Weather in Waipahu, HI
Waipahu, Sunday, 18 October, 00:05
Light rain. Feels like 75°. High 81°, low 74°.
Monthly outlook for Waipahu, HI: average high 79.9°, average low 75.4°. That is 1.4° below the climate normal for October. Precipitation is expected on 6 days (about 2.6 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 24 October (82.8°), the coolest 29 October (71.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 80.7° | 82.7° | -1.1° |
| 28 October – 6 November | 78.6° | 81.9° | -1.8° |
| 7 November – 16 November | at normal | 80.9° | — |
October records over 66 years
0
Waipahu, Monday, 19 October
Clear. High 82°, low 77°.
0Waipahu, Tuesday, 20 October
Clear. High 81°, low 76°.
0Waipahu, Wednesday, 21 October
Clear. High 82°, low 76°.
0Waipahu, Thursday, 22 October
Light rain. High 80°, low 76°.
0
Waipahu, Friday, 23 October
Overcast. High 81°, low 76°.
0Waipahu, Saturday, 24 October
Clear. High 83°, low 76°.
0Waipahu, Sunday, 25 October
Overcast. High 80°, low 76°.
0Waipahu, Monday, 26 October
Overcast. High 79°, low 75°.
0.16Waipahu, Tuesday, 27 October
Light rain. High 78°, low 75°.
0.13Waipahu, Wednesday, 28 October
Rain. High 76°, low 74°.
1.29Waipahu, Thursday, 29 October
Rain. High 76°, low 71°.
0.69Waipahu, Friday, 30 October
Rain. High 79°, low 73°.
0.22Waipahu, Saturday, 31 October
Light rain. High 81°, low 77°.
0.06Waipahu, Sunday, 1 November
Light rain. High 80°, low 78°.
0.01Waipahu, Monday, 2 November
Light rain. High 79°, low 78°.
0.05
Waipahu, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Waipahu, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Waipahu, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07
Waipahu, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Waipahu, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Waipahu, Sunday, 8 November
Climate normal for this date — 60-year average.
0.03Waipahu, Monday, 9 November
Climate normal for this date — 60-year average.
0.02
Waipahu, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Waipahu, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Waipahu, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Waipahu, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Waipahu, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Waipahu, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Waipahu, 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 Waipahu, HI 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 Waipahu, HI 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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