Weather in Perth, NY
Perth, Saturday, 8 August, 22:24
Clear. Feels like 70°. High 83°, low 69°.
Monthly outlook for Perth, NY: average high 75.6°, average low 56.2°. That is 0.7° below the climate normal for August. Precipitation is expected on 9 days (about 1.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 8 August (83.3°), the coolest 22 August (44.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 77.5° | 77.7° | -0.2° |
| 18 August – 27 August | 72.6° | 75.7° | -1.7° |
| 28 August – 6 September | at normal | 74.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Hagaman (3 mi).
0
Perth, Sunday, 9 August
Clear. High 82°, low 65°.
0.04
Perth, Monday, 10 August
Light rain. High 80°, low 61°.
0
Perth, Tuesday, 11 August
Overcast. High 82°, low 66°.
0.48Perth, Wednesday, 12 August
Rain. High 77°, low 60°.
0.06Perth, Thursday, 13 August
Light rain. High 73°, low 53°.
0
Perth, Friday, 14 August
Partly cloudy. High 70°, low 53°.
0Perth, Saturday, 15 August
Clear. High 74°, low 50°.
0Perth, Sunday, 16 August
Clear. High 75°, low 48°.
0.05Perth, Monday, 17 August
Light rain. High 78°, low 51°.
0.11Perth, Tuesday, 18 August
Light rain. High 73°, low 61°.
0.23Perth, Wednesday, 19 August
Rain. High 75°, low 58°.
0.5Perth, Thursday, 20 August
Rain. High 73°, low 58°.
0Perth, Friday, 21 August
Partly cloudy. High 72°, low 52°.
0Perth, Saturday, 22 August
Clear. High 72°, low 45°.
0.13Perth, Sunday, 23 August
Light rain. High 71°, low 50°.
0.15Perth, Monday, 24 August
Climate normal for this date — 60-year average.
0.09
Perth, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05
Perth, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18Perth, Thursday, 27 August
Climate normal for this date — 60-year average.
0.2Perth, Friday, 28 August
Climate normal for this date — 60-year average.
0.17Perth, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Perth, Sunday, 30 August
Climate normal for this date — 60-year average.
0.1Perth, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Perth, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1Perth, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Perth, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Perth, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Perth, Saturday, 5 September
Climate normal for this date — 60-year average.
0.15Perth, Sunday, 6 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 Perth, NY 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 Perth, NY 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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