Shelby climate — normals and trends
Shelby (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.4 °C and it receives 1,138 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 (25.5 °C on average) and the coldest is January (4.7 °C). Rainfall peaks in March.
Shelby averages 52 frost days, 63 hot days (≥ 30 °C) and 124 rainy days per year.
Shelby 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 58 to 46 per year over the period.
The hottest day of the period reached 40.2 °C (on 29 June 2012) and the coldest -20.8 °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
ShelbyNorth Carolina
- coords
- 35.29°, -81.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.4°C
Average daily high
21.0°C
Average daily low
10.6°C
Annual rainfall
1,138mm
Sunshine / day
9.1h
Mean relative humidity
70%
Average peak wind
13.3km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
52 d/yr
Hot days (≥ 30 °C)
63 d/yr
Rainy days (≥ 1 mm)
124 d/yr
Annual snowfall
14.9 cm
Average feels-like high
21.0 °C
Average feels-like low
9.4 °C
Average peak gust
32.0 km/h
Tropical nights (≥ 20 °C)
69 d/yr
Solar radiation
16.0 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
40.2 °C
29 June 2012
Coldest day
-20.8 °C
21 January 1985
Wettest day
114 mm
17 September 2020
Windiest day
56.9 km/h
22 September 1989
Strongest gust
148.0 km/h
22 September 1989
Hottest feels-like
44.5 °C
21 August 1983
Coldest feels-like
-26.7 °C
21 January 1985
Snowiest day
30.5 cm
22 January 1987
Sunniest day
14.3 h
26 June 2012
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 | 8.5 °C | -1.5 °C | 39 mm | -62 mm |
| Feb | 14.6 °C | +2.4 °C | 74 mm | -21 mm |
| Mar | 19.8 °C | +3.3 °C | 49 mm | -64 mm |
| Apr | 23.5 °C | +1.9 °C | 91 mm | -3 mm |
| May | 24.7 °C | -1.1 °C | 154 mm | +69 mm |
| Jun | 31.0 °C | +1.5 °C | 105 mm | +16 mm |
| Jul | 33.4 °C | +2.5 °C | 89 mm | -16 mm |
| Aug | 27.3 °C | -2.7 °C | 244 mm | +139 mm |
| Sep | 27.2 °C | +0.2 °C | 44 mm | -49 mm |
| Oct | 21.4 °C | -0.4 °C | 74 mm | -6 mm |
| Nov | 17.8 °C | +1.8 °C | 17 mm | -68 mm |
| Dec | 12.0 °C | +0.8 °C | 50 mm | -45 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 Shelby?
Shelby has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.4 °C and it receives 1,138 mm of precipitation per year.
What is the hottest day ever recorded in Shelby?
The hottest day measured in Shelby between 1940 and 2025 was 29 June 2012, reaching 40.2 °C.
What is the coldest day in Shelby?
The coldest day measured in Shelby between 1940 and 2025 was 21 January 1985, at -20.8 °C.
Does it snow in Shelby?
Yes. Shelby gets on average 14.9 cm of snow per year and has around 52 frost days.
Has the climate of Shelby warmed?
Yes: Shelby warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Shelby?
The wettest day measured in Shelby between 1940 and 2025 was 17 September 2020, with 114 mm of rain in 24 hours.
What was the windiest day in Shelby?
The windiest day measured in Shelby between 1940 and 2025 was 22 September 1989, with winds reaching 56.9 km/h.
What is the warmest month in Shelby?
The warmest month in Shelby is July (25.5 °C on average); the coldest is January (4.7 °C).
How much does it rain in Shelby?
Shelby receives on average 1,138 mm of precipitation per year, spread over about 124 rainy days.
Is it sunny in Shelby?
Shelby gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Shelby?
The heaviest 24-hour snowfall measured in Shelby between 1940 and 2025 was 22 January 1987, with 30.5 cm.
Are there tropical nights in Shelby?
Yes: Shelby has on average 69 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Shelby?
In Shelby, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 21 August 1983, and the lowest was -26.7 °C on 21 January 1985.
Compare Shelby with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Shelby