Weather in Ajax, SD
Ajax, Monday, 19 October, 09:03
Clear. Feels like 47°. High 61°, low 41°.
Monthly outlook for Ajax, SD: average high 59°, average low 39.2°. That is 1.7° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 22 October (78.5°), the coolest 28 October (26.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 62.3° | 58.2° | +2.3° |
| 29 October – 7 November | 53.3° | 52.1° | +0.7° |
| 8 November – 17 November | at normal | 47.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Hermosa (4 mi).
0Ajax, Tuesday, 20 October
Clear. High 71°, low 39°.
0Ajax, Wednesday, 21 October
Clear. High 66°, low 46°.
0
Ajax, Thursday, 22 October
Partly cloudy. High 79°, low 52°.
0.01
Ajax, Friday, 23 October
Light rain. High 78°, low 57°.
0Ajax, Saturday, 24 October
Partly cloudy. High 60°, low 45°.
0
Ajax, Sunday, 25 October
Mostly clear. High 59°, low 39°.
0Ajax, Monday, 26 October
Clear. High 57°, low 40°.
0.02
Ajax, Tuesday, 27 October
Light snow. High 43°, low 29°.
0Ajax, Wednesday, 28 October
Clear. High 50°, low 26°.
0Ajax, Thursday, 29 October
Partly cloudy. High 56°, low 31°.
0
Ajax, Friday, 30 October
Overcast. High 48°, low 33°.
0Ajax, Saturday, 31 October
Overcast. High 59°, low 36°.
0Ajax, Sunday, 1 November
Clear. High 51°, low 32°.
0.06Ajax, Monday, 2 November
Light rain. High 50°, low 40°.
0Ajax, Tuesday, 3 November
Overcast. High 56°, low 41°.
0.01Ajax, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Ajax, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Ajax, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Ajax, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Ajax, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Ajax, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Ajax, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Ajax, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03Ajax, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Ajax, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Ajax, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Ajax, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Ajax, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Ajax, Tuesday, 17 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 Ajax, 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 Ajax, 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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