A Cyclone in the United States, 1898
A cyclone in North America. "The effect of a cyclonic storm upon the weather is illustrated by the chart The point of the heavy arrow lies in a storm center, around and into which the winds are whirling, as shown by the light arrows. To the east of the center the winds come from the south and southeast and make the weather warm [on the western side of the storm the winds come from the north] these winds bring cool or cold weather to that region The storm center is moving all the time thus, as the storm drifts rapidly eastward over the country, it pushes warmer weather along in front of it, and drags colder weather along in its rear.

Absolute Minimum Temperatures,
A map showing the absolute minimum temperatures in the United States.

Air Pressure and Wind Direction, 1896
Normal air pressure at sea level, and normal wind direction, for January.

Air Pressure and Wind Direction, 1896
Normal air pressure at sea level, and normal wind direction, for July.

Annual Rainfall, 1896
Average annual rainfall in the United States, in inches.

Annual Snowfall, 1896
Average annual snowfall in the United States (depth in inches).

Average Annual Rainfall, 1916
A 1916 map showing the average annual rainfall in the United States.

Average Humidity,
A map showing the average annual humidity of the air in the United States.

Average Temperature, 1896
Average temperatures for January in the United States.

Average Temperature, 1896
Average temperature for July in the United States.