Weather in Riverdale, DE
Riverdale, Wednesday, 21 October, 15:05
Clear. Feels like 60°. High 62°, low 47°.
Monthly outlook for Riverdale, DE: average high 64.3°, average low 53.2°. That is 1.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 5 November (70°), the coolest 26 October (41.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 63.8° | 62.9° | +0.5° |
| 31 October – 9 November | 65.1° | 60.5° | +2.6° |
| 10 November – 19 November | at normal | 56.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — South Bethany (9 mi).
0Riverdale, Thursday, 22 October
Clear. High 66°, low 44°.
0
Riverdale, Friday, 23 October
Partly cloudy. High 59°, low 46°.
0
Riverdale, Saturday, 24 October
Overcast. High 60°, low 46°.
0Riverdale, Sunday, 25 October
Clear. High 63°, low 49°.
0Riverdale, Monday, 26 October
Clear. High 66°, low 42°.
0
Riverdale, Tuesday, 27 October
Mostly clear. High 61°, low 48°.
0Riverdale, Wednesday, 28 October
Overcast. High 64°, low 54°.
0.04
Riverdale, Thursday, 29 October
Light rain. High 69°, low 59°.
0Riverdale, Friday, 30 October
Overcast. High 66°, low 56°.
0Riverdale, Saturday, 31 October
Clear. High 59°, low 54°.
0.01Riverdale, Sunday, 1 November
Light rain. High 62°, low 58°.
0.04Riverdale, Monday, 2 November
Light rain. High 67°, low 63°.
0.07Riverdale, Tuesday, 3 November
Light rain. High 67°, low 63°.
1.32Riverdale, Wednesday, 4 November
Rain. High 65°, low 63°.
0.21Riverdale, Thursday, 5 November
Rain. High 70°, low 58°.
0.09Riverdale, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Riverdale, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Riverdale, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Riverdale, Monday, 9 November
Climate normal for this date — 60-year average.
0.11
Riverdale, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Riverdale, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.23Riverdale, Thursday, 12 November
Climate normal for this date — 60-year average.
0.17Riverdale, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Riverdale, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Riverdale, Sunday, 15 November
Climate normal for this date — 60-year average.
0.08Riverdale, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Riverdale, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05Riverdale, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Riverdale, Thursday, 19 November
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 Riverdale, 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 Riverdale, 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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