Weather in Groton, NY
Groton, Wednesday, 21 October, 19:27
Clear. Feels like 44°. High 60°, low 33°.
Monthly outlook for Groton, NY: average high 55.6°, average low 36.8°. That is 1.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 2 November (63.8°), the coolest 5 November (30°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 56.2° | 53.4° | +1.6° |
| 31 October – 9 November | 54.6° | 50.2° | +2.4° |
| 10 November – 19 November | at normal | 44.5° | — |
October records over 66 years
0
Groton, Thursday, 22 October
Clear. High 62°, low 34°.
0Groton, Friday, 23 October
Clear. High 54°, low 32°.
0
Groton, Saturday, 24 October
Partly cloudy. High 57°, low 35°.
0Groton, Sunday, 25 October
Clear. High 58°, low 37°.
0Groton, Monday, 26 October
Clear. High 61°, low 40°.
0
Groton, Tuesday, 27 October
Overcast. High 53°, low 40°.
0Groton, Wednesday, 28 October
Overcast. High 57°, low 41°.
0.27
Groton, Thursday, 29 October
Snow. High 54°, low 36°.
0.03Groton, Friday, 30 October
Light snow. High 45°, low 31°.
0Groton, Saturday, 31 October
Clear. High 53°, low 33°.
0Groton, Sunday, 1 November
Overcast. High 63°, low 41°.
0.12
Groton, Monday, 2 November
Rain. High 64°, low 49°.
1.24Groton, Tuesday, 3 November
Rain. High 58°, low 44°.
0.07Groton, Wednesday, 4 November
Light rain. High 43°, low 33°.
0Groton, Thursday, 5 November
Clear. High 47°, low 30°.
0.12
Groton, 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.
0.16Groton, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.16Groton, Thursday, 12 November
Climate normal for this date — 60-year average.
0.09Groton, Friday, 13 November
Climate normal for this date — 60-year average.
0.13Groton, Saturday, 14 November
Climate normal for this date — 60-year average.
0.16Groton, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Groton, Monday, 16 November
Climate normal for this date — 60-year average.
0.14Groton, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Groton, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.1Groton, Thursday, 19 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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