Weather in Swallow Hill, DE
Swallow Hill, Sunday, 9 August, 00:12
Partly cloudy. Feels like 74°. High 88°, low 72°.
Monthly outlook for Swallow Hill, DE: average high 80.7°, average low 65.6°. That is 1.1° below the climate normal for August. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 11 August (87.9°), the coolest 22 August (57.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 81.6° | 83.3° | -1° |
| 19 August – 28 August | 79.3° | 82.1° | -1.5° |
| 29 August – 7 September | at normal | 80.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Elsmere (4 mi).
0.02
Swallow Hill, Monday, 10 August
Light rain. High 87°, low 72°.
0.2Swallow Hill, Tuesday, 11 August
Rain. High 88°, low 71°.
0.02Swallow Hill, Wednesday, 12 August
Light rain. High 85°, low 71°.
0
Swallow Hill, Thursday, 13 August
Mostly clear. High 83°, low 68°.
0
Swallow Hill, Friday, 14 August
Partly cloudy. High 77°, low 62°.
0
Swallow Hill, Saturday, 15 August
Clear. High 79°, low 62°.
0
Swallow Hill, Sunday, 16 August
Overcast. High 79°, low 61°.
0.19Swallow Hill, Monday, 17 August
Rain. High 78°, low 65°.
0.23Swallow Hill, Tuesday, 18 August
Light rain. High 71°, low 65°.
0.07Swallow Hill, Wednesday, 19 August
Light rain. High 75°, low 65°.
0.81Swallow Hill, Thursday, 20 August
Rain. High 77°, low 67°.
0Swallow Hill, Friday, 21 August
Clear. High 78°, low 60°.
0Swallow Hill, Saturday, 22 August
Mostly clear. High 77°, low 58°.
0Swallow Hill, Sunday, 23 August
Overcast. High 84°, low 63°.
0Swallow Hill, Monday, 24 August
Clear. High 86°, low 70°.
0.06Swallow Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Swallow Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18
Swallow Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
0.23Swallow Hill, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Swallow Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Swallow Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Swallow Hill, Monday, 31 August
Climate normal for this date — 60-year average.
0.14Swallow Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1Swallow Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13Swallow Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Swallow Hill, Friday, 4 September
Climate normal for this date — 60-year average.
0.11Swallow Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22Swallow Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11Swallow Hill, 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 Swallow Hill, DE 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 Swallow Hill, DE 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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