Weather in Granby, CO
Granby, Monday, 12 October, 05:29
Partly cloudy. Feels like 44°. High 68°, low 44°.
Monthly outlook for Granby, CO: average high 55.9°, average low 35.9°. That is 3.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 12 October (67.8°), the coolest 18 October (27.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 56.3° | 51.5° | +2.6° |
| 22 October – 31 October | 55.3° | 46.2° | +5.1° |
| 1 November – 10 November | at normal | 41.5° | — |
October records over 66 years
0.54
Granby, Tuesday, 13 October
Heavy rain. High 56°, low 43°.
0.04Granby, Wednesday, 14 October
Rain. High 55°, low 42°.
0.67
Granby, Thursday, 15 October
Snow. High 45°, low 34°.
0
Granby, Friday, 16 October
Clear. High 55°, low 31°.
0
Granby, Saturday, 17 October
Overcast. High 57°, low 35°.
0Granby, Sunday, 18 October
Clear. High 52°, low 27°.
0Granby, Monday, 19 October
Overcast. High 56°, low 32°.
0Granby, Tuesday, 20 October
Clear. High 62°, low 35°.
0Granby, Wednesday, 21 October
Overcast. High 58°, low 38°.
0Granby, Thursday, 22 October
Overcast. High 64°, low 38°.
0.01Granby, Friday, 23 October
Light rain. High 56°, low 41°.
0.2Granby, Saturday, 24 October
Snow. High 44°, low 36°.
0.04Granby, Sunday, 25 October
Snow. High 55°, low 33°.
0Granby, Monday, 26 October
Clear. High 56°, low 33°.
0Granby, Tuesday, 27 October
Clear. High 57°, low 33°.
0.06
Granby, Wednesday, 28 October
Climate normal for this date — 60-year average.
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.
0.02
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.
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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