Downey, 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 Downey's primary NOAA station, DOWNEY.
The climate verdict for Downey
Dryness leads the climate profile for Downey, Idaho, with 15.6 inches of precipitation a year. NOAA records an annual average of 46°F. At 52/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 24% of scores.
- 46°F
- yearly average temperature, NOAA normal
- 52/100
- comfort score, above 24% of station-mapped location scores
- 15.6"
- yearly precipitation total
- 110 days
- frost-free growing season
Downey: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00102667 · Downey, ID 46°F mean · 15.6" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 46°F
- RANK-COOL #1,441
- PHOTO-FINISH ≈ Heart Mtn
- PRCP-DRY 15.6"
- SWING-WIDE 47°F
- COMF-LOW 52/100
- LOAD-HEAT 7,390 HDD
- STN-1 USC00102667
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Heart Mtn, WY (+ 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.
- Downey (this station) 46°F
- Cold Franklinville, NY 46°F
- Hot White Lake, MI 46°F
- Near Heart Mtn, WY 46°F
- Near Sanford, ME 46°F
Climate Living Index · Downey
Downey: 17/100 · grade F
Downey publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Downey, not an official NOAA rating. Rankings still use Comfort Score 52/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 15.6 in · 19.4 from 35 in | 31/100 · F |
| Annual temperature balance | 45.6°F · 21.9° from 67.5°F | 22/100 · F |
| Normal heat + freeze calendar | 211 calendar days | 9/100 · F |
| Frost-free season | 110 days/year | 3/100 · F |
Downey · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Downey is a continental Köppen climate: Dfb
Coldest-month mean 23.3°F and warmest-month mean 69.8°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 69.8°F
- Coldest month
- 23.3°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 Downey sits across the climate record
Three NOAA fields for Downey's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 79%
- Among 6,861 stations, Downey sits in the cooler third of annual means.
- Annual precipitation
- Drier than 81%
- Downey's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 66th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Downey compares across U.S. station-mapped locations
Downey's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
52 24th percentile score exceeds 24% 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 32°F (0°C) | 14°F (-10°C) | 23°F (-5°C) | 1.1" | 30.5 | 0.0 |
| February | 37°F (3°C) | 18°F (-8°C) | 27°F (-3°C) | 1.1" | 24.8 | 0.0 |
| March | 48°F (9°C) | 25°F (-4°C) | 36°F (2°C) | 1.5" | 25.2 | 0.0 |
| April | 58°F (14°C) | 31°F (-1°C) | 44°F (7°C) | 1.5" | 16.7 | 0.0 |
| May | 67°F (19°C) | 38°F (3°C) | 53°F (11°C) | 2.3" | 6.4 | 0.3 |
| June | 78°F (26°C) | 44°F (7°C) | 61°F (16°C) | 1.3" | 1.0 | 3.6 |
| July | 89°F (31°C) | 51°F (11°C) | 70°F (21°C) | 1.0" | 0.0 | 17.0 |
| August | 88°F (31°C) | 49°F (9°C) | 68°F (20°C) | 1.0" | 0.0 | 14.3 |
| September | 77°F (25°C) | 41°F (5°C) | 59°F (15°C) | 1.4" | 3.3 | 2.3 |
| October | 62°F (17°C) | 31°F (0°C) | 47°F (8°C) | 1.3" | 17.2 | 0.0 |
| November | 46°F (8°C) | 23°F (-5°C) | 34°F (1°C) | 1.1" | 26.1 | 0.0 |
| December | 34°F (1°C) | 16°F (-9°C) | 25°F (-4°C) | 1.1" | 29.3 | 0.0 |
The year, day by day
Downey works both ends of the calendar. Normal highs climb to 91°F by July 27 and hold at or above 90°F on 18 dates, then normal lows drop to freezing or below on 193 dates, bottoming at 13°F around January 2.
When the heat sits
Normal highs reach 90°F from July 20 through August 6, covering 18 dates. The broader mild season, normal highs of 70°F or more, runs May 26 to September 29.
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 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.
The widest day
August 25 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 Downey.
Where Downey 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.
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 193 nights a year, more than most ranked stations.
Downey earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
Downey 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 21%, with neither reaching the 35% that would mark a distinct wet season. Downey has no dry season to plan around, though it does carry a wide 46.5°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 2.3" and July 1.0". The three wettest months together take 34% 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.
Frost Dates & Growing Season
First Fall Freeze
September 18
50% probability date
Last Spring Freeze
May 31
50% probability date
Growing Season
110 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,390
Higher = more heating needed
Cooling Degree Days
353
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ID closest to Downey 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 (46°F here).
- Appleton, WI 46°F · 0.0°F off
- Cobleskill, NY 46°F · 0.0°F off
- La Crosse, WI 46°F · 0.0°F off
- Livingston, MT 46°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (15.6" here), excluding temperature-peer places.
- Fox, AK 15.6" · 0.0" off
- Plevna, MT 15.6" · 0.0" off
- Scottsbluff, NE 15.6" · 0.0" off
- Virginia City, MT 15.7" · 0.0" off
Data-derived climate profile
How Downey's climate pattern fits together
heating led · dry · mid swing
Downey's energy balance leans toward cold weather: 7,390 annual heating degree days against 353 for cooling. Its 46.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 110 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 Downey's middle-range seasonal profile. The measured spread is 46.5°F. The annual average is 46°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Downey's cold-season load does not imply a wet climate. Annual precipitation is 15.6 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.
These labels group NOAA 1991-2020 normals from Downey's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Downey, not an official NOAA class or a year-ahead forecast.
Questions about Downey's climate
How much rain does Downey get? ▼
How many days above 90°F does Downey get? ▼
How much energy does heating and cooling require in Downey? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Downey's primary station: DOWNEY (USC00102667). 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 an incorporated place (GEOID 1622600). Match rule for Downey: 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 Downey 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.