Weather in Deerfield, PA
Deerfield, Tuesday, 13 October, 10:40
Overcast. Feels like 66°. High 74°, low 56°.
Monthly outlook for Deerfield, PA: average high 59.5°, average low 42.4°. That is 1.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 13 October (74°), the coolest 28 October (29.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 60.4° | 57.7° | +1.5° |
| 23 October – 1 November | 57.9° | 54.3° | +2° |
| 2 November – 11 November | at normal | 50.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Nelson (9 mi).
0.24
Deerfield, Wednesday, 14 October
Heavy rain. High 63°, low 52°.
0Deerfield, Thursday, 15 October
Overcast. High 59°, low 49°.
0.21Deerfield, Friday, 16 October
Rain. High 66°, low 42°.
0.01
Deerfield, Saturday, 17 October
Light snow. High 41°, low 35°.
0
Deerfield, Sunday, 18 October
Clear. High 57°, low 34°.
0Deerfield, Monday, 19 October
Overcast. High 62°, low 41°.
0Deerfield, Tuesday, 20 October
Overcast. High 57°, low 49°.
0Deerfield, Wednesday, 21 October
Clear. High 62°, low 41°.
0Deerfield, Thursday, 22 October
Overcast. High 64°, low 43°.
0Deerfield, Friday, 23 October
Overcast. High 68°, low 47°.
0
Deerfield, Saturday, 24 October
Mostly clear. High 72°, low 52°.
0Deerfield, Sunday, 25 October
Overcast. High 58°, low 39°.
0.01Deerfield, Monday, 26 October
Light rain. High 54°, low 36°.
0Deerfield, Tuesday, 27 October
Light rain. High 45°, low 32°.
0Deerfield, Wednesday, 28 October
Overcast. High 51°, low 30°.
0.15
Deerfield, Thursday, 29 October
Climate normal for this date — 60-year average.
0.1
Deerfield, Friday, 30 October
Climate normal for this date — 60-year average.
0.08Deerfield, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Deerfield, Sunday, 1 November
Climate normal for this date — 60-year average.
0.11Deerfield, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Deerfield, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Deerfield, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08Deerfield, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Deerfield, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Deerfield, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Deerfield, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Deerfield, Monday, 9 November
Climate normal for this date — 60-year average.
0.12Deerfield, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Deerfield, 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 Deerfield, 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 Deerfield, 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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