Weather in Groton, SD
Groton, Sunday, 15 November, 08:52
Clear. Feels like 34°. High 51°, low 32°.
Monthly outlook for Groton, SD: average high 47.7°, average low 37.4°. That is 6.5° above the climate normal for November. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 18 November (59.6°), the coolest 15 November (32°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 49° | 38.2° | +6° |
| 25 November – 4 December | 45.5° | 31.8° | +7.6° |
| 5 December – 14 December | at normal | 27.8° | — |
November records over 66 years
0
Groton, Monday, 16 November
Mostly clear. High 55°, low 38°.
0
Groton, Tuesday, 17 November
Overcast. High 55°, low 43°.
0
Groton, Wednesday, 18 November
Partly cloudy. High 60°, low 45°.
0Groton, Thursday, 19 November
Overcast. High 44°, low 36°.
0.24
Groton, Friday, 20 November
Light rain. High 42°, low 34°.
0.28Groton, Saturday, 21 November
Rain. High 44°, low 38°.
0Groton, Sunday, 22 November
Partly cloudy. High 41°, low 35°.
0Groton, Monday, 23 November
Overcast. High 46°, low 35°.
0Groton, Tuesday, 24 November
Overcast. High 52°, low 39°.
0Groton, Wednesday, 25 November
Overcast. High 54°, low 44°.
0Groton, Thursday, 26 November
Overcast. High 46°, low 39°.
0Groton, Friday, 27 November
Mostly clear. High 45°, low 37°.
0Groton, Saturday, 28 November
Overcast. High 41°, low 34°.
0
Groton, Sunday, 29 November
Light snow. High 43°, low 35°.
0Groton, Monday, 30 November
Overcast. High 43°, low 32°.
0.04Groton, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03Groton, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.02Groton, Thursday, 3 December
Climate normal for this date — 60-year average.
0.03Groton, Friday, 4 December
Climate normal for this date — 60-year average.
0.02Groton, Saturday, 5 December
Climate normal for this date — 60-year average.
0.02Groton, Sunday, 6 December
Climate normal for this date — 60-year average.
0.02Groton, Monday, 7 December
Climate normal for this date — 60-year average.
0.02Groton, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.02Groton, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.01Groton, Thursday, 10 December
Climate normal for this date — 60-year average.
0.02Groton, Friday, 11 December
Climate normal for this date — 60-year average.
0.01Groton, Saturday, 12 December
Climate normal for this date — 60-year average.
0.03Groton, Sunday, 13 December
Climate normal for this date — 60-year average.
0.04Groton, Monday, 14 December
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 Groton, 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 Groton, 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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