Weather in Deerfield, PA
Deerfield, Monday, 19 October, 15:48
Clear. Feels like 67°. High 69°, low 33°.
Monthly outlook for Deerfield, PA: average high 54.6°, average low 37°. That is 0.1° below the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 19 October (69°), the coolest 29 October (27.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 57.8° | 55.7° | +1.2° |
| 29 October – 7 November | 49.3° | 52.3° | -1.7° |
| 8 November – 17 November | at normal | 47° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Nelson (9 mi).
0
Deerfield, Tuesday, 20 October
Mostly clear. High 62°, low 35°.
0Deerfield, Wednesday, 21 October
Clear. High 57°, low 33°.
0
Deerfield, Thursday, 22 October
Light rain. High 52°, low 36°.
0
Deerfield, Friday, 23 October
Overcast. High 45°, low 32°.
0Deerfield, Saturday, 24 October
Clear. High 53°, low 32°.
0Deerfield, Sunday, 25 October
Clear. High 61°, low 35°.
0Deerfield, Monday, 26 October
Light rain. High 62°, low 45°.
0Deerfield, Tuesday, 27 October
Overcast. High 64°, low 50°.
0.15Deerfield, Wednesday, 28 October
Light rain. High 53°, low 30°.
0.06
Deerfield, Thursday, 29 October
Light snow. High 39°, low 27°.
0
Deerfield, Friday, 30 October
Partly cloudy. High 49°, low 30°.
0Deerfield, Saturday, 31 October
Overcast. High 55°, low 39°.
0.26Deerfield, Sunday, 1 November
Light rain. High 50°, low 43°.
0.15Deerfield, Monday, 2 November
Light rain. High 55°, low 49°.
0Deerfield, Tuesday, 3 November
Overcast. High 48°, low 43°.
0.1Deerfield, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08
Deerfield, 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.
0.15Deerfield, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Deerfield, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Deerfield, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Deerfield, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Deerfield, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Deerfield, Tuesday, 17 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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