Eugene Mahlon Sweet, OR 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 Eugene Mahlon Sweet's primary NOAA station, EUGENE MAHLON SWEET AP.
The climate verdict for Eugene Mahlon Sweet
A compact 27.3°F seasonal swing gives Eugene Mahlon Sweet, Oregon a steadier-than-extreme annual shape. NOAA reports an annual average of 53°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 53°F
- yearly average temperature, NOAA normal
- 68/100
- comfort score, above 56% of station-mapped location scores
- 40.8"
- yearly precipitation total
- 195 days
- growing season, frost-free days
Eugene Mahlon Sweet: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00024221 · Eugene Mahlon Sweet, OR 53°F mean · 40.8" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-NARROW · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 53°F
- RANK-MID #3,705
- PHOTO-FINISH ≈ Silverton
- PRCP-MID 40.8"
- SWING-NARROW 27°F
- COMF-MID 68/100
- LOAD-HEAT 4,616 HDD
- STN-1 USW00024221
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Silverton, OR ( -0.1 °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 OR station list.
- Eugene Mahlon S… (this station) 53°F
- Cold Corvallis State…, OR 53°F
- Hot Mtn City, GA 53°F
- Near Silverton, OR 53°F
- Near Mcminnville, OR 53°F
Climate Living Index · Eugene Mahlon Sweet
Eugene Mahlon Sweet: 78/100 · grade B
Eugene Mahlon Sweet publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals · NOAA hourly normals); 1 missing weight rescale to 100.
PlainClimate-derived for Eugene Mahlon Sweet, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Summer moisture balance | 51.4°F mean dew point | 95/100 · A |
| Precipitation balance | 40.8 in · 5.8 from 35 in | 79/100 · B |
| Frost-free season | 195 days/year | 61/100 · C |
| Annual temperature balance | 53.1°F · 14.4° from 67.5°F | 53/100 · D |
Eugene Mahlon Sweet · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Eugene Mahlon Sweet is a temperate Köppen climate: Csb
Coldest-month mean 40.6°F and warmest-month mean 67.9°F place this station in temperate, dry-summer, warm summer climates (Csb). Class Csb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, warm summer.
- Köppen code
- Csb
- Group
- Temperate
- Warmest month
- 67.9°F
- Coldest month
- 40.6°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 Eugene Mahlon Sweet sits across the climate record
Three NOAA fields for Eugene Mahlon Sweet's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 54th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 60th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 93%
- Warmest-to-coldest month gap for Eugene Mahlon Sweet is compact versus 6,861 complete station-years.
How Eugene Mahlon Sweet compares across U.S. station-mapped locations
Eugene Mahlon Sweet's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 44% score exceeds 56% 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%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 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
Eugene Mahlon Sweet's measured station temperature trend
MethodologyAcross 76 complete annual observations from 1939 to 2025, EUGENE MAHLON SWEET AP 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.
- Eugene Mahlon Sweet 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 | 48°F (9°C) | 35°F (2°C) | 41°F (5°C) | 6.0" | 11.2 | 0.0 |
| February | 52°F (11°C) | 35°F (2°C) | 43°F (6°C) | 4.7" | 10.4 | 0.0 |
| March | 57°F (14°C) | 37°F (3°C) | 47°F (8°C) | 4.6" | 6.4 | 0.0 |
| April | 61°F (16°C) | 40°F (4°C) | 51°F (10°C) | 3.3" | 1.6 | 0.0 |
| May | 68°F (20°C) | 44°F (7°C) | 56°F (13°C) | 2.5" | 0.4 | 0.1 |
| June | 74°F (23°C) | 48°F (9°C) | 61°F (16°C) | 1.2" | 0.0 | 1.4 |
| July | 84°F (29°C) | 52°F (11°C) | 68°F (20°C) | 0.3" | 0.0 | 7.0 |
| August | 84°F (29°C) | 52°F (11°C) | 68°F (20°C) | 0.4" | 0.0 | 7.0 |
| September | 78°F (26°C) | 48°F (9°C) | 63°F (17°C) | 1.4" | 0.1 | 2.4 |
| October | 65°F (18°C) | 42°F (5°C) | 53°F (12°C) | 3.2" | 2.7 | 0.0 |
| November | 53°F (12°C) | 38°F (3°C) | 46°F (8°C) | 6.0" | 7.5 | 0.0 |
| December | 47°F (8°C) | 34°F (1°C) | 41°F (5°C) | 7.2" | 11.6 | 0.0 |
The year, day by day
The calendar barely moves in Eugene Mahlon Sweet: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 34°F near December 18 and 86°F near July 28.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 34°F around December 18.
Where the wet dates fall
The likeliest wet date is December 10, when 61% of years recorded at least a hundredth of an inch. The driest is July 30 at 7%. Summed across the calendar, that is about 146 wet dates a year.
The widest day
July 28 carries the biggest normal gap between afternoon and dawn, 34°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Eugene Mahlon Sweet.
Where Eugene Mahlon Sweet Stands Nationally
Daily temperature swings run wider than most of the country, peaking near 34°F between the normal high and low.
Eugene Mahlon Sweet 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
17.9 days with precipitation
15.5 days with precipitation
17.6 days with precipitation
15.5 days with precipitation
11.9 days with precipitation
7.9 days with precipitation
2.6 days with precipitation
2.8 days with precipitation
5.9 days with precipitation
11.9 days with precipitation
17.5 days with precipitation
18.7 days with precipitation
Eugene Mahlon Sweet's wet season runs through the cold months
December, January and February carry 44% of the year's precipitation here, while June through August contribute 5%. 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 an unusually narrow 27.3°F seasonal spread.
- Wettest month
- December, 7.2"
- Driest month
- July, 0.3"
- Wettest three months
- December, January, November (47% 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.
How Eugene Mahlon Sweet's precipitation splits across the calendar
About 146 days a year record measurable precipitation here, carrying 40.8" between them, or roughly 0.28 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.
Frost Dates & Growing Season
First Fall Freeze
October 23
50% probability date
Last Spring Freeze
April 11
50% probability date
Growing Season
195 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,616
Higher = more heating needed
Cooling Degree Days
293
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 86% | 6.5 | 18% | 55% |
| February | 82% | 7.3 | 25% | 44% |
| March | 79% | 7.2 | 27% | 43% |
| April | 75% | 6.8 | 30% | 33% |
| May | 73% | 6.4 | 31% | 31% |
| June | 65% | 7.0 | 47% | 20% |
| July | 60% | 7.2 | 61% | 10% |
| August | 62% | 6.8 | 56% | 11% |
| September | 71% | 6.4 | 51% | 20% |
| October | 83% | 6.4 | 28% | 45% |
| November | 87% | 6.8 | 14% | 56% |
| December | 88% | 6.9 | 12% | 64% |
Nationwide similar cities
Other rankable U.S. places outside OR closest to Eugene Mahlon Sweet 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 (53°F here).
- Allentown, PA 53°F · 0.0°F off
- Danville, IL 53°F · 0.0°F off
- Decatur, IL 53°F · 0.0°F off
- Downieville, CA 53°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (40.8" here), excluding temperature-peer places.
- Gallatin, MO 40.8" · 0.0" off
- Enosburg Falls, VT 40.8" · 0.0" off
- Tacoma, WA 40.8" · 0.0" off
- Warren, OH 40.8" · 0.0" off
Data-derived climate profile
How Eugene Mahlon Sweet's climate pattern fits together
heating led · moderate · low swing
Heating is the larger measured load in Eugene Mahlon Sweet, at 4,616 degree days versus 293 for cooling. Unlike a strongly continental record, however, its 27.3°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Eugene Mahlon Sweet's frost-free season lasts about 195 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Temperature varies within a narrow 27.3°F band across the normal year. August and December mark the typical warm and cold ends of the calendar. The annual average is 53°F. Monthly rows still matter, but they refine a steady profile rather than reveal two climatic extremes.
Eugene Mahlon Sweet's 40.8 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Eugene Mahlon Sweet'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 Eugene Mahlon Sweet, not an official NOAA class or a year-ahead forecast.
Questions about Eugene Mahlon Sweet's climate
How much rain does Eugene Mahlon Sweet get? ▼
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Eugene Mahlon Sweet's primary station: EUGENE MAHLON SWEET AP (USW00024221). 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 Eugene Mahlon Sweet; 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 Eugene Mahlon Sweet 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.