Fort Hall, ID Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Fort Hall's primary NOAA station, FT HALL 1 NNE.
The climate verdict for Fort Hall
Dryness leads the climate profile for Fort Hall, Idaho, with 10.5 inches of precipitation a year. NOAA records an annual average of 45°F. At 49/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 18% of scores.
- 45°F
- annual average temperature (NOAA normal)
- 49/100
- comfort score, above 18% of station-mapped location scores
- 10.5"
- annual precipitation · 28" snow
- 123 days
- growing season, frost-free days
Fort Hall: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00103297 · Fort Hall, ID 45°F mean · 10.5" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 45°F
- RANK-COOL #1,372
- PHOTO-FINISH ≈ Lamoille Yost
- PRCP-ARID 10.5"
- SWING-MID 45°F
- COMF-LOW 49/100
- LOAD-HEAT 7,403 HDD
- STN-1 USC00103297
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Lamoille Yost, NV (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every ID station list.
- Hot W Rockport, ME 46°F
- Near Platte Clove, NY 46°F
- Fort Hall (this station) 45°F
- Near Lamoille Yost, NV 45°F
- Near Livingston Miss…, MT 45°F
Climate Living Index · Fort Hall
Fort Hall: 20/100 · grade F
Fort Hall publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Fort Hall, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 28.1 inches/year | 40/100 · D |
| Annual temperature balance | 45.4°F · 22.1° from 67.5°F | 21/100 · F |
| Normal heat + freeze calendar | 193 calendar days | 18/100 · F |
| Precipitation balance | 10.5 in · 24.5 from 35 in | 14/100 · F |
| Frost-free season | 123 days/year | 8/100 · F |
Fort Hall · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Fort Hall's normals sit in a dry climate class: BSk
Precipitation is low relative to temperature but above true desert thresholds: cold semi-arid steppe (BSk). Class BSk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold semi-arid steppe.
- Köppen code
- BSk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 68.5°F
- Coldest month
- 23.8°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Fort Hall sits across the climate record
Three NOAA fields for Fort Hall's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 80%
- Among 6,861 stations, Fort Hall sits in the cooler third of annual means.
- Annual precipitation
- Drier than 93%
- Fort Hall's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 57th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Fort Hall compares across U.S. station-mapped locations
Fort Hall's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 18th percentile score exceeds 18% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Fort Hall's measured station temperature trend
MethodologyAcross 45 complete annual observations from 1949 to 2025, FT HALL 1 NNE warmed at a fitted rate of 0.24°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Fort Hall primary station fitted change +0.25 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 33°F (0°C) | 15°F (-9°C) | 24°F (-5°C) | 0.9" | 6.4" | 30.0 | 0.0 |
| February | 38°F (3°C) | 18°F (-8°C) | 28°F (-2°C) | 0.8" | 5.7" | 26.3 | 0.0 |
| March | 50°F (10°C) | 26°F (-4°C) | 38°F (3°C) | 1.0" | 3.0" | 26.4 | 0.0 |
| April | 58°F (15°C) | 31°F (-1°C) | 45°F (7°C) | 1.0" | 1.3" | 18.8 | 0.0 |
| May | 67°F (20°C) | 39°F (4°C) | 53°F (12°C) | 1.4" | 0.3" | 5.7 | 0.1 |
| June | 76°F (24°C) | 45°F (7°C) | 61°F (16°C) | 0.9" | 0.0" | 0.7 | 1.7 |
| July | 86°F (30°C) | 51°F (10°C) | 69°F (20°C) | 0.4" | 0.0" | 0.0 | 11.1 |
| August | 86°F (30°C) | 49°F (9°C) | 67°F (20°C) | 0.5" | 0.0" | 0.4 | 11.0 |
| September | 76°F (24°C) | 41°F (5°C) | 58°F (15°C) | 0.8" | 0.0" | 3.8 | 1.9 |
| October | 60°F (16°C) | 31°F (0°C) | 46°F (8°C) | 0.9" | 0.9" | 17.5 | 0.0 |
| November | 45°F (7°C) | 22°F (-5°C) | 33°F (1°C) | 0.8" | 3.0" | 26.5 | 0.0 |
| December | 33°F (0°C) | 15°F (-9°C) | 24°F (-5°C) | 1.0" | 7.5" | 29.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 89°F around July 27, short of 90°F on every date, while 193 dates carry a normal low at or below freezing, the coldest 14°F near December 24.
The freezing stretch
The normal low stays at or below 32°F into April 23, then returns to freezing around October 14, covering 193 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is December 27, when 34% of years recorded at least a hundredth of an inch. The driest is July 13 at 11%. Summed across the calendar, that is about 88 wet dates a year.
The widest day
August 6 carries the biggest normal gap between afternoon and dawn, 37°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Fort Hall.
Where Fort Hall Stands Nationally
Aridity defines the water calendar: about 11 inches in a normal year lands this among the driest tenth of ranked stations.
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 37°F, sharper than nine in ten ranked stations see.
Fort Hall earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 6.4"
10.1 days with precipitation
Snow: 5.7"
8.2 days with precipitation
Snow: 3.0"
8.2 days with precipitation
Snow: 1.3"
8.5 days with precipitation
Snow: 0.3"
9.4 days with precipitation
6.4 days with precipitation
3.3 days with precipitation
3.9 days with precipitation
5.2 days with precipitation
Snow: 0.9"
6.7 days with precipitation
Snow: 3.0"
7.5 days with precipitation
Snow: 7.5"
10.7 days with precipitation
Fort Hall spreads its precipitation across the year
Neither half of the year dominates here: June through August take 18% of the annual total and December through February 25%, with neither reaching the 35% that would mark a distinct wet season. Fort Hall has no dry season to plan around, though it does carry a 44.7°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 1.4" and July 0.4". The three wettest months together take 33% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Fort Hall is dry, and what does fall arrives gently
Only about 88 days a year record measurable precipitation here, 24% of the calendar, and they carry 10.5" between them. At roughly 0.12 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is December at about 11 wet days; the driest is July at about 3.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Winter brings real snow to Fort Hall
Fort Hall averages 28.1 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 25 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 28.1 inches of depth.
- Days recording measurable snow: about 25 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 27% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
September 20
50% probability date
Last Spring Freeze
May 20
50% probability date
Growing Season
123 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,403
Higher = more heating needed
Cooling Degree Days
285
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ID closest to Fort Hall on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (45°F here).
- Alberton, MT 45°F · 0.0°F off
- Augusta, MT 45°F · 0.0°F off
- Beloit, WI 45°F · 0.0°F off
- Deadwood, SD 45°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (10.5" here), excluding temperature-peer places.
- Palisade, CO 10.5" · 0.0" off
- Merced, CA 10.4" · 0.0" off
- Rio Rancho, NM 10.4" · 0.0" off
- Townsend, MT 10.6" · 0.1" off
Snow and freeze rhythm
When cold and snow define Fort Hall
heating led · dry · mid swing
Fort Hall's energy balance leans toward cold weather: 7,403 annual heating degree days against 285 for cooling. Its 44.7°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 123 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. Fort Hall coldest normal
January
Averaging 24°F (-5°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Fort Hall typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Fort Hall snow peak
December
Fort Hall averages 28.1 inches of snow a year, with December the snowiest month on the normals.
Questions about Fort Hall's climate
How much snow does Fort Hall get? ▼
How cold does Fort Hall get in winter? ▼
How much energy does heating and cooling require in Fort Hall? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Fort Hall's primary station: FT HALL 1 NNE (USC00103297). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 1628360), not an incorporated municipality. Match rule for Fort Hall: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Fort Hall comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.