Weather in Tiffin, IA
Tiffin, Friday, 13 November, 01:40
Overcast. Feels like 29°. High 41°, low 30°.
Monthly outlook for Tiffin, IA: average high 51.1°, average low 37°. That is 3.2° above the climate normal for November. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 21 November (64.8°), the coolest 26 November (25.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 54.2° | 47.1° | +3.9° |
| 23 November – 2 December | 45.9° | 41.2° | +2.6° |
| 3 December – 12 December | at normal | 35.3° | — |
November records over 66 years
0
Tiffin, Saturday, 14 November
Clear. High 44°, low 27°.
0Tiffin, Sunday, 15 November
Clear. High 47°, low 30°.
0Tiffin, Monday, 16 November
Clear. High 52°, low 31°.
0Tiffin, Tuesday, 17 November
Clear. High 54°, low 34°.
0Tiffin, Wednesday, 18 November
Overcast. High 56°, low 38°.
0.05
Tiffin, Thursday, 19 November
Light rain. High 61°, low 49°.
0Tiffin, Friday, 20 November
Overcast. High 63°, low 44°.
0Tiffin, Saturday, 21 November
Overcast. High 65°, low 57°.
0.07Tiffin, Sunday, 22 November
Light rain. High 60°, low 55°.
0.06Tiffin, Monday, 23 November
Light rain. High 63°, low 47°.
0.03
Tiffin, Tuesday, 24 November
Light snow. High 43°, low 30°.
0Tiffin, Wednesday, 25 November
Clear. High 34°, low 26°.
0Tiffin, Thursday, 26 November
Overcast. High 35°, low 25°.
0Tiffin, Friday, 27 November
Overcast. High 50°, low 31°.
0Tiffin, Saturday, 28 November
Overcast. High 50°, low 39°.
0.07
Tiffin, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Tiffin, Monday, 30 November
Climate normal for this date — 60-year average.
0.09Tiffin, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.06Tiffin, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08Tiffin, Thursday, 3 December
Climate normal for this date — 60-year average.
0.05
Tiffin, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Tiffin, Saturday, 5 December
Climate normal for this date — 60-year average.
0.05Tiffin, Sunday, 6 December
Climate normal for this date — 60-year average.
0.07Tiffin, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Tiffin, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.07Tiffin, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.06Tiffin, Thursday, 10 December
Climate normal for this date — 60-year average.
0.09Tiffin, Friday, 11 December
Climate normal for this date — 60-year average.
0.05Tiffin, Saturday, 12 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 Tiffin, IA 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 Tiffin, IA 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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