Weather in Sheffield, PA
Sheffield, Friday, 9 October, 22:28
Overcast. Feels like 49°. High 66°, low 40°.
Monthly outlook for Sheffield, PA: average high 60.8°, average low 45°. That is 2° above the climate normal for October. Precipitation is expected on 7 days (about 3.7 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 13 October (77.4°), the coolest 19 October (29.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 63° | 58.4° | +2.6° |
| 19 October – 28 October | 57° | 54.4° | +1.4° |
| 29 October – 7 November | at normal | 51.2° | — |
October records over 66 years
0Sheffield, Saturday, 10 October
Overcast. High 70°, low 40°.
1.24
Sheffield, Sunday, 11 October
Heavy rain. High 63°, low 46°.
0Sheffield, Monday, 12 October
Overcast. High 70°, low 58°.
0.17Sheffield, Tuesday, 13 October
Light rain. High 77°, low 60°.
0.05Sheffield, Wednesday, 14 October
Light rain. High 64°, low 55°.
0.02Sheffield, Thursday, 15 October
Light rain. High 56°, low 49°.
0.24Sheffield, Friday, 16 October
Light rain. High 66°, low 48°.
0.04Sheffield, Saturday, 17 October
Light rain. High 56°, low 40°.
0.04
Sheffield, Sunday, 18 October
Light snow. High 42°, low 30°.
0
Sheffield, Monday, 19 October
Clear. High 53°, low 29°.
0Sheffield, Tuesday, 20 October
Overcast. High 55°, low 35°.
0
Sheffield, Wednesday, 21 October
Mostly clear. High 61°, low 42°.
0.03Sheffield, Thursday, 22 October
Light rain. High 56°, low 49°.
1.92Sheffield, Friday, 23 October
Heavy rain. High 59°, low 51°.
0Sheffield, Saturday, 24 October
Overcast. High 58°, low 49°.
0.15
Sheffield, Sunday, 25 October
Climate normal for this date — 60-year average.
0.11Sheffield, Monday, 26 October
Climate normal for this date — 60-year average.
0.14Sheffield, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.12Sheffield, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.15Sheffield, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09
Sheffield, Friday, 30 October
Climate normal for this date — 60-year average.
0.13Sheffield, Saturday, 31 October
Climate normal for this date — 60-year average.
0.14Sheffield, Sunday, 1 November
Climate normal for this date — 60-year average.
0.16Sheffield, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Sheffield, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Sheffield, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Sheffield, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Sheffield, Friday, 6 November
Climate normal for this date — 60-year average.
0.12Sheffield, Saturday, 7 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 Sheffield, 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 Sheffield, 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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