Warm-summer humid continental climate
Climate Charlton - Massachusetts
Annual high58ºF
Annual low36ºF
Precipitation48.68 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 34 | 12 | 3.76 | 15 |
| Feb | 37 | 15 | 3.27 | 10 |
| Mar | 45 | 23 | 4.45 | 6 |
| Apr | 57 | 34 | 4.39 | 2 |
| May | 68 | 44 | 3.73 | 0 |
| Jun | 76 | 54 | 4.15 | 0 |
| Jul | 81 | 60 | 4.30 | 0 |
| Aug | 80 | 58 | 3.78 | 0 |
| Sep | 73 | 49 | 3.88 | 0 |
| Oct | 61 | 37 | 4.61 | 0 |
| Nov | 51 | 30 | 4.49 | 2 |
| Dec | 38 | 19 | 3.87 | 6 |
- JanHigh 34ºFLow 12ºFPrecip 3.76 inch
- FebHigh 37ºFLow 15ºFPrecip 3.27 inch
- MarHigh 45ºFLow 23ºFPrecip 4.45 inch
- AprHigh 57ºFLow 34ºFPrecip 4.39 inch
- MayHigh 68ºFLow 44ºFPrecip 3.73 inch
- JunHigh 76ºFLow 54ºFPrecip 4.15 inch
- JulHigh 81ºFLow 60ºFPrecip 4.30 inch
- AugHigh 80ºFLow 58ºFPrecip 3.78 inch
- SepHigh 73ºFLow 49ºFPrecip 3.88 inch
- OctHigh 61ºFLow 37ºFPrecip 4.61 inch
- NovHigh 51ºFLow 30ºFPrecip 4.49 inch
- DecHigh 38ºFLow 19ºFPrecip 3.87 inch
Climate summary
What is the average weather in Charlton, Massachusetts?
Charlton experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters are cold and bring significant snowfall. Precipitation is fairly wet overall, spread relatively evenly throughout the year, with winter moisture often arriving as snow.
Charlton weather averages
Annual high58ºF
Annual low36ºF
Precipitation48.68 inch
Snowfall41 inch
Daily normals Charlton - Massachusetts - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 35.3 | 17.2 | 0.12 | 0.12 | 0.30 | 0.30 |
| Jan 2 | 35.2 | 17.0 | 0.24 | 0.24 | 0.70 | 0.70 |
| Jan 3 | 35.0 | 16.8 | 0.36 | 0.36 | 1.00 | 1.00 |
| Jan 4 | 34.9 | 16.6 | 0.48 | 0.48 | 1.40 | 1.40 |
| Jan 5 | 34.8 | 16.4 | 0.61 | 0.61 | 1.70 | 1.70 |
| Jan 6 | 34.7 | 16.2 | 0.73 | 0.73 | 2.20 | 2.20 |
| Jan 7 | 34.6 | 16.0 | 0.85 | 0.85 | 2.60 | 2.60 |
| Jan 8 | 34.4 | 15.8 | 0.97 | 0.97 | 3.00 | 3.00 |
| Jan 9 | 34.3 | 15.6 | 1.08 | 1.08 | 3.40 | 3.40 |
| Jan 10 | 34.3 | 15.4 | 1.20 | 1.20 | 3.90 | 3.90 |
| Jan 11 | 34.2 | 15.2 | 1.32 | 1.32 | 4.30 | 4.30 |
| Jan 12 | 34.1 | 15.1 | 1.45 | 1.45 | 4.80 | 4.80 |
| Jan 13 | 34.0 | 14.9 | 1.57 | 1.57 | 5.30 | 5.30 |
| Jan 14 | 33.9 | 14.7 | 1.70 | 1.70 | 5.80 | 5.80 |
| Jan 15 | 33.9 | 14.5 | 1.82 | 1.82 | 6.30 | 6.30 |
| Jan 16 | 33.8 | 14.4 | 1.94 | 1.94 | 6.80 | 6.80 |
| Jan 17 | 33.8 | 14.2 | 2.07 | 2.07 | 7.30 | 7.30 |
| Jan 18 | 33.7 | 14.0 | 2.20 | 2.20 | 7.80 | 7.80 |
| Jan 19 | 33.7 | 13.9 | 2.31 | 2.31 | 8.30 | 8.30 |
| Jan 20 | 33.7 | 13.8 | 2.43 | 2.43 | 8.80 | 8.80 |
| Jan 21 | 33.6 | 13.6 | 2.55 | 2.55 | 9.30 | 9.30 |
| Jan 22 | 33.6 | 13.5 | 2.67 | 2.67 | 9.80 | 9.80 |
| Jan 23 | 33.6 | 13.4 | 2.80 | 2.80 | 10.30 | 10.30 |
| Jan 24 | 33.6 | 13.3 | 2.92 | 2.92 | 10.70 | 10.70 |
| Jan 25 | 33.6 | 13.2 | 3.05 | 3.05 | 11.20 | 11.20 |
| Jan 26 | 33.7 | 13.1 | 3.17 | 3.17 | 11.70 | 11.70 |
| Jan 27 | 33.7 | 13.0 | 3.30 | 3.30 | 12.20 | 12.20 |
| Jan 28 | 33.8 | 13.0 | 3.41 | 3.41 | 12.70 | 12.70 |
| Jan 29 | 33.8 | 12.9 | 3.53 | 3.53 | 13.10 | 13.10 |
| Jan 30 | 33.9 | 12.9 | 3.65 | 3.65 | 13.70 | 13.70 |
| Jan 31 | 34.0 | 12.9 | 3.77 | 3.77 | 14.20 | 14.20 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Charlton - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 69.1 | 54.0 | 0.00 |
| Oct 2 | 75.0 | 55.9 | T |
| Oct 3 | – | – | – |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 64.0 | 33.1 | 0.00 |
| Oct 9 | 71.1 | 39.0 | 0.00 |
| Oct 10 | 66.0 | 37.9 | 0.00 |
| Oct 11 | 66.0 | 41.0 | 0.00 |
| Oct 12 | 60.1 | 44.1 | 1.53 |
| Oct 13 | 72.0 | 50.0 | 0.04 |
| Oct 14 | 59.0 | 48.0 | 0.02 |
| Oct 15 | 73.9 | 51.1 | 0.05 |
| Oct 16 | 63.0 | 48.9 | 0.00 |
| Oct 17 | 69.1 | 46.9 | 0.21 |
| Oct 18 | 60.1 | 28.9 | 0.00 |
| Oct 19 | 60.1 | 28.9 | 0.00 |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | 57.9 | 43.0 | 0.00 |
| Oct 23 | 64.9 | 35.1 | 0.00 |
| Oct 24 | 57.9 | 28.0 | 0.00 |
| Oct 25 | 63.0 | 28.0 | 0.00 |
| Oct 26 | 66.9 | 30.0 | 0.00 |
| Oct 27 | 68.0 | 30.0 | 0.00 |
| Oct 28 | 55.0 | 28.9 | 0.00 |
| Oct 29 | – | – | – |
| Oct 30 | 66.9 | 36.0 | 0.00 |
| 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 temperature75.0ºF · Oct 2
- Lowest max temperature55.0ºF · Oct 28
- Highest min temperature55.9ºF · Oct 2
- Lowest min temperature28.0ºF · Oct 24
Geo Charlton - Massachusetts
Location
- Country
- United States
- State
- Massachusetts
- County
- –
- City
- Charlton
- Zip Code
- 1507
- Elevation
- 886 ft
- Longitude
- -71.97
- Latitude
- 42.14
- ICAO
- –
- IATA
- –