http://bolin.su.se/data/stockholm-historical-daily-temperature-1 Anders Moberg Bolin Centre Database 2019 Datafile Atmosphere Weather observations Air temperature Daily data Early instrumental data Homogenized data Sweden Stockholm Earth science > Atmosphere > Atmospheric temperature > Surface temperature > Air temperature Anders Moberg 2019-08-02T16:54:07+00:00 English 1 None Data are provided in a single file having 7 columns, available in two file formats:<p> 1. plain text file (.txt)<p> 2. tab-separated value file (.tsv)</p> <p> File content:</p> <p> Column 1: Year<p> Column 2: Month<p> Column 3: Date<p> Column 4: Non-homogenized daily mean temperature according to the observations.<p> Column 5: Homogenized daily mean temperature, adjusted after 1870 to account for the urban heat island effect and with some gaps filled in using data from Uppsala.<p> Column 6: Homogenized daily mean temperature, as in column 5, but with additional adjustment before 1859 to correct for a supposed warm bias of May–August temperatures.<p> Column 7: Data source ID code, identifying data from: (1) Stockholm, manual observations, (2) Uppsala, adjusted to represent Stockholm, (3) Stockholm, automatic weather station (used from 2013 onwards).</p> <p> Temperature unit: °C. Code for missing values: -999.</p> <p> The dataset also includes correction values used to adjust daily mean temperatures in the most recent years (after 1998), in order to derive the homogenized temperature data in columns 5 and 6 from the non-homogenized data in column 4.</p> <p> Further information about the data file content is found in a README text file.