Boone climate — normals and trends
Boone (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 1,375 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (20.3 °C on average) and the coldest is January (-0.1 °C). Rainfall peaks in July.
Boone averages 99 frost days, 1 hot days (≥ 30 °C) and 157 rainy days per year.
Boone has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The number of frost days there went from about 109 to 89 per year over the period.
The hottest day of the period reached 32.1 °C (on 14 July 1954) and the coldest -30.3 °C (on 21 January 1985).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BooneNorth Carolina
- coords
- 36.22°, -81.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.5°C
Average daily high
15.6°C
Average daily low
6.1°C
Annual rainfall
1,375mm
Sunshine / day
9.0h
Mean relative humidity
74%
Average peak wind
14.3km/h
Seasonal range
20.4°C
Frost days (< 0 °C)
99 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
70.1 cm
Average feels-like high
14.3 °C
Average feels-like low
3.8 °C
Average peak gust
42.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.29 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
32.1 °C
14 July 1954
Coldest day
-30.3 °C
21 January 1985
Wettest day
172 mm
27 August 1995
Windiest day
44.0 km/h
27 September 2024
Strongest gust
139.3 km/h
22 September 1989
Hottest feels-like
36.6 °C
28 June 1952
Coldest feels-like
-37.3 °C
21 January 1985
Snowiest day
43.2 cm
13 March 1993
Sunniest day
14.5 h
24 June 1942
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 2.4 °C | -2.4 °C | 65 mm | -45 mm |
| Feb | 9.1 °C | +2.4 °C | 119 mm | +15 mm |
| Mar | 14.6 °C | +3.6 °C | 90 mm | -36 mm |
| Apr | 18.3 °C | +2.0 °C | 123 mm | +4 mm |
| May | 19.0 °C | -1.0 °C | 241 mm | +115 mm |
| Jun | 25.2 °C | +1.7 °C | 147 mm | +24 mm |
| Jul | 26.5 °C | +1.6 °C | 152 mm | +10 mm |
| Aug | 22.6 °C | -1.8 °C | 149 mm | +15 mm |
| Sep | 21.5 °C | -0.1 °C | 125 mm | +13 mm |
| Oct | 16.2 °C | -0.5 °C | 83 mm | -4 mm |
| Nov | 11.8 °C | +0.8 °C | 45 mm | -46 mm |
| Dec | 6.9 °C | +0.5 °C | 66 mm | -34 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Boone?
Boone has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 1,375 mm of precipitation per year.
What is the hottest day ever recorded in Boone?
The hottest day measured in Boone between 1940 and 2025 was 14 July 1954, reaching 32.1 °C.
What is the coldest day in Boone?
The coldest day measured in Boone between 1940 and 2025 was 21 January 1985, at -30.3 °C.
Does it snow in Boone?
Yes. Boone gets on average 70.1 cm of snow per year and has around 99 frost days.
Has the climate of Boone warmed?
Yes: Boone warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Boone?
The wettest day measured in Boone between 1940 and 2025 was 27 August 1995, with 172 mm of rain in 24 hours.
What was the windiest day in Boone?
The windiest day measured in Boone between 1940 and 2025 was 27 September 2024, with winds reaching 44.0 km/h.
What is the warmest month in Boone?
The warmest month in Boone is July (20.3 °C on average); the coldest is January (-0.1 °C).
How much does it rain in Boone?
Boone receives on average 1,375 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Boone?
Boone gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Boone?
The heaviest 24-hour snowfall measured in Boone between 1940 and 2025 was 13 March 1993, with 43.2 cm.
Are there tropical nights in Boone?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Boone.
What was the most extreme apparent temperature in Boone?
In Boone, between 1940 and 2025, the highest apparent temperature reached 36.6 °C on 28 June 1952, and the lowest was -37.3 °C on 21 January 1985.
Compare Boone with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Boone