Weather in Gwynedd Valley, PA
Gwynedd Valley, Sunday, 9 August, 06:51
Partly cloudy. Feels like 73°. High 86°, low 71°.
Monthly outlook for Gwynedd Valley, PA: average high 86.4°, average low 68.4°. That is 2.3° above the climate normal for August. Precipitation is expected on 4 days (about 0.3 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 23 August (94.4°), the coolest 15 August (58.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 83.1° | 83° | +0° |
| 19 August – 28 August | 91.9° | 81.6° | +5.7° |
| 29 August – 7 September | at normal | 80.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Roslyn (7 mi).
0.02
Gwynedd Valley, Monday, 10 August
Light rain. High 88°, low 71°.
0.06Gwynedd Valley, Tuesday, 11 August
Light rain. High 88°, low 71°.
0.02Gwynedd Valley, Wednesday, 12 August
Light rain. High 82°, low 72°.
0.06Gwynedd Valley, Thursday, 13 August
Light rain. High 83°, low 68°.
0
Gwynedd Valley, Friday, 14 August
Overcast. High 77°, low 60°.
0
Gwynedd Valley, Saturday, 15 August
Clear. High 78°, low 59°.
0Gwynedd Valley, Sunday, 16 August
Overcast. High 80°, low 59°.
0Gwynedd Valley, Monday, 17 August
Partly cloudy. High 83°, low 65°.
0
Gwynedd Valley, Tuesday, 18 August
Mostly clear. High 86°, low 65°.
0Gwynedd Valley, Wednesday, 19 August
Clear. High 89°, low 69°.
0Gwynedd Valley, Thursday, 20 August
Partly cloudy. High 90°, low 69°.
0.06Gwynedd Valley, Friday, 21 August
Light rain. High 94°, low 73°.
0.06Gwynedd Valley, Saturday, 22 August
Light rain. High 92°, low 74°.
0Gwynedd Valley, Sunday, 23 August
Clear. High 94°, low 72°.
0.04Gwynedd Valley, Monday, 24 August
Light rain. High 91°, low 77°.
0.06Gwynedd Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07Gwynedd Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.2
Gwynedd Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
0.25Gwynedd Valley, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Gwynedd Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Gwynedd Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Gwynedd Valley, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Gwynedd Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13Gwynedd Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.17Gwynedd Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Gwynedd Valley, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Gwynedd Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22Gwynedd Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Gwynedd Valley, Monday, 7 September
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 Gwynedd Valley, 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 Gwynedd Valley, 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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