Weather in Hanna, SD
Hanna, Tuesday, 13 October, 15:57
Overcast. Feels like 40°. High 38°, low 30°.
Monthly outlook for Hanna, SD: average high 48.8°, average low 31.7°. That is 3.4° below the climate normal for October. Precipitation is expected on 7 days (about 1.0 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (70.3°), the coolest 25 October (18.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 54.5° | 55.8° | -0.7° |
| 23 October – 1 November | 39.2° | 51.4° | -6.8° |
| 2 November – 11 November | at normal | 46.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mountain Plains (14 mi).
0.17
Hanna, Wednesday, 14 October
Rain. High 41°, low 29°.
0.1Hanna, Thursday, 15 October
Rain. High 43°, low 27°.
0
Hanna, Friday, 16 October
Clear. High 56°, low 23°.
0Hanna, Saturday, 17 October
Clear. High 70°, low 45°.
0Hanna, Sunday, 18 October
Clear. High 60°, low 44°.
0Hanna, Monday, 19 October
Clear. High 61°, low 41°.
0
Hanna, Tuesday, 20 October
Mostly clear. High 65°, low 50°.
0Hanna, Wednesday, 21 October
Overcast. High 70°, low 49°.
0.24
Hanna, Thursday, 22 October
Snow. High 41°, low 31°.
0
Hanna, Friday, 23 October
Partly cloudy. High 48°, low 29°.
0Hanna, Saturday, 24 October
Clear. High 45°, low 31°.
0.17Hanna, Sunday, 25 October
Snow. High 33°, low 18°.
0.06Hanna, Monday, 26 October
Light snow. High 38°, low 19°.
0.07Hanna, Tuesday, 27 October
Light snow. High 36°, low 19°.
0Hanna, Wednesday, 28 October
Partly cloudy. High 37°, low 20°.
0.11
Hanna, Thursday, 29 October
Climate normal for this date — 60-year average.
0.04Hanna, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Hanna, Saturday, 31 October
Climate normal for this date — 60-year average.
0.08Hanna, Sunday, 1 November
Climate normal for this date — 60-year average.
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.
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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