Weather in Tiernan, OR
Tiernan, Sunday, 15 November, 10:37
Overcast. Feels like 53°. High 54°, low 44°.
Monthly outlook for Tiernan, OR: average high 52.5°, average low 41.8°. That is 0.1° above the climate normal for November. Precipitation is expected on 11 days (about 9.7 inches), against a normal of 9 days and 5.6 inches. The warmest day looks like 30 November (59.2°), the coolest 20 November (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 51.5° | 53.1° | -0.9° |
| 25 November – 4 December | 54.1° | 51.1° | +1.7° |
| 5 December – 14 December | at normal | 49.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Mapleton (4 mi).
0.28
Tiernan, Monday, 16 November
Rain. High 48°, low 42°.
0.03Tiernan, Tuesday, 17 November
Light rain. High 54°, low 37°.
0.6Tiernan, Wednesday, 18 November
Rain. High 49°, low 37°.
0
Tiernan, Thursday, 19 November
Partly cloudy. High 53°, low 35°.
0.02Tiernan, Friday, 20 November
Light rain. High 51°, low 34°.
0.42Tiernan, Saturday, 21 November
Light rain. High 46°, low 41°.
2.75Tiernan, Sunday, 22 November
Heavy rain. High 49°, low 38°.
1.25Tiernan, Monday, 23 November
Rain. High 58°, low 50°.
1.38Tiernan, Tuesday, 24 November
Rain. High 53°, low 45°.
0.54Tiernan, Wednesday, 25 November
Rain. High 54°, low 42°.
1.27Tiernan, Thursday, 26 November
Rain. High 53°, low 46°.
0.23Tiernan, Friday, 27 November
Rain. High 53°, low 46°.
0.25Tiernan, Saturday, 28 November
Light rain. High 51°, low 45°.
0Tiernan, Sunday, 29 November
Overcast. High 54°, low 44°.
0
Tiernan, Monday, 30 November
Clear. High 59°, low 43°.
0.4Tiernan, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.49Tiernan, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.41Tiernan, Thursday, 3 December
Climate normal for this date — 60-year average.
0.4Tiernan, Friday, 4 December
Climate normal for this date — 60-year average.
0.36Tiernan, Saturday, 5 December
Climate normal for this date — 60-year average.
0.41Tiernan, Sunday, 6 December
Climate normal for this date — 60-year average.
0.33Tiernan, Monday, 7 December
Climate normal for this date — 60-year average.
0.3Tiernan, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.34Tiernan, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.43Tiernan, Thursday, 10 December
Climate normal for this date — 60-year average.
0.46Tiernan, Friday, 11 December
Climate normal for this date — 60-year average.
0.36Tiernan, Saturday, 12 December
Climate normal for this date — 60-year average.
0.52Tiernan, Sunday, 13 December
Climate normal for this date — 60-year average.
0.45Tiernan, Monday, 14 December
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 Tiernan, OR 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 Tiernan, OR 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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