Weather in Granby, CO
Granby, Wednesday, 14 October, 16:00
Overcast. Feels like 48°. High 50°, low 37°.
Monthly outlook for Granby, CO: average high 54.2°, average low 31.6°. That is 2.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 18 October (64°), the coolest 25 October (19.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 57° | 50.8° | +3.5° |
| 24 October – 2 November | 49.6° | 44.7° | +2.7° |
| 3 November – 12 November | at normal | 40.9° | — |
October records over 66 years
0.12
Granby, Thursday, 15 October
Snow. High 49°, low 30°.
0
Granby, Friday, 16 October
Clear. High 58°, low 27°.
0Granby, Saturday, 17 October
Clear. High 61°, low 35°.
0Granby, Sunday, 18 October
Overcast. High 64°, low 36°.
0Granby, Monday, 19 October
Overcast. High 62°, low 37°.
0
Granby, Tuesday, 20 October
Partly cloudy. High 60°, low 37°.
0Granby, Wednesday, 21 October
Partly cloudy. High 59°, low 40°.
0Granby, Thursday, 22 October
Clear. High 64°, low 38°.
0.49Granby, Friday, 23 October
Snow. High 43°, low 35°.
0.16Granby, Saturday, 24 October
Snow. High 39°, low 22°.
0Granby, Sunday, 25 October
Clear. High 48°, low 19°.
0Granby, Monday, 26 October
Overcast. High 52°, low 25°.
0
Granby, Tuesday, 27 October
Mostly clear. High 50°, low 26°.
0Granby, Wednesday, 28 October
Mostly clear. High 52°, low 28°.
0Granby, Thursday, 29 October
Clear. High 57°, low 33°.
0.05Granby, Friday, 30 October
Climate normal for this date — 60-year average.
0.04
Granby, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Granby, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Granby, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Granby, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Granby, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Granby, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Granby, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Granby, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Granby, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Granby, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Granby, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Granby, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Granby, Thursday, 12 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 Granby, CO 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 Granby, CO 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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