Left Click Map Below to Select Location

    Closest Five
    Mesonet Stations

Elevation (ft.)

Left Click and Drag Date Markers to Set Begin and End Dates of Summation Periods

Select Precipitation Variable

The “Select Precipitation Variable’ dropdown control allows you to plot three variables:
  • An average of the cumulative precipitation for the 5 nearest mesonet stations calculated for the current year (plotted in white) and for each of the past 10 years.

  • The current year’s average cumulative precipitation for the 5 nearest stations, and the cumulative precipitation traces for each of the 5 stations. The current year's 5 station average is plotted as a thick white line.

  • The total precipitation for the period defined by the calendar control date markers for each of the 5 nearest stations during the current year and each of the previous 10 years. If either of the date markers are set for a day after the current date, the rainfall totals for the current year are not displayed.

  • If the mouse is hovered over any of the graphs, the numeric values of the plotted data, and their dates or years, will be displayed in a table to the right of the graph.

    For questions or comments about this website contact: steven.mauget@ars.usda.gov

Select Temperature Variable

Select GDD Threshold

Select Hard Freeze Duration

The “Select Temperature Variable’ dropdown control allows you to plot six variables:
  • A ten-day running average of the daily soil temperature at ~8 inches depth for the 5 nearest mesonet stations. The current year is plotted in white, and the previous ten years in color.

  • An average of the daily minimum temperature for the 5 closest mesonet stations during the current year and the last ten years.

  • An average of the daily maximum temperature for the 5 closest mesonet stations during the current year and the last ten years.

  • An average of the cumulative growing degree days (GDD) for the 5 nearest mesonet stations for the current year and for each of the past 10 years. When this graph is displayed a second dropdown list becomes visible, which can be used to display GDD for cotton or corn.

  • An average of the cumulative hard freeze hours for the 5 nearest mesonet stations for each of the past 10 winters and for the current year. At each station, a day's hard freeze hours are equal to the total number of hours when the temperature was below 28 F°.

  • Estimated first freeze dates based on the first day that the average number of daily freeze hours at the 5 stations exceeded 2 hours during the past ten years. When this graph is displayed a second dropdown list becomes visible, which can be used change the first hard freeze duration threshhold to 4,6, or 8 hours.
Except for the first freeze date graph, hovering the mouse over any of the graphs causes the numeric values of the plotted data, and their dates or years, to be displayed in a table to the right of the graph.

For questions or comments about this website contact: steven.mauget@ars.usda.gov
The current drought outlook summary for the Southern Plains area from the U.S. Drought Monitor. The U.S. Climate Prediction Center’s extended range and long-lead outlooks for U.S. precipitation and temperature. Cotton Irrigation Tool. A web application for estimating cotton profitability under dryland and pivot-irrigated systems. Ogallala Agro-Climate Tool. A Visual Basic application that estimates irrigation demand and crop water use over the Ogallala Aquifer region based on 1976-2005 weather data.

Questions or Comments?   Return to West Texas Mesonet
This web application displays data from 35 West Texas Mesonet weather stations, which are marked as black dots on the map. The app is based on each station's daily data during the current year and the past ten years, and each day at 2 A.M. the previous calendar day's data for each station is added to the app's database. This lets users compare the current year's up-to-date variation in agriculturally important weather variables with variation during the previous ten years. After a user selects a location on the map, the application calculates and displays weather variables based on data from the 5 closest mesonet stations. Descriptions of these variables can be found by hovering the mouse over the '?' icons on the Mesonet Precipitation and Mesonet Temperature tabs. To use the app, the user selects a location and selects a time period during which weather variables are calculated and displayed.

Select a Location: Left click on the map to select a location close to your farm. It's not necessary to select an exact location, as the application only uses the selected latitude-longitude coordinate to find the 5 closest mesonet stations. Once a location is selected, the temperature and precipitation graphs plotted on the Mesonet Precipitation and Mesonet Temperature tabs are, for the most part, averages of data from the five mesonet stations listed to the right of the map. To zoom on the map, use the zoom control on the upper left or your mouse's scroll wheel. To pan across the map left click and drag the mouse on the map.

Select a Time Period: Left clicking and dragging the date markers on the calendar slider control below the map changes the period over which data is displayed on the Mesonet Precipitation and Mesonet Temperature tabs. For accumulated variables, i.e., growing degree days and total precipitation, this changes the period over which the accumulation is calculated and also has a visual zooming effect. So, changing the date markers to May 15 and Sep 15 would show precipitation totals summed from rainfall events after May 15. For weather variables that are not summed, e.g., daily minimum, maximum, and soil temperatures, adjusting the date markers only has a visual zooming effect. For a zoom-only effect on the graphs, left click on the graph itself and drag to the left or right to define the period you want to display. After that, double clicking on the graph will return the graph to its previous viewing period.

The National Weather Service Forecast Tab links to a scrolling webpage that shows current 48 hour forecast information for either Amarillo, Lubbock, or Midland TX, depending upon the latitude of the location selected by the user via the map control.

The ‘Other Resources’ Tab provides links to other web-based climate and crop management resources including the U.S. Drought Monitor, the U.S. Climate Prediction Center, a JavaScript tool for cotton irrigation management, and the Visual Basic Ogallala Agro-Climate Tool.

For questions or comments about this website contact: steven.mauget@ars.usda.gov