Weather in Granby, CO
Granby, Sunday, 11 October, 18:50
Overcast. Feels like 65°. High 70°, low 50°.
Monthly outlook for Granby, CO: average high 53.8°, average low 32.6°. That is 1.8° above the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 11 October (70.3°), the coolest 25 October (15.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 57.6° | 51.9° | +3.2° |
| 21 October – 30 October | 47.3° | 47° | +0.2° |
| 31 October – 9 November | at normal | 41.7° | — |
October records over 66 years
0.02
Granby, Monday, 12 October
Light rain. High 69°, low 51°.
0.19Granby, Tuesday, 13 October
Rain. High 61°, low 41°.
0.24
Granby, Wednesday, 14 October
Snow. High 53°, low 37°.
0.25Granby, Thursday, 15 October
Snow. High 46°, low 33°.
0
Granby, Friday, 16 October
Clear. High 56°, low 26°.
0Granby, Saturday, 17 October
Clear. High 52°, low 31°.
0Granby, Sunday, 18 October
Clear. High 55°, low 28°.
0Granby, Monday, 19 October
Clear. High 57°, low 31°.
0.11Granby, Tuesday, 20 October
Light rain. High 58°, low 34°.
0.02Granby, Wednesday, 21 October
Snow. High 57°, low 37°.
0.01Granby, Thursday, 22 October
Light rain. High 60°, low 35°.
0.3Granby, Friday, 23 October
Snow. High 38°, low 30°.
0.01Granby, Saturday, 24 October
Light snow. High 40°, low 21°.
0
Granby, Sunday, 25 October
Mostly clear. High 43°, low 16°.
0Granby, Monday, 26 October
Clear. High 46°, low 22°.
0.04
Granby, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Granby, 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.
0.02Granby, 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.
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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