No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
netcdf4 has 4.4M monthly downloads and 830 GitHub stars. Version 1.7.4 supports Python 3.10+, first published in 2006.
It is stably maintained under a permissive license, last released in Jan 2026.
It is built on top of certifi, cftime and numpy. It is used by 1,476 tracked packages, including arm-pyart, xradar and ai-wq-package.
GitHub topics include netcdf and netcdf4.
Package Insights
Package Risks
- No releases in 110 days despite active commits
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
65
Adoption
70
Community
80
Provenance
0
How the maintenance status was determined
Last commit
72 days ago
Monthly downloads
4,401,629
Active
Activity within 30 days
•
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
4,401,629
Stars
830
Stars per 1k downloads
0.19
Industry Standard
> 10,000,000 monthly downloads
•
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
143,017
Month daily avg
146,721
Momentum
-2.5%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.10
Cutting Edge
Minimum supported version is 3.12 or newer
•
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
MIT
•
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
182 days ago
Total releases
58
Releases/year
3.0
Rapid
Last release within 365 days and > 12 releases/year
•
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
78
Monthly downloads
4,401,629
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
•
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
64
Issue Burden
183.1
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
28.8%
contrib / forks
Stale Release
110d
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
131.9K
Windows
3.2K
macOS
2.0K
Python Versions
3.13
43.7%
57.5K
3.12
27.9%
36.6K
3.11
16.0%
21.0K
3.10
9.6%
12.6K
3.9
2.9%
3.8K
Top Countries
1.
US
91.1K
US
2.
GB
18.8K
GB
3.
NL
5.1K
NL
4.
IE
4.7K
IE
5.
SG
4.0K
SG
6.
DE
3.4K
DE
7.
CN
2.2K
CN
8.
BE
1.1K
BE
9.
JP
948
JP
10.
AU
898
AU
Used By
1476
- arm-pyart
- xradar
- ai-wq-package
- pypsa
- earthkit-data
- paddle
- ert
- uxarray
- climetlab
- hydrolib-core
- scitools-iris
- intake-esm
- pygeoutils
- glider-playground
- mne-connectivity
- georinex
- eodag-cube
- era5cli
- intake-xarray
- intake-esgf
- py-wake
- geoprepare
- pyspedas
- pyharp
- landlab
- cars
- microsoft-aurora
- sofar
- soilgrids
- l2ss-py
- cloudnetpy
- quantify
- earth2studio
- pyistp
- musica
- boututils
- libera-utils
- act-atmos
- ilamb3
- compliance-checker
- eopf
- cf-python
- ai2-kit
- obsarray
- hypercoast
- cfdm
- nomad-parser-plugins-electronic
- skyborn
- anuga
- ussa1976
Package Information
License
MIT
First Release
November 22, 2006
Last Release
6 months ago
Last Commit
2 months ago
Latest Version
1.7.4
Total Releases
58
Contributors
78
Open PRs
1
Archived
No
Python Versions
3
3.10
3.11
3.12
3.13
3.14
Wheels
cp27
cp310
cp311
cp312
cp313
cp314
cp33
cp34
cp35
cp36
cp37
cp38
cp39
pp37
Keywords
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh