Weather in Groton, NY
Groton, Monday, 12 October, 07:18
Mostly clear. Feels like 52°. High 64°, low 52°.
Monthly outlook for Groton, NY: average high 56.5°, average low 40.5°. That is 0.5° above the climate normal for October. Precipitation is expected on 7 days (about 3.5 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 13 October (73.9°), the coolest 18 October (26.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 58.9° | 56.7° | +1.2° |
| 22 October – 31 October | 52.5° | 53° | -0.3° |
| 1 November – 10 November | at normal | 49.8° | — |
October records over 66 years
0.93
Groton, Tuesday, 13 October
Heavy rain. High 74°, low 50°.
0.07Groton, Wednesday, 14 October
Light rain. High 65°, low 55°.
0
Groton, Thursday, 15 October
Overcast. High 55°, low 44°.
0.78Groton, Friday, 16 October
Rain. High 55°, low 45°.
0.15Groton, Saturday, 17 October
Light rain. High 46°, low 34°.
0Groton, Sunday, 18 October
Mostly clear. High 51°, low 27°.
0
Groton, Monday, 19 October
Clear. High 61°, low 35°.
0Groton, Tuesday, 20 October
Overcast. High 63°, low 45°.
0Groton, Wednesday, 21 October
Clear. High 56°, low 40°.
0Groton, Thursday, 22 October
Clear. High 59°, low 38°.
0.47Groton, Friday, 23 October
Rain. High 64°, low 43°.
0.05Groton, Saturday, 24 October
Light rain. High 45°, low 32°.
0Groton, Sunday, 25 October
Overcast. High 50°, low 30°.
1.04Groton, Monday, 26 October
Rain. High 46°, low 40°.
0
Groton, Tuesday, 27 October
Partly cloudy. High 51°, low 38°.
0.14
Groton, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.12Groton, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Groton, Friday, 30 October
Climate normal for this date — 60-year average.
0.1Groton, Saturday, 31 October
Climate normal for this date — 60-year average.
0.12Groton, Sunday, 1 November
Climate normal for this date — 60-year average.
0.18Groton, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Groton, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.12Groton, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Groton, Thursday, 5 November
Climate normal for this date — 60-year average.
0.12Groton, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Groton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Groton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Groton, Monday, 9 November
Climate normal for this date — 60-year average.
0.15Groton, Tuesday, 10 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 Groton, NY 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, NY 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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