Maryville climate — normals and trends
Maryville (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.7 °C and it receives 1,168 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 (24.9 °C on average) and the coldest is January (3.6 °C). Rainfall peaks in March.
Maryville averages 60 frost days, 50 hot days (≥ 30 °C) and 136 rainy days per year.
Maryville has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The number of frost days there went from about 69 to 51 per year over the period.
The hottest day of the period reached 39.9 °C (on 30 June 2012) and the coldest -27.5 °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
MaryvilleTennessee
- coords
- 35.76°, -83.97°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.7°C
Average daily high
20.2°C
Average daily low
9.7°C
Annual rainfall
1,168mm
Sunshine / day
9.1h
Mean relative humidity
72%
Average peak wind
12.4km/h
Seasonal range
21.3°C
Frost days (< 0 °C)
60 d/yr
Hot days (≥ 30 °C)
50 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
25.2 cm
Average feels-like high
19.9 °C
Average feels-like low
8.6 °C
Average peak gust
32.6 km/h
Tropical nights (≥ 20 °C)
51 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.38 · 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
39.9 °C
30 June 2012
Coldest day
-27.5 °C
21 January 1985
Wettest day
105 mm
5 September 2011
Windiest day
38.5 km/h
28 January 1994
Strongest gust
118.1 km/h
17 February 2022
Hottest feels-like
43.1 °C
21 August 1983
Coldest feels-like
-32.4 °C
21 January 1985
Snowiest day
38.5 cm
13 March 1993
Sunniest day
14.2 h
19 June 2022
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 | 6.0 °C | -2.5 °C | 67 mm | -50 mm |
| Feb | 13.4 °C | +2.5 °C | 131 mm | +16 mm |
| Mar | 19.6 °C | +4.1 °C | 54 mm | -70 mm |
| Apr | 23.5 °C | +2.9 °C | 126 mm | +21 mm |
| May | 24.3 °C | -0.3 °C | 167 mm | +72 mm |
| Jun | 30.9 °C | +2.3 °C | 89 mm | +6 mm |
| Jul | 33.0 °C | +3.1 °C | 67 mm | -29 mm |
| Aug | 28.9 °C | -0.8 °C | 114 mm | +34 mm |
| Sep | 28.2 °C | +1.3 °C | 47 mm | -35 mm |
| Oct | 22.5 °C | +1.2 °C | 95 mm | +22 mm |
| Nov | 16.7 °C | +1.6 °C | 79 mm | -13 mm |
| Dec | 11.8 °C | +1.6 °C | 69 mm | -38 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 Maryville?
Maryville has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.7 °C and it receives 1,168 mm of precipitation per year.
What is the hottest day ever recorded in Maryville?
The hottest day measured in Maryville between 1940 and 2025 was 30 June 2012, reaching 39.9 °C.
What is the coldest day in Maryville?
The coldest day measured in Maryville between 1940 and 2025 was 21 January 1985, at -27.5 °C.
Does it snow in Maryville?
Yes. Maryville gets on average 25.2 cm of snow per year and has around 60 frost days.
Has the climate of Maryville warmed?
Yes: Maryville warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Maryville?
The wettest day measured in Maryville between 1940 and 2025 was 5 September 2011, with 105 mm of rain in 24 hours.
What was the windiest day in Maryville?
The windiest day measured in Maryville between 1940 and 2025 was 28 January 1994, with winds reaching 38.5 km/h.
What is the warmest month in Maryville?
The warmest month in Maryville is July (24.9 °C on average); the coldest is January (3.6 °C).
How much does it rain in Maryville?
Maryville receives on average 1,168 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Maryville?
Maryville 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 Maryville?
The heaviest 24-hour snowfall measured in Maryville between 1940 and 2025 was 13 March 1993, with 38.5 cm.
Are there tropical nights in Maryville?
Yes: Maryville has on average 51 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Maryville?
In Maryville, between 1940 and 2025, the highest apparent temperature reached 43.1 °C on 21 August 1983, and the lowest was -32.4 °C on 21 January 1985.
Compare Maryville with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Maryville