Weather in Summit Hills, PR
Summit Hills, Sunday, 18 October, 21:58
Clear. Feels like 79°. High 88°, low 76°.
Monthly outlook for Summit Hills, PR: average high 86.3°, average low 75.1°. That is 0.4° above the climate normal for October. Precipitation is expected on 14 days (about 4.5 inches), against a normal of 11 days and 2.4 inches. The warmest day looks like 24 October (88.9°), the coolest 21 October (70.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 88.1° | 85.8° | +1.3° |
| 28 October – 6 November | 83.3° | 85° | -0.9° |
| 7 November – 16 November | at normal | 83.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Guaynabo (1 mi).
0.19
Summit Hills, Monday, 19 October
Rain. High 88°, low 77°.
0.21Summit Hills, Tuesday, 20 October
Rain. High 87°, low 75°.
0.1Summit Hills, Wednesday, 21 October
Light rain. High 87°, low 71°.
0.05Summit Hills, Thursday, 22 October
Light rain. High 89°, low 73°.
0.2Summit Hills, Friday, 23 October
Light rain. High 88°, low 76°.
0.01Summit Hills, Saturday, 24 October
Light rain. High 89°, low 77°.
0.07Summit Hills, Sunday, 25 October
Light rain. High 89°, low 77°.
0.04Summit Hills, Monday, 26 October
Light rain. High 88°, low 77°.
0.05Summit Hills, Tuesday, 27 October
Light rain. High 88°, low 76°.
0.1Summit Hills, Wednesday, 28 October
Light rain. High 87°, low 76°.
0.2Summit Hills, Thursday, 29 October
Rain. High 86°, low 76°.
0.79Summit Hills, Friday, 30 October
Rain. High 86°, low 76°.
0.8Summit Hills, Saturday, 31 October
Rain. High 82°, low 73°.
0.86Summit Hills, Sunday, 1 November
Rain. High 79°, low 73°.
0.78Summit Hills, Monday, 2 November
Heavy rain. High 79°, low 73°.
0.12Summit Hills, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.14Summit Hills, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.14Summit Hills, Thursday, 5 November
Climate normal for this date — 60-year average.
0.17Summit Hills, Friday, 6 November
Climate normal for this date — 60-year average.
0.19Summit Hills, Saturday, 7 November
Climate normal for this date — 60-year average.
0.18Summit Hills, Sunday, 8 November
Climate normal for this date — 60-year average.
0.2Summit Hills, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Summit Hills, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.16Summit Hills, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Summit Hills, Thursday, 12 November
Climate normal for this date — 60-year average.
0.13Summit Hills, Friday, 13 November
Climate normal for this date — 60-year average.
0.1Summit Hills, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Summit Hills, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Summit Hills, Monday, 16 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 Summit Hills, PR 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 Summit Hills, PR 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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