diff --git a/var/spack/repos/builtin/packages/cprnc/package.py b/var/spack/repos/builtin/packages/cprnc/package.py
new file mode 100644
index 0000000000..190c375d69
--- /dev/null
+++ b/var/spack/repos/builtin/packages/cprnc/package.py
@@ -0,0 +1,21 @@
+# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class Cprnc(CMakePackage):
+    """CPRNC is a netcdf file comparison tool used by CESM
+    and other scientific programs."""
+
+    url = "https://github.com/ESMCI/cprnc/archive/refs/tags/v1.0.1.tar.gz"
+    homepage = "https://github.com/ESMCI/cprnc"
+
+    maintainers("jedwards4b", "billsacks")
+
+    version("1.0.1", sha256="19517b52688f5ce40c385d7a718e06bf88a8731335943bc32e2b8410c489d6eb")
+
+    depends_on("netcdf-fortran")
+    depends_on("cmake@3:", type="build")