Weather in Arvada, CO
Arvada, Sunday, 11 October, 01:22
Overcast. Feels like 61°. High 79°, low 59°.
Monthly outlook for Arvada, CO: average high 67.5°, average low 52.2°. That is 3.5° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 12 October (80.6°), the coolest 17 October (42.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 65.5° | 62.3° | +1.8° |
| 21 October – 30 October | 70.9° | 57.8° | +7.3° |
| 31 October – 9 November | at normal | 52.5° | — |
October records over 66 years
0
Arvada, Monday, 12 October
Clear. High 81°, low 56°.
0.03
Arvada, Tuesday, 13 October
Light rain. High 66°, low 50°.
0.34Arvada, Wednesday, 14 October
Rain. High 54°, low 45°.
0.35Arvada, Thursday, 15 October
Rain. High 49°, low 43°.
0.26Arvada, Friday, 16 October
Light rain. High 52°, low 45°.
0Arvada, Saturday, 17 October
Clear. High 63°, low 43°.
0Arvada, Sunday, 18 October
Clear. High 69°, low 51°.
0Arvada, Monday, 19 October
Clear. High 70°, low 54°.
0Arvada, Tuesday, 20 October
Clear. High 72°, low 55°.
0Arvada, Wednesday, 21 October
Clear. High 70°, low 55°.
0Arvada, Thursday, 22 October
Clear. High 72°, low 55°.
0Arvada, Friday, 23 October
Clear. High 71°, low 56°.
0Arvada, Saturday, 24 October
Clear. High 69°, low 55°.
0Arvada, Sunday, 25 October
Clear. High 72°, low 56°.
0
Arvada, Monday, 26 October
Mostly clear. High 71°, low 57°.
0.04
Arvada, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Arvada, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.08
Arvada, Thursday, 29 October
Climate normal for this date — 60-year average.
0.07Arvada, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Arvada, Saturday, 31 October
Climate normal for this date — 60-year average.
0.08Arvada, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Arvada, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Arvada, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Arvada, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Arvada, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Arvada, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Arvada, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Arvada, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Arvada, 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 Arvada, 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 Arvada, 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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