Ruston climate — normals and trends
Ruston (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.4 °C and it receives 1,189 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 (27.9 °C on average) and the coldest is January (7.8 °C). Rainfall peaks in March.
Ruston averages 25 frost days, 116 hot days (≥ 30 °C) and 115 rainy days per year.
Ruston has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.2 °C (on 30 August 2000) and the coldest -16.6 °C (on 11 January 1962).
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
RustonLouisiana
- coords
- 32.52°, -92.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.4°C
Average daily high
24.2°C
Average daily low
13.5°C
Annual rainfall
1,189mm
Sunshine / day
9.3h
Mean relative humidity
70%
Average peak wind
14.3km/h
Seasonal range
20.1°C
Frost days (< 0 °C)
25 d/yr
Hot days (≥ 30 °C)
116 d/yr
Rainy days (≥ 1 mm)
115 d/yr
Annual snowfall
2.9 cm
Average feels-like high
24.8 °C
Average feels-like low
13.0 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
114 d/yr
Solar radiation
16.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.25 · 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
42.2 °C
30 August 2000
Coldest day
-16.6 °C
11 January 1962
Wettest day
155 mm
16 October 2006
Windiest day
47.2 km/h
27 August 2020
Strongest gust
139.3 km/h
27 August 2020
Hottest feels-like
46.8 °C
2 August 2023
Coldest feels-like
-21.8 °C
11 January 1962
Snowiest day
10.9 cm
16 January 1964
Sunniest day
13.9 h
30 May 1940
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 | 11.7 °C | -1.4 °C | 101 mm | -11 mm |
| Feb | 17.1 °C | +1.6 °C | 124 mm | +16 mm |
| Mar | 23.1 °C | +3.3 °C | 162 mm | +31 mm |
| Apr | 27.3 °C | +3.0 °C | 99 mm | -30 mm |
| May | 29.0 °C | +0.6 °C | 143 mm | +34 mm |
| Jun | 33.6 °C | +1.4 °C | 90 mm | +7 mm |
| Jul | 35.9 °C | +2.3 °C | 43 mm | -35 mm |
| Aug | 34.7 °C | +1.0 °C | 95 mm | +21 mm |
| Sep | 32.0 °C | +1.4 °C | 37 mm | -36 mm |
| Oct | 27.4 °C | +1.8 °C | 82 mm | -3 mm |
| Nov | 22.0 °C | +3.0 °C | 50 mm | -48 mm |
| Dec | 16.1 °C | +1.5 °C | 57 mm | -53 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 Ruston?
Ruston has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 1,189 mm of precipitation per year.
What is the hottest day ever recorded in Ruston?
The hottest day measured in Ruston between 1940 and 2025 was 30 August 2000, reaching 42.2 °C.
What is the coldest day in Ruston?
The coldest day measured in Ruston between 1940 and 2025 was 11 January 1962, at -16.6 °C.
Does it snow in Ruston?
Yes. Ruston gets on average 2.9 cm of snow per year and has around 25 frost days.
Has the climate of Ruston warmed?
Yes: Ruston warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ruston?
The wettest day measured in Ruston between 1940 and 2025 was 16 October 2006, with 155 mm of rain in 24 hours.
What was the windiest day in Ruston?
The windiest day measured in Ruston between 1940 and 2025 was 27 August 2020, with winds reaching 47.2 km/h.
What is the warmest month in Ruston?
The warmest month in Ruston is July (27.9 °C on average); the coldest is January (7.8 °C).
How much does it rain in Ruston?
Ruston receives on average 1,189 mm of precipitation per year, spread over about 115 rainy days.
Is it sunny in Ruston?
Ruston gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ruston?
The heaviest 24-hour snowfall measured in Ruston between 1940 and 2025 was 16 January 1964, with 10.9 cm.
Are there tropical nights in Ruston?
Yes: Ruston has on average 114 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ruston?
In Ruston, between 1940 and 2025, the highest apparent temperature reached 46.8 °C on 2 August 2023, and the lowest was -21.8 °C on 11 January 1962.
Compare Ruston with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ruston