High Pressure Center, January 16, 1882
A map from 1891 showing the typical weather conditions caused by a high pressure area centered over the Dakotas and Montana observed January 16, 1882....

Paths of Cyclonic Areas, January 1893
A U.S. Weather Bureau map of the United States showing the paths pursued by the centers of cyclonic storm events in January, 1893....

Paths of Anticyclonic Areas, January 1893
A U.S. Weather Bureau map of the United States showing the paths pursued by the centers of anticyclonic storm events in January, 1893....

Average Temperature, January 1896
A map from 1896 of the United States showing average temperatures for January given in degrees Fahrenheit....

Midwinter Humidity, January 1896
A map from 1896 of the United States showing the average absolute humidity for the month of January (midwinter), given in the number of grains of water per cubic foot of surface air....

Typical Air Pressure and Wind Direction, January 1896
A map from 1896 of the United States showing typical conditions of normal air pressure adjusted to sea level, and normal wind directions for January....

Paths of Cyclonic Areas, July 1893
A U.S. Weather Bureau map of the United States showing the paths pursued by the centers of cyclonic storm events in July, 1893....

Paths of Anticyclonic Areas, July 1893
A U.S. Weather Bureau map of the United States showing the paths pursued by the centers of anticyclonic storm events in July, 1893....

Hours of Maximum Wind, July 1896
A map from 1896 of the United States showing the mean hours of maximum surface wind for July....

Average Temperature, July 1896
A map from 1896 of the United States showing average temperatures for July given in degrees Fahrenheit....