Idaho Falls Fanning Fld, ID Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Idaho Falls Fanning Fld's primary NOAA station, IDAHO FALLS FANNING FLD.
The climate verdict for Idaho Falls Fanning Fld
Dryness leads the climate profile for Idaho Falls Fanning Fld, Idaho, with 10.1 inches of precipitation a year. NOAA records an annual average of 44°F. At 40/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 6% of scores.
- 44°F
- yearly average temperature, NOAA normal
- 40/100
- comfort score, above 6% of station-mapped location scores
- 10.1"
- annual precipitation
- 120 days
- frost-free days per growing season
Idaho Falls Fanning Fld: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00024145 · Idaho Falls Fanning Fld, ID 44°F mean · 10.1" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 44°F
- RANK-COOL #1,098
- PHOTO-FINISH ≈ St Ignace Macki…
- PRCP-ARID 10.1"
- SWING-WIDE 48°F
- COMF-LOW 40/100
- LOAD-HEAT 7,792 HDD
- STN-1 USW00024145
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: St Ignace Mackinac BR, MI (+ 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.
- Idaho Falls Fan… (this station) 44°F
- Cold Valier, MT 44°F
- Hot Pineview Dam, UT 44°F
- Near St Ignace Macki…, MI 44°F
- Near Shonkin, MT 44°F
Climate Living Index · Idaho Falls Fanning Fld
Idaho Falls Fanning Fld: 15/100 · grade F
Idaho Falls Fanning Fld publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Idaho Falls Fanning Fld, not an official NOAA rating. Rankings still use Comfort Score 40/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 193 calendar days | 18/100 · F |
| Annual temperature balance | 44.2°F · 23.3° from 67.5°F | 17/100 · F |
| Precipitation balance | 10.1 in · 24.9 from 35 in | 12/100 · F |
| Frost-free season | 120 days/year | 7/100 · F |
Idaho Falls Fanning Fld · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Idaho Falls Fanning Fld'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
- 68.0°F
- Coldest month
- 20.4°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 Idaho Falls Fanning Fld sits across the climate record
Three NOAA fields for Idaho Falls Fanning Fld's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 84%
- Among 6,861 stations, Idaho Falls Fanning Fld sits in the cooler third of annual means.
- Annual precipitation
- Drier than 94%
- Idaho Falls Fanning Fld's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 71%
- Warmest-to-coldest month gap for Idaho Falls Fanning Fld is large versus 6,861 complete station-years.
How Idaho Falls Fanning Fld compares across U.S. station-mapped locations
Idaho Falls Fanning Fld's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
40 6th percentile score exceeds 6% 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
Idaho Falls Fanning Fld's measured station temperature trend
MethodologyAcross 68 complete annual observations from 1949 to 2025, IDAHO FALLS FANNING FLD warmed at a fitted rate of 0.13°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Idaho Falls Fanning Fld primary station fitted change +0.13 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 29°F (-2°C) | 12°F (-11°C) | 20°F (-6°C) | 0.7" | 30.4 | 0.0 |
| February | 34°F (1°C) | 16°F (-9°C) | 25°F (-4°C) | 0.6" | 26.4 | 0.0 |
| March | 47°F (8°C) | 25°F (-4°C) | 36°F (2°C) | 0.8" | 25.1 | 0.0 |
| April | 58°F (14°C) | 31°F (0°C) | 44°F (7°C) | 1.0" | 16.6 | 0.0 |
| May | 67°F (20°C) | 38°F (4°C) | 53°F (12°C) | 1.6" | 5.8 | 0.2 |
| June | 76°F (25°C) | 45°F (7°C) | 60°F (16°C) | 1.1" | 0.5 | 2.3 |
| July | 87°F (30°C) | 49°F (10°C) | 68°F (20°C) | 0.5" | 0.0 | 12.7 |
| August | 86°F (30°C) | 48°F (9°C) | 67°F (19°C) | 0.6" | 0.2 | 10.1 |
| September | 75°F (24°C) | 41°F (5°C) | 58°F (14°C) | 1.0" | 3.2 | 1.2 |
| October | 59°F (15°C) | 31°F (-1°C) | 45°F (7°C) | 0.9" | 17.2 | 0.0 |
| November | 43°F (6°C) | 22°F (-6°C) | 32°F (0°C) | 0.7" | 26.6 | 0.0 |
| December | 30°F (-1°C) | 13°F (-10°C) | 22°F (-6°C) | 0.8" | 30.2 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 89°F around July 26, short of 90°F on every date, while 193 dates carry a normal low at or below freezing, the coldest 11°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into April 21, then returns to freezing around October 12, 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 14, when 30% of years recorded at least a hundredth of an inch. The driest is July 12 at 13%. Summed across the calendar, that is about 84 wet dates a year.
The widest day
July 31 carries the biggest normal gap between afternoon and dawn, 39°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Idaho Falls Fanning Fld.
Where Idaho Falls Fanning Fld Stands Nationally
Aridity defines the water calendar: about 10 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 39°F, sharper than nine in ten ranked stations see.
Idaho Falls Fanning Fld earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
8.2 days with precipitation
7.0 days with precipitation
7.6 days with precipitation
8.7 days with precipitation
9.0 days with precipitation
6.8 days with precipitation
3.8 days with precipitation
4.9 days with precipitation
5.1 days with precipitation
6.5 days with precipitation
7.2 days with precipitation
9.5 days with precipitation
Idaho Falls Fanning Fld spreads its precipitation across the year
Neither half of the year dominates here: June through August take 21% of the annual total and December through February 20%, with neither reaching the 35% that would mark a distinct wet season. Idaho Falls Fanning Fld has no dry season to plan around, though it does carry a wide 47.6°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 1.6" and July 0.5". The three wettest months together take 37% 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.
Idaho Falls Fanning Fld is dry, and what does fall arrives gently
Only about 84 days a year record measurable precipitation here, 23% of the calendar, and they carry 10.1" 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 10 wet days; the driest is July at about 4.
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.
Frost Dates & Growing Season
First Fall Freeze
September 20
50% probability date
Last Spring Freeze
May 23
50% probability date
Growing Season
120 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,792
Higher = more heating needed
Cooling Degree Days
249
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ID closest to Idaho Falls Fanning Fld 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 (44°F here).
- Andover, SD 44°F · 0.0°F off
- Greer, AZ 44°F · 0.0°F off
- Jordan, MT 44°F · 0.0°F off
- Jordan, MN 44°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (10.1" here), excluding temperature-peer places.
- Dillon, MT 10.1" · 0.0" off
- Koosharem, UT 10.1" · 0.0" off
- Shell, WY 10.1" · 0.0" off
- Santa Teresa, NM 10.1" · 0.0" off
Scarce-water calendar
Where Idaho Falls Fanning Fld's limited precipitation lands
heating led · dry · mid swing
Idaho Falls Fanning Fld's energy balance leans toward cold weather: 7,792 annual heating degree days against 249 for cooling. Its 47.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 120 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.
July and January mark the typical warm and cold ends of the calendar in Idaho Falls Fanning Fld's middle-range seasonal profile. The measured spread is 47.6°F. The annual average is 44°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Idaho Falls Fanning Fld's cold-season load does not imply a wet climate. Annual precipitation is 10.1 inches, which places the station in PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
Idaho Falls Fanning Fld wettest normal
May
May concentrates the scarce annual total (10.1 inches).
Idaho Falls Fanning Fld driest normal
July
July is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Idaho Falls Fanning Fld's climate
How dry is Idaho Falls Fanning Fld? ▼
How cold does Idaho Falls Fanning Fld get in winter? ▼
How much energy does heating and cooling require in Idaho Falls Fanning Fld? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Idaho Falls Fanning Fld's primary station: IDAHO FALLS FANNING FLD (USW00024145). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Idaho Falls Fanning Fld; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Idaho Falls Fanning Fld 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.