pvlib · kandersolar · Nov 3, 2025 · Oct 28, 2025 · Oct 28, 2025 · Oct 28, 2025
diff --git a/docs/examples/system-models/plot_oedi_9068.py b/docs/examples/system-models/plot_oedi_9068.py
@@ -143,10 +143,12 @@
 
 keys = ['ghi', 'dni', 'dhi', 'temp_air', 'wind_speed',
         'albedo', 'precipitable_water']
-psm3, psm3_metadata = pvlib.iotools.get_psm3(latitude, longitude, api_key,
-                                             email, interval=5, names=2019,
-                                             map_variables=True, leap_day=True,
-                                             attributes=keys)
+psm3, psm3_metadata = pvlib.iotools.get_nsrdb_psm4_conus(latitude, longitude,
+                                                         api_key, email,
+                                                         year=2019, interval=5,
+                                                         parameters=keys,
+                                                         map_variables=True,
+                                                         leap_day=True)
 
 # %%
 # Pre-generate some model inputs

diff --git a/docs/sphinx/source/reference/iotools.rst b/docs/sphinx/source/reference/iotools.rst
@@ -81,9 +81,6 @@ Satellite-derived irradiance and weather data for the Americas.
    iotools.get_nsrdb_psm4_conus
    iotools.get_nsrdb_psm4_full_disc
    iotools.read_nsrdb_psm4
-   iotools.get_psm3
-   iotools.read_psm3
-   iotools.parse_psm3
 
 
 Commercial datasets

diff --git a/docs/sphinx/source/user_guide/extras/faq.rst b/docs/sphinx/source/user_guide/extras/faq.rst
@@ -52,15 +52,7 @@ Where can I get irradiance data for my simulation?
 
 pvlib has a module called iotools which has several functions for
 retrieving irradiance data as well as reading standard file formats
-such as EPW, TMY2, and TMY3. For free irradiance data, you may
-consider NREL's NSRDB which can be accessed using the
-:py:func:`pvlib.iotools.get_psm3` function and is available for
-North America. For Europe and Africa, you may consider looking into
-CAMS (:py:func:`pvlib.iotools.get_cams`).
-PVGIS (:py:func:`pvlib.iotools.get_pvgis_hourly`) is another option, which
-provides irradiance from several different databases with near global coverage.
-pvlib also has functions for accessing a plethora of ground-measured
-irradiance datasets, including the BSRN, SURFRAD, SRML, and NREL's MIDC.
+such as EPW, TMY2, and TMY3.  See :ref:`weatherdata`.
 
 
 Can I use PVsyst (PAN/OND) files with pvlib?

diff --git a/docs/sphinx/source/user_guide/modeling_topics/weather_data.rst b/docs/sphinx/source/user_guide/modeling_topics/weather_data.rst
@@ -112,7 +112,8 @@ online web APIs.  For example, :py:func:`~pvlib.iotools.get_pvgis_hourly`
 downloads data from PVGIS's webservers and returns it as a python variable.
 Functions that retrieve data from the internet are named ``get_``, followed
 by the name of the data source: :py:func:`~pvlib.iotools.get_bsrn`,
-:py:func:`~pvlib.iotools.get_psm3`, :py:func:`~pvlib.iotools.get_pvgis_tmy`,
+:py:func:`~pvlib.iotools.get_nsrdb_psm4_conus`,
+:py:func:`~pvlib.iotools.get_pvgis_tmy`,
 and so on.
 
 For satellite/reanalysis datasets, the location is specified by latitude and
@@ -121,7 +122,7 @@ longitude in decimal degrees:
 .. code-block:: python
 
     latitude, longitude = 33.75, -84.39  # Atlanta, Georgia, United States
-    df, metadata = pvlib.iotools.get_psm3(latitude, longitude, map_variables=True, ...)
+    df, metadata = pvlib.iotools.get_pvgis_tmy(latitude, longitude, map_variables=True, ...)
 
 
 For ground station networks, the location identifier is the station ID:

diff --git a/docs/sphinx/source/whatsnew/v0.10.0.rst b/docs/sphinx/source/whatsnew/v0.10.0.rst
@@ -109,9 +109,9 @@ Enhancements
   :py:func:`pvlib.iotools.get_pvgis_horizon`. (:issue:`1290`, :pull:`1395`)
 * Update the URL used in the :py:func:`pvlib.iotools.get_cams` function. The new URL supports load-balancing
   and redirects to the fastest server. (:issue:`1688`, :pull:`1740`)
-* :py:func:`pvlib.iotools.get_psm3` now has a ``url`` parameter to give the user
+* :py:func:`!pvlib.iotools.get_psm3` now has a ``url`` parameter to give the user
   the option of controlling what NSRDB endpoint is used. (:pull:`1736`)
-* :py:func:`pvlib.iotools.get_psm3` now uses the new NSRDB 3.2.2 endpoint for
+* :py:func:`!pvlib.iotools.get_psm3` now uses the new NSRDB 3.2.2 endpoint for
   hourly and half-hourly single-year datasets. (:issue:`1591`, :pull:`1736`)
 * The default solar position algorithm (NREL SPA) is now 50-100% faster. (:pull:`1748`)
 * Added functions to retrieve daily precipitation, temperature, and snowfall data
@@ -146,7 +146,7 @@ Testing
 Documentation
 ~~~~~~~~~~~~~
 * Updated the description of the interval parameter in
-  :py:func:`pvlib.iotools.get_psm3`. (:issue:`1702`, :pull:`1712`)
+  :py:func:`!pvlib.iotools.get_psm3`. (:issue:`1702`, :pull:`1712`)
 * Fixed outdated nbviewer links. (:issue:`1721`, :pull:`1726`)
 
 

diff --git a/docs/sphinx/source/whatsnew/v0.10.2.rst b/docs/sphinx/source/whatsnew/v0.10.2.rst
@@ -28,7 +28,7 @@ Enhancements
 
 Bug fixes
 ~~~~~~~~~
-* :py:func:`~pvlib.iotools.get_psm3` no longer incorrectly returns clear-sky
+* :py:func:`!pvlib.iotools.get_psm3` no longer incorrectly returns clear-sky
   DHI instead of clear-sky GHI when requesting ``ghi_clear``. (:pull:`1819`)
 * :py:func:`pvlib.singlediode.bishop88` with ``method='newton'`` no longer
   crashes when passed ``pandas.Series`` of length one.

diff --git a/docs/sphinx/source/whatsnew/v0.10.3.rst b/docs/sphinx/source/whatsnew/v0.10.3.rst
@@ -29,7 +29,7 @@ Bug fixes
 * Fixed CAMS error message handler in
   :py:func:`pvlib.iotools.get_cams`. (:issue:`1799`, :pull:`1905`)
 * Fix mapping of the dew point column to ``temp_dew`` when ``map_variables``
-  is True in :py:func:`pvlib.iotools.get_psm3`. (:pull:`1920`)
+  is True in :py:func:`!pvlib.iotools.get_psm3`. (:pull:`1920`)
 * Fix :py:class:`pvlib.modelchain.ModelChain` to use attribute `clearsky_model`.
   (:pull:`1924`)
 

diff --git a/docs/sphinx/source/whatsnew/v0.11.0.rst b/docs/sphinx/source/whatsnew/v0.11.0.rst
@@ -14,10 +14,10 @@ Breaking changes
 * ``pvlib.iotools.read_srml_month_from_solardat`` was deprecated in v0.10.0 and has
   now been completely removed. The function is replaced by :py:func:`~pvlib.iotools.get_srml()`.
   (:pull:`1779`, :pull:`1989`)
-* The ``leap_day`` parameter in :py:func:`~pvlib.iotools.get_psm3`
+* The ``leap_day`` parameter in :py:func:`!pvlib.iotools.get_psm3`
   now defaults to True instead of False. (:issue:`1481`, :pull:`1991`)
-* :py:func:`~pvlib.iotools.get_psm3`, :py:func:`~pvlib.iotools.read_psm3`, and
-  :py:func:`~pvlib.iotools.parse_psm3` all now have ``map_variables=True`` by
+* :py:func:`!pvlib.iotools.get_psm3`, :py:func:`!pvlib.iotools.read_psm3`, and
+  :py:func:`!pvlib.iotools.parse_psm3` all now have ``map_variables=True`` by
   default. (:issue:`1425`, :pull:`2094`)
 * The deprecated ``ivcurve_pnts`` parameter of :py:func:`pvlib.pvsystem.singlediode`
   is removed. Use :py:func:`pvlib.pvsystem.v_from_i` and

diff --git a/docs/sphinx/source/whatsnew/v0.13.0.rst b/docs/sphinx/source/whatsnew/v0.13.0.rst
@@ -28,7 +28,7 @@ Deprecations
   :pull:`2467`, :pull:`2466`)
 
   - :py:func:`~pvlib.iotools.parse_epw`
-  - :py:func:`~pvlib.iotools.parse_psm3`
+  - :py:func:`!pvlib.iotools.parse_psm3`
   - :py:func:`~pvlib.iotools.parse_cams`
   - :py:func:`~pvlib.iotools.parse_bsrn`
 

diff --git a/docs/sphinx/source/whatsnew/v0.13.2.rst b/docs/sphinx/source/whatsnew/v0.13.2.rst
@@ -6,6 +6,9 @@ v0.13.2 (Anticipated December, 2025)
 
 Breaking Changes
 ~~~~~~~~~~~~~~~~
+* Following the removal of the NSRDB PSM3 API, the :func:`!pvlib.iotools.get_psm3`,
+  :func:`!pvlib.iotools.read_psm3`, and :func:`!pvlib.iotools.parse_psm3`
+  functions are removed. (:issue:`2581`, :pull:`2582`)
 
 
 Deprecations

diff --git a/docs/sphinx/source/whatsnew/v0.7.0.rst b/docs/sphinx/source/whatsnew/v0.7.0.rst
@@ -148,7 +148,7 @@ Enhancements
   diode model fitting function '6parsolve' from NREL's System Advisor Model.
 * Add :py:func:`~pvlib.ivtools.fit_sdm_desoto`, a method to fit the De Soto single
   diode model to the typical specifications given in manufacturers datasheets.
-* Add `timeout` to :py:func:`pvlib.iotools.get_psm3`.
+* Add `timeout` to :py:func:`!pvlib.iotools.get_psm3`.
 * Add :py:func:`~pvlib.scaling.wvm`, a port of the wavelet variability model for
   computing reductions in variability due to a spatially distributed plant.
 * Add :py:meth:`~pvlib.location.Location.from_epw`, a method to create a Location

diff --git a/docs/sphinx/source/whatsnew/v0.7.1.rst b/docs/sphinx/source/whatsnew/v0.7.1.rst
@@ -5,8 +5,8 @@ v0.7.1 (January 17, 2020)
 
 Enhancements
 ~~~~~~~~~~~~
-* Added :py:func:`~pvlib.iotools.read_psm3` to read local NSRDB PSM3 files and
-  :py:func:`~pvlib.iotools.parse_psm3` to parse local NSRDB PSM3 file-like
+* Added :py:func:`!pvlib.iotools.read_psm3` to read local NSRDB PSM3 files and
+  :py:func:`!pvlib.iotools.parse_psm3` to parse local NSRDB PSM3 file-like
   objects. (:issue:`841`)
 * Added `leap_day` parameter to `iotools.get_psm3` instead of hardcoding it as
   False.

diff --git a/docs/sphinx/source/whatsnew/v0.8.0.rst b/docs/sphinx/source/whatsnew/v0.8.0.rst
@@ -19,7 +19,7 @@ Breaking changes
 
 * :py:func:`pvlib.iotools.read_tmy3` can now only read local data files because
   the NREL RREDC server hosting the TMY3 dataset has been retired. For
-  fetching TMY data from NREL servers, :py:func:`pvlib.iotools.get_psm3` is
+  fetching TMY data from NREL servers, :py:func:`!pvlib.iotools.get_psm3` is
   now recommended to retrieve newer PSM3 data over the older TMY3 data.
   (:issue:`996`) (:pull:`1004`)
 

diff --git a/docs/sphinx/source/whatsnew/v0.8.1.rst b/docs/sphinx/source/whatsnew/v0.8.1.rst
@@ -24,7 +24,7 @@ Enhancements
   10 minutes. (:pull:`1074`)
 * Added :py:func:`pvlib.inverter.sandia_multi` and :py:func:`pvlib.inverter.pvwatts_multi`
   for modeling inverters with multiple MPPTs (:issue:`457`, :pull:`1085`, :pull:`1106`)
-* Added optional ``attributes`` parameter to :py:func:`pvlib.iotools.get_psm3`
+* Added optional ``attributes`` parameter to :py:func:`!pvlib.iotools.get_psm3`
   and added the option of fetching 5- and 15-minute PSM3 data. (:pull:`1086`)
 * Added :py:func:`pvlib.irradiance.campbell_norman` for estimating DNI, DHI and GHI
   from extraterrestrial irradiance. This function replaces ``pvlib.irradiance.liujordan``;

diff --git a/docs/sphinx/source/whatsnew/v0.9.0.rst b/docs/sphinx/source/whatsnew/v0.9.0.rst
@@ -50,7 +50,7 @@ Breaking changes
   :py:meth:`~pvlib.pvsystem.PVSystem.calcparams_cec` (:issue:`1118`, :pull:`1222`)
 
 * Switched the order of the outputs from the PSM3 iotools, notably
-  :py:func:`~pvlib.iotools.get_psm3` and :py:func:`~pvlib.iotools.read_psm3`
+  :py:func:`!pvlib.iotools.get_psm3` and :py:func:`!pvlib.iotools.read_psm3`
   (:issue:`1245`, :pull:`1268`)
 
 * Changed the naming of the inputs ``startdate``/``enddate`` to ``start``/``end`` in
@@ -223,7 +223,7 @@ Documentation
   and to make the procedural and OO results match exactly. (:issue:`1116`, :pull:`1144`)
 * Add a gallery example showing how to appropriately use interval-averaged
   weather data for modeling. (:pull:`1152`)
-* Update documentation links in :py:func:`pvlib.iotools.get_psm3` (:pull:`1169`)
+* Update documentation links in :py:func:`!pvlib.iotools.get_psm3` (:pull:`1169`)
 * Use ``Mount`` classes in ``introtutorial`` and ``pvsystem`` docs pages (:pull:`1267`)
 * Clarified how statistics are calculated for :py:func:`pvlib.clearsky.detect_clearsky`
   (:issue:`1070`, :pull:`1243`)

diff --git a/docs/sphinx/source/whatsnew/v0.9.1.rst b/docs/sphinx/source/whatsnew/v0.9.1.rst
@@ -18,8 +18,8 @@ Deprecations
 
 Enhancements
 ~~~~~~~~~~~~
-* Added ``map_variables`` option to :py:func:`pvlib.iotools.get_psm3` and
-  :py:func:`pvlib.iotools.read_psm3` (:pull:`1374`)
+* Added ``map_variables`` option to :py:func:`!pvlib.iotools.get_psm3` and
+  :py:func:`!pvlib.iotools.read_psm3` (:pull:`1374`)
 * Added ``pvlib.bifacial.infinite_sheds``, containing a model for irradiance
   on front and back surfaces of bifacial arrays. (:pull:`717`)
 * Added ``map_variables`` option to :func:`~pvlib.iotools.read_crn` (:pull:`1368`)

diff --git a/docs/sphinx/source/whatsnew/v0.9.2.rst b/docs/sphinx/source/whatsnew/v0.9.2.rst
@@ -35,7 +35,7 @@ Bug fixes
   timestamps as either 24:00 (which is the standard) as well as 00:00.
   Previously 00:00 timestamps would incorrectly be moved one day forward.
   (:pull:`1494`)
-* :py:func:`pvlib.iotools.get_psm3` now raises a deprecation warning if
+* :py:func:`!pvlib.iotools.get_psm3` now raises a deprecation warning if
   the ``leap_day`` parameter is not specified in a single-year request.
   Starting in pvlib 0.11.0 ``leap_day`` will default to True instead of False.
   (:issue:`1481`, :pull:`1511`)

diff --git a/docs/sphinx/source/whatsnew/v0.9.5.rst b/docs/sphinx/source/whatsnew/v0.9.5.rst
@@ -44,7 +44,7 @@ Bug fixes
   incorrect loss results for systems that are near the ground. (:issue:`1636`,
   :pull:`1653`)
 * Fixed incorrect mapping of requested parameters names when using
-  :py:func:`pvlib.iotools.get_psm3`.
+  :py:func:`!pvlib.iotools.get_psm3`.
   Also fixed the random reordering of the dataframe columns.
   (:issue:`1629`, :issue:`1647`, :pull:`1648`)
 * When using ``utc_time_range`` with :py:func:`pvlib.iotools.read_ecmwf_macc`,

diff --git a/pvlib/iotools/__init__.py b/pvlib/iotools/__init__.py
@@ -8,9 +8,6 @@
 from pvlib.iotools.crn import read_crn  # noqa: F401
 from pvlib.iotools.solrad import read_solrad  # noqa: F401
 from pvlib.iotools.solrad import get_solrad  # noqa: F401
-from pvlib.iotools.psm3 import get_psm3  # noqa: F401
-from pvlib.iotools.psm3 import read_psm3  # noqa: F401
-from pvlib.iotools.psm3 import parse_psm3  # noqa: F401
 from pvlib.iotools.psm4 import get_nsrdb_psm4_aggregated  # noqa: F401
 from pvlib.iotools.psm4 import get_nsrdb_psm4_tmy  # noqa: F401
 from pvlib.iotools.psm4 import get_nsrdb_psm4_conus  # noqa: F401