1. ISU Soil Moisture Network
  2. Daily Download
Legacy "ISU AgClimate" 1986-~2013
Hourly Data
Daily Data
"ISU Soil Moisture Network" ~2013-present
Hourly Data
Inversion Data
  Daily Data

Daily Data Request Form:

Information: This interface accesses the archive of daily weather data collected from the Iowa State Agclimate Automated Weather stations. Please select the stations and weather variables desired below.

Data Interval:Currently you are selected to download daily data. You may wish to change this to hourly data.

Backend documentation exists for those wishing to script against this data service.

Select station(s):

View station metadata





























Select the time interval:

When selecting the time interval, make sure you that choose * valid * dates.
Year:Month:Day:
Starting On:
Ending On:

Options:

Select from available variables


Base (°F): Ceiling (°F):









More Info














Vineyard Station-only Variables
Sorry for the cryptic labels, this is a current work in progress.








The Ames-AEA, Ames-Kitchen, and Jefferson locations have the CS SoilVue 10 installed.

View on web browser or  

How should the data be formatted?:  

How should missing values be represented?:

Submit your request:

Meaning of Data Columns

station
National Weather Service Location Identifier for the site. This is a five character identifier.
valid
Date of the observation
high
High Temperature [F]
low
Low Temperature [F]
rh
Average Relative Humidity [%]
rh_max
Maximum Relative Humidity based on hourly observations [%]
rh_min
Minimum Relative Humidity based on hourly observations [%]
gdd50
Growing Degree Days [F]
solar
Solar Radiation [J/m^2]
precip
Precipitation [inch]
speed
Average Wind Speed [mph], 10 minute average, 10 ft above ground
gust
Peak Wind Gust [mph], 10 minute average, 10 ft above ground
et
Evapotranspiration [inch]
soil04tn
Daily Low 4 inch Depth Soil Temperature [F]
soil04t
Daily Average 4 inch Depth Soil Temperature [F]
soil04tx
Daily High 4 inch Depth Soil Temperature [F]
soil12tn
Daily Low 12 inch Depth Soil Temperature [F]
soil12t
Daily Average 12 inch Depth Soil Temperature [F]
soil12tx
Daily High 12 inch Depth Soil Temperature [F]
soil24tn
Daily Low 24 inch Depth Soil Temperature [F]
soil24t
Daily Average 24 inch Depth Soil Temperature [F]
soil24tx
Daily High 24 inch Depth Soil Temperature [F]
soil50tn
Daily Low 50 inch Depth Soil Temperature [F]
soil50t
Daily Average 50 inch Depth Soil Temperature [F]
soil50tx
Daily High 50 inch Depth Soil Temperature [F]
soil12vwc
Average 12 inch Depth Soil Volumetric Water Content [%]
soil24vwc
Average 24 inch Depth Soil Volumetric Water Content [%]
soil50vwc
Average 50 inch Depth Soil Volumetric Water Content [%]

Publications Citing IEM Data

These are publications that have cited the usage of data from this page. This list is not exhaustive, so please let us know if you have a publication that should be added. Hopefully by early 2025, this listing can be more complete.