Unlock deeper multi-jurisdiction research
Full sub-pages, saves, and alerts are available on paid plans.
Weather & Climate
Hamlin County, South Dakota, United States
Overview
Climate data and monthly weather averages for Hamlin County.
Key Metrics
Annual Avg
7.4°C
Summer Avg
22°C
Winter Avg
-7.8°C
Record High
42.6°C
Record Low
-39.4°C
Annual Precipitation
633.8 mm
Avg Humidity
71%
Summer Humidity
64%
Winter Humidity
85%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 10.1° | -9.2° | -39.4° | 12.4 | 87% | 61 | 57.7 |
| Feb | 17.2° | -7.6° | -32.5° | 17.9 | 81% | 85 | 74.2 |
| Mar | 27.4° | 0.3° | -31.5° | 31.6 | 72% | 118 | 61.2 |
| Apr | 30.7° | 7.3° | -13.4° | 59.4 | 65% | 148 | 61 |
| May | 35.2° | 14.1° | -5.1° | 84.9 | 65% | 177 | 60.8 |
| Jun | 39° | 20.3° | 4.5° | 103.5 | 67% | 192 | 51.6 |
| Jul | 42.6° | 23.8° | 8.3° | 80.3 | 61% | 209 | 44 |
| Aug | 39.7° | 21.8° | 6.8° | 79.7 | 63% | 174 | 52.1 |
| Sep | 36.1° | 16.9° | -0.3° | 71.4 | 64% | 131 | 56.3 |
| Oct | 30° | 7.8° | -14.1° | 53.3 | 69% | 91 | 61.3 |
| Nov | 22.6° | 0.4° | -19.2° | 18.3 | 75% | 60 | 62.4 |
| Dec | 11.6° | -6.7° | -29.7° | 21.1 | 86% | 45 | 66.2 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
Subscribe to unlock the full sub-page depth for additional jurisdictions.
You can keep discovering Oyster publicly, but full multi-jurisdiction depth, tracking, alerts, and exports are part of paid access.