Weather in Port Perry, PA
Port Perry, Friday, 23 October, 08:59
Clear. Feels like 45°. High 63°, low 40°.
Monthly outlook for Port Perry, PA: average high 61.1°, average low 44.3°. That is 2° above the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 29 October (67.9°), the coolest 25 October (35.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 65° | 58.5° | +3.6° |
| 2 November – 11 November | 54.5° | 54.7° | -0.1° |
| 12 November – 21 November | at normal | 49.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Turtle Creek (2 mi).
0Port Perry, Saturday, 24 October
Clear. High 64°, low 37°.
0Port Perry, Sunday, 25 October
Clear. High 63°, low 36°.
0Port Perry, Monday, 26 October
Clear. High 65°, low 43°.
0Port Perry, Tuesday, 27 October
Clear. High 62°, low 48°.
0
Port Perry, Wednesday, 28 October
Overcast. High 66°, low 48°.
0Port Perry, Thursday, 29 October
Clear. High 68°, low 48°.
0Port Perry, Friday, 30 October
Overcast. High 68°, low 50°.
0.18
Port Perry, Saturday, 31 October
Light rain. High 67°, low 56°.
1.35Port Perry, Sunday, 1 November
Heavy rain. High 65°, low 59°.
0.1Port Perry, Monday, 2 November
Light rain. High 57°, low 45°.
0.01Port Perry, Tuesday, 3 November
Light rain. High 51°, low 41°.
0Port Perry, Wednesday, 4 November
Clear. High 52°, low 36°.
0Port Perry, Thursday, 5 November
Clear. High 54°, low 37°.
0Port Perry, Friday, 6 November
Clear. High 59°, low 39°.
0Port Perry, Saturday, 7 November
Overcast. High 54°, low 46°.
0.11
Port Perry, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Port Perry, Monday, 9 November
Climate normal for this date — 60-year average.
0.17Port Perry, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.16Port Perry, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.14Port Perry, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Port Perry, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Port Perry, Saturday, 14 November
Climate normal for this date — 60-year average.
0.14Port Perry, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Port Perry, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Port Perry, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Port Perry, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.14Port Perry, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Port Perry, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Port Perry, Saturday, 21 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 Port Perry, PA 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 Port Perry, PA 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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