Salt Lake City daily weather (Open-Meteo historical archive) against the client's own job and lead volume by week since 2021. An observation: coating work is seasonal for many reasons (holidays, home-show calendar, budgets, ad spend), and warm weeks are also spring and summer weeks.
| Mean temp | Weeks | Jobs / week | Leads / week |
|---|---|---|---|
| Under 35°F | 62 | 3.4 | 16.6 |
| 35–49°F | 75 | 5.3 | 16.0 |
| 50–64°F | 58 | 5.2 | 18.4 |
| 65–79°F | 66 | 4.7 | 19.2 |
| 80°F+ | 36 | 4.1 | 16.9 |
Source: archive-api.open-meteo.com daily temperature, precipitation and snowfall for Salt Lake City, loaded through Oct 12, 2026. Definitions in METRICS.md → Weather.
r runs from −1 to +1: near 0 means the two move independently week to week; the sign says whether they move together. Weather here stands in for the season as much as for the weather itself, and jobs are recorded by converted date rather than the day the crew worked, so read every number as a pattern worth knowing, not a cause.