Powell, ID Climate: Temperature by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Powell's primary NOAA station, POWELL.
The climate verdict for Powell
Powell, Idaho has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 43°F. July is the warmest month at 64°F and December the coldest at 24°F.
- 43°F
- yearly average temperature, NOAA normal
- 104 days
- growing season, frost-free days
Powell: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00107320 · Powell, ID 43°F mean
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-MID · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COOL 43°F
- RANK-COOL #755
- PHOTO-FINISH ≈ Sugar City
- PRCP-UNK Rain n/a
- SWING-MID 40°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 8,242 HDD
- STN-1 USC00107320
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Sugar City, ID (+ 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.
- Powell (this station) 43°F
- Cold Austin, OR 43°F
- Hot Sugar City, ID 43°F
- Near E Hawley, MA 43°F
- Near Headquarters, ID 43°F
Climate Living Index · Powell
Powell: 8/100 · grade F
Powell publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Powell, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 42.7°F · 24.8° from 67.5°F | 11/100 · F |
| Normal heat + freeze calendar | 211 calendar days | 9/100 · F |
| Frost-free season | 104 days/year | 0/100 · F |
Powell · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Powell sits across the climate record
Available NOAA 1991–2020 fields for Powell are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 89%
- Among 6,861 stations, Powell sits in the cooler third of annual means.
- Seasonal temperature swing
- 37th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
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) | 18°F (-8°C) | 25°F (-4°C) | N/A | 31.0 | 0.0 |
| February | 37°F (3°C) | 18°F (-8°C) | 28°F (-2°C) | N/A | 27.9 | 0.0 |
| March | 46°F (8°C) | 24°F (-5°C) | 35°F (1°C) | N/A | 30.2 | 0.0 |
| April | 53°F (12°C) | 29°F (-2°C) | 41°F (5°C) | N/A | 24.6 | 0.0 |
| May | 64°F (18°C) | 35°F (2°C) | 50°F (10°C) | N/A | 12.1 | 0.3 |
| June | 71°F (22°C) | 42°F (6°C) | 57°F (14°C) | N/A | 1.9 | 1.2 |
| July | 83°F (28°C) | 46°F (8°C) | 64°F (18°C) | N/A | 0.1 | 7.4 |
| August | 82°F (28°C) | 44°F (6°C) | 63°F (17°C) | N/A | 1.0 | 7.7 |
| September | 71°F (21°C) | 37°F (3°C) | 54°F (12°C) | N/A | 10.0 | 1.0 |
| October | 54°F (12°C) | 30°F (-1°C) | 42°F (5°C) | N/A | 21.5 | 0.0 |
| November | 38°F (3°C) | 24°F (-4°C) | 31°F (-1°C) | N/A | 27.5 | 0.0 |
| December | 30°F (-1°C) | 18°F (-8°C) | 24°F (-5°C) | N/A | 30.9 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 28, short of 90°F on every date, while 211 dates carry a normal low at or below freezing, the coldest 17°F near December 23.
The freezing stretch
The normal low stays at or below 32°F into May 4, then returns to freezing around October 7, covering 211 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 5 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 Powell.
Where Powell Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 211 nights a year, placing this among the most frost-prone tenth of ranked stations.
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.
Powell earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
Frost Dates & Growing Season
First Fall Freeze
September 12
50% probability date
Last Spring Freeze
May 31
50% probability date
Growing Season
104 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,242
Higher = more heating needed
Cooling Degree Days
124
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside ID closest to Powell 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 (43°F here).
- Danbury, WI 43°F · 0.0°F off
- Ennis, MT 43°F · 0.0°F off
- Holcombe, WI 43°F · 0.0°F off
- Malone, NY 43°F · 0.0°F off
Data-derived climate profile
How Powell's climate pattern fits together
heating led · mid swing
Powell's energy balance leans toward cold weather: 8,242 annual heating degree days against 124 for cooling. Its 40.3°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 104 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 December mark the typical warm and cold ends of the calendar in Powell's middle-range seasonal profile. The measured spread is 40.3°F. The annual average is 43°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
A moisture-range label is withheld because Powell's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from Powell'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 Powell, not an official NOAA class or a year-ahead forecast.
Questions about Powell's climate
How cold does Powell get in winter? ▼
How much energy does heating and cooling require in Powell? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Powell's primary station: POWELL (USC00107320). 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 Powell; 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 Powell 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.