Weather in Groton, NY
Groton, Thursday, 15 October, 08:34
Overcast. Feels like 41°. High 60°, low 45°.
Monthly outlook for Groton, NY: average high 54.5°, average low 38.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 16 October (71.2°), the coolest 30 October (30.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 58.6° | 55.3° | +1.8° |
| 25 October – 3 November | 47.6° | 52.4° | -2.7° |
| 4 November – 13 November | at normal | 47.5° | — |
October records over 66 years
0.75
Groton, Friday, 16 October
Rain. High 71°, low 50°.
0Groton, Saturday, 17 October
Overcast. High 48°, low 38°.
0
Groton, Sunday, 18 October
Clear. High 57°, low 36°.
0Groton, Monday, 19 October
Clear. High 61°, low 40°.
0Groton, Tuesday, 20 October
Overcast. High 59°, low 40°.
0Groton, Wednesday, 21 October
Clear. High 56°, low 38°.
0Groton, Thursday, 22 October
Clear. High 54°, low 34°.
0Groton, Friday, 23 October
Clear. High 59°, low 39°.
0Groton, Saturday, 24 October
Clear. High 60°, low 42°.
0Groton, Sunday, 25 October
Overcast. High 55°, low 41°.
0.09Groton, Monday, 26 October
Light rain. High 50°, low 38°.
0.11
Groton, Tuesday, 27 October
Snow. High 50°, low 36°.
0
Groton, Wednesday, 28 October
Mostly clear. High 44°, low 32°.
0.12Groton, Thursday, 29 October
Light rain. High 47°, low 33°.
0.14Groton, Friday, 30 October
Snow. High 40°, low 30°.
0.1
Groton, 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.
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.
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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