Humid subtropical climate
Climate Mount Vernon - Indiana
Annual high66ºF
Annual low48ºF
Precipitation45.94 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 40 | 26 | 3.51 | 3 |
| Feb | 45 | 29 | 3.06 | 4 |
| Mar | 55 | 37 | 4.30 | 1 |
| Apr | 67 | 47 | 4.37 | 0 |
| May | 76 | 57 | 5.68 | 0 |
| Jun | 85 | 67 | 3.95 | 0 |
| Jul | 88 | 70 | 3.74 | 0 |
| Aug | 87 | 68 | 2.84 | 0 |
| Sep | 81 | 60 | 3.10 | 0 |
| Oct | 69 | 49 | 3.31 | 0 |
| Nov | 56 | 40 | 4.26 | 0 |
| Dec | 44 | 30 | 3.82 | 2 |
- JanHigh 40ºFLow 26ºFPrecip 3.51 inch
- FebHigh 45ºFLow 29ºFPrecip 3.06 inch
- MarHigh 55ºFLow 37ºFPrecip 4.30 inch
- AprHigh 67ºFLow 47ºFPrecip 4.37 inch
- MayHigh 76ºFLow 57ºFPrecip 5.68 inch
- JunHigh 85ºFLow 67ºFPrecip 3.95 inch
- JulHigh 88ºFLow 70ºFPrecip 3.74 inch
- AugHigh 87ºFLow 68ºFPrecip 2.84 inch
- SepHigh 81ºFLow 60ºFPrecip 3.10 inch
- OctHigh 69ºFLow 49ºFPrecip 3.31 inch
- NovHigh 56ºFLow 40ºFPrecip 4.26 inch
- DecHigh 44ºFLow 30ºFPrecip 3.82 inch
Climate summary
What is the average weather in Mount Vernon, Indiana?
Mount Vernon experiences a humid subtropical climate, characterized by hot summers and cold winters. Rainfall is fairly wet overall, spread fairly evenly throughout the year, though spring is typically the wettest season. Regular snowfall occurs during the winter months, and heavy downpours can happen in warmer periods.
Mount Vernon weather averages
Annual high66ºF
Annual low48ºF
Precipitation45.94 inch
Snowfall10 inch
Daily normals Mount Vernon - Indiana - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 42.2 | 24.2 | 0.13 | 0.13 | 0.10 | 0.10 |
| Jan 2 | 42.1 | 24.1 | 0.26 | 0.26 | 0.10 | 0.10 |
| Jan 3 | 42.0 | 23.9 | 0.39 | 0.39 | 0.20 | 0.20 |
| Jan 4 | 41.8 | 23.8 | 0.52 | 0.52 | 0.30 | 0.30 |
| Jan 5 | 41.7 | 23.6 | 0.65 | 0.65 | 0.40 | 0.40 |
| Jan 6 | 41.6 | 23.5 | 0.77 | 0.77 | 0.50 | 0.50 |
| Jan 7 | 41.5 | 23.4 | 0.90 | 0.90 | 0.60 | 0.60 |
| Jan 8 | 41.4 | 23.2 | 1.02 | 1.02 | 0.70 | 0.70 |
| Jan 9 | 41.3 | 23.1 | 1.15 | 1.15 | 0.80 | 0.80 |
| Jan 10 | 41.3 | 23.0 | 1.28 | 1.28 | 0.80 | 0.80 |
| Jan 11 | 41.2 | 22.9 | 1.41 | 1.41 | 0.90 | 0.90 |
| Jan 12 | 41.2 | 22.8 | 1.54 | 1.54 | 1.00 | 1.00 |
| Jan 13 | 41.2 | 22.7 | 1.67 | 1.67 | 1.10 | 1.10 |
| Jan 14 | 41.1 | 22.7 | 1.80 | 1.80 | 1.20 | 1.20 |
| Jan 15 | 41.1 | 22.6 | 1.93 | 1.93 | 1.20 | 1.20 |
| Jan 16 | 41.1 | 22.5 | 2.06 | 2.06 | 1.30 | 1.30 |
| Jan 17 | 41.2 | 22.5 | 2.20 | 2.20 | 1.40 | 1.40 |
| Jan 18 | 41.2 | 22.4 | 2.32 | 2.32 | 1.50 | 1.50 |
| Jan 19 | 41.2 | 22.4 | 2.44 | 2.44 | 1.50 | 1.50 |
| Jan 20 | 41.3 | 22.4 | 2.55 | 2.55 | 1.60 | 1.60 |
| Jan 21 | 41.3 | 22.4 | 2.65 | 2.65 | 1.70 | 1.70 |
| Jan 22 | 41.4 | 22.4 | 2.75 | 2.75 | 1.80 | 1.80 |
| Jan 23 | 41.5 | 22.4 | 2.85 | 2.85 | 1.80 | 1.80 |
| Jan 24 | 41.6 | 22.4 | 2.95 | 2.95 | 1.90 | 1.90 |
| Jan 25 | 41.7 | 22.4 | 3.04 | 3.04 | 2.00 | 2.00 |
| Jan 26 | 41.8 | 22.5 | 3.13 | 3.13 | 2.10 | 2.10 |
| Jan 27 | 42.0 | 22.5 | 3.21 | 3.21 | 2.10 | 2.10 |
| Jan 28 | 42.1 | 22.6 | 3.30 | 3.30 | 2.20 | 2.20 |
| Jan 29 | 42.3 | 22.7 | 3.37 | 3.37 | 2.30 | 2.30 |
| Jan 30 | 42.4 | 22.8 | 3.45 | 3.45 | 2.30 | 2.30 |
| Jan 31 | 42.6 | 22.9 | 3.53 | 3.53 | 2.40 | 2.40 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Mount Vernon - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 87.1 | 69.1 | 0.00 |
| Oct 2 | 89.1 | 69.1 | 0.47 |
| Oct 3 | 71.1 | 55.0 | 0.38 |
| Oct 4 | 75.0 | 55.0 | 0.00 |
| Oct 5 | 78.1 | 55.9 | 0.00 |
| Oct 6 | 75.0 | 54.0 | 0.00 |
| Oct 7 | – | – | – |
| Oct 8 | – | – | – |
| Oct 9 | 82.9 | 57.9 | 0.00 |
| Oct 10 | 82.0 | 59.0 | 0.00 |
| Oct 11 | 70.0 | 61.0 | 0.03 |
| Oct 12 | 81.0 | 60.1 | 0.00 |
| Oct 13 | 88.0 | 61.0 | 0.00 |
| Oct 14 | 88.0 | 64.9 | 0.00 |
| Oct 15 | – | – | – |
| Oct 16 | – | – | – |
| Oct 17 | – | – | – |
| Oct 18 | 57.0 | 43.0 | 0.00 |
| Oct 19 | 64.9 | 43.0 | 0.00 |
| Oct 20 | 70.0 | 46.0 | 0.00 |
| Oct 21 | 72.0 | 48.0 | 0.00 |
| Oct 22 | – | – | – |
| Oct 23 | 75.0 | 48.9 | 0.00 |
| Oct 24 | 72.0 | 51.1 | 0.00 |
| Oct 25 | 72.0 | 51.1 | 0.00 |
| Oct 26 | 75.9 | – | 0.00 |
| Oct 27 | 75.0 | 51.1 | 0.00 |
| Oct 28 | 73.9 | 52.0 | 0.00 |
| Oct 29 | – | – | – |
| Oct 30 | – | – | – |
| Oct 31 | – | – | – |
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 temperature89.1ºF · Oct 2
- Lowest max temperature57.0ºF · Oct 18
- Highest min temperature69.1ºF · Oct 1
- Lowest min temperature43.0ºF · Oct 18
Geo Mount Vernon - Indiana
Location
- Country
- United States
- State
- Indiana
- County
- Posey
- City
- Mount Vernon
- Zip Code
- 47620
- Elevation
- 384 ft
- Longitude
- -87.90
- Latitude
- 37.93
- ICAO
- –
- IATA
- –