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Weather and Climate Collections

U.S. Daily Weather Maps

Use the search box below to identify maps for a specific timeframe. 

Two ways to search:
  • The general search box (above the table and to the right) searches all fields (including the Filename(s) and Date field) for each map.
  • Each column also has its own search box (above the column header) that is specific to that field.
    • The Date field uses the full name of the month (e.g., "1901 December 05")
    • The Djvu Link and PDF Link fields use the filename in the format yyyymmdd (e.g., "19041120.djvu" or "20041227-20050102.pdf").
      Please note that a few selected dates may not have both file formats available.
Search tips
  • Daily Maps (April 1871 to April 1968):
    • To retrieve an exact file, perform a general search using digits only: the full digit year, two-digit month, and two-digit day (e.g., "19640506" for April 6, 1964).  This may also be performed as a search in the Djvu link column.
      • Alternate instructions:
        If searching in the Date field, please search the 4-digit year, name of month, and two-digit day instead (e.g., "1964 April 06").
    • To list maps for a larger span of time, enter a partial date in the general search or Djvu link search (e.g., "1962051" to see maps for April 10-19, 1962).
  • Weekly Maps (May 1968 to December 2002):
    • Search for the 4-digit year and name of month only (e.g., "1968 November") to see all maps available for that month or parts of that month.  (This searches the Date field, and is best for matching against the weekly maps.)
    • More specific searches may not retrieve a file if the timespan of the map does not begin or end on your specified date.
    • If the listing is not already in chronological order, you can sort the table on "PDF Link" (by clicking the small gray down arrow above the column, after you search)
  • Recent Weather Maps (January 2003 to present):
Viewing Files

If viewing weather maps in the Djvu file format, this requires the free DjVu plugin, DjVu Libre. The plug-in is available for Windows, MacOS, and Unix.

NOTE: Some PDF versions of the weather maps can be substantially larger than the Djvu versions. If you are downloading a series of weather maps, you may want to consider downloading the Djvu versions.


Date Djvu File Size (MB) Djvu Link PDF File Size (MB) PDF Link


History of the Daily Weather Map

The U.S. Signal Office began publishing weather maps as the War Department Maps on Jan. 1, 1871. When the meteorological activities of the Signal Corps were transferred to the newly-created Weather Bureau in 1891, the title of the weather map changed to the Department of Agriculture Weather Map. In 1913, the title became simply Daily Weather Map. In 1969, the Weather Bureau began publishing a weekly compilation of daily maps with the title Daily Weather Maps (Weekly series).

The earliest weather maps featured only a map of the continental U.S. with the day's air temperature, barometric pressure, wind velocity and direction, and a general indication of the weather for various cities around the country plotted directly on the map.

Within a short time the Signal Office added a table showing the change in barometric pressure during the most recent 8 hours, the temperature change within the most recent 24 hours, relative humidity, and total precipitation within the most recent 24 hours. The Signal Office also added a general discussion of synoptic weather features and forecast, and then isobars and isotherms, on the maps. By the end of 1872 the map had acquired the format it would use for the rest of its run.

The daily weather maps for the period January 1 - August 6, 1914, also include a Northern Hemisphere map with data table.