Frostline.info

Frost line depth in Dyer, NV 89010

Frost can reach about 23 inches deep in typical soil in Dyer, NV 89010 (20″ in clay to 29″ in sand). Local codes in climates like this commonly set footing depth at 18 to 30 inches.

Source: NOAA 100-year air freezing index (1951–80 station records) · Last reviewed

Moderate frost
Estimated frost depth
23″
typical silt/loam soil
Typical code footing depth
18–30″
rule of thumb for this climate
Design freezing index
539
°F-days, 100-year winter
Mean annual temp
51.4°F
nearest stations
23″ 0″12″24″36″48″ ground frozen
Est. frost (typical soil) Typical code footing depth Clay–sand range

Frost depth by soil type

Soil typeEst. frost depth
Sand / gravel (drains well)29″
Silt / loam (typical yard soil)23″
Clay (holds water)20″

Estimates use the modified Stefan equation with a turf / light-snow surface. Bare, plowed or paved ground freezes deeper; deep snow cover keeps frost shallower. How we calculate this.

Verify before you dig. These are climate-based estimates. The legally required frost depth is the figure your building department publishes in its IRC Table R301.2 (climatic and geographic design criteria). Call the Esmeralda County building or permitting office in Nevada and call 811 before digging.

What this means for your project in Dyer

Deck footings & piers

Footings must bear below the frost line and at least 12″ below undisturbed ground. For planning in this area, budget for holes around 30″ deep until your permit office confirms the exact figure.

Fence posts

Set posts at least one-third of their above-ground height. Where frost heave is a problem, carry concrete footings below the frost line (about 23″ here in typical soil) and bell or taper the bottom.

Water & irrigation lines

Bury supply lines below the frost depth. Your water utility or plumbing code sets the minimum cover; add a margin below the estimate above for unusually cold winters.

Slabs & frost-protected foundations

Frost-protected shallow foundations (IRC R403.3) use the 100-year air freezing index — 539 °F-days here — to size perimeter insulation, letting footings sit shallower than the frost line.

Weather data behind this estimate

NOAA weather stationDistance100-yr AFI
Dyer 4 Se, NV9.7 mi577
Bishop, CA31.9 mi250
Mina, NV43.6 mi307

89010 ranks #1 of 2 ZIP codes in Esmeralda County for frost depth (1 = deepest).

Nearby ZIP codes

All of Esmeralda County →

Common questions

How deep is the frost line in Dyer, NV?

Based on NOAA's 100-year air freezing index of 539 °F-days for 89010, frost can reach about 23 inches in typical soil, 20 inches in clay and 29 inches in sand or gravel.

How deep do deck footings need to be in 89010?

Footings must sit below the local frost line and at least 12 inches below undisturbed soil. In climates like Dyer, codes commonly set the depth at 18 to 30 inches. The Esmeralda County building department sets the exact requirement.

Why does soil type change the frost depth?

Wet clay holds a lot of water, and freezing that water releases heat that slows the frost. Dry sand and gravel hold little water and conduct cold faster, so frost goes deeper.

Where does this data come from?

Freezing-index values come from NOAA National Climatic Data Center station records (1951–80), the same data behind the air-freezing-index map in the International Residential Code. We average the three nearest stations, weighted by distance.