Lamoni, IA Climate: Temperature by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Lamoni's primary NOAA station, LAMONI - 2 stations mapped to the area.
The climate verdict for Lamoni
Lamoni, Iowa has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 51°F. July is the warmest month at 76°F and January the coldest at 23°F.
- 51°F
- yearly average temperature, NOAA normal
- 187 days
- growing season, frost-free days
Lamoni: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00014993 · Lamoni, IA 51°F mean
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-MULTI · BOOK-PART
- TEMP-COOL 51°F
- RANK-MID #3,156
- PHOTO-FINISH ≈ Wray
- PRCP-UNK Rain n/a
- SWING-WIDE 52°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 5,950 HDD
- STN-MULTI USW00014993
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Wray, CO (+ 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 IA station list.
- Lamoni (this station) 51°F
- Cold Channahon Dresd…, IL 51°F
- Hot Kirksville, MO 51°F
- Near Wray, CO 51°F
- Near Sterling, CO 51°F
Climate Living Index · Lamoni
Lamoni: 53/100 · grade D
Lamoni publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Lamoni, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 132 calendar days | 58/100 · C |
| Frost-free season | 187 days/year | 55/100 · C |
| Annual temperature balance | 51.2°F · 16.3° from 67.5°F | 46/100 · D |
Lamoni · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Lamoni sits across the climate record
Available NOAA 1991–2020 fields for Lamoni are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- 46th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Seasonal temperature swing
- Wider than 86%
- Warmest-to-coldest month gap for Lamoni is large versus 6,861 complete station-years.
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) | 15°F (-10°C) | 23°F (-5°C) | N/A | N/A | 29.5 | 0.0 |
| February | 38°F (3°C) | 19°F (-7°C) | 28°F (-2°C) | N/A | N/A | 26.0 | 0.0 |
| March | 51°F (10°C) | 30°F (-1°C) | 40°F (5°C) | N/A | N/A | 14.5 | 0.0 |
| April | 62°F (17°C) | 40°F (5°C) | 51°F (11°C) | N/A | N/A | 8.0 | 0.0 |
| May | 72°F (22°C) | 52°F (11°C) | 62°F (17°C) | N/A | N/A | 0.5 | 0.5 |
| June | 82°F (28°C) | 62°F (17°C) | 72°F (22°C) | N/A | N/A | 0.0 | 2.0 |
| July | 85°F (29°C) | 66°F (19°C) | 76°F (24°C) | N/A | N/A | 0.0 | 7.5 |
| August | 84°F (29°C) | 64°F (18°C) | 74°F (23°C) | N/A | N/A | 0.0 | 3.0 |
| September | 77°F (25°C) | 55°F (13°C) | 66°F (19°C) | N/A | N/A | 0.0 | 2.0 |
| October | 64°F (18°C) | 43°F (6°C) | 53°F (12°C) | N/A | N/A | 8.0 | 0.0 |
| November | 49°F (10°C) | 30°F (-1°C) | 40°F (4°C) | N/A | N/A | 18.5 | 0.0 |
| December | 38°F (3°C) | 20°F (-7°C) | 29°F (-2°C) | N/A | N/A | 27.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 26, short of 90°F on every date, while 132 dates carry a normal low at or below freezing, the coldest 14°F near January 13.
The freezing stretch
The normal low stays at or below 32°F into March 20, then returns to freezing around November 10, covering 132 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
September 5 carries the biggest normal gap between afternoon and dawn, 22°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Lamoni.
Where Lamoni Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Lamoni 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 and snowfall
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
5,950
Higher = more heating needed
Cooling Degree Days
967
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside IA closest to Lamoni 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 (51°F here).
- Bellingham, WA 51°F · 0.0°F off
- Chicago, IL 51°F · 0.0°F off
- Denver, CO 51°F · 0.0°F off
- Eaton, OH 51°F · 0.0°F off
Data-derived climate profile
How Lamoni's climate pattern fits together
heating led · mid swing
Lamoni's energy balance leans toward cold weather: 5,950 annual heating degree days against 967 for cooling. Its 52.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
Lamoni'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 Lamoni's middle-range seasonal profile. The measured spread is 52.1°F. The annual average is 51°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
A moisture-range label is withheld because Lamoni'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 Lamoni'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 Lamoni, not an official NOAA class or a year-ahead forecast.
Questions about Lamoni's climate
How cold does Lamoni get in winter? ▼
How much energy does heating and cooling require in Lamoni? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Lamoni's primary station: LAMONI (USW00014993). 2 NOAA stations are mapped to the Lamoni area; the primary station's record is used for consistency. 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 1942960). Match rule for Lamoni: 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 Lamoni 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.