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Jefferson CDP, Maryland

Official LSAD Designation: Jefferson CDP • Census GEOID: 2442350 • Frederick County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Jefferson CDP.

Reference Weather Station: FREDERICK POLICE BRKS, MD US (ID: USC00183348) • Located 6.5 miles from community center • Elevation: 115.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 43.1° 26.5° 34.8° 2.58"
February 47.8° 28.5° 38.2° 2.95"
March 55.3° 35.6° 45.5° 3.71"
April 68.6° 44.7° 56.7° 3.55"
May 77.4° 55.0° 66.2° 3.99"
June 85.2° 63.3° 74.2° 4.26"
July 88.6° 68.4° 78.5° 3.90"
August 86.7° 66.4° 76.5° 2.89"
September 80.0° 59.3° 69.7° 5.80"
October 68.8° 47.2° 58.0° 3.26"
November 56.3° 37.8° 47.1° 2.66"
December 47.1° 30.7° 38.9° 3.97"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station SHARPSBURG 5 S, MD US (ID: USC00188207) • 9.9 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00183348), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at SHARPSBURG 5 S, MD US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 38.0 45.8 53.5 61.3 69.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2013: Annual mean 52.2°F 2015: Annual mean 52.8°F 2017: Annual mean 54.4°F 2019: Annual mean 53.6°F 2020: Annual mean 54.4°F 2021: Annual mean 54.2°F 2013: Annual mean of daily highs 63.4°F 2015: Annual mean of daily highs 64.5°F 2017: Annual mean of daily highs 65.9°F 2019: Annual mean of daily highs 65.0°F 2020: Annual mean of daily highs 65.9°F 2021: Annual mean of daily highs 65.7°F 2013: Annual mean of daily lows 41.1°F 2015: Annual mean of daily lows 41.0°F 2017: Annual mean of daily lows 42.9°F 2019: Annual mean of daily lows 42.3°F 2020: Annual mean of daily lows 42.9°F 2021: Annual mean of daily lows 42.7°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 Unavailable Unavailable Unavailable
2011 Unavailable Unavailable Unavailable
2012 Unavailable Unavailable Unavailable
2013 52.2 63.4 41.1
2014 Unavailable Unavailable Unavailable
2015 52.8 64.5 41.0
2016 Unavailable Unavailable Unavailable
2017 54.4 65.9 42.9
2018 Unavailable Unavailable Unavailable
2019 53.6 65.0 42.3
2020 54.4 65.9 42.9
2021 54.2 65.7 42.7
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.