest calendar year on that record is 2018, with 93.42 in; the snowiest season is 1986–87, with 78.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00310982; records: ACIS (NOAA Regional Climate Centers), station USC00310982. Records use complete months only; a month missing more than three days is left out.
How sunny is Boone?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Boone, 4.2 kWh per square metre a day. August is the sunniest month (75%) and February the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.4 |
| February | 66% | 3.0 |
| March | 69% | 4.1 |
| April | 72% | 5.2 |
| May | 71% | 5.7 |
| June | 75% | 6.1 |
| July | 74% | 5.8 |
| August | 75% | 5.3 |
| September | 74% | 4.6 |
| October | 74% | 3.6 |
| November | 75% | 2.8 |
| December | 68% | 2.1 |
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 Boone need?
A normal year in Boone brings 5,689 heating degree days, 6% more than the median U.S. place (5,373), and 300 cooling degree days, 67% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,401 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,038 | 0 |
| February | 861 | 0 |
| March | 761 | 0 |
| April | 472 | 1 |
| May | 239 | 9 |
| June | 64 | 57 |
| July | 16 | 120 |
| August | 27 | 90 |
| September | 135 | 22 |
| October | 431 | 2 |
| November | 711 | 0 |
| December | 935 | 0 |
| Year (annual) | 5,689 | 300 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00310982. 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 Boone been warmer than normal lately?
2025 averaged 51.1°F, 0.9°F above the 1991-2020 normal of 50.2°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 51.1°F | +0.9°F | 50.51 | 18.0 |
| 2022 | 50.4°F | +0.2°F | 58.48 | 13.0 |
| 2023 | 51.7°F | +1.5°F | 54.56 | 3.2 |
| 2024 | 52.2°F | +2.0°F | 71.59 | 11.5 |
| 2025 | 51.1°F | +0.9°F | 51.64 | 22.5 |
Over 40 complete years from 1981 to 2025, the station's annual mean temperature rose at a fitted 5.0°F per century (+0.28°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00310982; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Boone's climate compare?
Boone is warmer than 3 of the other 130 places with their own NOAA record in North Carolina, and wetter than 112. Across the 7,247 U.S. stations with normals, its annual mean of 50.2°F is warmer than 41%.
In the Köppen classification computed from these normals, Boone 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.
Questions about Boone's climate
What is the coldest month in Boone?
January, with a normal high of 41°F and a normal low of 22°F. The warmest is July (79°F by day, 58°F at night).
Does it snow in Boone?
Yes: 26 inches in a normal year, falling on 14 days with 0.1 inch or more, the most in February (6.7 inches).
What is the rainiest month in Boone?
September, with 5.73 in of precipitation in a normal year; the driest is February with 3.64 in.
What plant hardiness zone is Boone in?
The USDA's 2023 map puts Boone in zone 7a in ZIP code 28607, the nearest ZIP area. By the same method at Boone's NOAA station, the coldest night of a typical year reaches 2°F (27 years, 1991-2020): zone 7a.
How late can frost come in Boone?
In half of years the last 32°F night comes after May 2; in one year in ten it comes after May 19. Waiting until May 19 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Boone in OctoberThis month day by day, its records and recent years
- North Carolina climateThe statewide normals and every place in the state
- Blowing Rock, NC6 miles from this station, 49.8°F a year
- Beech Mountain, NC13 miles from this station, 45.8°F a year
- Grandfather Mountain, NC13 miles from this station, 47.5°F a year
- Banner Elk, NC13 miles from this station, 50.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made