Weather in Old Tappan, NJ
Old Tappan, Saturday, 17 October, 06:15
Light rain. Feels like 50°. High 59°, low 39°.
Monthly outlook for Old Tappan, NJ: average high 59.2°, average low 43.8°. That is 0.3° below the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 26 October (67.9°), the coolest 18 October (35°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 61.5° | 60.8° | +0.4° |
| 27 October – 5 November | 55.4° | 57.8° | -1.3° |
| 6 November – 15 November | at normal | 53.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dumont (5 mi).
0
Old Tappan, Sunday, 18 October
Clear. High 55°, low 35°.
0Old Tappan, Monday, 19 October
Clear. High 64°, low 42°.
0Old Tappan, Tuesday, 20 October
Clear. High 64°, low 50°.
0Old Tappan, Wednesday, 21 October
Clear. High 60°, low 45°.
0Old Tappan, Thursday, 22 October
Clear. High 61°, low 43°.
0Old Tappan, Friday, 23 October
Clear. High 60°, low 47°.
0Old Tappan, Saturday, 24 October
Clear. High 61°, low 46°.
0Old Tappan, Sunday, 25 October
Clear. High 64°, low 45°.
0
Old Tappan, Monday, 26 October
Overcast. High 68°, low 50°.
0Old Tappan, Tuesday, 27 October
Overcast. High 59°, low 43°.
0
Old Tappan, Wednesday, 28 October
Partly cloudy. High 52°, low 38°.
0.08Old Tappan, Thursday, 29 October
Light rain. High 54°, low 48°.
0Old Tappan, Friday, 30 October
Overcast. High 53°, low 44°.
0
Old Tappan, Saturday, 31 October
Mostly clear. High 55°, low 40°.
0Old Tappan, Sunday, 1 November
Overcast. High 60°, low 47°.
0.09
Old Tappan, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Old Tappan, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Old Tappan, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Old Tappan, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Old Tappan, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Old Tappan, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Old Tappan, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Old Tappan, Monday, 9 November
Climate normal for this date — 60-year average.
0.15Old Tappan, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.14Old Tappan, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.14Old Tappan, Thursday, 12 November
Climate normal for this date — 60-year average.
0.18Old Tappan, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Old Tappan, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Old Tappan, Sunday, 15 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 Old Tappan, NJ 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 Old Tappan, NJ 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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