Weather in Perkiomen, PA
Perkiomen, Wednesday, 28 October, 08:22
Partly cloudy. Feels like 42°. High 65°, low 42°.
Monthly outlook for Perkiomen, PA: average high 60.1°, average low 44°. That is 1.6° above the climate normal for October. Precipitation is expected on 3 days (about 3.6 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 29 October (70.8°), the coolest 8 November (35.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 64.1° | 58.5° | +3.1° |
| 7 November – 16 November | 53.3° | 53.6° | -0.2° |
| 17 November – 26 November | at normal | 50.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Royersford (5 mi).
0
Perkiomen, Thursday, 29 October
Clear. High 71°, low 42°.
0Perkiomen, Friday, 30 October
Clear. High 68°, low 48°.
0
Perkiomen, Saturday, 31 October
Overcast. High 60°, low 44°.
0
Perkiomen, Sunday, 1 November
Mostly clear. High 66°, low 47°.
0Perkiomen, Monday, 2 November
Clear. High 67°, low 46°.
0Perkiomen, Tuesday, 3 November
Overcast. High 61°, low 52°.
0Perkiomen, Wednesday, 4 November
Overcast. High 57°, low 43°.
1.06
Perkiomen, Thursday, 5 November
Heavy rain. High 63°, low 54°.
0.85Perkiomen, Friday, 6 November
Heavy rain. High 63°, low 51°.
0.04Perkiomen, Saturday, 7 November
Light rain. High 48°, low 39°.
0Perkiomen, Sunday, 8 November
Clear. High 52°, low 35°.
0Perkiomen, Monday, 9 November
Clear. High 55°, low 36°.
0Perkiomen, Tuesday, 10 November
Clear. High 56°, low 38°.
0Perkiomen, Wednesday, 11 November
Partly cloudy. High 57°, low 39°.
1.64Perkiomen, Thursday, 12 November
Heavy rain. High 52°, low 47°.
0.12
Perkiomen, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Perkiomen, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Perkiomen, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Perkiomen, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Perkiomen, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Perkiomen, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Perkiomen, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Perkiomen, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Perkiomen, Saturday, 21 November
Climate normal for this date — 60-year average.
0.12Perkiomen, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Perkiomen, Monday, 23 November
Climate normal for this date — 60-year average.
0.11Perkiomen, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Perkiomen, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.17Perkiomen, Thursday, 26 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 Perkiomen, 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 Perkiomen, 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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