US5.com
  1. Home
  2. States
  3. Utah
  4. ZIP 84331
  5. Climate & Environment
Portage town, UT

ZIP 84331 — Climate & Environment

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Working ClassLow Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 84331

Disaster Risk (FEMA NRI)

County-linked natural hazard risk from FEMA National Risk Index — useful for comparing insurance and disaster exposure.

FEMA’s National Risk Index rates natural-hazard risk for Portage town, UT as Relatively Low (composite score 55.9), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (95.4) and flood (19.5). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Overall rating
Relatively Low
Risk index
55.9
Flood risk
19.5
Wildfire risk
95.4
Earthquake risk
93.3
Tornado risk
12.6
Winter weather risk
72.7
Hail risk
7.8
Air Quality (EPA AQI)

County-level annual air quality from EPA. Good days = healthy to breathe; unhealthy = sensitive groups or worse.

48
Median AQI
60.0%
Good Days

Air quality healthy to breathe

0.3%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 84331

Climate normals for Portage town, UT show little to no average snow and around 16.9 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively Low) when evaluating long-term housing and insurance exposure.

7-day weather forecast

Loading live forecast…

Sunrise, sunset & moon

Loading outdoor timing for Portage town, UT (ZIP 84331)…

Monthly Temperature

30-year climate normals (avg. monthly temperature)

Climate Data
Hardiness Zone
6a
Annual Snow Days
0
Annual Precipitation
16.91 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone6a
Annual precip (in)16.91
Snow days0
Broadband access93.1%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index55.9
Flood risk (NRI)19.5
Wildfire risk (NRI)95.4
IRS net migration18
Median AQI48
Good AQI days60.0%