Weather in Granby, CO
Granby, Tuesday, 13 October, 09:27
Partly cloudy. Feels like 39°. High 56°, low 41°.
Monthly outlook for Granby, CO: average high 49.6°, average low 29.4°. That is 0° below the climate normal for October. Precipitation is expected on 10 days (about 2.4 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 17 October (60.4°), the coolest 25 October (15.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 53.5° | 51.2° | +1.3° |
| 23 October – 1 November | 43.2° | 45.4° | -1.3° |
| 2 November – 11 November | at normal | 41.3° | — |
October records over 66 years
0.41
Granby, Wednesday, 14 October
Snow. High 49°, low 40°.
0.3Granby, Thursday, 15 October
Snow. High 48°, low 26°.
0
Granby, Friday, 16 October
Mostly clear. High 59°, low 28°.
0
Granby, Saturday, 17 October
Clear. High 60°, low 33°.
0
Granby, Sunday, 18 October
Light rain. High 53°, low 37°.
0Granby, Monday, 19 October
Clear. High 57°, low 32°.
0Granby, Tuesday, 20 October
Clear. High 58°, low 36°.
0.07Granby, Wednesday, 21 October
Snow. High 58°, low 35°.
0.61Granby, Thursday, 22 October
Snow. High 37°, low 27°.
0.15Granby, Friday, 23 October
Light snow. High 38°, low 23°.
0.11Granby, Saturday, 24 October
Light snow. High 38°, low 20°.
0Granby, Sunday, 25 October
Clear. High 49°, low 16°.
0.05Granby, Monday, 26 October
Light rain. High 51°, low 24°.
0.05Granby, Tuesday, 27 October
Snow. High 43°, low 28°.
0.32Granby, Wednesday, 28 October
Snow. High 39°, low 24°.
0.07Granby, Thursday, 29 October
Climate normal for this date — 60-year average.
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.
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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