Annual report as of January 8, 2026
Note that (1) daily counts for e-Hysplit runs start from August 21, 2021. Run counts before this date
are unavailable; and (2) daily counts for HYSPLIT downloads start from July 26, 2022. Download counts before
this date are summed and entered as a single entry for January 1, 2021: this arbitrary
date is employed to keep the total number of downloads in our database.
| Date / Category | Meteorological tools | Public Online HYSPLIT | Registered Online HYSPLIT | NWS HYSPLIT | Locust | READY API | Email HYSPLIT | HYSPLIT Download |
|---|---|---|---|---|---|---|---|---|
| This year to date | 40,568 | 28,093 | 78 | 70 | 1 | 23 | 1,207 | 177 |
| CY2025 | 1,762,478 | 1,490,056 | 6,942 | 4,592 | 776 | 19,004 | 65,733 | 14,261 |
| CY2024 | 2,127,274 | 1,974,338 | 7,542 | 4,592 | 1,085 | 2,494 | 60,189 | 11,500 |
| CY2023 | 2,303,068 | 1,603,404 | 6,634 | 4,832 | 9,054 | 1,460 | 52,166 | 14,278 |
| CY2022 | 2,513,297 | 1,429,767 | 8,981 | 3,810 | 7,772 | 106 | 47,903 | 4,639 |
| CY2021 | 2,601,301 | 1,429,227 | 6,670 | 3,394 | 2,589 | 91 | 19,268 | 53,991 |
| CY2020 | 2,795,816 | 2,055,507 | 6,468 | 2,979 | 5,681 | 3 | ||
| CY2019 | 2,773,089 | 1,531,259 | 7,849 | 3,459 | ||||
| CY2018 | 3,342,844 | 1,078,893 | 6,180 | 3,135 | ||||
| CY2017 | 3,700,970 | 1,212,127 | 5,455 | 3,107 |