Data and sources
This section brings together reliable climate and agriculture data, always with a clear source so you can check it.
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This section brings together reliable climate and agriculture data, always with a clear source so you can check it.
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Every number here is fetched and checked automatically from these public sources; nothing is typed in by hand. Each number is checked before it's published (known country, sensible year and value, no duplicates). If a source fails, the last good data stays online with its date.
Last updated Oct 22, 2026Up to date
Free to use, with credit to NASA Langley Research Center POWER Project
Last updated Oct 22, 2026Up to date
Total rain and snow in a year near the capital city, from satellite and weather models.
Measured near the capital city, Agana.
1,599 mm
Latest data: 2025 · Millimetres
Source: NASA POWER (Prediction Of Worldwide Energy Resources) · Licence: Free to use, with credit to NASA Langley Research Center POWER Project · Fetched Oct 22, 2026 · Check at the source
| Year | Value |
|---|---|
| 2025 | 1,599 mm |
| 2024 | 1,395 mm |
| 2023 | 1,770 mm |
| 2022 | 1,479 mm |
| 2021 | 1,537 mm |
| 2020 | 1,018 mm |
| 2019 | 1,438 mm |
| 2018 | 1,645 mm |
| 2017 | 1,344 mm |
| 2016 | 1,347 mm |
| 2015 | 1,525 mm |
| 2014 | 2,075 mm |
| 2013 | 1,634 mm |
| 2012 | 1,902 mm |
| 2011 | 2,073 mm |
| 2010 | 1,307 mm |
| 2009 | 1,707 mm |
| 2008 | 1,196 mm |
| 2007 | 1,634 mm |
| 2006 | 1,735 mm |
| 2005 | 1,674 mm |
| 2004 | 2,203 mm |
| 2003 | 1,592 mm |
| 2002 | 1,658 mm |
| 2001 | 1,438 mm |