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Grassflat CDP, PA

ZIP 16839 — Climate & Environment

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

Middle ClassLow Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 16839

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 Grassflat CDP, PA as Relatively Low (composite score 67.1), which is near the middle of the national distribution. The strongest component scores on US5 are flood (80.6) and hurricane (71.0). 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
67.1
Flood risk
80.6
Wildfire risk
34.3
Hurricane risk
71.0
Earthquake risk
43.4
Tornado risk
40.7
Winter weather risk
90.0
Hail risk
18.3

Climate & Weather in ZIP Code 16839

Climate normals for Grassflat CDP, PA show little to no average snow and around 44.5 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

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Sunrise, sunset & moon

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Monthly Temperature

30-year climate normals (avg. monthly temperature)

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

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone6a
Annual precip (in)44.47
Snow days0
Broadband access90.1%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index67.1
Flood risk (NRI)80.6
Wildfire risk (NRI)34.3
Hurricane risk (NRI)71.0
IRS net migration20