Weather in Upper Gwynedd, PA
Upper Gwynedd, Sunday, 18 October, 14:38
Clear. Feels like 56°. High 59°, low 36°.
Monthly outlook for Upper Gwynedd, PA: average high 62.1°, average low 46.4°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 31 October (73.1°), the coolest 18 October (35.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 59.8° | 61.2° | -0.8° |
| 28 October – 6 November | 65.9° | 58.2° | +4.3° |
| 7 November – 16 November | at normal | 53.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — North Wales (1 mi).
0Upper Gwynedd, Monday, 19 October
Clear. High 62°, low 40°.
0Upper Gwynedd, Tuesday, 20 October
Clear. High 65°, low 45°.
0Upper Gwynedd, Wednesday, 21 October
Clear. High 60°, low 43°.
0Upper Gwynedd, Thursday, 22 October
Clear. High 62°, low 42°.
0Upper Gwynedd, Friday, 23 October
Clear. High 54°, low 40°.
0Upper Gwynedd, Saturday, 24 October
Clear. High 55°, low 38°.
0
Upper Gwynedd, Sunday, 25 October
Overcast. High 59°, low 43°.
0Upper Gwynedd, Monday, 26 October
Overcast. High 62°, low 52°.
0.02
Upper Gwynedd, Tuesday, 27 October
Light rain. High 60°, low 49°.
0Upper Gwynedd, Wednesday, 28 October
Overcast. High 59°, low 44°.
1.01Upper Gwynedd, Thursday, 29 October
Rain. High 62°, low 52°.
0.2Upper Gwynedd, Friday, 30 October
Rain. High 72°, low 60°.
0Upper Gwynedd, Saturday, 31 October
Overcast. High 73°, low 58°.
0.07Upper Gwynedd, Sunday, 1 November
Light rain. High 70°, low 54°.
0Upper Gwynedd, Monday, 2 November
Overcast. High 59°, low 47°.
0.07
Upper Gwynedd, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Upper Gwynedd, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Upper Gwynedd, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Upper Gwynedd, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Upper Gwynedd, Saturday, 7 November
Climate normal for this date — 60-year average.
0.12Upper Gwynedd, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Upper Gwynedd, Monday, 9 November
Climate normal for this date — 60-year average.
0.16
Upper Gwynedd, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Upper Gwynedd, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.18Upper Gwynedd, Thursday, 12 November
Climate normal for this date — 60-year average.
0.14Upper Gwynedd, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Upper Gwynedd, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Upper Gwynedd, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Upper Gwynedd, Monday, 16 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 Upper Gwynedd, 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 Upper Gwynedd, 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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