diff --git a/ww3/get_ww3.py b/ww3/get_ww3.py
index 13eafea..be91905 100644
--- a/ww3/get_ww3.py
+++ b/ww3/get_ww3.py
@@ -19,14 +19,16 @@ product_code = 'ww3.aus_4m'
 var_names = ['hs', 'dp', 'fp']
 
 # Set time period
-start_date = '1980-01-01'
-end_date = '2019-01-01'
+start_date = '1980-01'
+end_date = '1980-12'
 
 url = ('http://data-cbr.csiro.au/thredds/dodsC/catch_all/'
        'CMAR_CAWCR-Wave_archive/CAWCR_Wave_Hindcast_aggregate/gridded/')
 
 # Generate list of dates
-dates = pd.date_range(start_date, end_date, freq='M')
+t0 = pd.to_datetime(start_date)
+t1 = pd.to_datetime(end_date) + pd.DateOffset(months=1)
+dates = pd.date_range(t0, t1, freq='M')
 
 # Create output dataframe
 master = pd.DataFrame()