Facility · Iowa ·
Managed by the National Park Service
Herbert Hoover National Historic Site (National Historic Site) · Restricted Access

41.67086, -91.34570 · 41°40'15.1"N 91°20'44.5"W
Typically 84°F in Jul, down to 29°F in Jan.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 29 | 34 | 48 | 62 | 72 | 81 | 84 | 82 | 76 | 63 | 48 | 34 |
| Low °F | 12 | 16 | 27 | 37 | 49 | 59 | 63 | 60 | 52 | 40 | 28 | 18 |
| Precip in | 1.1 | 1.4 | 2.3 | 3.9 | 5.0 | 5.5 | 4.6 | 4.3 | 3.5 | 3.0 | 2.3 | 1.6 |
1991–2020 averages from the nearest NOAA station, 9.3 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.

Recreation.gov last updated this record on 2026-02-25.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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