Eureka, KS Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Eureka's primary NOAA station, EUREKA 1E.
The climate verdict for Eureka
Eureka, Kansas has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 55°F. It scores 78/100 for climate comfort (good), putting it in the top third of station-mapped location scores and exceeding 72% of them.
- 55°F
- average temperature, NOAA 1991-2020 normal
- 78/100
- comfort score, above 72% of station-mapped location scores
- 40.0"
- annual precipitation · 9" snow
- 187 days
- frost-free growing season
Eureka: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00142622 · Eureka, KS 55°F mean · 40.0" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 55°F
- RANK-UPPER #4,185
- PHOTO-FINISH ≈ Pleasant Hill
- PRCP-MID 40.0"
- SWING-WIDE 48°F
- COMF-TOP 78/100
- LOAD-HEAT 4,890 HDD
- STN-1 USC00142622
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Pleasant Hill, MO ( -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 KS station list.
- Eureka (this station) 55°F
- Cold Pleasant Hill, MO 55°F
- Hot Jefferson City…, MO 55°F
- Near Garnett, KS 55°F
- Near Silverpeak, NV 55°F
Climate Living Index · Eureka
Eureka: 58/100 · grade C
Eureka publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Eureka, not an official NOAA rating. Rankings still use Comfort Score 78/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 40.0 in · 5.0 from 35 in | 82/100 · B |
| Snowfall burden | 8.6 inches/year | 65/100 · C |
| Annual temperature balance | 55.3°F · 12.2° from 67.5°F | 60/100 · C |
| Frost-free season | 187 days/year | 55/100 · C |
| Normal heat + freeze calendar | 160 calendar days | 39/100 · F |
Eureka · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Eureka is a continental Köppen climate: Dfa
Coldest-month mean 30.7°F and warmest-month mean 78.8°F place this station in continental, no dry season, hot summer climates (Dfa). Class Dfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, hot summer.
- Köppen code
- Dfa
- Group
- Continental
- Warmest month
- 78.8°F
- Coldest month
- 30.7°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 Eureka sits across the climate record
Three NOAA fields for Eureka's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 61st percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 58th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 73%
- Warmest-to-coldest month gap for Eureka is large versus 6,861 complete station-years.
How Eureka compares across U.S. station-mapped locations
Eureka's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
78 Top 28% score exceeds 72% 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%). Below this entry.
- 70–80: 650 station-mapped locations (11%). This entry sits in this band.
- 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
Eureka's measured station temperature trend
MethodologyAcross 74 complete annual observations from 1910 to 2025, EUREKA 1E 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.
- Eureka 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 43°F (6°C) | 19°F (-7°C) | 31°F (-1°C) | 1.0" | 2.8" | 28.2 | 0.0 |
| February | 48°F (9°C) | 22°F (-5°C) | 35°F (2°C) | 1.5" | 1.2" | 23.1 | 0.0 |
| March | 58°F (15°C) | 32°F (0°C) | 45°F (7°C) | 2.5" | 0.9" | 16.2 | 0.0 |
| April | 68°F (20°C) | 42°F (5°C) | 55°F (13°C) | 3.6" | 0.1" | 4.6 | 0.3 |
| May | 76°F (24°C) | 53°F (12°C) | 64°F (18°C) | 6.0" | 0.0" | 0.1 | 0.9 |
| June | 85°F (29°C) | 63°F (17°C) | 74°F (23°C) | 5.7" | 0.0" | 0.0 | 7.5 |
| July | 90°F (32°C) | 67°F (20°C) | 79°F (26°C) | 4.6" | 0.0" | 0.0 | 17.4 |
| August | 90°F (32°C) | 65°F (18°C) | 77°F (25°C) | 4.1" | 0.0" | 0.0 | 16.8 |
| September | 82°F (28°C) | 56°F (13°C) | 69°F (21°C) | 3.8" | 0.0" | 0.0 | 6.3 |
| October | 71°F (21°C) | 44°F (6°C) | 57°F (14°C) | 3.3" | 0.1" | 3.6 | 0.4 |
| November | 57°F (14°C) | 31°F (0°C) | 44°F (7°C) | 2.4" | 0.5" | 16.0 | 0.0 |
| December | 46°F (8°C) | 22°F (-5°C) | 34°F (1°C) | 1.6" | 3.0" | 26.5 | 0.0 |
The year, day by day
Eureka works both ends of the calendar. Normal highs climb to 91°F by July 24 and hold at or above 90°F on 35 dates, then normal lows drop to freezing or below on 125 dates, bottoming at 19°F around January 15.
When the heat sits
Normal highs reach 90°F from July 11 through August 14, covering 35 dates. The broader mild season, normal highs of 70°F or more, runs April 26 to October 17.
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 17, then returns to freezing around November 14, covering 125 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 May 9, when 33% of years recorded at least a hundredth of an inch. The driest is January 24 at 15%. Summed across the calendar, that is about 82 wet dates a year.
The widest day
March 25 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Eureka.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 2.8"
4.8 days with precipitation
Snow: 1.2"
5.1 days with precipitation
Snow: 0.9"
6.7 days with precipitation
Snow: 0.1"
7.7 days with precipitation
10.3 days with precipitation
8.8 days with precipitation
7.9 days with precipitation
6.9 days with precipitation
6.3 days with precipitation
Snow: 0.1"
6.6 days with precipitation
Snow: 0.5"
5.2 days with precipitation
Snow: 3.0"
5.1 days with precipitation
Eureka runs a summer-peaked wet season
36% of Eureka's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is May at 6.0", on a wide 48.1°F gap between its warmest and coldest month. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: May, June, July, taking 41% of the annual total between them.
- Driest month: January at 1.0".
- Winter share: 10% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
When it rains in Eureka, it arrives in quantity
40.0" of precipitation falls across only about 81 wet days here, averaging 0.49 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 81 a year, 22% of all days
- Average depth per wet day
- 0.49 inches
- Most wet days
- May, about 10
- Fewest wet days
- January, about 5
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Snow reaches Eureka, but rarely amounts to much
The normals record 8.6 inches of snow a year here, most likely in December. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 6 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
October 20
50% probability date
Last Spring Freeze
April 16
50% probability date
Growing Season
187 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,890
Higher = more heating needed
Cooling Degree Days
1,392
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside KS closest to Eureka 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 (55°F here).
- Beattyville, KY 55°F · 0.0°F off
- Clinton, MO 55°F · 0.0°F off
- Fort Leonard Wood, MO 55°F · 0.0°F off
- Gatlinburg, TN 55°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (40.0" here), excluding temperature-peer places.
- Muscatine, IA 40.0" · 0.0" off
- Oberlin, OH 40.0" · 0.0" off
- Platteville, WI 40.0" · 0.0" off
- Graton, CA 39.9" · 0.0" off
Data-derived climate profile
How Eureka's climate pattern fits together
heating led · moderate · mid swing
Eureka's energy balance leans toward cold weather: 4,890 annual heating degree days against 1,392 for cooling. Its 48.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
Eureka's frost-free season lasts about 187 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Eureka's middle-range seasonal profile. The measured spread is 48.1°F. The annual average is 55°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Eureka's 40.0 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Annual snowfall totals 8.6 inches. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Eureka'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 Eureka, not an official NOAA class or a year-ahead forecast.
Questions about Eureka's climate
How much rain does Eureka get? ▼
How many days above 90°F does Eureka get? ▼
How much energy does heating and cooling require in Eureka? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Eureka's primary station: EUREKA 1E (USC00142622). 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 2021800). Match rule for Eureka: 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 Eureka 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.