How much snow does Macomb County actually get?
The seasonal total is the number everyone quotes and the wrong number for deciding anything.
Why totals mislead
Snow removal is billed per event, not per inch. That single fact makes the seasonal total almost useless for budgeting.
Consider two winters with identical 44-inch totals:
| Winter | How it arrived | Visits at a 2-inch trigger | Cost at $75/visit |
|---|---|---|---|
| A | Four large storms of 11 inches | 4 | $300 |
| B | Twenty-two events of 2 inches | 22 | $1,650 |
| Typical | Mixed — a few large, many small | ~10 | $750 |
Same 44 inches, more than five times the cost difference. This is why "how much snow do we get" is the wrong question and "how many events" is the right one.
The official normals, month by month
The National Weather Service's 1991–2020 climate normals for Detroit Metro Airport, the official reference station for Southeast Michigan, put the seasonal total at 45.0 inches:
| Month | Normal snowfall |
|---|---|
| November | 1.9 in |
| December | 8.9 in |
| January | 14.0 in |
| February | 12.5 in |
| March | 6.2 in |
| April | 1.5 in |
| Season | 45.0 in |
Source: NWS Detroit/Pontiac, 1991–2020 normals. The 1981–2010 normal was 42.5 inches.
What the county actually experiences
Southeast Michigan sits in a band that gets consistent, unremarkable winters — nothing like the lake-effect belts downwind of Lake Michigan or Lake Erie, but reliably snowy from late November through March.
Lake St. Clair is shallow and small relative to the Great Lakes, so it does not generate heavy lake-effect snow. What it does do is moderate temperature, and that changes the character of events near the water: Chesterfield, New Baltimore, Harrison Township and St. Clair Shores see proportionally more wet snow and freezing rain, while Bruce Township and Armada Township at higher elevation and further inland hold dry snow longer.
Within-county variation is real
The county runs from 8 Mile Road to past 34 Mile. That is a meaningful distance, and a single system can drop noticeably different amounts at the two ends. The higher ground in the northwest — Bruce Township contains the county's highest point — holds snow when the lakeshore has already turned to slush.
Operationally that means dispatch decisions are made from observed conditions across the route rather than a single measurement, and it is why a neighbor five miles away can have a different experience of the same storm.
What to plan for
- Budget for a normal winter, not a forecast. Long-range seasonal outlooks are not accurate enough to buy against.
- Think in events, not inches. Ask any contractor how many visits they averaged on comparable properties last season.
- Understand the variance. The spread between a light and heavy winter is the single largest uncertainty in the whole decision, and it is exactly what a seasonal contract exists to remove.
- Expect shoulder events. Snow in November and April happens here. Ask what a contract does with those dates.
How this maps onto what you pay
At $0.0715 per square foot with a $75 minimum, most one- and two-car driveways in this county pay $75 a visit. Ten visits, about a typical winter at a 2-inch trigger, is roughly $750. Price your own property on the calculator, then multiply by the event count you think is realistic — that is a far better budget than any seasonal forecast will give you.
The contract comparison is at seasonal vs per-push.
Questions people actually ask
How much snow does Macomb County get?
About 45 inches in a typical season. The National Weather Service’s 1991–2020 normal at Detroit Metro Airport is 45.0 inches, up from 42.5 inches for 1981–2010. The county spans enough distance that the north and the lakeshore can differ noticeably within one event.
Why is the seasonal total the wrong number?
Because you are billed per event, not per inch. One 12-inch storm is a single visit. Six 2-inch events are six visits at six times the cost, from half the total snowfall.
How many plowable events are there per season?
About 10 at a 2-inch trigger in a typical winter. Counting from NOAA’s daily records for Detroit Metro Airport, the middle half of the last 30 winters ran 7 to 12, the lightest 5 and the heaviest 21. That variance is precisely what a seasonal contract transfers from you to the contractor.
Does the lake change things?
Lake St. Clair is small compared with the Great Lakes, so it does not produce heavy lake-effect the way Lake Michigan does downwind. It does moderate temperature, which shifts more events toward wet snow and freezing rain near Anchor Bay and the shoreline.
Are seasonal snowfall forecasts reliable?
Not reliably enough to base a purchase on. Anyone selling you a contract on the strength of a long-range seasonal outlook is selling confidence they do not have. Plan for a normal winter.
When does snow season actually start here?
Measurable snow can arrive in November and persist into April. We staff November 15 through April 15, which covers the overwhelming majority of events, and handle anything outside that window case by case rather than pretending it away.
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Get the per-visit number in three taps, then multiply by the event count you think is realistic.