Weather in Hartly, DE
Hartly, Friday, 9 October, 16:41
Overcast. Feels like 71°. High 73°, low 47°.
Monthly outlook for Hartly, DE: average high 67.4°, average low 49.5°. That is 0.7° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (79.6°), the coolest 19 October (33.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 70.6° | 67.2° | +1.9° |
| 19 October – 28 October | 62° | 63.6° | -0.9° |
| 29 October – 7 November | at normal | 60.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Marydel (4 mi).
0Hartly, Saturday, 10 October
Overcast. High 73°, low 48°.
1.01
Hartly, Sunday, 11 October
Heavy rain. High 69°, low 53°.
0.06Hartly, Monday, 12 October
Light rain. High 72°, low 61°.
0
Hartly, Tuesday, 13 October
Clear. High 79°, low 59°.
0.01Hartly, Wednesday, 14 October
Light rain. High 80°, low 67°.
0Hartly, Thursday, 15 October
Clear. High 66°, low 54°.
0Hartly, Friday, 16 October
Overcast. High 74°, low 55°.
0.03Hartly, Saturday, 17 October
Light rain. High 66°, low 47°.
0Hartly, Sunday, 18 October
Overcast. High 54°, low 40°.
0
Hartly, Monday, 19 October
Mostly clear. High 53°, low 34°.
0Hartly, Tuesday, 20 October
Overcast. High 57°, low 41°.
0Hartly, Wednesday, 21 October
Clear. High 60°, low 43°.
0Hartly, Thursday, 22 October
Clear. High 63°, low 44°.
0Hartly, Friday, 23 October
Clear. High 69°, low 48°.
0Hartly, Saturday, 24 October
Clear. High 70°, low 50°.
0.11
Hartly, Sunday, 25 October
Climate normal for this date — 60-year average.
0.15Hartly, Monday, 26 October
Climate normal for this date — 60-year average.
0.15Hartly, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Hartly, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.28Hartly, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Hartly, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Hartly, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1Hartly, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Hartly, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Hartly, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Hartly, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Hartly, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Hartly, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Hartly, Saturday, 7 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 Hartly, 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 Hartly, 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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