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Lewes city, Delaware

Official LSAD Designation: Lewes city • Census GEOID: 1041830 • Sussex County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Lewes city.

Reference Weather Station: LEWES, DE US (ID: USC00075320) • Located 0.9 miles from community center • Elevation: 3.0 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 46.2° 30.2° 38.2° 3.38"
February 48.1° 31.9° 40.0° 3.17"
March 55.2° 37.5° 46.3° 4.21"
April 66.2° 46.4° 56.3° 3.45"
May 74.6° 56.0° 65.3° 3.38"
June 83.4° 65.7° 74.5° 3.77"
July 87.7° 70.6° 79.2° 4.95"
August 85.5° 69.2° 77.3° 4.31"
September 79.6° 63.7° 71.7° 4.49"
October 69.3° 52.4° 60.9° 4.41"
November 58.7° 42.2° 50.4° 3.59"
December 49.9° 35.0° 42.4° 4.17"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station LEWES, DE US (ID: USC00075320) • 0.9 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at LEWES, DE 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. 46.0 51.8 57.5 63.3 69.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2020: Annual mean 58.2°F 2021: Annual mean 58.1°F 2022: Annual mean 57.1°F 2023: Annual mean 58.5°F 2024: Annual mean 58.5°F 2025: Annual mean 56.7°F 2020: Annual mean of daily highs 66.0°F 2021: Annual mean of daily highs 66.0°F 2022: Annual mean of daily highs 65.3°F 2023: Annual mean of daily highs 66.2°F 2024: Annual mean of daily highs 66.2°F 2025: Annual mean of daily highs 64.4°F 2020: Annual mean of daily lows 50.5°F 2021: Annual mean of daily lows 50.2°F 2022: Annual mean of daily lows 48.8°F 2023: Annual mean of daily lows 50.8°F 2024: Annual mean of daily lows 50.8°F 2025: Annual mean of daily lows 49.1°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 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 Unavailable Unavailable Unavailable
2020 58.2 66.0 50.5
2021 58.1 66.0 50.2
2022 57.1 65.3 48.8
2023 58.5 66.2 50.8
2024 58.5 66.2 50.8
2025 56.7 64.4 49.1
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.