Add retrieval functions for daily precip, snow, and temperature data …

…from NOAA RCC ACIS (#1767)

* create acis.py and add get_acis_precipitation function

* add tests

* sphinx

* tweak

* better tests

* better whatsnew

* import in iotools/init

* fix all these broken things

* edits from review

* correct PR number

* split up code to be one function per dataset; add station functions

* fix tests

* Apply suggestions from code review

Co-authored-by: Adam R. Jensen <39184289+AdamRJensen@users.noreply.github.com>

* more from review

* add degree days to df descriptions

* add degree day columns to variable map

* fix valid daterange test oversight

* cm -> mm for snow variables

* revert back to cm for snow

---------

Co-authored-by: Adam R. Jensen <39184289+AdamRJensen@users.noreply.github.com>

docs/sphinx/source/reference/iotools.rst

@@ -37,6 +37,11 @@ of sources and file formats relevant to solar energy modeling.
    iotools.get_cams
    iotools.read_cams
    iotools.parse_cams
+   iotools.get_acis_prism
+   iotools.get_acis_nrcc
+   iotools.get_acis_mpe
+   iotools.get_acis_station_data
+   iotools.get_acis_available_stations
 
 A :py:class:`~pvlib.location.Location` object may be created from metadata
 in some files.

docs/sphinx/source/whatsnew/v0.9.6.rst

@@ -81,6 +81,11 @@ Enhancements
 * :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
+  from the NOAA's ACIS service: :py:func:`~pvlib.iotools.get_acis_prism`,
+  :py:func:`~pvlib.iotools.get_acis_nrcc`, :py:func:`~pvlib.iotools.get_acis_mpe`,
+  :py:func:`~pvlib.iotools.get_acis_station_data`, and
+  :py:func:`~pvlib.iotools.get_acis_available_stations`. (:issue:`1293`, :pull:`1767`)
 
 Bug fixes
 ~~~~~~~~~

pvlib/iotools/__init__.py

@@ -21,3 +21,8 @@
 from pvlib.iotools.sodapro import get_cams  # noqa: F401
 from pvlib.iotools.sodapro import read_cams  # noqa: F401
 from pvlib.iotools.sodapro import parse_cams  # noqa: F401
+from pvlib.iotools.acis import get_acis_prism  # noqa: F401
+from pvlib.iotools.acis import get_acis_nrcc  # noqa: F401
+from pvlib.iotools.acis import get_acis_mpe  # noqa: F401
+from pvlib.iotools.acis import get_acis_station_data  # noqa: F401
+from pvlib.iotools.acis import get_acis_available_stations  # noqa: F401