ZIP 94401 snow totals
Snowfall totals for ZIP 94401 (San Mateo, CA) will appear after the next snowfall update.
Storm total, last 72 hours
–in
Waiting for the next snowfall update
Updated Oct 24, 7:40 PM MT. Estimates for planning. Not certified for contract billing.
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Lawn timing
Soil temperature
61°F
Daily mean, 0–4 in deep, Oct 24
- Last 7 days
- -10.1°F
- Cooling
- Days until 55°F
- Starts Feb
- Spring countdown to the crabgrass threshold
Modeled from NOAA GFS at about 17 mi resolution; your yard can run warmer or cooler.
Crabgrass pre-emergent
Spring window opens when 0–4 in soil holds 50–55°F (MSU). Growing-degree-day tracking starts Feb 15, 2027.
Fall fertilizer
Soil 61°F. Apply after the last mowing while grass is still green; skip once soil drops below 40°F (Purdue).
Overseeding (cool-season)
Soil 61°F. Late summer to early fall is the best time to seed (Penn State).
Broadleaf weeds
Treat perennial broadleaf weeds in fall while air temperatures are above 50°F (Purdue).
Grub control
If grubs are damaging turf, curative treatment works while they feed near the surface, Aug–Oct (NC State).
Soil temperature drives these windows today. Growing-degree-day tracking joins it February 15, 2027. How we set them
Guides for San Mateo
Snow-day gear
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Nearest snow-reporting stations
- SAN MATEO 0.1 S: 1.1 mi
- BURLINGAME 1.5 SE: 1.2 mi
- BURLINGAME 0.8 WSW: 3.2 mi
FAQ
How much snow did ZIP 94401 get?
Snowfall totals for ZIP 94401 (San Mateo, CA) will appear after the next snowfall update.
What is the soil temperature in ZIP 94401, and is it time for pre-emergent?
The 0–4 inch soil around ZIP 94401 averages 61°F today (NOAA GFS model). Crabgrass pre-emergent goes down in spring when soil holds 50–55°F, before four to five straight days at 55°F (Michigan State University).
Can I use these totals to bill snow removal?
No. Estimates for planning. Not certified for contract billing. Grid estimates can differ from a specific lot, so contracts should name a measurement method, such as a specific weather station or an on-site snow board.