EarthStorm

Oklahoma/Kansas Climatological Maps

This series of color maps depict the climatology of Oklahoma and Kansas. The graphics can be used in conjunction with any of the lessons using Atmospheric Radiation Measurement (ARM) Program data. Maps include the mean annual temperature, precipitation and snowfall, number of days over 90 and 100 degrees, and normal date for the fall freeze and the spring thaw. A similar series of maps for Oklahoma alone can be found here.

Temperature

Mean annual temperature (°F)	13K
Mean annual number of days with high temperature of 100° F or higher	16K
Mean annual number of days with high temperature 90° F or higher	15K
Mean annual number of days with low temperature 32° F of lower	17K
Mean annual accumulation of heating degree-days	15K
Mean annual accumulation of cooling degree day	14K

Precipitation

Mean annual precipitation	24K
Mean annual snowfall	15K
Mean annual number of days with measureable precipitation	20K
Mean annual number of days with measureable precipitation and freezing temperatures	16K

Freezes

Mean length of the frost-free period	16K
Median date of the last hard freeze (28 F) of spring	16K
Median date of the first hard freeze (28 F) of autumn	16K
Date by which the first freeze of autumn occurred in 10% of the years 1961-1990	16K
Date by which the first freeze of autumn occurred in 50% of the years 1961-1990	16K
Date by which the first freeze of autumn occurred in 90% of the years 1961-1990	16K
Date by which the last freeze of spring occurred in 10% of the years 1961-1990	16K
Date by which the last freeze of spring occurred in 50% of the years 1961-1990	17K
Date by which the last freeze of spring occurred in 90% of the years 1961-1990	16K