Weather in Slippery Rock, PA
Slippery Rock, Sunday, 15 November, 17:09
Overcast. Feels like 35°. High 43°, low 38°.
Monthly outlook for Slippery Rock, PA: average high 52°, average low 37.6°. That is 3.9° above the climate normal for November. Precipitation is expected on 3 days (about 2.1 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 26 November (58.8°), the coolest 24 November (29.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 51.9° | 45.7° | +3.4° |
| 25 November – 4 December | 52.3° | 42.6° | +5.4° |
| 5 December – 14 December | at normal | 38.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Concord (13 mi).
0Slippery Rock, Monday, 16 November
Overcast. High 48°, low 37°.
0
Slippery Rock, Tuesday, 17 November
Clear. High 51°, low 33°.
0
Slippery Rock, Wednesday, 18 November
Mostly clear. High 55°, low 32°.
0Slippery Rock, Thursday, 19 November
Overcast. High 57°, low 35°.
0
Slippery Rock, Friday, 20 November
Partly cloudy. High 57°, low 40°.
0Slippery Rock, Saturday, 21 November
Overcast. High 57°, low 38°.
0
Slippery Rock, Sunday, 22 November
Light rain. High 59°, low 42°.
0Slippery Rock, Monday, 23 November
Overcast. High 45°, low 33°.
0Slippery Rock, Tuesday, 24 November
Clear. High 47°, low 29°.
0Slippery Rock, Wednesday, 25 November
Overcast. High 49°, low 33°.
0.02Slippery Rock, Thursday, 26 November
Light rain. High 59°, low 43°.
0.99Slippery Rock, Friday, 27 November
Heavy rain. High 59°, low 47°.
0.02Slippery Rock, Saturday, 28 November
Light rain. High 48°, low 42°.
0Slippery Rock, Sunday, 29 November
Mostly clear. High 50°, low 35°.
0.98Slippery Rock, Monday, 30 November
Rain. High 49°, low 43°.
0.15
Slippery Rock, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11Slippery Rock, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.13Slippery Rock, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Slippery Rock, Friday, 4 December
Climate normal for this date — 60-year average.
0.13Slippery Rock, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15Slippery Rock, Sunday, 6 December
Climate normal for this date — 60-year average.
0.1Slippery Rock, Monday, 7 December
Climate normal for this date — 60-year average.
0.08Slippery Rock, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.16Slippery Rock, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.17Slippery Rock, Thursday, 10 December
Climate normal for this date — 60-year average.
0.12Slippery Rock, Friday, 11 December
Climate normal for this date — 60-year average.
0.1Slippery Rock, Saturday, 12 December
Climate normal for this date — 60-year average.
0.11Slippery Rock, Sunday, 13 December
Climate normal for this date — 60-year average.
0.15Slippery Rock, Monday, 14 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 Slippery Rock, 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 Slippery Rock, 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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