Weather in Granby, CO
Granby, Monday, 19 October, 08:46
Clear. Feels like 34°. High 59°, low 34°.
Monthly outlook for Granby, CO: average high 53.3°, average low 34.6°. That is 3.9° above the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 21 October (64.5°), the coolest 1 November (28.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 57° | 48.5° | +4.7° |
| 29 October – 7 November | 47.2° | 42.3° | +2.7° |
| 8 November – 17 November | at normal | 38.5° | — |
October records over 66 years
0
Granby, Tuesday, 20 October
Partly cloudy. High 62°, low 37°.
0
Granby, Wednesday, 21 October
Light rain. High 65°, low 37°.
0.1Granby, Thursday, 22 October
Light rain. High 57°, low 41°.
0Granby, Friday, 23 October
Partly cloudy. High 57°, low 41°.
0.02Granby, Saturday, 24 October
Light rain. High 50°, low 33°.
0Granby, Sunday, 25 October
Clear. High 57°, low 33°.
0Granby, Monday, 26 October
Partly cloudy. High 55°, low 34°.
0Granby, Tuesday, 27 October
Clear. High 54°, low 32°.
0Granby, Wednesday, 28 October
Partly cloudy. High 54°, low 30°.
0Granby, Thursday, 29 October
Partly cloudy. High 54°, low 31°.
0.14
Granby, Friday, 30 October
Snow. High 48°, low 38°.
0.26Granby, Saturday, 31 October
Snow. High 45°, low 36°.
0Granby, Sunday, 1 November
Light rain. High 51°, low 28°.
0.32Granby, Monday, 2 November
Snow. High 46°, low 36°.
0.1Granby, Tuesday, 3 November
Snow. High 41°, low 32°.
0.04Granby, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06
Granby, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Granby, Friday, 6 November
Climate normal for this date — 60-year average.
0.02
Granby, 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.
0.05Granby, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Granby, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05Granby, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Granby, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Granby, Tuesday, 17 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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