Weather in Mount Joy, DE
Mount Joy, Saturday, 10 October, 04:12
Overcast. Feels like 51°. High 72°, low 52°.
Monthly outlook for Mount Joy, DE: average high 68.8°, average low 54.1°. That is 1.8° above the climate normal for October. Precipitation is expected on 7 days (about 2.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 13 October (78.9°), the coolest 19 October (39.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 70.3° | 66.5° | +2.1° |
| 20 October – 29 October | 66.4° | 63.3° | +1.7° |
| 30 October – 8 November | at normal | 60.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dewey Beach (13 mi).
0.58
Mount Joy, Sunday, 11 October
Rain. High 72°, low 57°.
0.04Mount Joy, Monday, 12 October
Light rain. High 71°, low 62°.
0
Mount Joy, Tuesday, 13 October
Clear. High 79°, low 57°.
0
Mount Joy, Wednesday, 14 October
Partly cloudy. High 79°, low 67°.
0.05Mount Joy, Thursday, 15 October
Light rain. High 66°, low 53°.
0.44Mount Joy, Friday, 16 October
Rain. High 78°, low 54°.
0.23Mount Joy, Saturday, 17 October
Light rain. High 77°, low 49°.
0.03Mount Joy, Sunday, 18 October
Light rain. High 52°, low 44°.
0Mount Joy, Monday, 19 October
Clear. High 57°, low 39°.
0Mount Joy, Tuesday, 20 October
Clear. High 61°, low 43°.
0.01Mount Joy, Wednesday, 21 October
Light rain. High 63°, low 54°.
0Mount Joy, Thursday, 22 October
Overcast. High 68°, low 54°.
0.43Mount Joy, Friday, 23 October
Rain. High 70°, low 62°.
0.1Mount Joy, Saturday, 24 October
Light rain. High 73°, low 58°.
0.17Mount Joy, Sunday, 25 October
Light rain. High 64°, low 60°.
0.17
Mount Joy, Monday, 26 October
Climate normal for this date — 60-year average.
0.16Mount Joy, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Mount Joy, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.28
Mount Joy, Thursday, 29 October
Climate normal for this date — 60-year average.
0.1Mount Joy, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Mount Joy, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1Mount Joy, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Mount Joy, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Mount Joy, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Mount Joy, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Mount Joy, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Mount Joy, Friday, 6 November
Climate normal for this date — 60-year average.
0.13Mount Joy, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Mount Joy, Sunday, 8 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 Mount Joy, 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 Mount Joy, 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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