Fenn Ranger Station, ID Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Fenn Ranger Station's primary NOAA station, FENN RS.
The climate verdict for Fenn Ranger Station
Fenn Ranger Station, Idaho has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 50°F. Its climate comfort score of 59/100 (moderate) lands mid-pack nationally, exceeding 37% of station-mapped location scores.
- 50°F
- average temperature, NOAA 1991-2020 normal
- 59/100
- comfort score, above 37% of station-mapped location scores
- 40.6"
- annual precipitation · 43" snow
- 177 days
- growing season, frost-free days
Fenn Ranger Station: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00103143 · Fenn Ranger Station, ID 50°F mean · 40.6" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 50°F
- RANK-COOL #2,676
- PHOTO-FINISH ≈ Sunnyside
- PRCP-MID 40.6"
- SWING-MID 41°F
- COMF-MID 59/100
- LOAD-HEAT 5,979 HDD
- STN-1 USC00103143
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Sunnyside, WA (+ 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.
- Fenn Ranger Sta… (this station) 50°F
- Cold Spokane Felts F…, WA 50°F
- Hot Circleville, UT 50°F
- Near Sunnyside, WA 50°F
- Near Buckeye, WV 50°F
Climate Living Index · Fenn Ranger Station
Fenn Ranger Station: 45/100 · grade D
Fenn Ranger Station publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Fenn Ranger Station, not an official NOAA rating. Rankings still use Comfort Score 59/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 40.6 in · 5.6 from 35 in | 80/100 · B |
| Frost-free season | 177 days/year | 48/100 · D |
| Annual temperature balance | 49.9°F · 17.6° from 67.5°F | 40/100 · D |
| Normal heat + freeze calendar | 166 calendar days | 35/100 · F |
| Snowfall burden | 43.1 inches/year | 25/100 · F |
Fenn Ranger Station · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Fenn Ranger Station is a continental Köppen climate: Dsa
Coldest-month mean 31.2°F and warmest-month mean 71.7°F place this station in continental, dry-summer, hot summer climates (Dsa). Class Dsa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, hot summer.
- Köppen code
- Dsa
- Group
- Continental
- Warmest month
- 71.7°F
- Coldest month
- 31.2°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 Fenn Ranger Station sits across the climate record
Three NOAA fields for Fenn Ranger Station's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 39th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 59th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 38th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Fenn Ranger Station compares across U.S. station-mapped locations
Fenn Ranger Station's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 37th percentile score exceeds 37% 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%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 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
Fenn Ranger Station's measured station temperature trend
MethodologyAcross 61 complete annual observations from 1909 to 2018, FENN RS warmed at a fitted rate of 0.07°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Fenn Ranger Station primary station fitted change +0.07 °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 | 37°F (3°C) | 26°F (-3°C) | 31°F (0°C) | 4.9" | 13.3" | 27.5 | 0.0 |
| February | 43°F (6°C) | 28°F (-2°C) | 35°F (2°C) | 3.7" | 6.8" | 23.4 | 0.0 |
| March | 52°F (11°C) | 31°F (0°C) | 42°F (5°C) | 4.3" | 2.7" | 18.1 | 0.0 |
| April | 62°F (16°C) | 36°F (2°C) | 49°F (9°C) | 4.0" | 0.3" | 6.8 | 0.0 |
| May | 72°F (22°C) | 42°F (6°C) | 57°F (14°C) | 3.6" | 0.0" | 1.3 | 1.6 |
| June | 78°F (26°C) | 48°F (9°C) | 63°F (17°C) | 3.7" | 0.0" | 0.0 | 4.1 |
| July | 90°F (32°C) | 53°F (12°C) | 72°F (22°C) | 0.9" | 0.0" | 0.0 | 17.8 |
| August | 90°F (32°C) | 52°F (11°C) | 71°F (21°C) | 0.9" | 0.0" | 0.0 | 16.7 |
| September | 78°F (25°C) | 45°F (7°C) | 61°F (16°C) | 1.6" | 0.0" | 0.1 | 2.3 |
| October | 61°F (16°C) | 38°F (3°C) | 49°F (10°C) | 3.1" | 0.0" | 4.9 | 0.0 |
| November | 45°F (7°C) | 31°F (0°C) | 38°F (3°C) | 5.2" | 3.0" | 15.3 | 0.0 |
| December | 36°F (2°C) | 27°F (-3°C) | 31°F (0°C) | 4.7" | 17.0" | 26.9 | 0.0 |
The year, day by day
Fenn Ranger Station works both ends of the calendar. Normal highs climb to 94°F by July 28 and hold at or above 90°F on 34 dates, then normal lows drop to freezing or below on 132 dates, bottoming at 26°F around January 1.
When the heat sits
Normal highs reach 90°F from July 14 through August 16, covering 34 dates. The broader mild season, normal highs of 70°F or more, runs May 8 to September 30.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into March 21, then returns to freezing around November 11, covering 132 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 April 4, when 59% of years recorded at least a hundredth of an inch. The driest is August 4 at 15%. Summed across the calendar, that is about 162 wet dates a year.
The widest day
July 30 carries the biggest normal gap between afternoon and dawn, 40°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Fenn Ranger Station.
Where Fenn Ranger Station Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 40°F, sharper than nine in ten ranked stations see.
Fenn Ranger Station earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 13.3"
17.2 days with precipitation
Snow: 6.8"
16.1 days with precipitation
Snow: 2.7"
17.6 days with precipitation
Snow: 0.3"
17.3 days with precipitation
14.5 days with precipitation
12.8 days with precipitation
5.2 days with precipitation
4.9 days with precipitation
6.4 days with precipitation
13.4 days with precipitation
Snow: 3.0"
16.9 days with precipitation
Snow: 17.0"
18.5 days with precipitation
Fenn Ranger Station spreads its precipitation across the year
Neither half of the year dominates here: June through August take 13% of the annual total and December through February 33%, with neither reaching the 35% that would mark a distinct wet season. Fenn Ranger Station has no dry season to plan around, though it does carry a 40.5°F seasonal spread.
The gap between the wettest and driest month still matters: November averages 5.2" and August 0.9". The three wettest months together take 36% 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.
How Fenn Ranger Station's precipitation splits across the calendar
About 161 days a year record measurable precipitation here, carrying 40.6" between them, or roughly 0.25 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Fenn Ranger Station
Fenn Ranger Station averages 43.1 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 21 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: 43.1 inches of depth.
- Days recording measurable snow: about 21 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 11% 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
October 20
50% probability date
Last Spring Freeze
April 26
50% probability date
Growing Season
177 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,979
Higher = more heating needed
Cooling Degree Days
514
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside ID closest to Fenn Ranger Station 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 (50°F here).
- Cedar Rapids, IA 50°F · 0.0°F off
- Centerville, IA 50°F · 0.0°F off
- Chalmers, IN 50°F · 0.0°F off
- Coulee Dam, WA 50°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (40.6" here), excluding temperature-peer places.
- Asheville, NC 40.6" · 0.0" off
- Bowling Green, MO 40.6" · 0.0" off
- Franklin, TX 40.6" · 0.0" off
- Decatur, IN 40.6" · 0.0" off
Snow and freeze rhythm
When cold and snow define Fenn Ranger Station
heating led · moderate · mid swing
Fenn Ranger Station's energy balance leans toward cold weather: 5,979 annual heating degree days against 514 for cooling. Its 40.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Fenn Ranger Station's frost-free season lasts about 177 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Fenn Ranger Station coldest normal
December
The monthly mean of 31°F (0°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Fenn Ranger Station typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Fenn Ranger Station snow peak
December
Fenn Ranger Station averages 43.1 inches of snow a year, with December the snowiest month on the normals.
Questions about Fenn Ranger Station's climate
How much snow does Fenn Ranger Station get? ▼
How many days above 90°F does Fenn Ranger Station get? ▼
How much energy does heating and cooling require in Fenn Ranger Station? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Fenn Ranger Station's primary station: FENN RS (USC00103143). 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 Fenn Ranger Station; 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 Fenn Ranger Station 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.