Weather in Hanna, SD
Hanna, Saturday, 17 October, 08:52
Clear. Feels like 51°. High 70°, low 37°.
Monthly outlook for Hanna, SD: average high 52.3°, average low 34.3°. That is 0.5° below the climate normal for October. Precipitation is expected on 4 days (about 3.5 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (69.7°), the coolest 31 October (16.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 59.1° | 55.3° | +2.1° |
| 27 October – 5 November | 41.1° | 49.1° | -4.4° |
| 6 November – 15 November | at normal | 45.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mountain Plains (14 mi).
0Hanna, Sunday, 18 October
Clear. High 58°, low 40°.
0Hanna, Monday, 19 October
Clear. High 64°, low 40°.
0Hanna, Tuesday, 20 October
Clear. High 66°, low 48°.
0Hanna, Wednesday, 21 October
Clear. High 62°, low 43°.
0
Hanna, Thursday, 22 October
Overcast. High 68°, low 50°.
0.01
Hanna, Friday, 23 October
Light rain. High 64°, low 47°.
0.41
Hanna, Saturday, 24 October
Snow. High 43°, low 26°.
0Hanna, Sunday, 25 October
Overcast. High 49°, low 23°.
0
Hanna, Monday, 26 October
Partly cloudy. High 47°, low 39°.
0Hanna, Tuesday, 27 October
Overcast. High 56°, low 34°.
0.11Hanna, Wednesday, 28 October
Snow. High 40°, low 30°.
0Hanna, Thursday, 29 October
Clear. High 51°, low 36°.
2.7Hanna, Friday, 30 October
Heavy snow. High 37°, low 21°.
0.3Hanna, Saturday, 31 October
Snow. High 29°, low 16°.
0
Hanna, Sunday, 1 November
Mostly clear. High 33°, low 19°.
0.05Hanna, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Hanna, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Hanna, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Hanna, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Hanna, Friday, 6 November
Climate normal for this date — 60-year average.
0.04Hanna, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Hanna, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Hanna, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Hanna, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Hanna, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Hanna, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Hanna, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Hanna, Saturday, 14 November
Climate normal for this date — 60-year average.
0.03Hanna, Sunday, 15 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Hanna, SD are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Hanna, SD since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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