Natchez climate — normals and trends
Natchez (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.2 °C and it receives 1,163 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 (27.7 °C on average) and the coldest is January (9.2 °C). Rainfall peaks in March.
Natchez averages 17 frost days, 119 hot days (≥ 30 °C) and 119 rainy days per year.
Natchez has warmed by +1.2 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.4 °C (on 24 August 2023) and the coldest -14.0 °C (on 23 December 1989).
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
NatchezMississippi
- coords
- 31.56°, -91.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.2°C
Average daily high
24.7°C
Average daily low
14.5°C
Annual rainfall
1,163mm
Sunshine / day
9.4h
Mean relative humidity
73%
Average peak wind
14.8km/h
Seasonal range
18.5°C
Frost days (< 0 °C)
17 d/yr
Hot days (≥ 30 °C)
119 d/yr
Rainy days (≥ 1 mm)
119 d/yr
Annual snowfall
1.7 cm
Average feels-like high
25.8 °C
Average feels-like low
14.4 °C
Average peak gust
33.0 km/h
Tropical nights (≥ 20 °C)
129 d/yr
Solar radiation
16.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.2 °C per decade · r² = 0.26 · 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
24 August 2023
Coldest day
-14.0 °C
23 December 1989
Wettest day
267 mm
13 September 1948
Windiest day
57.9 km/h
1 September 2008
Strongest gust
141.8 km/h
1 September 2008
Hottest feels-like
47.3 °C
24 August 2023
Coldest feels-like
-20.9 °C
23 December 1989
Snowiest day
10.4 cm
30 January 1949
Sunniest day
13.9 h
21 June 2025
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 | 12.8 °C | -1.6 °C | 123 mm | +5 mm |
| Feb | 19.1 °C | +2.4 °C | 116 mm | +7 mm |
| Mar | 23.9 °C | +3.1 °C | 137 mm | +13 mm |
| Apr | 27.4 °C | +2.5 °C | 112 mm | +1 mm |
| May | 29.2 °C | +0.5 °C | 138 mm | +38 mm |
| Jun | 32.4 °C | +0.5 °C | 110 mm | +30 mm |
| Jul | 33.5 °C | +0.8 °C | 87 mm | -4 mm |
| Aug | 33.4 °C | +0.3 °C | 93 mm | +15 mm |
| Sep | 32.1 °C | +1.3 °C | 31 mm | -48 mm |
| Oct | 27.7 °C | +1.5 °C | 116 mm | +45 mm |
| Nov | 22.5 °C | +2.3 °C | 58 mm | -34 mm |
| Dec | 17.6 °C | +1.5 °C | 77 mm | -33 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 Natchez?
Natchez has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 1,163 mm of precipitation per year.
What is the hottest day ever recorded in Natchez?
The hottest day measured in Natchez between 1940 and 2025 was 24 August 2023, reaching 41.4 °C.
What is the coldest day in Natchez?
The coldest day measured in Natchez between 1940 and 2025 was 23 December 1989, at -14.0 °C.
Does it snow in Natchez?
Yes. Natchez gets on average 1.7 cm of snow per year and has around 17 frost days.
Has the climate of Natchez warmed?
Yes: Natchez warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Natchez?
The wettest day measured in Natchez between 1940 and 2025 was 13 September 1948, with 267 mm of rain in 24 hours.
What was the windiest day in Natchez?
The windiest day measured in Natchez between 1940 and 2025 was 1 September 2008, with winds reaching 57.9 km/h.
What is the warmest month in Natchez?
The warmest month in Natchez is July (27.7 °C on average); the coldest is January (9.2 °C).
How much does it rain in Natchez?
Natchez receives on average 1,163 mm of precipitation per year, spread over about 119 rainy days.
Is it sunny in Natchez?
Natchez gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
What is the biggest single-day snowfall in Natchez?
The heaviest 24-hour snowfall measured in Natchez between 1940 and 2025 was 30 January 1949, with 10.4 cm.
Are there tropical nights in Natchez?
Yes: Natchez has on average 129 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Natchez?
In Natchez, between 1940 and 2025, the highest apparent temperature reached 47.3 °C on 24 August 2023, and the lowest was -20.9 °C on 23 December 1989.
Compare Natchez with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Natchez