Weather in Swann Keys, DE
Swann Keys, Sunday, 9 August, 00:11
Overcast. Feels like 88°. High 90°, low 74°.
Monthly outlook for Swann Keys, DE: average high 80.2°, average low 69.7°. That is 0.2° below the climate normal for August. Precipitation is expected on 6 days (about 0.7 inches), against a normal of 6 days and 2.5 inches. The warmest day looks like 9 August (90.1°), the coolest 15 August (62.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.7° | 81.2° | -0.2° |
| 19 August – 28 August | 79.3° | 79.9° | -0.3° |
| 29 August – 7 September | at normal | 78.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — South Bethany (3 mi).
0
Swann Keys, Monday, 10 August
Clear. High 89°, low 75°.
0.07
Swann Keys, Tuesday, 11 August
Light rain. High 83°, low 73°.
0Swann Keys, Wednesday, 12 August
Overcast. High 83°, low 73°.
0.15Swann Keys, Thursday, 13 August
Light rain. High 83°, low 72°.
0Swann Keys, Friday, 14 August
Overcast. High 74°, low 65°.
0Swann Keys, Saturday, 15 August
Clear. High 77°, low 63°.
0Swann Keys, Sunday, 16 August
Overcast. High 76°, low 68°.
0Swann Keys, Monday, 17 August
Overcast. High 77°, low 70°.
0.2Swann Keys, Tuesday, 18 August
Light rain. High 74°, low 69°.
0.06Swann Keys, Wednesday, 19 August
Light rain. High 75°, low 68°.
0.11Swann Keys, Thursday, 20 August
Light rain. High 81°, low 72°.
0Swann Keys, Friday, 21 August
Clear. High 77°, low 67°.
0Swann Keys, Saturday, 22 August
Clear. High 74°, low 67°.
0.06Swann Keys, Sunday, 23 August
Light rain. High 80°, low 70°.
0.01Swann Keys, Monday, 24 August
Light rain. High 88°, low 72°.
0.04
Swann Keys, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07Swann Keys, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Swann Keys, Thursday, 27 August
Climate normal for this date — 60-year average.
0.18
Swann Keys, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Swann Keys, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Swann Keys, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Swann Keys, Monday, 31 August
Climate normal for this date — 60-year average.
0.22Swann Keys, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1Swann Keys, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Swann Keys, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Swann Keys, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Swann Keys, Saturday, 5 September
Climate normal for this date — 60-year average.
0.2Swann Keys, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09Swann Keys, 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 Swann Keys, 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 Swann Keys, 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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