Weather in Derby Wharf, MA
Derby Wharf, Sunday, 9 August, 04:58
Clear. Feels like 71°. High 96°, low 71°.
Monthly outlook for Derby Wharf, MA: average high 80.6°, average low 65.7°. That is 2.6° above the climate normal for August. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (95.8°), the coolest 15 August (58°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.9° | 76.6° | +2.4° |
| 19 August – 28 August | 80.1° | 74.9° | +2.9° |
| 29 August – 7 September | at normal | 73.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Salem (1 mi).
0
Derby Wharf, Monday, 10 August
Clear. High 88°, low 70°.
0
Derby Wharf, Tuesday, 11 August
Overcast. High 85°, low 69°.
0Derby Wharf, Wednesday, 12 August
Overcast. High 78°, low 67°.
0.04
Derby Wharf, Thursday, 13 August
Light rain. High 80°, low 67°.
0Derby Wharf, Friday, 14 August
Clear. High 75°, low 59°.
0Derby Wharf, Saturday, 15 August
Clear. High 77°, low 58°.
0Derby Wharf, Sunday, 16 August
Overcast. High 76°, low 62°.
0Derby Wharf, Monday, 17 August
Overcast. High 77°, low 64°.
0Derby Wharf, Tuesday, 18 August
Clear. High 76°, low 63°.
0Derby Wharf, Wednesday, 19 August
Overcast. High 75°, low 61°.
0Derby Wharf, Thursday, 20 August
Overcast. High 82°, low 67°.
0.04Derby Wharf, Friday, 21 August
Light rain. High 88°, low 70°.
0.01Derby Wharf, Saturday, 22 August
Light rain. High 84°, low 71°.
0.01Derby Wharf, Sunday, 23 August
Light rain. High 81°, low 68°.
0Derby Wharf, Monday, 24 August
Overcast. High 72°, low 64°.
0.12
Derby Wharf, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06
Derby Wharf, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Derby Wharf, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11Derby Wharf, Friday, 28 August
Climate normal for this date — 60-year average.
0.17Derby Wharf, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14Derby Wharf, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Derby Wharf, Monday, 31 August
Climate normal for this date — 60-year average.
0.05Derby Wharf, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.16Derby Wharf, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13
Derby Wharf, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Derby Wharf, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Derby Wharf, Saturday, 5 September
Climate normal for this date — 60-year average.
0.15Derby Wharf, Sunday, 6 September
Climate normal for this date — 60-year average.
0.12Derby Wharf, 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 Derby Wharf, MA 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 Derby Wharf, MA 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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