Maryland State Climatologist Office

Cecil County, Maryland
1895-2023

The following figures display the historical data for Cecil County, Maryland from 1985 to 2023. The figures display time series of area-averaged surface air mean, maximum, minimum temperatures and total precipitation over the county at annual, seasonal and monthly resolutions with supperposed linear trends for the whole period (1895 - 2023) and for the 21st century period (2000-2023). A summary figure of the monthly trends for the whole period is inlcuded at the bottom.

The figures are created from NCEI's NClimDiv data set, v1.0.0. Data labeled as scaled on December 9, 2024.

Cecil County Temperatures (°F) & Total Precipitation (in)
1895-2023

Annual

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Statewide
Annual

Seasonal

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Winter
Winter
Spring
Spring
Summer
Summer
Fall
Fall

Monthly

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December
December
March
March
June
June
September
September
×
January
January
April
April
July
July
October
October
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February
February
May
May
August
August
November
November

Monthly Trends, 1895-2023

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Monthly Trends
Monthly Trends


Note:The thick black continuos line shows the 1895-2023 linear trend, and the thick red continuos line shows the 2000-2023 linear trend. The thin black line marks the 1895-2023 mean, while the dashed grey lines show the standard deviation (SD) above and below the mean. Trends that are statistically significant at the 95% level (Student’s t-test −Santer et al. 2000) are labeled with a black "s" in the time series and a white "s" in the bar graphs; no significat trends in the time series are labeled with a black "ns" while those in the bar graphs are not labeled.


References
  • Santer, B. D., and co-authors, 2000: Statistical significance of trends and trend differences in layeraveraged atmospheric temperature time series. J. Geophys. Res., 105, 7337–7356. DOI:10.1029/1999JD901105.
  • Vose, R. S., S. Applequist, M. Squires, I. Durre, M. J. Menne, C. N. Jr, Williams, C. Fenimore, K. Gleason, and D. Arndt, 2014. NOAA Monthly U.S. Climate Gridded Dataset (NClimGrid), Version 3. NOAA National Centers for Environmental Information. DOI:10.7289/V5SX6B56.