Weather in Harristown, PA
Harristown, Tuesday, 3 November, 06:05
Overcast. Feels like 45°. High 69°, low 45°.
Monthly outlook for Harristown, PA: average high 59.1°, average low 42.4°. That is 2.8° above the climate normal for November. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 4 November (72.8°), the coolest 15 November (31.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 3 November – 12 November | 62.6° | 55.7° | +3.9° |
| 13 November – 22 November | 53.1° | 50.9° | +1.2° |
| 23 November – 2 December | at normal | 48.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Lancaster (12 mi).
0
Harristown, Wednesday, 4 November
Clear. High 73°, low 46°.
0.26
Harristown, Thursday, 5 November
Rain. High 72°, low 60°.
0.14Harristown, Friday, 6 November
Rain. High 72°, low 59°.
0Harristown, Saturday, 7 November
Clear. High 65°, low 49°.
0Harristown, Sunday, 8 November
Clear. High 55°, low 43°.
0.02Harristown, Monday, 9 November
Light rain. High 49°, low 37°.
0
Harristown, Tuesday, 10 November
Mostly clear. High 54°, low 35°.
0.08Harristown, Wednesday, 11 November
Light rain. High 64°, low 44°.
0Harristown, Thursday, 12 November
Overcast. High 54°, low 42°.
0.02Harristown, Friday, 13 November
Light rain. High 47°, low 37°.
0Harristown, Saturday, 14 November
Clear. High 49°, low 33°.
0Harristown, Sunday, 15 November
Clear. High 51°, low 31°.
0Harristown, Monday, 16 November
Clear. High 56°, low 35°.
0Harristown, Tuesday, 17 November
Clear. High 57°, low 39°.
0Harristown, Wednesday, 18 November
Overcast. High 59°, low 43°.
0.09
Harristown, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Harristown, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Harristown, Saturday, 21 November
Climate normal for this date — 60-year average.
0.12Harristown, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Harristown, Monday, 23 November
Climate normal for this date — 60-year average.
0.13Harristown, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12
Harristown, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.15Harristown, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Harristown, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Harristown, Saturday, 28 November
Climate normal for this date — 60-year average.
0.14Harristown, Sunday, 29 November
Climate normal for this date — 60-year average.
0.11Harristown, Monday, 30 November
Climate normal for this date — 60-year average.
0.11Harristown, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.1Harristown, Wednesday, 2 December
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 Harristown, 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 Harristown, 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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