Weather in Grantley, PA
Grantley, Tuesday, 13 October, 12:10
Clear. Feels like 75°. High 76°, low 54°.
Monthly outlook for Grantley, PA: average high 64.7°, average low 47.2°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 16 October (78.9°), the coolest 28 October (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 66.2° | 63.5° | +1.5° |
| 23 October – 1 November | 62.2° | 59.9° | +1.3° |
| 2 November – 11 November | at normal | 56.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West York (2 mi).
0.02
Grantley, Wednesday, 14 October
Light rain. High 77°, low 63°.
0.24Grantley, Thursday, 15 October
Rain. High 66°, low 54°.
0.13Grantley, Friday, 16 October
Light rain. High 79°, low 57°.
0Grantley, Saturday, 17 October
Clear. High 52°, low 41°.
0Grantley, Sunday, 18 October
Clear. High 56°, low 37°.
0
Grantley, Monday, 19 October
Overcast. High 64°, low 41°.
0Grantley, Tuesday, 20 October
Overcast. High 61°, low 51°.
0.01Grantley, Wednesday, 21 October
Light rain. High 67°, low 51°.
0Grantley, Thursday, 22 October
Clear. High 65°, low 46°.
0Grantley, Friday, 23 October
Clear. High 68°, low 49°.
0Grantley, Saturday, 24 October
Clear. High 76°, low 52°.
0Grantley, Sunday, 25 October
Overcast. High 58°, low 46°.
0Grantley, Monday, 26 October
Clear. High 61°, low 41°.
0Grantley, Tuesday, 27 October
Clear. High 55°, low 38°.
0
Grantley, Wednesday, 28 October
Partly cloudy. High 56°, low 34°.
0.21Grantley, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Grantley, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Grantley, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06Grantley, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Grantley, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Grantley, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Grantley, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1
Grantley, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Grantley, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Grantley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.17Grantley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Grantley, Monday, 9 November
Climate normal for this date — 60-year average.
0.17Grantley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Grantley, Wednesday, 11 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 Grantley, 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 Grantley, 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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