Backend Documentation exists for those that wish to script against this service.
This command and URL should replicate your current form selections:
curl 'https://mesonet.agron.iastate.edu/cgi-bin/request/uscrn.py?network=USCRN&year1=2025&month1=1&day1=1&hour1=0&minute1=0&year2=2025&month2=8&day2=13&hour2=0&minute2=0&what=txt&delim=comma' -o changeme.txt
If you selected 'Delimited Text File' above, how do you want the values separated in the downloaded file?
utc_valid - Observation timestamp in UTC station - Station identifier tmpc - Air Temperature [C] precip_mm - Precipitation [mm] srad - Solar Radiation [Wm2] srad_flag - Flag skinc skinc_flag skinc_type rh rh_flag vsm5 soilc5 wetness wetness_flag wind_mps wind_mps_flag