Weather in Groton City, NY
Groton City, Sunday, 9 August, 12:57
Clear. Feels like 75°. High 80°, low 66°.
Monthly outlook for Groton City, NY: average high 70.3°, average low 53.9°. That is 3° below the climate normal for August. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 7 days and 2.0 inches. The warmest day looks like 10 August (81°), the coolest 15 August (44.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 71° | 76.4° | -3° |
| 19 August – 28 August | 69.2° | 75° | -3.2° |
| 29 August – 7 September | at normal | 73.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Groton (4 mi).
0.11
Groton City, Monday, 10 August
Light rain. High 81°, low 63°.
0Groton City, Tuesday, 11 August
Light rain. High 76°, low 58°.
0.05Groton City, Wednesday, 12 August
Light rain. High 75°, low 58°.
0.01Groton City, Thursday, 13 August
Light rain. High 67°, low 55°.
0
Groton City, Friday, 14 August
Partly cloudy. High 65°, low 50°.
0
Groton City, Saturday, 15 August
Mostly clear. High 65°, low 45°.
0
Groton City, Sunday, 16 August
Overcast. High 61°, low 49°.
0Groton City, Monday, 17 August
Overcast. High 68°, low 53°.
0Groton City, Tuesday, 18 August
Overcast. High 73°, low 51°.
0.48Groton City, Wednesday, 19 August
Rain. High 73°, low 58°.
0.03Groton City, Thursday, 20 August
Light rain. High 64°, low 54°.
0Groton City, Friday, 21 August
Overcast. High 70°, low 51°.
0.07Groton City, Saturday, 22 August
Light rain. High 77°, low 53°.
0.57Groton City, Sunday, 23 August
Rain. High 65°, low 52°.
0Groton City, Monday, 24 August
Mostly clear. High 66°, low 47°.
0.09Groton City, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Groton City, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18
Groton City, Thursday, 27 August
Climate normal for this date — 60-year average.
0.21Groton City, Friday, 28 August
Climate normal for this date — 60-year average.
0.2Groton City, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11Groton City, Sunday, 30 August
Climate normal for this date — 60-year average.
0.13Groton City, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Groton City, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.14Groton City, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Groton City, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Groton City, Friday, 4 September
Climate normal for this date — 60-year average.
0.1Groton City, Saturday, 5 September
Climate normal for this date — 60-year average.
0.16Groton City, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11Groton City, Monday, 7 September
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 City, 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 City, 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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