Weather in Harmony Hill, PA
Harmony Hill, Saturday, 10 October, 18:40
Overcast. Feels like 63°. High 70°, low 46°.
Monthly outlook for Harmony Hill, PA: average high 62.4°, average low 45.9°. That is 0.3° below the climate normal for October. Precipitation is expected on 4 days (about 2.8 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 14 October (77.7°), the coolest 20 October (31.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 65.7° | 63.9° | +1° |
| 20 October – 29 October | 57° | 60.4° | -1.9° |
| 30 October – 8 November | at normal | 57.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West Chester (4 mi).
1.3
Harmony Hill, Sunday, 11 October
Heavy rain. High 64°, low 51°.
0.98Harmony Hill, Monday, 12 October
Heavy rain. High 72°, low 53°.
0
Harmony Hill, Tuesday, 13 October
Partly cloudy. High 75°, low 56°.
0.04Harmony Hill, Wednesday, 14 October
Light rain. High 78°, low 65°.
0Harmony Hill, Thursday, 15 October
Overcast. High 65°, low 51°.
0.31Harmony Hill, Friday, 16 October
Rain. High 69°, low 52°.
0.19Harmony Hill, Saturday, 17 October
Light rain. High 64°, low 48°.
0.01Harmony Hill, Sunday, 18 October
Light rain. High 52°, low 39°.
0
Harmony Hill, Monday, 19 October
Clear. High 48°, low 36°.
0Harmony Hill, Tuesday, 20 October
Overcast. High 50°, low 32°.
0Harmony Hill, Wednesday, 21 October
Clear. High 56°, low 37°.
0Harmony Hill, Thursday, 22 October
Clear. High 58°, low 40°.
0Harmony Hill, Friday, 23 October
Clear. High 59°, low 42°.
0Harmony Hill, Saturday, 24 October
Partly cloudy. High 59°, low 43°.
0Harmony Hill, Sunday, 25 October
Overcast. High 60°, low 44°.
0.11
Harmony Hill, Monday, 26 October
Climate normal for this date — 60-year average.
0.2Harmony Hill, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Harmony Hill, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.25Harmony Hill, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Harmony Hill, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Harmony Hill, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Harmony Hill, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Harmony Hill, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Harmony Hill, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Harmony Hill, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Harmony Hill, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Harmony Hill, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Harmony Hill, Saturday, 7 November
Climate normal for this date — 60-year average.
0.12Harmony Hill, Sunday, 8 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 Harmony Hill, 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 Harmony Hill, 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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