Henderson climate — normals and trends
Henderson (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.4 °C and it receives 1,104 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 (25.7 °C on average) and the coldest is January (4.5 °C). Rainfall peaks in July.
Henderson averages 50 frost days, 62 hot days (≥ 30 °C) and 121 rainy days per year.
Henderson 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 55 to 45 per year over the period.
The hottest day of the period reached 41.4 °C (on 29 June 2012) and the coldest -21.2 °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
HendersonNorth Carolina
- coords
- 36.33°, -78.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.4°C
Average daily high
20.7°C
Average daily low
10.7°C
Annual rainfall
1,104mm
Sunshine / day
9.1h
Mean relative humidity
70%
Average peak wind
14.9km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
50 d/yr
Hot days (≥ 30 °C)
62 d/yr
Rainy days (≥ 1 mm)
121 d/yr
Annual snowfall
18.8 cm
Average feels-like high
20.5 °C
Average feels-like low
9.4 °C
Average peak gust
34.6 km/h
Tropical nights (≥ 20 °C)
74 d/yr
Solar radiation
15.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.30 · 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
41.4 °C
29 June 2012
Coldest day
-21.2 °C
21 January 1985
Wettest day
122 mm
8 September 1977
Windiest day
59.9 km/h
6 September 1996
Strongest gust
147.2 km/h
6 September 1996
Hottest feels-like
45.4 °C
29 June 2012
Coldest feels-like
-27.4 °C
21 January 1985
Snowiest day
29.5 cm
1 March 1969
Sunniest day
14.1 h
18 June 2024
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 | 7.6 °C | -1.8 °C | 39 mm | -49 mm |
| Feb | 12.7 °C | +1.4 °C | 96 mm | +10 mm |
| Mar | 19.6 °C | +3.8 °C | 87 mm | -15 mm |
| Apr | 23.7 °C | +2.4 °C | 96 mm | +13 mm |
| May | 25.2 °C | -0.2 °C | 172 mm | +82 mm |
| Jun | 31.0 °C | +1.7 °C | 88 mm | -2 mm |
| Jul | 32.0 °C | +1.1 °C | 156 mm | +37 mm |
| Aug | 27.2 °C | -2.7 °C | 168 mm | +59 mm |
| Sep | 26.2 °C | -0.5 °C | 84 mm | -17 mm |
| Oct | 20.5 °C | -1.0 °C | 65 mm | -10 mm |
| Nov | 17.2 °C | +1.2 °C | 47 mm | -33 mm |
| Dec | 10.2 °C | -0.8 °C | 57 mm | -24 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 Henderson?
Henderson has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.4 °C and it receives 1,104 mm of precipitation per year.
What is the hottest day ever recorded in Henderson?
The hottest day measured in Henderson between 1940 and 2025 was 29 June 2012, reaching 41.4 °C.
What is the coldest day in Henderson?
The coldest day measured in Henderson between 1940 and 2025 was 21 January 1985, at -21.2 °C.
Does it snow in Henderson?
Yes. Henderson gets on average 18.8 cm of snow per year and has around 50 frost days.
Has the climate of Henderson warmed?
Yes: Henderson warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Henderson?
The wettest day measured in Henderson between 1940 and 2025 was 8 September 1977, with 122 mm of rain in 24 hours.
What was the windiest day in Henderson?
The windiest day measured in Henderson between 1940 and 2025 was 6 September 1996, with winds reaching 59.9 km/h.
What is the warmest month in Henderson?
The warmest month in Henderson is July (25.7 °C on average); the coldest is January (4.5 °C).
How much does it rain in Henderson?
Henderson receives on average 1,104 mm of precipitation per year, spread over about 121 rainy days.
Is it sunny in Henderson?
Henderson 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 Henderson?
The heaviest 24-hour snowfall measured in Henderson between 1940 and 2025 was 1 March 1969, with 29.5 cm.
Are there tropical nights in Henderson?
Yes: Henderson has on average 74 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Henderson?
In Henderson, between 1940 and 2025, the highest apparent temperature reached 45.4 °C on 29 June 2012, and the lowest was -27.4 °C on 21 January 1985.
Compare Henderson with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Henderson