Annual mean
Annual mean of daily highs
Annual mean of daily lows
Charlton CDP, Maryland
Official LSAD Designation: Charlton CDP • Census GEOID: 2415500
• Washington County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Charlton CDP.
Reference Weather Station: HAGERSTOWN WASHINGTON CO AP, MD US (ID: USW00093706)
• Located 10.1 miles from community center
• Elevation: 212.8 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 40.5° | 25.3° | 32.9° | 2.46" |
| February | 43.6° | 27.3° | 35.5° | 1.97" |
| March | 52.8° | 34.0° | 43.4° | 3.04" |
| April | 64.9° | 44.3° | 54.6° | 3.33" |
| May | 74.4° | 54.5° | 64.4° | 3.55" |
| June | 82.6° | 63.7° | 73.1° | 3.36" |
| July | 87.3° | 67.9° | 77.6° | 2.94" |
| August | 84.9° | 65.7° | 75.3° | 2.90" |
| September | 77.8° | 58.9° | 68.4° | 3.83" |
| October | 66.0° | 47.4° | 56.7° | 2.76" |
| November | 54.4° | 37.4° | 45.9° | 2.63" |
| December | 44.0° | 29.8° | 36.9° | 2.83" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station HAGERSTOWN WASHINGTON CO AP, MD US (ID: USW00093706) • 10.1 miles from community center .
This is the same reference station used for monthly normals.
Source: NOAA NCEI Global Summary of the Year.
Annual temperature data table (°F)
| Year | Annual mean (°F) | Annual mean of daily highs (°F) | Annual mean of daily lows (°F) |
|---|---|---|---|
| 2010 | 56.7 | 66.0 | 47.4 |
| 2011 | 55.3 | 64.1 | 46.5 |
| 2012 | 56.4 | 65.6 | 47.2 |
| 2013 | 53.9 | 62.6 | 45.1 |
| 2014 | 52.6 | 61.5 | 43.7 |
| 2015 | 55.6 | 64.9 | 46.2 |
| 2016 | 56.7 | 66.0 | 47.4 |
| 2017 | 57.0 | 66.0 | 47.9 |
| 2018 | 55.9 | 64.3 | 47.6 |
| 2019 | 56.3 | 65.3 | 47.3 |
| 2020 | 56.9 | 66.1 | 47.8 |
| 2021 | 56.6 | 65.8 | 47.5 |
| 2022 | 55.2 | 64.5 | 45.8 |
| 2023 | 57.0 | 66.8 | 47.2 |
| 2024 | 57.6 | 66.7 | 48.4 |
| 2025 | 55.8 | 65.0 | 46.6 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.