Amboy, MN 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 Amboy's primary NOAA station, AMBOY.
The climate verdict for Amboy
Winter sets the terms in Amboy, Minnesota. A pronounced 56.5°F seasonal swing and heating demand above twice the cooling total frame an annual average of 47°F. Its climate comfort score of 59/100 (moderate) lands mid-pack nationally, exceeding 37% of station-mapped location scores.
- 47°F
- yearly average temperature, NOAA normal
- 59/100
- comfort score, above 37% of station-mapped location scores
- 32.8"
- annual precipitation · 46" snow
- 160 days
- frost-free growing season
Amboy: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00210157 · Amboy, MN 47°F mean · 32.8" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 47°F
- RANK-COOL #1,921
- PHOTO-FINISH ≈ Emmetsburg
- PRCP-MID 32.8"
- SWING-WIDE 57°F
- COMF-MID 59/100
- LOAD-HEAT 7,257 HDD
- STN-1 USC00210157
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Emmetsburg, IA (+ 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 MN station list.
- Amboy (this station) 47°F
- Cold Clarion, IA 47°F
- Hot Sioux Falls, SD 47°F
- Near Emmetsburg, IA 47°F
- Near Tyndall, SD 47°F
Amboy sits in Minnesota, the #3 coldest U.S. state at 42.2°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Amboy
Amboy: 44/100 · grade D
Amboy publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Amboy, not an official NOAA rating. Rankings still use Comfort Score 59/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 32.8 in · 2.2 from 35 in | 91/100 · A |
| Normal heat + freeze calendar | 154 calendar days | 44/100 · D |
| Frost-free season | 160 days/year | 33/100 · F |
| Annual temperature balance | 47.2°F · 20.3° from 67.5°F | 28/100 · F |
| Snowfall burden | 46.3 inches/year | 23/100 · F |
Amboy · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Amboy is a continental Köppen climate: Dfa
Coldest-month mean 16.9°F and warmest-month mean 73.4°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
- 73.4°F
- Coldest month
- 16.9°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 Amboy sits across the climate record
Three NOAA fields for Amboy's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 72%
- Among 6,861 stations, Amboy sits in the cooler third of annual means.
- Annual precipitation
- 44th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 94%
- Warmest-to-coldest month gap for Amboy is large versus 6,861 complete station-years.
How Amboy compares across U.S. station-mapped locations
Amboy's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 37th percentile score exceeds 37% 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%). This entry sits in this band.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 26°F (-4°C) | 8°F (-13°C) | 17°F (-8°C) | 0.8" | 10.4" | 30.6 | 0.0 |
| February | 30°F (-1°C) | 12°F (-11°C) | 21°F (-6°C) | 0.9" | 8.9" | 27.0 | 0.0 |
| March | 43°F (6°C) | 24°F (-4°C) | 34°F (1°C) | 1.7" | 7.4" | 24.7 | 0.0 |
| April | 59°F (15°C) | 36°F (2°C) | 48°F (9°C) | 3.3" | 3.5" | 10.8 | 0.2 |
| May | 73°F (23°C) | 49°F (9°C) | 61°F (16°C) | 4.3" | 0.1" | 1.4 | 1.6 |
| June | 82°F (28°C) | 60°F (15°C) | 71°F (21°C) | 5.3" | 0.0" | 0.0 | 4.6 |
| July | 84°F (29°C) | 63°F (17°C) | 73°F (23°C) | 4.2" | 0.0" | 0.0 | 6.0 |
| August | 82°F (28°C) | 60°F (15°C) | 71°F (22°C) | 3.9" | 0.0" | 0.0 | 2.4 |
| September | 76°F (24°C) | 52°F (11°C) | 64°F (18°C) | 3.3" | 0.0" | 0.7 | 1.5 |
| October | 62°F (16°C) | 39°F (4°C) | 50°F (10°C) | 2.6" | 0.4" | 8.6 | 0.1 |
| November | 44°F (7°C) | 26°F (-3°C) | 35°F (2°C) | 1.5" | 4.8" | 22.0 | 0.0 |
| December | 30°F (-1°C) | 14°F (-10°C) | 22°F (-5°C) | 1.1" | 10.8" | 30.2 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 85°F around July 8, short of 90°F on every date, while 154 dates carry a normal low at or below freezing, the coldest 8°F near January 19.
The freezing stretch
The normal low stays at or below 32°F into April 4, then returns to freezing around November 3, covering 154 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 June 2, when 36% of years recorded at least a hundredth of an inch. The driest is November 12 at 17%. Summed across the calendar, that is about 90 wet dates a year.
The widest day
September 21 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Amboy.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 10.4"
5.3 days with precipitation
Snow: 8.9"
5.2 days with precipitation
Snow: 7.4"
6.7 days with precipitation
Snow: 3.5"
9.4 days with precipitation
Snow: 0.1"
10.7 days with precipitation
10.7 days with precipitation
8.4 days with precipitation
8.0 days with precipitation
6.9 days with precipitation
Snow: 0.4"
6.9 days with precipitation
Snow: 4.8"
5.0 days with precipitation
Snow: 10.8"
6.6 days with precipitation
Amboy runs a summer-peaked wet season
41% of Amboy'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 June at 5.3", on a wide 56.5°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: June, May, July, taking 42% of the annual total between them.
- Driest month: January at 0.8".
- Winter share: 9% 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 Amboy, it arrives in quantity
32.8" of precipitation falls across only about 90 wet days here, averaging 0.36 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 90 a year, 25% of all days
- Average depth per wet day
- 0.36 inches
- Most wet days
- May, about 11
- Fewest wet days
- November, 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.
Winter brings real snow to Amboy
Amboy averages 46.3 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 20 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: 46.3 inches of depth.
- Days recording measurable snow: about 20 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 14% 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
October 7
50% probability date
Last Spring Freeze
April 30
50% probability date
Growing Season
160 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,257
Higher = more heating needed
Cooling Degree Days
812
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to Amboy 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 (47°F here).
- Burton, MI 47°F · 0.0°F off
- Concord, NH 47°F · 0.0°F off
- Fort Atkinson, WI 47°F · 0.0°F off
- Harrington, WA 47°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (32.8" here), excluding temperature-peer places.
- Lakewood, WI 32.8" · 0.0" off
- Pocahontas, IA 32.8" · 0.0" off
- Sonora, CA 32.8" · 0.0" off
- Eau Claire, WI 32.8" · 0.0" off
Snow and freeze rhythm
When cold and snow define Amboy
heating led · moderate · high swing
Winter and seasonal range jointly define this record. Amboy logs 7,257 heating degree days, more than twice its 812 cooling total, while the typical coldest-to-warmest-month gap reaches 56.5°F. The annual mean therefore compresses two materially different seasons.
Amboy's frost-free season lasts about 160 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Amboy coldest normal
January
Averaging 17°F (-8°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Amboy typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Amboy snow peak
December
Amboy averages 46.3 inches of snow a year, with December the snowiest month on the normals.
Questions about Amboy's climate
How much snow does Amboy get? ▼
How cold does Amboy get in winter? ▼
How much energy does heating and cooling require in Amboy? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Amboy's primary station: AMBOY (USC00210157). 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 2701324). Match rule for Amboy: 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 Amboy 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.