Weather in Summit, PA
Summit, Thursday, 8 October, 00:22
Clear. Feels like 53°. High 66°, low 42°.
Monthly outlook for Summit, PA: average high 62.2°, average low 44.8°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 16 October (79.1°), the coolest 22 October (32.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 66.7° | 60.1° | +3.7° |
| 18 October – 27 October | 54.7° | 55.6° | -0.5° |
| 28 October – 6 November | at normal | 53° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Addison (13 mi).
0
Summit, Friday, 9 October
Clear. High 65°, low 35°.
0
Summit, Saturday, 10 October
Overcast. High 66°, low 47°.
1.14
Summit, Sunday, 11 October
Rain. High 59°, low 53°.
0.13Summit, Monday, 12 October
Light rain. High 62°, low 58°.
0.19Summit, Tuesday, 13 October
Rain. High 67°, low 45°.
0Summit, Wednesday, 14 October
Clear. High 53°, low 38°.
0
Summit, Thursday, 15 October
Partly cloudy. High 70°, low 40°.
0Summit, Friday, 16 October
Clear. High 79°, low 61°.
0Summit, Saturday, 17 October
Clear. High 79°, low 60°.
0Summit, Sunday, 18 October
Overcast. High 67°, low 52°.
0Summit, Monday, 19 October
Overcast. High 55°, low 40°.
0Summit, Tuesday, 20 October
Clear. High 58°, low 37°.
0Summit, Wednesday, 21 October
Overcast. High 50°, low 35°.
0Summit, Thursday, 22 October
Overcast. High 50°, low 32°.
0.09Summit, Friday, 23 October
Light rain. High 48°, low 41°.
0.13
Summit, Saturday, 24 October
Climate normal for this date — 60-year average.
0.16Summit, Sunday, 25 October
Climate normal for this date — 60-year average.
0.11Summit, Monday, 26 October
Climate normal for this date — 60-year average.
0.14Summit, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.11Summit, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.21Summit, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Summit, Friday, 30 October
Climate normal for this date — 60-year average.
0.09Summit, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1Summit, Sunday, 1 November
Climate normal for this date — 60-year average.
0.15Summit, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Summit, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.12Summit, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Summit, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Summit, Friday, 6 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 Summit, 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 Summit, 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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