Weather in South Harrison, NJ
South Harrison, Sunday, 9 August, 04:43
Mostly clear. Feels like 74°. High 87°, low 73°.
Monthly outlook for South Harrison, NJ: average high 87.6°, average low 68.2°. That is 2.6° above the climate normal for August. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 23 August (96.8°), the coolest 16 August (59.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 83.7° | 83.7° | -0° |
| 19 August – 28 August | 94.1° | 82.4° | +6.5° |
| 29 August – 7 September | at normal | 81.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Ridley (14 mi).
0
South Harrison, Monday, 10 August
Partly cloudy. High 89°, low 72°.
0.06
South Harrison, Tuesday, 11 August
Light rain. High 89°, low 72°.
0.06South Harrison, Wednesday, 12 August
Light rain. High 86°, low 71°.
0.05South Harrison, Thursday, 13 August
Light rain. High 86°, low 71°.
0
South Harrison, Friday, 14 August
Overcast. High 77°, low 64°.
0
South Harrison, Saturday, 15 August
Clear. High 79°, low 60°.
0South Harrison, Sunday, 16 August
Overcast. High 81°, low 59°.
0South Harrison, Monday, 17 August
Overcast. High 76°, low 60°.
0.03South Harrison, Tuesday, 18 August
Light rain. High 87°, low 64°.
0South Harrison, Wednesday, 19 August
Clear. High 89°, low 65°.
0
South Harrison, Thursday, 20 August
Mostly clear. High 92°, low 67°.
0.17South Harrison, Friday, 21 August
Rain. High 96°, low 69°.
0.1South Harrison, Saturday, 22 August
Light rain. High 95°, low 73°.
0South Harrison, Sunday, 23 August
Clear. High 97°, low 74°.
0South Harrison, Monday, 24 August
Overcast. High 95°, low 76°.
0.06South Harrison, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06South Harrison, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18South Harrison, Thursday, 27 August
Climate normal for this date — 60-year average.
0.25
South Harrison, Friday, 28 August
Climate normal for this date — 60-year average.
0.12South Harrison, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07South Harrison, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07South Harrison, Monday, 31 August
Climate normal for this date — 60-year average.
0.13South Harrison, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11South Harrison, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.15South Harrison, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09South Harrison, Friday, 4 September
Climate normal for this date — 60-year average.
0.08South Harrison, Saturday, 5 September
Climate normal for this date — 60-year average.
0.21South Harrison, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11South Harrison, 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 South Harrison, 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 South Harrison, 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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