Richfield, 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 Richfield's primary NOAA station, RICHFIELD.
The climate verdict for Richfield
Dryness leads the climate profile for Richfield, Idaho, with 10.5 inches of precipitation a year. NOAA records an annual average of 46°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.
- 46°F
- yearly average temperature, NOAA normal
- 49/100
- comfort score, above 18% of station-mapped location scores
- 10.5"
- annual precipitation · 29" snow
- 125 days
- frost-free growing season
Richfield: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00107673 · Richfield, ID 46°F mean · 10.5" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 46°F
- RANK-COOL #1,578
- PHOTO-FINISH ≈ Huntley
- PRCP-ARID 10.5"
- SWING-WIDE 48°F
- COMF-LOW 49/100
- LOAD-HEAT 7,336 HDD
- STN-1 USC00107673
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Huntley Exp Stn, MT (+ 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.
- Richfield (this station) 46°F
- Cold Lebanon, NH 46°F
- Hot Silver City, ID 46°F
- Near Huntley, MT 46°F
- Near Roosevelt Radio, UT 46°F
Climate Living Index · Richfield
Richfield: 18/100 · grade F
Richfield publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Richfield, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 28.6 inches/year | 40/100 · D |
| Annual temperature balance | 46.1°F · 21.4° from 67.5°F | 24/100 · F |
| Precipitation balance | 10.5 in · 24.5 from 35 in | 14/100 · F |
| Frost-free season | 125 days/year | 9/100 · F |
| Normal heat + freeze calendar | 213 calendar days | 8/100 · F |
Richfield · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Richfield'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
- 71.0°F
- Coldest month
- 22.8°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 Richfield sits across the climate record
Three NOAA fields for Richfield's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 77%
- Among 6,861 stations, Richfield sits in the cooler third of annual means.
- Annual precipitation
- Drier than 93%
- Richfield's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 74%
- Warmest-to-coldest month gap for Richfield is large versus 6,861 complete station-years.
How Richfield compares across U.S. station-mapped locations
Richfield'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
Richfield's measured station temperature trend
MethodologyAcross 64 complete annual observations from 1953 to 2025, RICHFIELD warmed at a fitted rate of 0.19°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Richfield primary station fitted change +0.19 °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 | 32°F (0°C) | 14°F (-10°C) | 23°F (-5°C) | 1.5" | 11.5" | 30.9 | 0.0 |
| February | 37°F (3°C) | 18°F (-8°C) | 28°F (-2°C) | 0.9" | 6.7" | 27.2 | 0.0 |
| March | 49°F (9°C) | 25°F (-4°C) | 37°F (3°C) | 1.0" | 1.0" | 26.7 | 0.0 |
| April | 58°F (15°C) | 31°F (-1°C) | 45°F (7°C) | 0.9" | 0.3" | 17.8 | 0.0 |
| May | 68°F (20°C) | 39°F (4°C) | 54°F (12°C) | 1.1" | 0.0" | 6.4 | 0.4 |
| June | 78°F (26°C) | 46°F (8°C) | 62°F (17°C) | 0.7" | 0.0" | 0.7 | 4.0 |
| July | 89°F (32°C) | 53°F (12°C) | 71°F (22°C) | 0.2" | 0.0" | 0.0 | 16.3 |
| August | 88°F (31°C) | 52°F (11°C) | 70°F (21°C) | 0.3" | 0.0" | 0.1 | 13.9 |
| September | 77°F (25°C) | 43°F (6°C) | 60°F (16°C) | 0.5" | 0.0" | 1.9 | 2.4 |
| October | 62°F (17°C) | 32°F (0°C) | 47°F (8°C) | 0.9" | 0.1" | 16.2 | 0.1 |
| November | 45°F (7°C) | 23°F (-5°C) | 34°F (1°C) | 0.9" | 2.1" | 26.6 | 0.0 |
| December | 33°F (0°C) | 15°F (-9°C) | 24°F (-4°C) | 1.7" | 6.9" | 30.4 | 0.0 |
The year, day by day
Richfield works both ends of the calendar. Normal highs climb to 91°F by July 28 and hold at or above 90°F on 23 dates, then normal lows drop to freezing or below on 190 dates, bottoming at 13°F around January 1.
When the heat sits
Normal highs reach 90°F from July 18 through August 9, covering 23 dates. The broader mild season, normal highs of 70°F or more, runs May 21 to October 1.
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 17, covering 190 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 January 3, when 26% of years recorded at least a hundredth of an inch. The driest is July 16 at 6%. Summed across the calendar, that is about 65 wet dates a year.
The widest day
July 21 carries the biggest normal gap between afternoon and dawn, 36°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Richfield.
Where Richfield 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 36°F, sharper than nine in ten ranked stations see.
Richfield 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: 11.5"
7.8 days with precipitation
Snow: 6.7"
6.7 days with precipitation
Snow: 1.0"
6.8 days with precipitation
Snow: 0.3"
6.5 days with precipitation
6.8 days with precipitation
4.0 days with precipitation
1.8 days with precipitation
2.2 days with precipitation
3.6 days with precipitation
Snow: 0.1"
5.0 days with precipitation
Snow: 2.1"
5.7 days with precipitation
Snow: 6.9"
7.5 days with precipitation
Richfield's wet season runs through the cold months
December, January and February carry 39% of the year's precipitation here, while June through August contribute 11%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a wide 48.2°F gap between its warmest and coldest month.
- Wettest month
- December, 1.7"
- Driest month
- July, 0.2"
- Wettest three months
- December, January, May (41% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
Richfield is dry, and what does fall arrives gently
Only about 64 days a year record measurable precipitation here, 18% of the calendar, and they carry 10.5" between them. At roughly 0.16 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 January at about 8 wet days; the driest is July at about 2.
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 Richfield
Richfield averages 28.6 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 11 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: 28.6 inches of depth.
- Days recording measurable snow: about 11 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 26
50% probability date
Last Spring Freeze
May 24
50% probability date
Growing Season
125 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,336
Higher = more heating needed
Cooling Degree Days
488
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ID closest to Richfield 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).
- Burlington, WI 46°F · 0.0°F off
- Colstrip, MT 46°F · 0.0°F off
- Cottonwood, SD 46°F · 0.0°F off
- Deaver, WY 46°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (10.5" here), excluding temperature-peer places.
- Townsend, MT 10.6" · 0.0" off
- Escalante, UT 10.6" · 0.0" off
- Palisade, CO 10.5" · 0.0" off
- Merced, CA 10.4" · 0.1" off
Snow and freeze rhythm
When cold and snow define Richfield
heating led · dry · mid swing
Richfield's energy balance leans toward cold weather: 7,336 annual heating degree days against 488 for cooling. Its 48.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 125 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. Richfield coldest normal
January
Averaging 23°F (-5°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Richfield typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Richfield snow peak
January
Richfield averages 28.6 inches of snow a year, with January the snowiest month on the normals.
Questions about Richfield's climate
How much snow does Richfield get? ▼
How many days above 90°F does Richfield get? ▼
How much energy does heating and cooling require in Richfield? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Richfield's primary station: RICHFIELD (USC00107673). 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 1667600). Match rule for Richfield: 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 Richfield 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.