Humid subtropical climate
Climate Portland - Tennessee
Annual high68ºF
Annual low48ºF
Precipitation52.94 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 45 | 27 | 4.41 | 1 |
| Feb | 49 | 30 | 4.77 | 2 |
| Mar | 59 | 38 | 4.79 | 0 |
| Apr | 69 | 47 | 4.41 | 0 |
| May | 77 | 56 | 5.89 | 0 |
| Jun | 85 | 65 | 4.15 | 0 |
| Jul | 88 | 68 | 4.21 | 0 |
| Aug | 88 | 67 | 3.67 | 0 |
| Sep | 81 | 59 | 3.59 | 0 |
| Oct | 70 | 48 | 3.70 | 0 |
| Nov | 59 | 39 | 4.35 | 0 |
| Dec | 47 | 29 | 5.00 | 0 |
- JanHigh 45ºFLow 27ºFPrecip 4.41 inch
- FebHigh 49ºFLow 30ºFPrecip 4.77 inch
- MarHigh 59ºFLow 38ºFPrecip 4.79 inch
- AprHigh 69ºFLow 47ºFPrecip 4.41 inch
- MayHigh 77ºFLow 56ºFPrecip 5.89 inch
- JunHigh 85ºFLow 65ºFPrecip 4.15 inch
- JulHigh 88ºFLow 68ºFPrecip 4.21 inch
- AugHigh 88ºFLow 67ºFPrecip 3.67 inch
- SepHigh 81ºFLow 59ºFPrecip 3.59 inch
- OctHigh 70ºFLow 48ºFPrecip 3.70 inch
- NovHigh 59ºFLow 39ºFPrecip 4.35 inch
- DecHigh 47ºFLow 29ºFPrecip 5.00 inch
Climate summary
What is the average weather in Portland, Tennessee?
Portland experiences a humid subtropical climate, characterized by hot summers and cold winters with strong seasonal contrast. Rainfall is spread fairly evenly through the year, contributing to high annual precipitation, though spring is the wettest season. Occasional snowfall occurs during the colder months.
Portland weather averages
Annual high68ºF
Annual low48ºF
Precipitation52.94 inch
Snowfall3 inch
Daily normals Portland - Tennessee - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 45.6 | 27.6 | 0.13 | 0.13 | 0.00 | 0.00 |
| Jan 2 | 45.5 | 27.5 | 0.27 | 0.27 | 0.00 | 0.00 |
| Jan 3 | 45.4 | 27.4 | 0.41 | 0.41 | 0.00 | 0.00 |
| Jan 4 | 45.3 | 27.2 | 0.55 | 0.55 | 0.00 | 0.00 |
| Jan 5 | 45.2 | 27.1 | 0.69 | 0.69 | 0.00 | 0.00 |
| Jan 6 | 45.1 | 27.0 | 0.82 | 0.82 | 0.00 | 0.00 |
| Jan 7 | 45.0 | 26.9 | 0.96 | 0.96 | 0.00 | 0.00 |
| Jan 8 | 44.9 | 26.8 | 1.09 | 1.09 | 0.00 | 0.00 |
| Jan 9 | 44.9 | 26.7 | 1.23 | 1.23 | 0.00 | 0.00 |
| Jan 10 | 44.8 | 26.6 | 1.37 | 1.37 | 0.00 | 0.00 |
| Jan 11 | 44.8 | 26.6 | 1.50 | 1.50 | 0.00 | 0.00 |
| Jan 12 | 44.8 | 26.5 | 1.63 | 1.63 | 0.00 | 0.00 |
| Jan 13 | 44.8 | 26.4 | 1.76 | 1.76 | 0.00 | 0.00 |
| Jan 14 | 44.8 | 26.4 | 1.90 | 1.90 | 0.00 | 0.00 |
| Jan 15 | 44.8 | 26.3 | 2.04 | 2.04 | 0.00 | 0.00 |
| Jan 16 | 44.8 | 26.3 | 2.17 | 2.17 | 0.00 | 0.00 |
| Jan 17 | 44.9 | 26.2 | 2.31 | 2.31 | 0.00 | 0.00 |
| Jan 18 | 44.9 | 26.2 | 2.45 | 2.45 | 0.10 | 0.10 |
| Jan 19 | 45.0 | 26.2 | 2.58 | 2.58 | 0.10 | 0.10 |
| Jan 20 | 45.1 | 26.2 | 2.72 | 2.72 | 0.10 | 0.10 |
| Jan 21 | 45.1 | 26.2 | 2.86 | 2.86 | 0.10 | 0.10 |
| Jan 22 | 45.2 | 26.2 | 3.00 | 3.00 | 0.10 | 0.10 |
| Jan 23 | 45.4 | 26.2 | 3.13 | 3.13 | 0.10 | 0.10 |
| Jan 24 | 45.5 | 26.3 | 3.26 | 3.26 | 0.10 | 0.10 |
| Jan 25 | 45.6 | 26.3 | 3.39 | 3.39 | 0.10 | 0.10 |
| Jan 26 | 45.8 | 26.4 | 3.53 | 3.53 | 0.10 | 0.10 |
| Jan 27 | 45.9 | 26.4 | 3.65 | 3.65 | 0.10 | 0.10 |
| Jan 28 | 46.1 | 26.5 | 3.79 | 3.79 | 0.10 | 0.10 |
| Jan 29 | 46.3 | 26.6 | 3.92 | 3.92 | 0.20 | 0.20 |
| Jan 30 | 46.5 | 26.7 | 4.06 | 4.06 | 0.20 | 0.20 |
| Jan 31 | 46.6 | 26.8 | 4.20 | 4.20 | 0.20 | 0.20 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Portland - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 90.0 | 63.0 | 0.00 |
| Oct 2 | 91.0 | 66.9 | 0.00 |
| Oct 3 | 79.0 | 62.1 | 0.72 |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | – | – | – |
| Oct 9 | 84.9 | 54.0 | 0.00 |
| Oct 10 | 82.9 | 54.0 | 0.00 |
| Oct 11 | 63.0 | 59.0 | 1.03 |
| Oct 12 | – | – | – |
| Oct 13 | – | – | – |
| Oct 14 | 90.0 | 62.1 | 0.00 |
| Oct 15 | 90.0 | 62.1 | 0.19 |
| Oct 16 | 88.0 | 66.9 | 0.00 |
| Oct 17 | 88.0 | 46.0 | 0.00 |
| Oct 18 | – | – | – |
| Oct 19 | – | – | – |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | – | – | – |
| Oct 23 | 75.0 | 44.1 | 0.00 |
| Oct 24 | 73.0 | 45.0 | 0.00 |
| Oct 25 | 75.0 | 48.0 | 0.00 |
| Oct 26 | – | – | – |
| Oct 27 | – | – | – |
| Oct 28 | – | – | – |
| Oct 29 | 77.0 | 48.0 | 0.00 |
| Oct 30 | 78.1 | 48.0 | 0.00 |
| Oct 31 | 79.0 | 50.0 | 0.00 |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature91.0ºF · Oct 2
- Lowest max temperature63.0ºF · Oct 11
- Highest min temperature66.9ºF · Oct 2
- Lowest min temperature44.1ºF · Oct 23
Geo Portland - Tennessee
Location
- Country
- United States
- State
- Tennessee
- County
- Sumner
- City
- Portland
- Zip Code
- 37148
- Elevation
- 801 ft
- Longitude
- -86.48
- Latitude
- 36.59
- ICAO
- –
- IATA
- –