Weather in Granby, CO
Granby, Saturday, 17 October, 07:15
Clear. Feels like 17°. High 64°, low 23°.
Monthly outlook for Granby, CO: average high 53.2°, average low 29.6°. That is 3.2° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 21 October (64.1°), the coolest 1 November (2.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 58.3° | 49.4° | +4.9° |
| 27 October – 5 November | 44.6° | 43.1° | +0.8° |
| 6 November – 15 November | at normal | 39.6° | — |
October records over 66 years
0
Granby, Sunday, 18 October
Overcast. High 63°, low 33°.
0.12
Granby, Monday, 19 October
Rain. High 59°, low 40°.
0.01Granby, Tuesday, 20 October
Light rain. High 58°, low 37°.
0
Granby, Wednesday, 21 October
Mostly clear. High 64°, low 38°.
0.04Granby, Thursday, 22 October
Light rain. High 61°, low 41°.
0.06Granby, Friday, 23 October
Light rain. High 54°, low 37°.
0.06
Granby, Saturday, 24 October
Snow. High 46°, low 32°.
0Granby, Sunday, 25 October
Overcast. High 61°, low 30°.
0Granby, Monday, 26 October
Overcast. High 53°, low 32°.
0.03Granby, Tuesday, 27 October
Snow. High 50°, low 32°.
0.02Granby, Wednesday, 28 October
Light snow. High 45°, low 30°.
0
Granby, Thursday, 29 October
Partly cloudy. High 55°, low 27°.
0.04Granby, Friday, 30 October
Light snow. High 53°, low 31°.
0.98Granby, Saturday, 31 October
Snow. High 35°, low 8°.
0Granby, Sunday, 1 November
Overcast. High 29°, low 2°.
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.
0.06
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.
0.02Granby, 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.
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.
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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