I can't get 2021 weather data from NOAA Integrated Surface Data (ISD)

Question

Previously we used the below sample code to retrieve NOAA actual weather data

***# This is a package in preview.
from azureml.opendatasets import NoaaIsdWeather
from datetime import datetime
from dateutil.relativedelta import relativedelta
end_date = datetime.today()
start_date = datetime.today() - relativedelta(months=1)

Get historical weather data in the past month.

isd = NoaaIsdWeather(start_date, end_date)

Read into Pandas data frame.

isd_df = isd.to_pandas_dataframe()***

But it seems that we can't get the data for 2021, can you help us to find out why?

Thanks a million!

Answer 1

@Julian Zhang It seems strange but if I use the start and end date within 2021 it seems to work.

# This is a package in preview.  
from azureml.opendatasets import NoaaIsdWeather  
  
from datetime import datetime  
from dateutil.relativedelta import relativedelta  
  
  
end_date = datetime.today() - relativedelta(days=1)  
start_date = datetime.today() - relativedelta(days=20)  
  
# Get historical weather data in the past month.  
isd = NoaaIsdWeather(start_date, end_date)  
# Read into Pandas data frame.  
isd_df = isd.to_pandas_dataframe()  

Seems like an issue with the NoaaIsdWeather() response from the API.