Weather in Northumberland, PA
Northumberland, Thursday, 29 October, 22:34
Partly cloudy. Feels like 51°. High 69°, low 45°.
Monthly outlook for Northumberland, PA: average high 56.2°, average low 41.5°. That is 1.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (69.3°), the coolest 12 November (27.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 62.4° | 55.3° | +4° |
| 8 November – 17 November | 45.8° | 50° | -2.3° |
| 18 November – 27 November | at normal | 46.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lewisburg (7 mi).
0
Northumberland, Friday, 30 October
Clear. High 60°, low 41°.
0
Northumberland, Saturday, 31 October
Overcast. High 58°, low 37°.
0Northumberland, Sunday, 1 November
Overcast. High 60°, low 39°.
0Northumberland, Monday, 2 November
Overcast. High 62°, low 42°.
0Northumberland, Tuesday, 3 November
Overcast. High 65°, low 44°.
0Northumberland, Wednesday, 4 November
Clear. High 67°, low 48°.
0.42
Northumberland, Thursday, 5 November
Rain. High 63°, low 54°.
0.48Northumberland, Friday, 6 November
Rain. High 63°, low 60°.
0Northumberland, Saturday, 7 November
Overcast. High 57°, low 48°.
0Northumberland, Sunday, 8 November
Clear. High 51°, low 36°.
0.09Northumberland, Monday, 9 November
Light rain. High 51°, low 34°.
0.15Northumberland, Tuesday, 10 November
Light rain. High 45°, low 42°.
0.01Northumberland, Wednesday, 11 November
Light rain. High 45°, low 32°.
0Northumberland, Thursday, 12 November
Overcast. High 44°, low 27°.
0.2
Northumberland, Friday, 13 November
Snow. High 39°, low 34°.
0.08
Northumberland, Saturday, 14 November
Climate normal for this date — 60-year average.
0.14
Northumberland, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Northumberland, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Northumberland, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Northumberland, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.1Northumberland, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Northumberland, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Northumberland, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11Northumberland, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Northumberland, Monday, 23 November
Climate normal for this date — 60-year average.
0.11Northumberland, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12Northumberland, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.21Northumberland, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Northumberland, Friday, 27 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 Northumberland, 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 Northumberland, 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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